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508

C

HAPTER

13: V

LAN

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Figure 262

VLANs Connected Using an 802.1Q Tagged Link Between Switches

To avoid any VLAN subdivision, it is recommended that all inter-switch
connections are made members of all available VLANs to ensure
connectivity at all times. For example, the connections between Switches
A and B, and between Switches A and C should be 802.1Q tagged and
carrying VLANs 1 and 2 to ensure connectivity.

3Com Network

Director VLAN

Concepts

Discovering VLANs in 3Com Network Director

When you perform a network discovery 3Com Network Director will
retrieve the following information from each supported switch:

■

the textual description of the VLAN

■

the 802.1Q VLAN ID

■

the ports on the device that are tagged members of the VLAN

■

the ports on the device that are untagged members of the VLAN

■

any Layer 3 information associated with the VLAN e.g. IP address and
subnet mask, or protocol type if a non-IP VLAN.

In addition to gathering VLAN information from switches, 3Com Network
Director will also

infer

the VLAN membership of devices that have no

VLANs configured.

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Содержание 3C15500 - Network Director - PC

Страница 1: ...http www 3com com Part No DUA1550 0AAA01 Published May 2004 3Com Network Director User Guide 3C15500 ...

Страница 2: ...ained in or delivered to you in conjunction with this User Guide Unless otherwise indicated 3Com registered trademarks are registered in the United States and may or may not be registered in other countries 3Com and the 3Com logo are registered trademarks of 3Com Corporation XRN is a trademark of 3Com Corporation IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics...

Страница 3: ...ising or publicity pertaining to distribution of the software without specific written prior permission Graphics Server 4 for Microsoft Windows Copyright c 1989 1996 Bits Per Second Ltd PuTTY is copyright 1997 2003 Simon Tatham Portions copyright Robert de Bath Joris van Rantwijk Delian Delchev Andreas Schultz Jeroen Massar Wez Furlong Nicolas Barry and CORE SDI S A Permission is hereby granted fr...

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Страница 5: ...e Step 38 Specify Subnets Step 38 Monitor Core Devices and Links Step 38 Community Strings Step 38 NBX Voice Network Step 38 NBX Call Processors Step 38 Discovery Options Step 39 Scheduled Discovery Step 39 Summary Step 39 Upgrading from 3Com Network Supervisor 39 Coexistence with 3Com Network Director 39 Using saved Network Supervisor maps 40 Using saved 3Com Network Supervisor files 41 The Devic...

Страница 6: ...rica 52 Examples 52 Activating 3Com Network Director 52 Useful Information and References 53 Where can I find the product number for 3Com Network Director 53 Where can I find the serial number for 3Com Network Director 53 Where can I find the license key for 3Com Network Director 53 What product number is right for me 54 Key Considerations 54 What if I lose my Activation Key after registration 54 ...

Страница 7: ...58 My license key to upgrade from 3Com Network Supervisor Advanced Package v2 0 is rejected 58 3 MAIN WINDOW Overview 61 Key Concepts 62 Map Files 62 Components 63 Map 63 Tree 63 Toolbar 63 Status Bar 63 Main Menu 64 File 64 Edit 65 View 66 Device 69 Monitoring 70 Alerts Events 71 RMON 71 Tools 72 Help 73 File Lock Menu Option 73 File Exit Menu Option 74 View Show Toolbar Menu Option 74 Tools Sche...

Страница 8: ...Concepts 92 The Discovery Process Detecting Devices 92 IP Ping 93 Device Capability Detection 93 SNMP Type Detection 94 IP to MAC Resolution 94 End Station Type Recognition 94 Web Type Recognition 95 DNS Name Resolution 95 NBX Phone Detection 95 Device Sizing 96 The Discovery Process Determining Topology 96 Sizing stage 97 Spanning Tree stage 98 Remote Poll Stage broadcast ARP 98 Initial Endstatio...

Страница 9: ...e list 114 Choosing from a list of known subnets 114 Importing subnets from a file 116 Monitor Core Devices and Links Pane 117 Community Strings Pane 118 NBX Voice Network Pane 120 NBX Call Processors Pane 120 Discovery Options Pane 122 Scheduled Discovery Pane 124 Summary Pane 126 The Network Discovery Progress Dialog Box 128 Network Discovery Summary dialog box 130 The Discovery Report 131 Disco...

Страница 10: ...uds in my map 141 Support for 3Com devices 142 Support for third party devices 142 Key Considerations 143 Discovering over slow expensive links 143 Discovery Report Errors and Warnings 144 Discovery Section 144 Topology Section 146 5 WORKING WITH THE MAP Overview 151 Key Concepts 152 The Map 152 The Tree 154 Components 156 Map Structure 156 The Grouped Network View 156 The Ungrouped Network View 1...

Страница 11: ...h Results 194 Using the Find Dialog Box to Select Items for Operations 195 Finding Devices 195 Finding Links 197 Finding NBX Telephony Components 198 Modifying the Map Layout 200 Manually Modifying the Map Contents 202 Adding Items to the Map 202 Linking Items in the Map 204 Keeping the Map Up to date 205 Dynamic Network Login Support 205 Saving and Opening Maps 206 Exporting Maps to Microsoft Vis...

Страница 12: ...rties Dialog Box for a Node 236 Properties Dialog Box for a Supported Device 237 Supported Device Stack or Chassis 238 Supported Device Single Unit 239 Properties Dialog Box for an Unsupported Device 240 Properties Dialog Box for an End Station 241 Properties Dialog Box for a Phone 242 Properties Dialog Box for a Subnet 244 Properties Dialog Box for a Device Group 245 Properties Dialog Box for a C...

Страница 13: ...E NETWORK Overview 273 Key Concepts 273 Monitor 273 Monitoring and Event Generation 274 Monitoring State 274 Monitoring State and the Grouped View 276 Monitoring Techniques 276 IP Ping Monitoring 277 SNMP MIB Data Retrieval 277 Service Polling 278 SNMP Trap Receipt 278 Monitor able Items 279 Monitoring Non 3Com Devices 279 Link Monitoring 279 Components 280 Live Graphs Window 280 Poll Rates 281 Li...

Страница 14: ...ring Mode in the Discovery Wizard 302 Changing Retry Periods and Timeouts 304 Controlling Event Generation from Monitors 304 Registering 3Com Network Director as an SNMP Trap Destination 304 Configuring the Storage of Monitoring Data 306 Examples 308 Enabling Monitoring on the Core Devices in the Map 308 Disabling Monitoring on the Whole Network 308 Configuring Monitoring for a Remote Office 309 E...

Страница 15: ...nts 326 Launching the Events Window 326 Events Main Window 327 Events List 327 Events Toolbar 329 Events Menu 329 Status Bars 331 Working With Events 332 Navigating to Event Sources in the Map 332 Commenting on Events 333 Manually Resolving Events 334 Deleting Events 335 Refreshing the Events List 336 Exporting the Events List to a CSV Format File 337 Printing the Events List 338 Find Dialog Box 3...

Страница 16: ...ettings Dialog Box 356 Threshold Settings Dialog Box 357 Configuring the Storage of Monitoring History for Events 360 Managing Event Ageing 361 Ageing Dialog Box 363 Alert System Components 364 Alerts System Overview 364 Attach Alerts Dialog Box 364 Attaching Alerts to Items 366 Configuring Alerts 366 SNMP Trap Alerts 369 Examples 370 Viewing the Unresolved Events for a Subnet 370 Exporting High S...

Страница 17: ... bandwidth requirements 392 Web server analysis 393 Useful Information and References 395 RRDTool 395 Mapping file format 395 Devices 395 Links between switches hubs 395 Links between a switch hub and an end station cloud 395 Database file format 396 Database management 398 Key Considerations 399 Troubleshooting 399 Mapping file not updating 399 Changing the logging data directory 399 Missing data...

Страница 18: ... 423 Viewing RMON History data for a selected device 423 3Com Switch 4007 424 Viewing RMON history data for a selected link 425 History View dialog box 427 History Entries 429 Viewing data from the RMON Host group 431 Viewing RMON Host data for a selected device 431 3Com Switch 4007 432 Viewing RMON host data for a selected link 433 Host View dialog box 436 Viewing data from the RMON Matrix group ...

Страница 19: ...rt History Restriction 455 Custom Report Types 455 Reports History 455 Export to CSV 456 Components 456 Inventory Report 456 Capacity Report 457 Topology Report 457 Free ports Report 457 Reports Dialog Box 458 Generate Report Tab 459 History Tab 460 Custom Report Types Dialog Box 462 Add Edit Report Type Wizard 463 Columns Step 463 Name and Description Step 467 Summary Step 467 Examples 468 Assess...

Страница 20: ... Registering Devices for Warranty 483 Components 483 Device Warranty Dialog Box 483 Device Warranty Wizard 484 Introduction Step 484 Contact Details Step 485 Partner Reseller Details Step 486 Device Selection Step 488 Summary Step 489 Connection to the 3Com Server 490 What Data is Sent to the 3Com server 490 Reports 491 Web Management 491 Device Warranty 491 Examples 493 Renaming a Switch 4007 usi...

Страница 21: ...Ns configured on your network 499 Configuring VLANs on your network 499 Key Concepts 500 General VLAN concepts 500 About VLANs 500 Benefits of VLANs 501 802 1Q VLANs 502 Port based VLANs 502 Tagged and untagged VLAN membership 503 The Default VLAN 504 Communication between VLANs 504 3Com Network Director VLAN Concepts 508 Discovering VLANs in 3Com Network Director 508 VLAN membership inference 509...

Страница 22: ...supported devices 558 Summary of changes to be made 559 Device History Report 561 Examples 561 Finding all switches on which a particular VLAN is configured 561 Reporting the VLAN configuration of all switches on the network 562 Moving a port to another VLAN 562 Extending your VLANs to include new inter switch links 565 Creating a new Voice VLAN for 3Com NBX systems 568 Useful Information and Refe...

Страница 23: ...589 Configuration Summary Report 591 Device Configuration Panels 592 Configuring User Accounts 592 Add User Account Dialog Box 595 Edit User Account Dialog Box 595 Configuring Access Rights 596 Configuring Trusted IP Hosts 596 Add Trusted IP Address Dialog Box 598 Configuring the Device as a RADIUS Client 599 Configuring System Information 600 Configuring Trap Destinations 601 Add Trap Destination...

Страница 24: ...tization 630 Components 631 Prioritize Network Traffic Wizard 631 Configuration Type Step 632 NBX Step 633 Servers Step 635 Applications Step 636 Application Field Values 637 Finish Step and Progress 638 Prioritization Reports 638 Agent Upgrades Required for Prioritization report 638 Network Prioritization Report 639 Prioritization Configuration Report 639 Examples 640 Applying an Existing Configu...

Страница 25: ... for Blocking 660 Potential Hazards of Blocking Application Traffic 661 Potential Hazards of Blocking SNMP HTTP and Telnet 662 16 UPGRADING DEVICE SOFTWARE Overview 663 Key Concepts 664 Agent Image Files 664 The Internal TFTP Server 664 Scheduling 664 Components 665 Agent Update Wizard 665 Introduction Step 665 Update Type Step 666 Specify Devices and Agent Versions Step 667 Change Agent Version S...

Страница 26: ...uts 683 Configurable Retries 684 Configurable Poll Rates for Active Monitoring 685 Configurable Monitoring Modes 685 Configurable Discovery Options 686 Configurable Monitor Thresholds 686 Components 687 Automatic WAN Link Discovery 687 Manual Layout of WAN Topology 688 Connecting Point to Point WAN Interfaces Together 688 Grouping Logically Connected WAN Interfaces Together 689 Restoring WAN Inter...

Страница 27: ...veries in Multi Site Networks 713 Configuring Monitor Thresholds 714 Examples 715 Grouping Frame Relay Interfaces Together 715 Discovering a Remote Site 727 Configuring Service Monitoring Thresholds Using Historical Reports 742 Useful Information and References 748 Supported WAN Interface Types 748 Key Considerations 750 Problems with Discovering Remote Sites 750 Problems with Discovering WAN Rout...

Страница 28: ... NetSet 766 Launching NetSet for the NBX Call Processor 766 Launching NetSet for a phone or line card 767 Examples 768 Discovering Several NBX Call Processors Simultaneously 768 Receiving an Alert when my Phones Stop Working 768 Useful Information and References 769 NBX system 769 NBX Call Processor 770 NBX NetSet 770 Key Considerations 770 Troubleshooting 770 There is no NBX Call Processor associ...

Страница 29: ...ation of Devices 778 Backup Components 779 Device Backup Wizard 779 Backup Type Step 779 Specify Devices to Backup Step 781 Specify Telnet Login Information Step 781 Backup Identification Step 782 Scheduling Step 783 Summary Step and Progress 784 Device Backup Events 784 Device Backup Reports 785 Backup Summary Report 785 Backup Audit Report 786 Backup Files 786 Restore Components 787 Device Resto...

Страница 30: ...ted Device Parameters 806 Understanding Backup Files 807 Managing Backup Files 807 Key Considerations 808 How Backup Files are Discarded 808 Potential Hazards when using Restore and Setup 809 Why Errors can Occur during Restore and Setup 809 20 LIVE UPDATE Overview 811 Key Concepts 812 Connection Type 812 Service Packs 812 Live Update Engine 812 Components 813 Live Update Setup Wizard 813 Connecti...

Страница 31: ...roxy Server 831 Key Considerations 831 The Proxy Settings are not Retrieved 831 Not Enough Space on the Disk 832 Cannot Find the Downloaded 3Com Router Manager Updates on Disk 832 A SUPPORTED DEVICES Bulk Configuration 835 VLAN Configuration 836 Backup Restore and Setup 837 Restrictions Backing Up and Restoring 3Com Devices 838 Agent Update 841 Restrictions Updating 3Com Agent Software 842 RMON 84...

Страница 32: ...re 860 E REPORT EXAMPLES Overview 861 Discovery Report 862 Discovery Report Example 862 Discovery Report Example Content 863 Warnings 865 Network Configuration 1 866 Network Configuration 2 867 Misconfigurations and Optimizations Report 868 Inconsistent VLAN naming 869 Spanning Tree Fast Start 870 XRN Fabric 871 Setting up VLANS with Distributed Resilient Routing 871 Configure aggregated links usi...

Страница 33: ...F ADDING TRAP DECODES G ADDING MAC ADDRESS VENDOR TRANSLATIONS H INTEGRATING AN SSH CLIENT INDEX 3COM END USER SOFTWARE LICENSE AGREEMENT ...

Страница 34: ......

Страница 35: ...networks and network management systems If the Release Notes provided with this 3Com Network Director User Guide contain details that differ from the information in this guide follow the information in the release notes Most 3Com user guides are available in Adobe Acrobat Reader Portable Document Format PDF or HTML on the 3Com World Wide Web site http www 3com com ...

Страница 36: ...ample To change your password use the following syntax system password password In this example you must supply a password for password Commands The word command means that you must enter the command exactly as shown and then press Return or Enter Commands appear in bold Example To display port information enter the following command bridge port detail The words enter and type When you see the wor...

Страница 37: ...ude the following information when commenting Document title Part number Page number if appropriate Example 3Com Network Director User Guide Part No DUA1550 0AAA01 Page 21 Do not use this email address for technical support questions For information about contacting Technical Support please refer to Appendix A on page 855 Related Documentation In addition to this guide 3Com Network Director provid...

Страница 38: ...34 ABOUT THIS GUIDE ...

Страница 39: ...e devices on the network Backup and Restore 3Com device configurations Configure 3Com devices across the network in a single operation including VLANs and Traffic Prioritization Gather historical performance information for your network and generate flexible reports 3Com Network Director also provides Fault finding and event generating capabilities Element management for 3Com Switches and Routers ...

Страница 40: ... install 3Com Network Director insert the product CD in your computer s CDROM drive and browse the CD Double click the 3Com Network Director v1 0 exe file to begin the installation process Once the installation has started as shown in Figure 1 please follow the steps in the installation wizard Figure 1 InstallShield Wizard Activation Once you have installed 3Com Network Director you will have a 60...

Страница 41: ...e your activation key 3 Once you have your activation key enter it into the Activation Key text box and click Finish to complete the activation process For more information please refer to Product Activation on page 47 Getting Started This section details the operations you need to perform before you can start using 3Com Network Director with your 3Com devices When you first run 3Com Network Direc...

Страница 42: ...Director to monitor the status of your network after it has been discovered If you select No you can enable monitoring at any time after discovery is complete Community Strings Step You can enter any non default SNMP community strings used by your network devices 3Com Network Director needs to read SNMP information from your network devices in order to successfully create your network map 3Com Net...

Страница 43: ...rk Discovery Progress Dialog Box on page 128 The Network Discovery Summary dialog box is automatically displayed when the discovery process is complete Click OK to view your network map or any of the four View Report buttons for more information on the network discovery operation See Network Discovery Summary dialog box on page 130 for more information on the reports that 3Com Network Director gen...

Страница 44: ...t log will initially be empty Upgraded maps will not contain any support for new features in 3Com Network Director such as WAN support or updated support for 3Com network devices To avoid these problems it is strongly recommended that you rediscover your network using 3Com Network Director However if you want to use saved 3Com Network Supervisor maps please use the following steps to ensure maximu...

Страница 45: ...e Device Warranty feature If you have previously registered devices on your network for warranty using the Tools Device Warranty feature in 3Com Network Supervisor these devices will not be remembered by 3Com Network Director After discovering your network you will be prompted by 3Com Network Director to register every applicable device whether or not already registered with 3Com However any devic...

Страница 46: ...gise and map all devices in your network Using the Network Discovery wizard you can specify exactly which parts of your network you want to discover which types of device you want to discover and provide fine control over how 3Com Network Director discovers your local and remote subnets You can also set up a schedule to allow regular updates to your network map For more information see Discovering...

Страница 47: ...ts you can identify long term network trends For more information see Performance Reporting on page 385 RMON Support 3Com Network Director provides detailed flexible tools to allow you to view RMON information gathered from any supported 3Com device For more information see Rmon on page 403 VLAN Support 3Com Network Director can discover and represent all VLANs configured on your network You can u...

Страница 48: ...ve previously saved this configuration for the device If you have a number of devices with similar settings you can use the Setup Wizard to deploy selected setup configurations to those 3Com devices For more information see Backing Up Device Configurations on page 777 Agent Update Agent Update allows you to update software on your 3Com devices if you have a valid support contract Agent Update also...

Страница 49: ...lowing specific applications in order to obtain detailed control Telnet Management Web Management 3Com Device View 3Com Switch Manager 3Com Router Manager Network Jack Configuration 3Com Network Director also includes a feature called Device Warranty This feature enables you to register your 3Com devices for any applicable warranty For more information on the administration functions see Configuri...

Страница 50: ...46 CHAPTER 1 GETTING STARTED ...

Страница 51: ...to activate the product each time you launch it It is important that you activate 3Com Network Director this removes the evaluation period and allows you unrestricted access to the product Activation also starts the product s warranty period entitling you to customer support for 3Com Network Director for the duration of the warranty You can also decide to receive important update information relat...

Страница 52: ...tion site Type this key into the Activation Wizard to complete the activation process 3Com Network Director provides an Activation Wizard which guides you through the activation process Components The following section describes how to activate 3Com Network Director About Dialog 3Com Network Director s About dialog is used to display general information relating to the product such as the name pro...

Страница 53: ...product by clicking OK Once the product has been activated the Activate Now button will not be displayed Activation Wizard The Activation Wizard guides you through the activation process The Wizard can be launched either by clicking Activate Now on the About dialog or by clicking Help Activate Now from the top level menu Once 3Com Network Director is activated the Activation Wizard is no longer ne...

Страница 54: ...in Figure 4 Figure 4 Activation Wizard License Key 3Com Network Director checks that you have a valid license key before allowing you to continue If the license key is invalid a warning message is displayed and the wizard does not proceed to the next step 2 Obtaining the activation key the activation key step allows you to do two things Connect to the 3Com registration web site by clicking Get Act...

Страница 55: ...roduct number and license key for you Follow the instructions on the web site to complete the product registration process Once registration is complete the web site displays your activation key You will also be sent a copy of this key via e mail If you prefer you can register your product manually at http www 3com com register However 3Com recommends that you use the Activation Wizard Obtaining P...

Страница 56: ...tside US Canada and Latin America To obtain 12 months of software upgrades outside the US Canada or Latin America please order a 3Com Network Director Software Upgrade Package 3C15500S from your local 3Com reseller This is an easy to buy packaged service agreement that provides one year s access to software upgrades from the 3Com web site To activate the 3Com Network Director Software Upgrade Pack...

Страница 57: ...rk Director is found on the product s packaging and is also displayed in the About dialog To launch the About dialog select Help About 3Com Network Director from the menu on the main window Refer to Finding the Product Version on page 88 for more information The About dialog box will always show a product number of 3C15500 even if the product installed is an upgrade from 3Com Network Supervisor Ad...

Страница 58: ...ork Supervisor Advanced Package v2 0 to 3Com Network Director on a different workstation on page 55 Key Considerations The following section contains troubleshooting information when activating 3Com Network Director What if I lose my Activation Key after registration You can re register your copy of 3Com Network Director to obtain your activation key again You will also receive an e mail confirmat...

Страница 59: ... Director to another workstation above for more information Why can t I log in to the 3Com support web site If you experience difficulties logging in to the 3Com support web site please check your web browser settings to ensure that cookies are enabled You may also want to check with your system administrator that your site s firewall settings permit web site cookies I want to install my upgrade f...

Страница 60: ...mation dialog box you should get confirmation that the Advanced Package v2 0 functionality is now unlocked 8 Uninstall 3Com Network Supervisor v4 0 this will also uninstall the Advanced Package v2 0 9 Re install 3Com Network Director v1 0 10 Run 3Com Network Director and click on Activate Now in the About dialog box The Activation Wizard will launch 11 Enter the license key found inside the CD sle...

Страница 61: ...onality is now unlocked If the activation key is rejected this probably means that the workstation on which you installed 3Com Network Supervisor Advanced Package v2 0 is not the same as the one for which you originally obtained an activation key if that is the case please refer to I want to install my upgrade from 3Com Network Supervisor Advanced Package v2 0 to 3Com Network Director on a differe...

Страница 62: ... product number 3C15500U is rejected with the warning message Figure 6 License Key Warning The most likely reason for this is that the Advanced Package v2 0 was not unlocked on this workstation Follow the instructions below to resolve this issue 1 Uninstall 3Com Network Director 2 Re install 3Com Network Supervisor v4 0 and Advanced Package v2 0 3 Run 3Com Network Supervisor v4 0 and select the Ad...

Страница 63: ... on a different workstation on page 55 7 Uninstall 3Com Network Supervisor v4 0 this will also uninstall the Advanced Package v2 0 8 Re install 3Com Network Director v1 0 9 Run 3Com Network Director and click on Activate Now in the About dialog box The Activation Wizard will launch 10 Enter the license key found inside the CD sleeve of your 3Com Network Director software and click Next The license...

Страница 64: ...60 CHAPTER 2 PRODUCT ACTIVATION ...

Страница 65: ... chapter describes the 3Com Network Director main window The main window provides access to all of the features in 3Com Network Director This chapter covers the following topics Key Concepts Components Examples Key Considerations ...

Страница 66: ...ernally by 3Com Network Director While the presence of these files is not required to successfully load a map file previously logged event information will not be available if the former is not present and some user defined options may not be set if the latter is not present Two other types of files are saved alongside map files These files use the same name as the map file but have Events mdb and...

Страница 67: ... Hovering the mouse cursor over a button in the toolbar causes a tooltip for that button to be displayed The tooltip describes the operation associated with the button The operations provided by the toolbar buttons are equivalent to their corresponding menu items For more information see Main Menu on page 64 Status Bar The status bar provides detailed information about items within the map and tre...

Страница 68: ... associated operation invoked by selecting it File Table 3 lists each menu item for the File menu and the associated operation invoked by selecting it Table 3 File Menu Menu Item Hot Key Operation File New Ctrl N Creates a new empty map file and launches the Network Discovery wizard Prompts for a save if the current map has changed For more information see Saving and Opening Maps on page 206 File ...

Страница 69: ...ile List See Saving and Opening Maps on page 206 for more information File Lock Locks 3Com Network Director Prevents other users from accessing 3Com Network Director when you leave your workstation unattended with the application running For more information see File Lock Menu Option on page 73 File Exit Exits 3Com Network Director Prompts for a save if the current map has changed For more informa...

Страница 70: ... or MAC address and VLAN See Finding Items on Your Network on page 192 for more information Edit Select All Ctrl A Selects all map items in the currently viewed submap See Selecting Items in the Map and Tree on page 180 for more information Edit Select All Core Devices Selects all core infrastructure devices in the map See Selecting Items in the Map and Tree on page 180 for more information Menu I...

Страница 71: ...or more information View Labels Custom Name Selects the display of the Custom Name label for map items in the tree and map See Map Item Labels and Address Translation on page 175 for more information View Labels User Name Selects the display of the User Name label for map items in the tree and map See Map Item Labels and Address Translation on page 175 for more information View Labels DNS Name Sel...

Страница 72: ...w Background Image Show Background Images Toggles whether background images are displayed or not for all submaps See Background Images on page 210 for more information View Relayout Map Performs an automatic relayout of the map items in the currently viewed submap See Automatic Relayout of Maps on page 201 for more information View Go Up Ctrl Up Navigates to the parent submap of the currently visi...

Страница 73: ...ion 3Com Switch Manager Launches 3Com Switch Manager for the selected switch See 3Com Switch Manager on page 475 for more information Device Administration 3Com Router Manager Launches 3Com Router Manager for the selected router See 3Com Router Manager on page 475 for more information Device Administration 3Com Device View Launches 3Com Device View for the selected device See 3Com Device View on p...

Страница 74: ...rmation Device Configure Switch Ports Launches the Configure Switch Ports wizard for the selected devices See See Bulk Configuration on page 61 for more information Device VLAN Create a VLAN Launches the Create VLAN wizard for the selected devices and links See Create VLAN wizard on page 537 for more information Device VLAN Edit Port VLAN Membership Launches the Edit Port VLAN Membership wizard fo...

Страница 75: ... more information Monitoring Live Graphs Launches the Live Graphs window for the selected item See Live Graphs Menu on page 285 for more information Monitoring Historical Report Launches a historical report for the selected item See Performance Reporting on page 385 for more information Menu Item Hot Key Operation Menu Item Hot Key Operation Alerts Events Attach Alerts Launches the Attach Alerts d...

Страница 76: ...View dialog box for the selected item See Viewing data from the RMON Matrix group on page 440 for more information RMON Manage RMON Tables Launches the Manage RMON Tables dialog box for the selected item See Managing RMON tables on page 447 for more information Menu Item Hot Key Operation Tools Reports Launches the Reports dialog box See Reports Dialog Box on page 458 for more information Tools Ne...

Страница 77: ...ormation Tools Live Update Launches the Live Update wizard See Live Update Setup Wizard on page 813 for more information Tools Device Warranty Ctrl W Launches the Device Warranty wizard See Device Warranty Wizard on page 484 for more information Tools Options Launches the Options dialog box See Tools Options Menu Option on page 76 for more information Menu Item Hot Key Operation Menu Item Hot Key ...

Страница 78: ...on This operation closes 3Com Network Director The following message will be displayed if there are outstanding changes to the map that need to be saved Figure 8 Exit Before Save Dialog Box Any scheduled tasks present in the Scheduled Tasks list are cancelled when the application closes View Show Toolbar Menu Option This menu item toggles between a visible or hidden toolbar If you find you do not ...

Страница 79: ... run at a given time If two or more tasks are set to run at the same time the first task is executed and all others enter a pending state where the Start Time column displays Pending The pending task is executed immediately after the currently scheduled task finishes A scheduled task also enters the pending state if it is scheduled to start but cannot for some reason For example if a manual Networ...

Страница 80: ...e choice of Queuing the new task to run after the current task finishes Canceling the current task allowing the new task to run immediately Canceling the new task allowing the current task to finish For scheduled tasks to execute 3Com Network Director must be running On exiting the application all currently scheduled tasks are cancelled Tools Options Menu Option This menu item launches the Options...

Страница 81: ...k Director Any option set in the Options dialog box applies to all maps opened within 3Com Network Director not just the map that was open when the option was set All options are automatically saved and are retained for future use in 3Com Network Director General This tab as shown in Figure 10 displays the following Default File Location change the default location where map files are saved to a d...

Страница 82: ...AC Addresses on page 177 for more information Show the Live Update Setup Wizard next time this option is enabled by default See Live Update Setup Wizard on page 813 for more information Show the Device Warranty dialog box after a refresh operation this is enabled by default See Device Warranty Dialog Box on page 483 for more information Device Management This tab allows you to change the managemen...

Страница 83: ...ment which is the default Telnet Management or Administration Application If a device does not support the preferred Web Management application Telnet is launched instead For further information on the Device Management options see Configuring Single Devices on page 473 ...

Страница 84: ...re 12 Internet Tab Direct connection to the Internet use this option if your management station connects to the Internet directly through a Local Area Network without using a proxy server Custom proxy settings specify the address of the proxy server followed by the proxy port number If your proxy server requires authentication click the My proxy server requires authentication checkbox and enter th...

Страница 85: ... every day weekday or week It also allows you to select the types of devices to discover during Network Discoveries For further information on the Discovery tab see Scheduled Discovery Pane on page 124 Figure 13 Discovery Tab Monitoring This tab allows you to select the default global monitoring options that 3Com Network Director applies to devices in the network as shown in Figure 14 ...

Страница 86: ...is enabled for a map item 3Com Network Director can maintain a record of the previously monitored values for that map item so that it may display a graph for the monitor You may choose to fully disable the history for monitors or may change the period of time for which 3Com Network Director maintains history 3Com Network Director maintains a 10 minute monitor history by default See Configuring the...

Страница 87: ...for events or may change the period of time for which 3Com Network Director stores the history 3Com Network Director stores a 10 minute history before and after events by default See Configuring the Storage of Monitoring History for Events on page 360 for more information Historical Reports 3Com Network Director can log monitored data for all monitors and then use this data later to construct hist...

Страница 88: ...hether to include devices in a VLAN based only upon their configuration or based upon the network topology as well Devices are included in VLANs based upon both their configuration and the network topology by default For further information on the VLANs tab see Options Dialog Box on page 521 Retry Timeout This tab as shown in Figure 17 allows you to set the default number of retries and the timeou...

Страница 89: ...twork on page 681 Security This tab as shown in Figure 18 allows you to specify whether 3Com Network Director should request a password when the application is launched Enabling password protection for 3Com Network Director additionally allows you to lock the application when you leave your workstation unattended with the application running ...

Страница 90: ...using the password field If you forget or lose the password after enabling this option then you will need to reinstall the application This option is disabled by default Password The application password The password can contain any combination of letters numerals spaces and symbols and it can be up to 8 characters long The password you enter into this field is masked by asterisk characters Confir...

Страница 91: ...ector user interface however the following windows are not locked by 3Com Network Director and should be closed before you leave the workstation unattended Device View Switch Manager Router Manager Network Jack Configuration RMON View Help Contents and Index Menu Option This launches the Contents and Index pages of the online help The 3Com Network Director online help system is a browser based hel...

Страница 92: ... service packs installed are also listed Examples Finding the Product Version You have a query about an aspect of 3Com Network Director functionality and want to contact 3Com support The support engineer asks you for your 3Com Network Director product version 1 Launch the About dialog box using Help About 3Com Network Director Figure 20 About Dialog Box 2 The product version number and service pac...

Страница 93: ...ou have a query about an aspect of 3Com Network Director functionality and contact 3Com support The support engineer asks you for your 3Com Network Director serial number license Number and activation key 1 Launch the About dialog box using Help About 3Com Network Director 2 The serial number is located on the third line of the dialog box ...

Страница 94: ...t yet entered the license number and activation key then the About dialog box will not display them but will instead show the remaining evaluation period Key Considerations The following section provides useful information and advice on the Main Window Scheduled Tasks When 3Com Network Director is closed all currently scheduled tasks are cancelled When the application runs again the tasks will hav...

Страница 95: ...ct it to perform a network discovery This chapter explains the discovery process and how to tailor it to work best on your network It also describes any problems you may encounter with the discovery process and the steps you can take to overcome them This chapter covers the following topics Key Concepts Components Components Examples Useful Information and References Discovery Report Errors and Wa...

Страница 96: ...formation about a network it already knows about How scheduled discoveries work The Discovery Process Detecting Devices This operation determines which devices exist on one or more IP subnets It also finds out more about each discovered device such as its type and capabilities The operation is initiated with a list of subnets to discover Within each subnet 3Com Network Director attempts to locate ...

Страница 97: ... determine if a device supports certain network protocols Specifically these are SNMP HTTP Telnet The most detailed information is generally obtained from devices that support SNMP For these devices 3Com Network Director initially starts the communication using the read community string as originally specified in the Network Discovery wizard Having successfully communicated using the read communit...

Страница 98: ... the sizing stage If a router is detected when discovering a given subnet that router information will be made available to any subsequent subnets included as part of the whole discovery operation This ensures that the router is not interrogated more than once for the same information by several stages IP to MAC Resolution This stage is responsible for obtaining the MAC addresses of non SNMP nodes...

Страница 99: ...upporting SNMP 3Com Network Director looks for this tag in order to recognize the device DNS Name Resolution During this stage 3Com Network Director attempts to retrieve a DNS name for each IP address that has been detected 3Com Network Director uses information from the Windows registry in order to establish potential DNS servers that exist It then communicates with them directly making DNS queri...

Страница 100: ...nd software version the number and type of ports on each unit or module and their link status the VLANs configured on the device This stage is executed once only when all the other stages have been run on all of the desired subnets The reason for this is that during the other discovery stages some IP addresses may have been discovered as separate devices but it is desirable for 3Com Network Direct...

Страница 101: ...ces representing the physically connectivity In reality each subnet multinet may not physically appear to be a tree for instance if spanning tree is used to employ resilient paths The algorithm used to deduce the topology takes such scenarios into consideration Before the tree building process can take place 3Com Network Director needs to obtain the list of learned addresses for each switch In pra...

Страница 102: ...enerally provided by standard bridge MIBs This is an extension of the Device Sizing stage but the information obtained is only required for topology The ports participating in such links are eliminated from the remainder of the topology process until the tree building stage Remote Poll Stage broadcast ARP The purpose of this stage is to attempt to force each switch to learn the addresses of other ...

Страница 103: ...tches which are outside the ranges of your endstations Consequently the depiction of MAC only nodes may not be required You can prevent MAC only nodes from being added to your map by selecting the Only core devices or Only IP devices in the Discovery Options pane of the Network Discovery Wizard See Discovery Options Pane on page 122 for more information Device Resolution Stage During this stage 3C...

Страница 104: ...Director analyzes all the information it has obtained from the previous stages It builds a tree view of the subnet multinet placing end station devices appropriately It also adds back in any blocked spanning tree links Clouds Unknown Topology When 3Com Network Director builds the network tree there may be certain parts where it is unable to exactly determine the network topology In such cases you ...

Страница 105: ...n this case the cloud is where the unmanaged hub should be A similar situation can also occur when insufficient topology information has been obtained from one or more switches possibly because 3Com Network Director lost communication with that switch during the topology process If the problem device were an edge switch that is actually connected to many end stations 3Com Network Director would sh...

Страница 106: ...above it is clear that the bottom switch is at fault If information was available the problem switch would be positioned where the cloud is and the cloud would not be shown The above situation occurs because the switch to the left of the diagram has learned the addresses of all the end stations and also the bottom switch However because 3Com Network Director lost communication with the bottom swit...

Страница 107: ...Hover the mouse over the links to each of the Switches If one of them shows no unit or port details it is likely that this switch should have been positioned where the cloud is If all the switches give unit and port details it is likely that there is another device that should be positioned where the cloud is but that was not detected by 3Com Network Director Other Clouds Sometimes 3Com Network Di...

Страница 108: ...existing subnets or some of the existing devices have changed configuration Many of the administrative tools such as Device Backup Restore and Agent Update rely on the device configuration information held by 3Com Network Director in its map database being up to date Consequently it is a good idea to perform a rediscovery on subnets where you know some of the devices have changed When you perform ...

Страница 109: ... initially has address x device B has address y On a subsequent discovery device A now has both addresses x and y In this scenario device A s information will be updated to reflect its new addresses and device B will be deleted Any new links that is connections between devices and or device s ports detected by the topology process will be added to the relevant devices on the map If a port previous...

Страница 110: ...overy This setting is global and applies to any open map no matter how the map was initially discovered Also the setting applies to the whole of the currently open map you cannot specify a scheduled rediscovery of selected subnets See Scheduled Discovery Pane on page 124 Components The following section describes the features of the discovery tool and how you can use them to tailor the discovery p...

Страница 111: ...tered 3Com Network Director and it is still in the evaluation period the first dialog box you see when launching the application is the About dialog box Closing this takes you to the Welcome dialog box When you select the Create a new network map option and click OK the Network Discovery wizard is launched File New From the main menu when you select the New option from the File menu the Network Di...

Страница 112: ... in the list on this pane Figure 27 Specify Subnets Pane The subnet mask and range information are also filled out You can modify the range information by selecting the appropriate subnet in the list and clicking Edit If you choose not to modify the range information then the discovery operation will include all ranges that have currently been added to that subnet If you do modify the range then o...

Страница 113: ... the list and clicking the Edit button As with selecting discovered subnets if you select an undiscovered subnet in the tree or the map the right click menu contains the Network Discovery option Selecting this has the same effect as selecting Network Discovery from the tools menu You can also launch the Network Discovery wizard for an undiscovered subnet by double clicking on its icon in the map o...

Страница 114: ... 117 This means that you cannot specify IP ranges when using this option If you wish to specify ranges for the local subnet discovery you will need to use the Specify Subnets option and add the details of the local subnet to the list of subnets to discover LAN subnets connected to the default router or gateway Select this radio button and click Next to discover all devices on the local subnet to w...

Страница 115: ...If you select one or more subnets in the tree or map view prior to launching the Network Discovery wizard then you will be immediately taken to this step with the details of the subnets you selected added to the list box Once you are happy with the list of subnets you have configured in the list in the Specify Subnets pane of the wizard and with the address ranges and retry timeout values associat...

Страница 116: ...Directorwill detect for your specified subnet you must first select the Discover custom ranges radio button and the ranges table and Add button will become enabled The Discover full range and Discover custom ranges radio buttons are only enabled if you have entered a valid Address and Mask pair The ranges table lists the ranges of IP addresses that 3Com Network Director will detect for your specif...

Страница 117: ... from the map but simply removes them from the list of ranges to rediscover when the Network Discovery is started The ranges will remain in the map but will be unchanged by the Network Discovery process See Deleting Items from the Map on page 204 for details of how to remove devices permanently from the map The Retry Timeout information section of this dialog box allows you to control how long 3Co...

Страница 118: ...ill display the same dialog box as for adding subnets described above with each of the fields completed with the information you originally supplied Modify the fields as necessary and select OK to return to the wizard 3Com Network Director will not allow you to modify the subnet if it conflicts with another one in the list Removing subnets from the list Select a subnet and click Remove to remove a...

Страница 119: ...alues as normal 3Com Network Director communicates with the routers on your local subnet in order to populate the above dialog box It uses SNMP to communicate with the routers and consequently requires their read community strings in order to query them By default it uses public If that is not the correct read community for any of the routers the query will fail and the following dialog box displa...

Страница 120: ...et is specified by its subnet IP address followed by its subnet mask Each subnet can also optionally have an IP address range specified for it by appending the first and last IP addresses in the range to the end of the subnet line This indicates the range of IP addresses to discover on the subnet Multiple ranges can be specified for a subnet by listing the subnet multiple times within the file wit...

Страница 121: ...th subnets already present in the subnets list then those subnets will not be imported and a list of rejected subnets will be displayed Similarly if you file contains two or more subnets that overlap with each other but that do not overlap with subnets already present in the subnets list then only the first of these subnets will be imported and the remainder will be rejected Monitor Core Devices a...

Страница 122: ...le monitoring on selected devices from the updated map When 3Com Network Director is not operating in automatic monitoring mode the dialog allows you more advanced control over the monitoring of the discovered subnets See Controlling Monitoring Type and Polling Rates on page 296 for a full explanation of automatic monitoring mode other monitoring modes and the full operation of this pane Community...

Страница 123: ...en attempt to use the community strings you provide in this pane of the wizard 3 Finally it will attempt the default community strings The default read community for all devices is public and the default write community string depends upon the device type If 3Com Network Director successfully establishes the read community string then it will be able to deduce the type of device and consequently k...

Страница 124: ...ard asks you to indicate whether you have a NBX voice system on your network or specifically on the subnets you are about to discover Figure 37 NBX Voice Network Pane By choosing Yes the next step of the wizard will ask you for username and password details By specifying No this step of the wizard will be bypassed NBX Call Processors Pane This step of the wizard will only be shown if you selected ...

Страница 125: ...ry defaults selected and click Next to move to the next step of the wizard If you only have one NCP on your subnet s or you have modified all NCP devices to use the same username and password specify the values by selecting the Custom option and entering the Username and Password into the fields on this pane If you have multiple NCP devices and have modified them to use different usernames and pas...

Страница 126: ...ices of interest to you To ensure you do not reach the 3Com Network Director node limit during discovery If you leave the Use defaults from Tools Options dialog option checked then the settings will be retrieved from the Tools Options dialog box Discovery tab See Options Dialog Box Discovery Tab on page 125 for a description of this tab By unchecking this option you can select one of the options a...

Страница 127: ...cted during discovery and topology being added to the map Rediscovery operations never result in devices being removed from an existing map unless two nodes have been merged into one If you have a subnet which contains MAC only devices and rediscover it with Only core devices selected then only core devices will be rediscovered but any existing non core devices in the subnet will remain in the sub...

Страница 128: ...nge the discovery options for a subnet without re running the Network Discovery wizard for that subnet select the subnet in the map select the Device Properties menu option to launch the Properties dialog box for the subnet and then change the settings in the Discovery options tab Scheduled Discovery Pane This step of the wizard enables you to schedule the discovery process to be re run on a regul...

Страница 129: ...log box are as follows Never Select this option to schedule no future discoveries Note that if there is currently a pending scheduled discovery and you choose this option the pending discovery will be cancelled Every X hours Select this option to schedule a discovery to be run every few hours You can specify a gap of 1 to 24 hours between each discovery in this option ...

Страница 130: ...iscovery is started The options associated with those subnets such as IP ranges timeouts etc will be used again When a scheduled discovery is started the Discovery Progress dialog box is shown in its minimized state See The Network Discovery Progress Dialog Box on page 128 for more detail Once a discovery has been scheduled an entry for it will appear in the Scheduled Tasks dialog box This shows t...

Страница 131: ...r attempts to start the discovery process using the options you have specified If there is a conflicting task currently running the standard Task In Progress dialog box will be displayed giving you the option of Allowing the current task to run to completion Cancel the current task and start the discovery Discard the discovery request completely ...

Страница 132: ...k Discovery Progress Dialog Box The Network Discovery Progress dialog box is displayed while the discovery process is running The process starts when you click Finish on the Network Discovery wizard or when a scheduled discovery is started Figure 44 Network Discovery Progress Dialog Box ...

Страница 133: ...vering each subnet This will reset each time the discovery process moves onto a new subnet The lower of these indicates progress on the current discovery stage This will reset each time the discovery process moves onto a new stage within the current subnet After completing discovery of all specified subnets this progress bar is used to indicate progress of the sizing stage The table in the center ...

Страница 134: ...twork Discovery Summary Dialog Box If a scheduled discovery completes when the progress dialog box is in its minimized form then instead of the summary dialog box being displayed the refresh toolbar button becomes enabled Figure 47 Refresh Toolbar Button Click this button to display the Summary dialog box The summary dialog box provides you with the following information Discovery problems This sh...

Страница 135: ...s and Optimizations report using the View Report button to find out what the suggestions are Note that this button will be disabled if there are no suggested optimizations Also note that this analysis is performed against the whole updated map not just the parts that were discovered in the recently completed discovery Network Changes This entry will only be displayed on the dialog box for a redisc...

Страница 136: ...ms apply For instance it may have lost communication with a device when reading the bridge FDB tables Each of the problems listed within the report has a severity level associated with it either Warning or Error For instance failing to determine the write community string is considered a warning since although it is required for other areas of 3Com Network Director it is not essential for discover...

Страница 137: ...to avoid large reports being generated on networks using DHCP For a similar reason the Changes report will not produce information on devices that appear between network discoveries as users log in and log out due to the Network Login support See Network Login on page 227 Also see Report Examples on page 861 for a full list of the changes that may be detected The Displayed Map After a discovery op...

Страница 138: ... the view by selecting View Relayout Map Examples This section provides examples of how you may use the Network Discovery features of 3Com Network Director to accurately discover the areas of your network you are interested in How do I discover my network every day at midnight You may wish to perform a discovery when the network is not under heavy load or when it is most stable such as at midnight...

Страница 139: ... pm drop down list Ensure that the day option is selected in the every drop down list 12 00 am is midnight and 12 00 pm is midday 5 Commit your scheduled discovery by clicking OK If you now launch the Scheduled Tasks dialog box from the Tools Scheduled Tasks menu option you will see your new scheduled discovery listed ...

Страница 140: ...Wizard If you haven t yet populated your map with the subnets you wish to regularly rediscover the easiest way is to setup the schedule at the same time you perform your initial discovery 1 Launch the Network Discovery wizard e g by selecting Tools Network Discovery 2 Step through the wizard as you would normally ensuring you enter the subnets you wish to be discovered and consequently rediscovere...

Страница 141: ...eing very busy at the time you perform this discovery this should not be too much of an issue Assuming the discovery is able to detect all the relevant subnets during the first discovery any missing devices should be discovered during the scheduled discovery at the quieter time I have four separate subnets how do I specify them While 3Com Network Director is capable of automatically discovering yo...

Страница 142: ...g the Next button Once you click Finish on the wizard 3Com Network Director will start discovering your subnets One of my subnets is over a slow WAN link can I discover it and if so what settings should I use If you wish to discover a remote subnet over a slow link you may need to increase the time that 3Com Network Director waits for responses from your network The need to do this will become app...

Страница 143: ...n the wizard 3Com Network Director will start discovering your remote subnet If you find that the discovery completes successfully with no communication loss you may wish to try reducing the timeout values in the future I am using different SNMP community strings for different devices on my network how do I specify this 3Com recommends that you change the community strings on your network devices ...

Страница 144: ...h to change any of the remaining defaults Alternatively continue through the wizard using the Next button Once you click Finish 3Com Network Director will discover the devices on your network using any default community strings and also attempting to use the ones you specified in the wizard Useful Information and References Why the discovered map may not exactly reflect the network This section co...

Страница 145: ...e stack to another if the unit has been assigned an IP address then that address will move with it If you do not want the address to move you should delete the IP address from the unit when you transfer it Some devices are the wrong type SNMP capable devices can appear as generic IP icons on the map if the wrong read community string was specified for the device or if SNMP requests to the device t...

Страница 146: ...ly just their type The topology process simply treats non SNMP devices as endstations However this is unusual since most Web managed devices are not switches or routers 3Com Network Director uses specific images and text for the different families of 3Com devices that are displayed on the map and also uses different border types depending upon the device s capabilities See The Map on page 152 Supp...

Страница 147: ...stations such as Unix workstations Key Considerations Discovering over slow expensive links If you are discovering a remote subnet over a slow link you may find that 3Com Network Director encounters many timeouts when communicating with the remote devices Also you may find that the traffic generated by 3Com Network Director is consuming a significant amount of the bandwidth thus impacting other us...

Страница 148: ...ices phase of discovery are listed below along with their potential causes This subnet can contain more devices than 3Com Network Director currently allows during discovery and will therefore not be discovered Subnets that can contain more than 65535 devices can take an extremely long time to discover Therefore 3Com Network Director ignores these subnets during all discovery operations This messag...

Страница 149: ...ection on page 93 for further information 3Com Network Director only attempts to do this for devices that it thinks it will need write access to in the future e g to set up the trap table for monitoring for use by administrative tools such as Agent Update If all attempts to validate the write community strings fail then this message is logged Multiple responses were detected during discovery from ...

Страница 150: ...ually occur at various points of the discovery process including the sizing stage of detecting devices phase but the error is only logged once for each faulty device The device s must have responded at some point for this error to be logged If the problem appears to occur multiple times on a specific subnet try increasing the timeout retry values for that subnet in the Network Discovery wizard Alt...

Страница 151: ...e 3Com web site for 3Com Network Director service packs which will support the latest version The following devices have been configured into multiple segments This is a feature of the Port Switch Hub families of the devices which allow the separation of groups of ports into segments 3Com Network Director does not fully support these configurations and cannot guarantee that will the deduced topolo...

Страница 152: ...accurate topology detection At a certain point in the topology process 3Com Network Director may decide to instruct one device to remote ping another See Remote Poll Stage broadcast ARP on page 98 and Remote Poll Stage directed pings on page 99 It cannot do this if it was previously unable to determine the write community string for this device consequently you should also see a warning relating t...

Страница 153: ... this occurs during Network Discovery then 3Com Network Director may not be able to depict the topology of the network accurately It is usually possible to address this issue by rediscovering the subnet or subnets of the devices in question The following devices have a device performing ARP proxies for them If you have a 3Com SuperStack 3 Firewall in your network that is operating in transparent m...

Страница 154: ...for that item This situation can arise on some third party devices that do not provide a suitable speed via their MIBs It may also occur if 3Com Network Director lost communication with the device during Network Discovery in which case additional errors should appear in this report to indicate the loss of communication You can set the speeds for both directions of a WAN link from the General tab o...

Страница 155: ...ng and managing your network They enable you to choose how you want to view your network show the current health of monitored devices and links within your network and act as a launching point for many of the tools available within 3Com Network Director The following topics are covered in this chapter Key Concepts Components Examples Useful Information and References ...

Страница 156: ...twork Director main window It presents a graphical representation of your network topology for the devices discovered on the network Figure 52 The Map The graphical representation consists of icons that represent devices subnets and other network components The lines drawn between those icons represent connections between the components The following table describes each of the set of icons used i...

Страница 157: ...f an XRN Switching Fabric are grouped together into a single XRN Fabric icon in the map A square represents any other discovered device on the network This includes end stations servers and NBX phones It also includes devices that could not be discovered fully for example when 3Com Network Director cannot determine an IP address for a device or when the appropriate SNMP community strings are not s...

Страница 158: ...s of a WAN link to indicate the type of the WAN link and to allow you to apply operations independently to each end of the WAN link They are used to show the number of clients connected to each wireless access point A circle represents a subnet within your network The label in the center of the circle indicates the address of the subnet being represented If the subnet has not yet been discovered t...

Страница 159: ... or device group click the symbol next to its name Each device appears only once in the tree Routers and layer 3 switches appear at the top level of the tree Other devices appear within their appropriate subnet or device group The tree also shows subnets that have not yet been discovered These are indicated by the text Undiscovered appended onto the end of the subnet name ...

Страница 160: ...l devices Within each view you can navigate around the map and focus on particular areas of the topology that are of interest to you To change from one view to another toggle View Group Map by Subnet The Grouped Network View The default view shows the devices in your network logically grouped by IP subnet This view is hierarchical consisting of The top level map This map presents a logical layer 3...

Страница 161: ...Components 157 Figure 54 Subnet Example Device groups allow you to manually group together similar devices to allow you to represent your network more intuitively Figure 55 Device Groups Example ...

Страница 162: ...in the top level map The device groups in your network Any device groups within your network are expanded within this view so that the devices they contain are shown in the top level map Devices Each icon on the map represents a device on your network that has been discovered by 3Com Network Director through use of the Network Discovery wizard or has been added to the map manually For more informa...

Страница 163: ...evice 3Com SuperStack 3 family device 3Com SuperStack 3 family Power over Ethernet device 3Com SuperStack II family device 3Com Switch 7700 3Com Switch 4007R 3Com Switch 4005 Other 3Com chassis devices such as the 3Com Switch 4007 3Com Network Jack 3Com OfficeConnect family device 3Com AirConnect Access Point ...

Страница 164: ...etworked Telephony Solution Icons 3Com Wireless LAN Access Point All other network infrastructure devices Telephony Solution Icon Description NBX network call processor NBX line card IP telephone Analogue telephone Fax machine Device Icon Description ...

Страница 165: ...orkstation Printer Print server Menu Item Operation Start Monitoring Starts the monitoring of the selected map items and links by 3Com Network Director See Starting and Stopping Monitoring on page 293 for more information Stop Monitoring Stops the monitoring of the selected map items and links by 3Com Network Director See Starting and Stopping Monitoring on page 293 for more information What s Wro...

Страница 166: ...RMON Host Launches the Host View dialog box for the selected device See Viewing data from the RMON Host group on page 431 for more information RMON Matrix Launches the Matrix View dialog box for the selected device See Viewing data from the RMON Matrix group on page 440 for more information RMON Manage RMON Tables Launches the Manage RMON Tables dialog box for the selected device See Managing RMON...

Страница 167: ... the Restore wizard for the selected device See Device Restore Wizard on page 787 for more information Prioritize Network Traffic Launches the Prioritize Network Traffic wizard for the selected devices See Prioritize Network Traffic Wizard on page 631 for more information VLAN Create a VLAN Launches the Create VLAN wizard for the selected devices and links See Create VLAN wizard on page 537 for mo...

Страница 168: ...ormation Linking Items in the Map on page 204 Unvalidated links are represented in the map by a dashed line as shown below Figure 56 Unvalidated Links Physical Link Annotations Physical links can be annotated to graphically indicate their attributes For more information about how to enable and disable the display of annotations see View on page 66 The annotations are displayed at both ends of a ph...

Страница 169: ...rt of a resilient link pair Spanning Tree State Spanning Tree Protocol has disabled the link Menu Item Operation Start Monitoring Starts the monitoring of the selected items by 3Com Network Director See Starting and Stopping Monitoring on page 293 for more information Stop Monitoring Stops the monitoring of the selected items by 3Com Network Director See Starting and Stopping Monitoring on page 29...

Страница 170: ...from the RMON Statistics group on page 417 for more information RMON History Launches the History View dialog box for the selected link See Viewing data from the RMON History group on page 423 for more information RMON Host See Viewing data from the RMON Host group on page 431 for more information RMON Matrix Launches the Matrix View dialog box for the selected link See Viewing data from the RMON ...

Страница 171: ...e following table describes each of the menu items in the pop up Table 19 Layer 3 Connections Menu Options Clouds Clouds can be used for several reasons within the map They may be used to represent sections of the network where the topology is uncertain This can occur automatically as a result of a Menu Item Operation Properties Launches the Properties dialog box for the selected map items and lin...

Страница 172: ...r of the cloud indicates the family type of the links that are connected to the cloud The family type of a link to the cloud is based upon the type of the interface that the other end of the link is connected to For example Gigabit Ethernet Fast Ethernet and 10 Mbps Ethernet interfaces all belong to the Ethernet family It is not necessary for all of the links connected to a cloud to belong to the ...

Страница 173: ...page 204 Pull Right Menu for Clouds Right clicking on a cloud in the map produces a pop up menu The following table describes each of the menu items in the pop up Table 21 Clouds Menu Options Subnets Subnet icons represent submaps that contain devices in the same IP subnet or subnets A device is considered to be part of an IP subnet if it has at least one IP address which is contained in the subne...

Страница 174: ...covers a device that has an IP interface on a subnet that 3Com Network Director has not recognized then an undiscovered subnet icon will be added to the top level map and linked to the device Undiscovered subnet icons represent areas of the network that have not yet been discovered by 3Com Network Director and give you a convenient way to visualize and progressively map your entire network Double ...

Страница 175: ...to the front an unfiltered instance of the Events window filtered to show events for the selected items only See Events List Components on page 326 for more information Network Discovery Launches the Network Discovery wizard for the selected subnets See The Network Discovery Wizard on page 109 for more information Agent Update Launches the Agent Update wizard for the selected devices See Agent Upd...

Страница 176: ...cted devices will be replaced in the currently viewed submap by a Device Group icon that represents a new device group Similarly the selected devices will be replaced in the tree by a new branch within the currently viewed submap s branch that contains the selected devices Clouds will appear in a device group s submap according to the rules given in Clouds and Submaps on page 168 Device groups can...

Страница 177: ...lected items See Attach Alerts Dialog Box on page 364 for more information View Filtered Events Launches or brings to the front an unfiltered instance of the Events window filtered to show events for the selected items only See Events List Components on page 326 for more information Agent Update Launches the Agent Update wizard for the selected devices See Agent Update Wizard on page 665 for more ...

Страница 178: ...ointer over the appropriate item for a short period of time after which a tooltip for the item in question will appear Figure 59 A Tooltip The information displayed within the tooltip depends upon the type of item you hold the mouse point over For links and layer 3 connections the information displayed depends upon which end of the link you hold the mouse pointer over The information displayed for...

Страница 179: ...d to the half of the link you are holding the mouse pointer over including The current label of the map item as specified by View Labels The unit and port or ifIndex of the interface that the link is connected to on the map item if applicable The duplex mode of the interface that the link is connected to on the map item if applicable The resilience mode of the interface that the link is connected ...

Страница 180: ... PC that 3Com Network Director is running on This resolution is performed during discovery For more information about DNS resolution during discovery see DNS Name Resolution on page 95 Map items other than devices do not have a DNS Name label System Name For devices this is the System Name that the device is configured with For clouds this is a name automatically assigned by 3Com Network Director ...

Страница 181: ... Unique Identifier OUI the company_id or the vendor ID and can be used to identify the device s manufacturer The second half is a unique ID provided by the device s manufacturer 3Com Network Director can automatically determine the manufacturer of each device on the network that has a MAC address by translating the OUI portion of the MAC address from its hexadecimal representation to the manufactu...

Страница 182: ...gure 61 MAC Address label display 2 By default the automatic translation of the OUI of MAC addresses is turned off To toggle this feature on or off launch the Tools Options dialog box and from the General tab set the Translate MACs option ...

Страница 183: ...ork Director uses a list of fixed mappings from OUI to vendor name to perform this translation As new OUI values are assigned to vendors on a regular basis it is possible that 3Com Network Director will not have a mapping for a particular device in your network In such a case 3Com Network Director will simply display the full MAC address For more information about how you can extend this list your...

Страница 184: ...to selecting individual items it is possible to select all of the map items in the current submap by selecting Edit Select All and to select all of the core network infrastructure devices in all of the submaps by selecting Edit Select All Core Devices Selecting Multiple Map Items in the Currently Viewed Map A set of map items that are next to each other in the currently viewed map can be selected ...

Страница 185: ... selecting the first item that you want to include in the selection pressing and holding Shift then single clicking on the last item that you want to include in the selection This method of selection changes the selection so that it includes only those map items between the two items that you selected If you had selected any other map items prior to selecting items in the tree in the same way then...

Страница 186: ...ng this option will clear any current selection and select all of the phones related to that NCP Navigation 3Com Network Director provides various navigation facilities to enable you to focus in on particular areas of your network topology that are of interest to you These facilities include panning zooming in and out of the map and when you are viewing the devices in your network grouped by subne...

Страница 187: ...The following buttons in the toolbar can be used to perform these actions Table 26 Toolbar Zoom Buttons In addition to these methods of zooming in and out of the map 3Com Network Director provides a method for directly selecting the area of the map that you wish to view This is similar to the selection rectangle described in Selecting Multiple Map Items in the Currently Viewed Map on page 180 in t...

Страница 188: ... top level map or any one submap at any given time This means that in order to view the contents of a submap that is not currently being viewed it is necessary to navigate to it The simplest method of navigating between different submaps or between submaps and the top level map is via the use of two controls Go Up Navigates up one level in the hierarchy of submaps to show the current submap s pare...

Страница 189: ...p associated with such an icon is equivalent to navigating sideways in the submap hierarchy If you navigate to a subnet s submap in this way and then navigate up you will arrive at the top level map not at your original submap The title bar for 3Com Network Director indicates which submap you are currently viewing by listing details at the end of the title The details shown depends upon the submap...

Страница 190: ... that the device belongs to displays in parentheses after the device s label Menu Item Operation Zoom in Zooms in towards the map centering the current selection in the display if applicable See Navigation on page 182 for more information Zoom out Zooms out from the map See Navigation on page 182 for more information Fit to page Centers the map on the display and zooms in or out as necessary so th...

Страница 191: ...eturn to your original submap Where the device that a shortcut represents exists on more than one submap 3Com Network Director selects one of these for the shortcut to link to This is the submap represented by the text in parentheses shown after the shortcut label Navigating Around the Map Using the Tree As well as using the map for map navigation you can also use the tree for map navigation To na...

Страница 192: ... Tools Trace Paths option allows you to find the physical paths between any two devices on your network and highlight them in the map You can launch Trace Path in two ways Select the two devices that you want to find the physical paths for on the map and then select Tools Trace Path Select Tools Trace Path without first selecting the two devices that you want to find the physical paths for This la...

Страница 193: ...r buttons are only enabled once you have completed the selection of the two devices that you want to find the physical paths for within the wizard Changing the Displayed Path The Trace Path toolbar lists the total number of physical paths that have been found between the two selected devices and indicates which of those paths is currently displayed To change between paths click the Previous Path o...

Страница 194: ...ms are hidden from view Figure 67 Trace Path Filtered View To switch to filtered Trace Path view toggle the Change View button in the Trace Path toolbar Figure 68 Switching to Filtered Trace Path View Button Action Explanation Previous Path Changes the displayed path to the one preceding the currently viewed path This is not available when you are viewing the first found path Next Path Changes the...

Страница 195: ...or each device you must first select appropriate search criteria to find the device The search criteria are specified in the same manner as they are specified within the Find dialog box See Finding Items on Your Network on page 192 for more information However only the Devices and NBX telephony components options are available within the Find list After you have entered suitable search criteria to...

Страница 196: ...led for you with details of the selected device that will allow you to find it easily and set it as the start device of the path If you have no devices selected or you have more than two devices selected when you select Tools Trace Path then none of the steps of the wizard are pre filled for you Finding Items on Your Network You can find devices subnets device groups or links on your network by se...

Страница 197: ...at item in the map and if it is a device or subnet in the tree You may select multiple items in the results table in the same manner as you may select multiple items in the tree See Selecting Items in the Map and Tree on page 180 for more information To select all of the items in the results table select a single item and then press Ctrl A Double clicking an item in the results table enters the su...

Страница 198: ... feature to find all items that have the attribute specified in the Search by option For example if you leave the value field empty when searching by IP address 3Com Network Director will list all devices with an IP address on your network Searching Within the Search Results The Find dialog box by default performs a fresh search across all of the items in the map every time Find is clicked However...

Страница 199: ...k The following Search by options are available Table 32 Search by Options Search by Option Description Name Finds devices whose Custom Name DNS Name or System Name matches the entered name When the Find dialog is launched from Edit Find or the toolbar this also finds matching clouds subnets and device groups You may use wildcards in the value that you enter in the Name field User name Find device...

Страница 200: ...ards or leave the Software version field blank and a device has multiple software versions that match the entered software version then the device will be listed multiple times in the results table once for each matching software version Serial number Finds devices whose serial number matches the entered serial number You may use wildcards in the value that you enter in the Serial number field Cha...

Страница 201: ...n field Comment Finds devices whose comment matches the entered comment When the Find dialog is launched from Edit Find or the toolbar this also finds clouds subnets and device groups whose comment matches the entered comment You may use wildcards in the value that you enter in the Comment field Search by Option Description Linked to device Finds links where a device at one end of the link has a C...

Страница 202: ...lex mode Finds links that are running in a particular duplex mode You can search for links that are running in either Full or Half duplex mode Aggregated links whose component links are running in different duplex modes will match searches for either duplex mode Spanning tree mode Finds links that are running in a particular spanning tree mode You can search for links that are running in forwardin...

Страница 203: ...hat have a user title assigned to them on their associated NCP that matches the entered user title You may use wildcards in the value that you enter in the User title field User department Find NBX telephony components that have a user department assigned to them on their associated NCP that matches the entered user department You may use wildcards in the value that you enter in the User departmen...

Страница 204: ...he NBX telephony component will be listed multiple times in the results table once for each matching IP address MAC address Finds NBX telephony components that have an MAC address that matches the entered MAC address You may use wildcards in any of the six fields of the MAC address If you use wildcards or leave one or more fields of the MAC address blank and an NBX telephony component has more tha...

Страница 205: ...e information see Saving and Opening Maps on page 206 Automatic Relayout of Maps You may wish to relayout an entire submap perhaps due to changes you have made to the map contents 3Com Network Director can perform the relayout automatically for you To perform an automatic relayout of the currently viewed submap select View Relayout Map For more information about changing the map contents see Manua...

Страница 206: ...iscovered on your network In some instances you may wish to add map items to represent logical entities or devices not present in the discovered network You may also wish to delete map items that you are not interested in or add links between map items to represent logical connections or as yet undiscovered links Adding Items to the Map Devices and clouds can be added to the currently viewed subma...

Страница 207: ...tails for them To do this launch the Properties dialog box for each of the map items In particular you may wish to set the IP address for a device Doing so will cause 3Com Network Director to interrogate the device to determine as much information about it as it can including changing the device s icon to represent it as accurately as possible For more information about setting the IP address of a...

Страница 208: ... on the device s For more information about how to set the port for a device at one end of a link see Properties Dialog Box for a Node on page 236 Deleting Items from the Map Any map item or link can be deleted from the map by selecting it and selecting Edit Delete Deleting an map item or link will remove it from all submaps that it is present in The only way to re add a map item is to either re d...

Страница 209: ...work Login on page 227 When a user logs on or off the network 3Com Network Director receives an SNMP trap from the 3Com switch the user is connected to This trap includes details of the logon off and 3Com Network Director uses this data to dynamically update the network map If a user has logged onto the network from an end station that is not currently in the map then this end station is dynamical...

Страница 210: ...iew menu If you choose to either exit 3Com Network Director or open another map 3Com Network Director may prompt you to save the map This will occur if The map was newly created and has never been saved Any of the above information has changed since the map was last saved If you intend in the future to manage the same portion of network that is currently discovered in the map 3Com recommends that ...

Страница 211: ...ecting one of these entries in the File menu will open that map Default Map Location By default 3Com Network Director saves maps into and opens maps from the following location Installation Directory maps my_maps where Installation Directory is the directory where 3Com Network Director is installed You can change this location when you are opening or saving maps via the standard file browse dialog...

Страница 212: ...e Exporting Maps to Microsoft Visio 3Com Network Director allows you to export your network map to Microsoft Visio You can navigate to the subnet that you want to export or uncheck the View Group Map by Subnet option to export the entire map Selecting File Export to Visio launches the Export to Visio dialog box The standard Microsoft Visio file extension vdx is appended to the end of the filename ...

Страница 213: ...Components 209 Figure 75 Export to Visio Dialog Box ...

Страница 214: ...urrently viewed submap this also may result in the device labels not being visible in the printed output If the currently visible map has a background image specified in it then you may include this in the print out by checking the Print background image checkbox If you require a printout that includes the devices labels 3Com recommends that you export the map for use in Microsoft Visio and use Mi...

Страница 215: ...termined its size will not be changed unless you resize it by launching the Scale Background Image dialog box again This allows you to manually layout the map items over the background image and have them appear in the same location over the background image regardless of any zooming or panning of the submap that you may do To clear the background image from the currently viewed submap select View...

Страница 216: ... The following section provides some examples of how to perform common tasks with the map and tree Selecting all of the SuperStack 3 Switch 4400 Devices in the Network You wish to locate and select all of the SuperStack 3 Switch 4400 devices in your network so that you can run the Capacity report for them See Capacity Report on page 457 of further information 1 Launch the Find dialog box by select...

Страница 217: ...s 213 Figure 79 The Search by List 4 Select 3Com Switch 4400 from the Device type list Figure 80 Selection on the Device type List 5 Click Find to search for the devices and wait until the search has completed ...

Страница 218: ...Figure 81 Search Results Table 6 Select a row in the results table and then press Ctrl A to select all of the SuperStack Switch 4400 devices in your network Figure 82 Devices Selected 7 Select Tools Reports to launch the capacity report ...

Страница 219: ...nected to multiple subnets 1 Toggle the View Group Map by Subnet option to change the map to view the devices without grouping them by subnets All of the devices discovered in your network are now shown in a single submap with all of their physical links visible Figure 83 Viewing Devices without Grouping by Subnets 2 Double click on the router s entry in the tree The map zooms in on the router and...

Страница 220: ...216 CHAPTER 5 WORKING WITH THE MAP Figure 84 Double Clicking on a Router in the Tree ...

Страница 221: ... on the servers on a particular subnet 1 Double click either in the map or in the tree on the subnet that the servers are in The map changes to show the contents of that subnet Figure 85 Double Clicking on a Subnet 2 Locate the servers in the tree Select the first one with a single click and then use Ctrl click to add each of the other servers into the selection ...

Страница 222: ...8 CHAPTER 5 WORKING WITH THE MAP Figure 86 Selection of Multiple Servers 3 Click on the Zoom in button in the toolbar This centers the display around the selected servers and zooms in Figure 87 Zooming In ...

Страница 223: ...Examples 219 4 Repeat click on the Zoom in button in the toolbar until the servers are at the level of magnification desired Figure 88 Adjusting the Magnification ...

Страница 224: ... and you wish to add a link between two devices that are on different submaps 1 Locate the two devices in the tree select the first one with a single click and the second one with Ctrl click Figure 89 Locating the Two Devices 2 Select Edit Add Link This will add a link between the two devices and will add shortcut icons to the appropriate submaps ...

Страница 225: ...ssary for either of the devices to be visible in the display in order to link them in this way Adding a New Device on Your Network Into the Map You have just connected a new stackable switch to the network and wish to add it into the map so that you can manage it ...

Страница 226: ...nd navigate to the subnet that the new switch is present on so that the device is present in the correct submap 1 Find the submap in the tree and double click on it to open the submap Figure 91 Opening the Submap 2 Select Edit Add Map Item to launch the Add Map Item dialog box and locate the stackable switch icon in the list ...

Страница 227: ...igure 92 Selecting Edit Add Map 3 Click and drag the stackable switch icon across into the location in the map where you wish the switch to be placed and drop the icon there Figure 93 Moving the Stackable Switch Icon ...

Страница 228: ... do this see Setting the IP Address for a Manually Added Device on page 255 As well as adding in the switch to the map using the Add Map Item dialog you could also add the switch by rediscovering the subnet that the switch is present on If you have configured a scheduled discovery then this will happen automatically the next time the scheduled discovery discovers the subnet For more information ab...

Страница 229: ...ngine EME installed in your Switch 4007 chassis 3Com Network Director will treat the EME as a blade within the chassis for presentation purposes As a result the EME will not be represented as a separate icon on the map and the Switch 4007 icon will be shown linked to the device that provides the EME with it s network connection point 3Com Wireless Access Points Wireless clients tend to be very tra...

Страница 230: ... on page 273 Files Associated with Saved Maps When a map is saved 3Com Network Director actually creates or updates three files to contain the contents of that map The three files are named based upon the name you choose and are as follows Table 35 Saved Map Files Filename Contents MapName map Details of the discovered devices and their attributes the network topology and how it is laid out naviga...

Страница 231: ...ia 3Com switches This feature combines the IEEE 802 1X protocol for port control and RADIUS for authentication IEEE 802 1X specifies how to have ports on an access point e g a 3Com switch restrict access to a connected end station When an end station attempts to first access the network via a port on a suitably configured 3Com switch the switch informs the end station that it is a restricted port ...

Страница 232: ...or a protocol providing authentication and accounting services It is used as part of 3Com s Network Login and Switch Login features Switch Login is a feature which stores the TELNET and web username and password details for a 3Com switch on a RADIUS server rather than local to the switch ...

Страница 233: ...ms on the network map Specify custom information such as Custom Name and Comments for the items on the network map Change the community strings that 3Com Network Director uses for an individual device or for several simultaneously Modify the monitoring options for an individual device or for several simultaneously Modify how 3Com Network Director communicates with an individual device or with seve...

Страница 234: ... client machine attached to the network Phone a node that has voice over IP VoIP capability Subnets a subnet is a section of the network in which all devices have an IP address within a defined range Device Groups a group represents one or several devices and links that were grouped using the Edit Group Devices menu option Clouds a cloud corresponds to an area of the network map for which 3Com Net...

Страница 235: ...ption Refer to Working with the Map on page 151 for more details on how to find and select map items Structure of the Properties Dialog Box The Tabbed Pane The information presented in the Properties dialog box is organized by tabs with each tab corresponding to a topic For instance General VLANs Addresses To view topical information for an item simply click the corresponding tab This displays the...

Страница 236: ...ormation varies depending on the item selected Unit General information on the single unit for the device such as type and system information Addresses List of IP and MAC addresses for the item Security Security settings for the item such as the community strings that 3Com Network Director should use to communicate with the item Ports Information regarding the ports at each end of the link Power o...

Страница 237: ...red on the device or the VLAN the selected end station is part of Phone Information regarding the selected phone Discovery Options Which nodes should be considered during network discovery Monitoring Monitoring settings for the item such as the use of SNMP traps Retry Timeout Information regarding the retry and timeout settings used by 3Com Network Director when communicating with the device Tab T...

Страница 238: ...e It represents the whole device The label displayed in the tree corresponds to the label displayed on the network map such as Custom Name System Name IP Address etc Unit this is displayed under the device tree node if there are at least two units within the device or the device is a chassis It represents an individual unit within a stack or a blade within a chassis The label displayed in the tree...

Страница 239: ...this is displayed under the device tree node if the device consists of only one unit or under the unit tree node if there are several units within the device or the device is a chassis It represents an individual interface within the unit blade that could not be mapped to a port on the device The label displayed in the tree corresponds to the ifIndex and the type of interface If the port is connec...

Страница 240: ...s dialog box for the various types of nodes are similar but there are some slight differences as highlighted in the following paragraphs Table 37 shows the tabs that are displayed and the contents of these tabs Table 37 The Tabs for a Node For a MAC only device the Monitoring tab will show No monitoring is available because 3Com Network Director cannot monitor a MAC only device Tab Title Contents ...

Страница 241: ...terfaces on the device that could not be mapped to ports Select the ifIndex of the interface in the tree to view the properties for that interface The tabs available for an interface are shown in Table 39 Table 39 Tabs for an interface The tree also shows the aggregated links set up on the device The tabs available for an aggregated link are shown in Table 40 Tab Title Contents General General set...

Страница 242: ... on each unit slot and the ifIndices and aggregated links on the device as shown in Figure 100 Tab Title Contents General The settings for the aggregated link such as speed duplex mode LACP state etc Information on the individual ports that form the aggregation Power over Ethernet Information regarding the power over Ethernet settings and usage for the selected port at the end of a link VLANs The ...

Страница 243: ...it Slot Supported Device Single Unit If the device is neither a stack nor a chassis device the tree on the left hand side of the dialog box shows the device the ports interfaces and aggregated links on the device as shown in Figure 101 Tab Title Contents General The system information for the unit blade such as type hardware and software version etc Custom information for the unit such as comments...

Страница 244: ... an additional Unit tab is available for the device That tab shows the information in the same format as the General tab for a unit See Table 41 Properties Dialog Box for an Unsupported Device 3Com Network Director cannot list the units interfaces or ports within a device that it does not support For this reason there is no tree on the left hand side of the dialog box as shown in Figure 102 ...

Страница 245: ...ever information is missing 3Com Network Director shows N A indicating that it is not applicable or Unknown indicating that 3Com Network Director could not get the information Properties Dialog Box for an End Station End stations usually consist of a single port so 3Com Network Director does not show a tree on the left hand side of the dialog box as shown in Figure 103 ...

Страница 246: ...known indicating that 3Com Network Director could not get the information If the NBX pcXset software softphone application is running on the end station the Phone tab is also available See Phone tab on page 243 for the contents of that tab Properties Dialog Box for a Phone Because phones are unmanaged 3Com Network Director cannot represent individual port information for them Because of this there...

Страница 247: ...such as User information for the phone User title user name user department Phone information Extension number location Because phones are unmanaged some information might be missing Whenever information is missing 3Com Network Director shows N A indicating that it is not applicable or Unknown indicating that 3Com Network Director could not get the information ...

Страница 248: ... Title Contents General General and custom information for the subnet such as custom name subnet address comments etc Discovery Options Which nodes should be considered on this subnet during network discovery Monitoring Monitoring settings for the subnet such as the use of SNMP traps Retry Timeout Information regarding the settings used by 3Com Network Director when communicating with the devices ...

Страница 249: ...ure 106 Figure 106 Properties Dialog Box for a Device Group The General tab shows the following information Custom Name The name of the device group as it appears on the map Comments The custom comment for the device group Properties Dialog Box for a Cloud The Properties dialog box for a cloud consists of a single General tab as shown in Figure 107 ...

Страница 250: ...the cloud Type this corresponds to the media types of the links connected to the cloud For instance Ethernet ATM FDDI etc Comments the custom comment for the cloud The type of the cloud is determined from the media types of the network interfaces connected to it If all the connected interfaces are of the same media type the cloud type is set to that media type ...

Страница 251: ... type that is not commonly used for WAN communications then the cloud type is set to Mixed If there is no interface connected to the cloud the cloud type is unknown Properties Dialog Box for a Link This section describes the Properties dialog box for the various types of links Properties Dialog Box for a Non WAN Link The Properties dialog box for a non WAN link between two nodes consists of a tabb...

Страница 252: ...ilable for a Non WAN Link Tab Title Contents General General information for the link such as speed duplex mode etc Custom information such as comments Ports Information for the devices at each end of the link such as device name and IP address Settings for the port at each end of the link such as port number auto negotiation settings spanning tree state etc ...

Страница 253: ...ure 109 Figure 109 Properties Dialog Box for a WAN Link Power over Ethernet Information regarding the power over Ethernet settings and usage for the ports at either end of the link VLANs The VLANs that the ports at either end of the link are part of whether the ports are tagged etc Monitoring Monitoring settings for the link such as the use of SNMP traps Tab Title Contents ...

Страница 254: ... as shown in Figure 110 Tab Title Contents General General information for the link such as media type and speed Custom information such as comments Ports Information for the device at one end of the link such as device name ifIndex and IP address Information for the WAN end of the link such as WAN cloud name and type VLANs The VLANs that the ports at either end of the link are part of whether the...

Страница 255: ...x for a Multiple Selection When multiple items are selected on the map and the Properties dialog box is launched no tree is available on the left hand side Instead explanatory text is displayed as shown in Figure 111 Tab Title Contents General General information about the source of the layer 3 connection on the device end of the link such as details of the IP interface and the ports it is associa...

Страница 256: ...types then the General tab will be shown containing only the Comments section In addition if the Security tab would be displayed for any of the selected items if the Properties dialog box was launched for them individually then the Security tab is also displayed For example if three links are selected one of which is an aggregated link and the Properties dialog box is launched then the General Por...

Страница 257: ...he Selection Where possible 3Com Network Director displays the original layout for each tab If the information for a field within a tab is the same for all selected items that information is displayed If the information differs between the items the information shows multiple values For example Figure 113 shows a section of the General tab for two devices of the same type 3Com SuperStack 3 Switch ...

Страница 258: ...menu option Changing the Custom Name only changes the label that 3Com Network Director uses for the network map if you are changing the label for a device then 3Com Network Director makes no changes to the device itself Changing the Comments 3Com Network Director allows you to specify comments for any item on the network including the units ports and interfaces on a node To specify comments 1 Clic...

Страница 259: ...ning The IP address must be a valid address must be within the range allowed for the subnet the device was added to and must not be already used by another device otherwise a warning message is displayed 5 3Com Network Director then tries to contact the device using the IP address you specified If the IP address does not respond the dialog box shown in Figure 114 is displayed Click No to enter a d...

Страница 260: ...Manually Added Device Figure 115 Cannot Contact the IP Address Specified Assigning an IP address to a manually added device only defines the IP address that 3Com Network Director uses to communicate with the device it does not assign the IP address to the device itself ...

Страница 261: ...port in the Add Port dialog box Click OK The port or interface being used for the From device is now listed 5 Click on the Set button and select the unit if applicable and port or interface on which the link is connected for the To port in the Add Port dialog box Click OK The port or interface being used for the To device is now listed You can only select a port or interface that is not already co...

Страница 262: ...e to communicate with a device This can be useful if a device has had its community strings changed since it was first discovered and you want to change the community strings that 3Com Network Director uses so that you can continue to monitor it or if a new device has been manually added to the 3Com Network Director map and you want to specify the community strings that should be used to communica...

Страница 263: ...pecify option This enables the Read and Write fields 5 Enter the new community strings in the Read and Write sections 6 Click OK to validate your changes 3Com Network Director attempts to use the specified community strings to communicate with the device If the strings provided are not accepted by the device 3Com Network Director shows the dialog box in Figure 118 If you want to return to the exis...

Страница 264: ...260 CHAPTER 6 VIEWING DEVICE DETAILS Figure 117 Security Tab for a Device ...

Страница 265: ...twork Director uses to communicate with the device it does not change the community strings on the device itself Changing the Monitoring Settings The monitoring settings for devices and links allow you control the levels of monitoring to perform for those items In addition monitoring settings can be controlled for subnets allowing you to specify subnet wide settings without having to configure the...

Страница 266: ...t The retry and timeout settings for a device allow you to tune the communications between 3Com Network Director and the device so that they can cope with slow or unreliable links For example a slow WAN link may require higher timeout settings while a wireless building to building bridge may require more retries if it is subject to large amounts of interference It is also possible to configure the...

Страница 267: ...etwork and how to change them is covered in detail in Using 3Com Network Director On A Multi Site Network on page 681 Changing the Discovery Options for a Subnet The discovery options for a subnet allow you to control the type of devices that are discovered whenever a Network Discovery is performed for the subnet Discovery options for a subnet can be configured from within the Discovery options ta...

Страница 268: ...scovery options for subnets and the effects that they have are given in Discovery Options Pane on page 122 Examples The following section details examples of using the Properties dialog box How Do I View the Properties of a Specific Port on a Device You want to check the settings of port 5 on slot 4 of your 3Com Switch 4007 ...

Страница 269: ...ion to launch the Properties dialog box 3 To expand the tree and display all the ports on Slot 4 of your Switch 4007 click on the sign beside the tree branch corresponding to Slot 4 on the left hand pane of the dialog box 4 Select Port 5 in the tree to show the properties for that port The properties for that port are now displayed as shown in Figure 122 ...

Страница 270: ...devices To change the community strings for all devices in a subnet 1 Click on the icon for the subnet in the 3Com Network Director map to select it 2 Select the View Enter Submap menu option to display the contents of the subnet 3 Select the View Select All menu option to select all items within the subnet 4 Select the Device Properties menu option to launch the Properties dialog box 5 Select the...

Страница 271: ...munity string in the Read and Write sections 8 Click OK to validate your changes 3Com Network Director now uses the community strings you specified to communicate with the selected devices Figure 123 Security Tab for Multiple Devices ...

Страница 272: ...sion for a blade in a chassis select the corresponding Slot in the tree in the left hand pane of the dialog box How Do I Prevent the Discovery of End Stations in a Subnet You have a subnet that contains hundreds of end stations You are not interested in the end stations in that subnet and want the subnet to contain only core network devices 1 If you have already discovered the subnet delete it fro...

Страница 273: ...e defaults from option is checked uncheck it 5 Select the SNMP traps only monitoring mode option 6 Click OK to validate your changes Key Considerations The following section provides assistance when working with device properties Troubleshooting Some advice on errors that may occur on the system is given below There Is No Port Information For My Device The Properties dialog box for the device you ...

Страница 274: ...the fields displayed in the Properties dialog box show Unknown There are several reasons why this happens The device you selected is not fully supported by 3Com Network Director If the device is not fully supported by 3Com Network Director the necessary information cannot be collected For these fields 3Com Network Director shows Unknown Ensure that the device is fully supported by 3Com Network Dir...

Страница 275: ...s displayed which reads Please wait while the new properties are verified and applied This is normal When an IP address is assigned to a manually added device 3Com Network Director checks whether the device is available on the network if it is it retrieves the device name type and other properties from the device verifies them and updates the map which explains the time required It usually takes a...

Страница 276: ...272 CHAPTER 6 VIEWING DEVICE DETAILS ...

Страница 277: ...his section describes the key concepts associated with monitoring your network using 3Com Network Director Monitor A monitor is a counter or status indicator for a device or link that collects data about one of its attributes such as the number of packets a device has been sent or whether a link is up or down A device or link may have multiple monitors that provide a complete picture of the networ...

Страница 278: ... and to assist with determining a resolution For more information on the events system see Working With Events on page 319 The monitor states that indicate abnormal network conditions are based upon thresholds For more information see Setting Thresholds for Monitor Based Events on page 356 Monitoring State 3Com Network Director indicates the monitoring state of each monitored device by coloring th...

Страница 279: ...oring scheme also allows you to quickly determine if a device or link is being monitored monitored items are colored and unmonitored items are not Color Description Red There are unresolved events for the item and the highest has a high critical or recurring severity Yellow There are unresolved events for the item and the highest has a warning severity Green There are no unresolved events for the ...

Страница 280: ...within the subnet When determining the monitoring state of a submap 3Com Network Director ignores any map items or links that are visible at a higher level in the hierarchy than the submap itself For example the monitoring state of a router will not affect the monitoring state of the subnets that it is present on as the router is visible in the top level map which is the highest level in the hiera...

Страница 281: ... ICMP ping message to the device being monitored and using the response time or lack of a response to update the state of the monitor it is being used for SNMP MIB Data Retrieval Many network infrastructure devices maintain statistics about their operation which may include such details as the number of packets sent and received on each port or the status of their components and allow access to th...

Страница 282: ...bout their operation and allow access to this information via SNMP MIBs often also support the concept of SNMP traps SNMP traps are unsolicited messages sent out by the devices when the data stored in the SNMP MIB indicates that the device is in certain states These may indicate simple state changes such as a port going up or down or may indicate more complex state changes such as the received pac...

Страница 283: ...l monitor most non 3Com network devices to some extent However as some non 3Com devices do not present their statistics in a standard manner 3Com Network Director is unable to provide full monitoring support for non 3Com devices In particular 3Com Network Director will not monitor features on non 3Com devices whose statistics are presented via proprietary mechanisms 3Com Network Director will not ...

Страница 284: ... to be used as the data source whenever you stop or start monitoring on either of the devices at the ends of the link If you stop monitoring on the device that has been selected as the data source for the link then 3Com Network Director will automatically switch across to using the device at the other end of the link as the data source If you subsequently restart monitoring on that device then 3Co...

Страница 285: ...for the active monitors of the device or link revert to their configured settings when you close the Live Graphs window Live Graphs Tree The contents of the tree depend upon the map item that the graphs are being shown for For devices the tree shows a hierarchical breakdown of the components of that device For modular devices the hierarchy lists the device as the top level folder the modules as fo...

Страница 286: ...e graphs for the states of the monitors relevant to the item selected in the tree Each monitor s entry shows the name of the monitor that the graph is for and the graph itself Figure 126 Live Graph Display The graph displays the historical state of the monitor For example for the IP Ping Service monitor the graph displays a history of the IP ping response time for the device A history for each mon...

Страница 287: ...ation if a monitor stays in the warning or high state long enough then it will generate an appropriate event When a graph for a multi state monitor includes values that are near or exceed the warning threshold a yellow horizontal dashed line is displayed on the graph to indicate the warning threshold level Additionally if the graph includes values that are near or exceed the high threshold a red h...

Страница 288: ...ne that shows the historical monitor state is also color coded to show the state of the monitor throughout its history green for those times when it was normal i e below the warning threshold yellow for warning and red for high Threshold lines are not displayed for bi state monitors However these monitors still color code the graphed line to represent the state green for the good state and red for...

Страница 289: ... Live Graphs Monitor Menu Menu Item Hot Key Operation Close Closes the Live Graphs dialog box Menu Item Hot Key Operation Detailed graph Launches the Detailed Graph dialog box for the selected monitor See Detailed Graph Dialog Box on page 287 for more information More detail Launches the More Detail dialog box for the selected monitor See More Detail Dialog Box on page 286 for more information Cha...

Страница 290: ...s entry in the live graph display area of the Live Graphs window and select Monitor More detail The More Detail dialog box is shown below Figure 129 More Detail Dialog Box Menu Item Hot Key Operation Display thresholds Toggles the forcing of the display of scaling of the monitors mini graphs to the thresholds set for the monitors in their mini graphs See Displaying Thresholds on page 283 for more ...

Страница 291: ...he right The information displayed in the More Detail dialog box is not dynamic If you launch the More Detail dialog box when a monitor is in an abnormal state and it subsequently returns to a normal state the More Detail dialog box will continue to display details of the abnormal state As well as providing details of the selected monitor the More Details dialog box also allows you to configure th...

Страница 292: ... the Live Graphs window the graphed line that shows the historical monitor state is color coded green yellow or red to show the state of the monitor throughout its history Viewing a Monitor s Component Values Some monitors calculate their state from a set of component values When you launch a Detailed Graph for such a monitor the options area is split into two sections with the Data to Graph secti...

Страница 293: ...ion However when it is disabled the horizontal dashed threshold lines are not displayed even if the highest value in the monitor s history exceeds a threshold value although the monitor s graph line is still colored green yellow or red as appropriate Note that with this option enabled any component values the monitor may have will be automatically disabled to avoid confusion in the data being pres...

Страница 294: ...ou have resized the detailed graph so that it is much smaller the plot points may obscure the detail in the graph Disabling this option hides the symbols on the plot points The difference in clarity can be seen below Figure 133 Show Plot Points Exporting a Graph Right clicking on a graph produces a pop up menu on which you can select the Save Graph As menu option This option allows you to save the...

Страница 295: ...raph Save As Dialog box Zooming into a Graph Left clicking or right clicking on a graph and dragging the mouse produces a highlighted area When you release the mouse the graph zooms in to show your highlighted area in more detail ...

Страница 296: ...292 CHAPTER 7 MONITORING THE NETWORK Zooming in Figure 135 Selecting Area for Zoomed in Graph View After zooming in Figure 136 Zoomed in Graph View ...

Страница 297: ...equire in managing your network Starting and Stopping Monitoring Before 3Com Network Director can generate events for devices in your network you must first start monitoring on those devices This can be performed automatically from the Network Discovery Wizard See Specifying Monitoring Mode in the Discovery Wizard on page 302 for more information However you may wish to modify the set of monitored...

Страница 298: ...ual Monitors Each monitor provides details of the state of a particular attribute of a device or link If a particular attribute is of no interest to you but you still wish to monitor other attributes on a device or link then you may disable the monitor for that attribute in order to reduce the amount of network traffic generated by 3Com Network Director Individual monitors can be disabled from the...

Страница 299: ...ver the monitor In the Live Graphs window the graph is otherwise blank Figure 137 Disabled Monitor Screen In the Detailed Graph dialog box for the monitor the graph also shows the history for the monitor at the time the monitor was disabled Figure 138 Detailed Graph for Disabled Monitor ...

Страница 300: ...the subnet will use the settings you specify here Device The Monitoring tab in the Properties dialog box for a device allows you to override the whole map and if applicable subnet settings for a particular device and so control the traffic generated by the monitoring of that device Unless explicitly overridden at the device level devices that appear in more than one subnet such as routers and laye...

Страница 301: ... registers itself as an SNMP trap source if it can or ignores any SNMP Traps received from the device if it cannot See Registering 3Com Network Director as an SNMP Trap Destination on page 304 for more information This mode generates the least traffic of all but no live monitoring information will be available for the device and no events will be generated for the device When you start monitoring ...

Страница 302: ...ling less frequently any peaks in the monitor value will be averaged out more and so it reduces the level of information that a monitor may provide At the whole map and subnet level it is possible to specify two different poll rates one for core devices such as routers switches and hubs and one for non core devices such as end stations It is not possible to change the poll rates when automatic mon...

Страница 303: ...ector automatically controls the Monitoring global defaults settings If Use automatic monitoring is not selected then the monitoring mode and poll rate to apply to the whole map can be specified in the Monitoring global defaults portion of the dialog box If you are in automatic mode or you have not changed the poll rates from the default and a Network Discovery adds more devices to your map then 3...

Страница 304: ...ng mode and wish to change these settings for a particular subnet open the Monitoring tab of the subnet s Properties dialog box Figure 140 Monitoring Tab of Subnet s Properties Dialog Box By default all subnets will inherit their settings from the Tools Options dialog box In order to change the monitoring mode and poll rates for a subnet you will need to uncheck the Use defaults from Tools Options...

Страница 305: ...rit their settings either from their subnet or if the device is in multiple subnets from the Tools Options dialog box In order to change the monitoring mode and poll rates for a device you will need to uncheck the Use defaults from subnet subnet name checkbox after which you can set the monitoring mode and poll rate for the device If you launch the Properties dialog box against multiple selected d...

Страница 306: ...bnet then all devices within the subnet that are currently in the No monitoring mode will revert to their previous settings Specifying Monitoring Mode in the Discovery Wizard In the Network Discovery wizard after selecting the discovery type and optionally subnets the Monitor Core Devices and Links pane is displayed If you are using automatic monitoring mode for the whole map then this pane allows...

Страница 307: ...subnets Newly discovered core devices within the subnets will be configured to inherit their settings from the subnet For both new discovery and rediscovery operations newly discovered non core devices will be configured to inherit their settings from the subnet but will initially have monitoring disabled and so will be in No monitoring mode Poll rates cannot be specified within the Monitoring pan...

Страница 308: ...eneration from Monitors 3Com Network Director uses monitors to generate events If a monitor remains in a warning or high state for an extended period of time an event will be generated The warning and high states for a monitor are determined from the setting of a threshold for the monitor This threshold specifies the state that the monitor must reach to enter its high state 3Com Network Director t...

Страница 309: ... registered will remain registered until 3Com Network Director deregisters itself in the normal course of operations If you wish to immediately de register against all devices on your network uncheck this option save your map and re open it again Even if this option is unchecked 3Com Network Director will still generate events for traps that it receives from any devices that are still configured w...

Страница 310: ...traps from a non 3Com device then you will need to manually remove the IP address of the PC that 3Com Network Director is running on from the trap destination table of that device Please refer to the device s own user guide for details on how to do this Configuring the Storage of Monitoring Data By default 3Com Network Director maintains a 10 minute history of the monitor state for each monitor Th...

Страница 311: ...ny excess data If you do not wish to maintain monitor histories at all then you can uncheck the checkbox for the Maintain monitor history for setting 3Com Network Director will then only keep the two most recent monitor states for each monitor Decreasing the time period for which history is maintained will reduce the memory used by 3Com Network Director on your PC You may wish to decrease this tim...

Страница 312: ...indow status bar Figure 145 Monitoring Progress Display in Main Window Status bar When monitoring has been started on all core devices the status bar will be updated to indicate this Figure 146 Monitoring Started Indication in Main Window Status bar Disabling Monitoring on the Whole Network You are currently monitoring the majority of the devices and links in your network and are concerned that th...

Страница 313: ...AN links You decide that you wish to fully monitor the devices on a subnet at a particular remote office but only wish to poll core devices every 5 minutes and non core devices every 10 minutes 1 Select the subnet at the particular remote office in the main window tree or map Figure 147 Subnet Selection from Main Window Tree 2 Launch the Properties dialog box for the subnet from Device Properties ...

Страница 314: ...7 MONITORING THE NETWORK Figure 148 Properties Dialog Box for a Subnet 3 Uncheck the Use defaults from Tools Options dialog box option This allows you to set the monitoring mode and poll rate options for the subnet ...

Страница 315: ...re 149 Use Defaults Option in Tools Options Dialog Box 4 Ensure that the Full monitoring mode is selected 5 Edit the poll rates for the core devices and non core devices setting them to 300 and 600 seconds respectively ...

Страница 316: ...312 CHAPTER 7 MONITORING THE NETWORK Figure 150 Poll Rates in Tools Options Dialog Box 6 Close the Properties dialog box by clicking OK ...

Страница 317: ...te history does not provide you with enough information for your purposes and wish to extend it to 30 minutes 1 Launch the Tools Options dialog box and select the Logging tab Figure 151 Logging Tab of Tools Options Dialog Box 2 Edit the Maintain monitor history for field changing the value to 30 minutes ...

Страница 318: ...ink you will not have any data available for generating historical reports for that item Similarly if you temporarily stop monitoring a device or link there will be gaps in the data available for historical reports See History Tab on page 460 for more information Text Displayed in Graphs The graphs displayed in the Live Graphs window and the Detailed Graph dialog box may sometimes have text displa...

Страница 319: ...first turn on monitoring for an end station or server 3Com Network Director will attempt to monitor several services on these devices such as FTP and HTTP most of which may not be supported by the device Data Unavailable is also displayed for the Utilization monitor of a WAN link if a speed could not be determined for the connection in one or both directions You can set the speeds for both directi...

Страница 320: ...ion for link monitoring even if they are monitored in full monitoring mode Clouds Clouds are used to represent unknown portions of the network or logical entities within the network and do not represent physical items from which data may be collected If neither of the items at either end of a link can provide suitable monitoring information 3Com Network Director will not be able to monitor the con...

Страница 321: ...Key Considerations 317 Figure 153 Error Message Dialog Box Click on the Next and Back buttons to see detailed information on each problem item ...

Страница 322: ...318 CHAPTER 7 MONITORING THE NETWORK ...

Страница 323: ... logged events are relevant and concise This chapter covers the following topics Key Concepts Events List Components Event System Configuration Alert System Components Examples Key Considerations Key Concepts This section describes the key concepts associated with the events system within 3Com Network Director Events An event is a logged notification of something of interest that has occurred eith...

Страница 324: ...ia e mail pager or various other means Event Types There are three basic types of event that may be generated depending upon the source that was used to generate the event These are monitor based events SNMP trap based events 3Com Network Director internal events Monitor Based Events Monitor based events are generated as a result of an active monitor for a device or link entering a state that indi...

Страница 325: ...h a particular port reaches a certain level For more information on SNMP traps see Controlling SNMP Trap Filtering on page 354 3Com Network Director Internal Events When you perform certain operations within 3Com Network Director such as an Agent Upgrade or Backup an event will be generated when the operation has completed These events provide an audit trail of the operations that you have applied...

Страница 326: ...ay result in a loss of connectivity for a limited number of users or may affect the reliability of your network Critical Severity By default the critical severity is only used for three event types in 3Com Network Director Section of network down The Section of network down event is only generated when a group of devices in your network stop responding to monitoring polls and so may indicate a maj...

Страница 327: ...or can deduce still occurring Unresolved events allow you to see the outstanding abnormal network conditions that may be affecting your users and so can help you determine how to prioritize any actions you may need to take on your network When the condition that led to the original event being logged is later determined to have returned to normal the event is marked as resolved Resolved events all...

Страница 328: ... these events determine that they are caused by a loss of connectivity to that section of the network and replace the set of events with a single Section of network down event Recurring Event Handling Events may be generated repeatedly if a monitor regularly crosses a threshold or if the same SNMP trap type is received repeatedly from a device If all of these events were logged separately in the e...

Страница 329: ... in the map This allows the events system to be focused on only those devices you are interested in Alerts The events system incorporates an alert system that allows actions to be performed when a warning or higher severity event is generated for a device or link Alerts can be used to keep you up to date with the state of your network when you are not at the PC running 3Com Network Director to aut...

Страница 330: ...he initial filtering that is set up within the window Viewing All Events In order to view all of the events logged for the map select Alerts Events All Events or click the corresponding button in the toolbar This launches the Events window with the default filter Viewing Events for a Selection To view all of the events logged for the items currently selected select Alerts Events View Filtered Even...

Страница 331: ... Events window from the right click menu and you already have an Events window on screen that is filtered for events logged for the currently selected items only then 3Com Network Director will bring that Events window to the front Events Main Window The Events window main window consists of a menu toolbar status bars and the table of events that match the currently selected filter Figure 154 Even...

Страница 332: ... configured to show deleted events See Filter Dialog Box on page 339 for more information Severity The severity of the event This column is color coded to allow for easy identification of events that may require more immediate action See Event Severity Colors on page 323 for more information Time The date and time the event was logged Resolved The date and time the event was resolved If the event ...

Страница 333: ...e When this is the case the relevant toolbar button is grayed out Hovering the mouse cursor over a button in the toolbar causes a tooltip for that button to be displayed The tooltip describes the operation associated with the button The operations provided by the toolbar buttons are equivalent to their corresponding menu items Please refer to the Events Menu on page 329 for more information Events...

Страница 334: ...nd Dialog Box on page 338 Filter Launches the Filter dialog box for controlling how the Events list is filtered See Filter Dialog Box on page 339 Select All Ctrl A Selects all events in the Events list View Menu Item Hot Key Operation Refresh F5 Refreshes the Events list from the database See Refreshing the Events List on page 336 Stop Stops any refresh that is currently in progress See Refreshing...

Страница 335: ...alog box for the selected events See Controlling Per Event Advanced Settings on page 355 Go to Navigates in the map to the item that the event was generated for See Navigating to Event Sources in the Map on page 332 Settings Menu Item Hot Key Operation Advanced Launches the global Advanced Settings dialog box See Controlling Global Smart Event Analysis on page 353 Disabled Events Launches the Disa...

Страница 336: ...er added to the list Ready The Events list is not being updated and unless you interrupted the update using View Stop shows all events that match the current filter See Refreshing the Events List on page 336 for more information on interrupting event list updates The right hand side of the status bar indicates the number of events shown in the events list and also if the list is filtered on any fi...

Страница 337: ...there may be some SNMP trap based events logged whose event source does not correspond to any item in the map These events have not in map appended to the event source s name in the Name column of the Events list 3Com Network Director is unable to navigate to the event sources of such events in the map Commenting on Events Each event can have a textual comment added to it These may be used to deta...

Страница 338: ...or if the events have different comments then the Comment dialog box will be empty Updating the comments and clicking OK will set the comments for all the selected events to the entered comment Adding or editing comments in this manner does not in any way tie the events comments together After updating the comments for a selection of multiple events you may view and edit the comments for individua...

Страница 339: ...rring event Rather than waiting for 3Com Network Director to determine whether or not the event is resolved you can manually resolve the event If the event is still not resolved then 3Com Network Director will log a new event when it next detects the abnormal network condition Deleting Events If an event is of no interest to you or you have resolved the event and no longer require a record of it t...

Страница 340: ... has removed the event from the database it is unrecoverable See Managing Event Ageing on page 361 for more information on how the event ageing process decides which events to remove from the database Refreshing the Events List The Events window is automatically kept up to date When new events are logged that match the filter configured for the window the event is automatically added to the list A...

Страница 341: ...export events to a CSV format file select File Export as CSV This launches the Export as CSV dialog box Figure 158 Export as CSV Format Dialog Box You may choose one of two filtering options for the exported events Use current filter This option uses the filter currently configured for the Events window that you are exporting the events from in order to determine which events to export Only those ...

Страница 342: ...s text may include wildcards as described in the table below Table 59 Wildcards Used in Find Operations Once you have entered the search text you may search the list forwards or backwards Find Next Clicking Find Next starts searching the list from the event immediately following the first selected event in the list and searches toward the end of the list If the search locates an event that matches...

Страница 343: ...eached the beginning of the list If you click Find Previous again after the beginning of the list has been reached the search will start again from the end of the list The search is not case sensitive So for example entering NETWORK would find NETWORK Network or even NeTwOrK To close the Find dialog box click Close You may continue to use the normal operations of the Events List while the Find dia...

Страница 344: ...lds Name Filter This field filters for events that were generated by a particular item or set of items If the Events window was launched by selecting Alerts Events View All Events or launched from the Main Window toolbar then this is initially set to All and does not filter any events based on item If the Events window was launched from the right click menu for a selection in the map then this is ...

Страница 345: ...by selecting Specific device or link The list of items only includes those devices and links that events have been generated for along with a special entry Network for 3Com Network Director internal events Multiple items may be selected in the same manner as multiple events may be selected in the Events list Show only voice related events Filter Checking the Show only voice related events checkbox...

Страница 346: ...00am you have not closed the Events window since specifying the 1 day filter at 10 00am and have not updated the filter since then the Events list will remain as filtered for events that have occurred since 10 00am yesterday not since 11 00am yesterday If you do wish to filter for events that have occurred since 11 00am yesterday then you may achieve this by selecting Edit Filter and then clicking...

Страница 347: ... upon the contents of their description This is the default Description containing text This option allows you to specify text to search for in the event descriptions Only events whose description contains the specified text will be shown in the Events list Typing text into the Description containing text field will automatically select the Description containing text option The Description contai...

Страница 348: ...y event that has been logged Name The events have been filtered on name and so only events for the selected items are shown in the Events list Severity The events have been filtered on severity and so only events with a particular severity are shown in the Events list Time The events have been filtered on time and so only recent events are shown in the Events list Resolved The events have been fil...

Страница 349: ...t has caused the problem and provides potential resolutions Clicking the blue underlined title of the monitor that generated the event in the main body of text will bring the Live Graphs window for the item the event was generated for to the front re launching it if necessary and will locate and select the monitor within that dialog box SNMP trap based events If 3Com Network Director was able to i...

Страница 350: ...e content of the main body of text depends upon the event itself but will contain details of the reason for the event and any other pertinent information For monitor based and SNMP trap based events the Events tab also shows details of the number of events generated by this monitor in the last day and the last week below the main body of text and for monitor based events shows details of the absol...

Страница 351: ...een fully collected the graph will remain static A vertical white line is displayed on the graph This indicates the time when the event was generated The text at the bottom of the graph provides a hot link that allows you to view a report showing historical graphs for the item that the event was generated for This report provides a general history of the item and is not limited to or focused on th...

Страница 352: ...f the SNMP trap that the event was generated from Figure 164 Trap Decode Tab The tree within this tab allows you to view the individual varbinds that were contained within the SNMP trap and the three options in the Decode section at the bottom left allow you to select differing levels of decode Numerical decode Object identifiers are shown using their numerical values For example 1 3 6 1 4 1 43 10...

Страница 353: ...es a3Com to show generic 22 2 1 4 1 7 0 4 11 In addition the Display octet strings as ASCII checkbox in the Format section at the bottom right allows you to control whether or not octet strings should be converted to their textual equivalent or simply displayed as raw list of hexadecimal codes Octet strings are often used to hold ASCII encoded text within SNMP trap varbinds Checking this checkbox ...

Страница 354: ...bles the events for items that are currently in the map but also disables them for any items that may be added to the map in future through network discoveries or manual map changes Disabled Events Dialog Box The disabled events can be viewed and can also be re enabled by selecting Settings Disabled Events This launches the Disabled Events dialog box Figure 165 Disabled Events Dialog Box Events ca...

Страница 355: ...licking Select to launch the Selected Items dialog box If the event is currently still enabled on some items in the map then this option will be selected by default and the selection will be initialized to the items that the event is disabled for All devices links This option disables the event for all items as appropriate in the map It will also disable the event automatically for any new items a...

Страница 356: ... the event you are changing the selection for was generated by a device then the Find dialog will allow you to search for Devices and NBX telephony components See Finding Items on Your Network on page 192 for more information To remove items from the selection select the items that you wish to remove and click Remove Changed to the selection are only applied when you click OK Controlling Smart Eve...

Страница 357: ...vent Analysis are enabled on a global basis and for recurring event handling and event suppression on a per event basis See Smart Event Analysis on page 324 for a detailed description Controlling Global Smart Event Analysis In order to configure the global settings for Smart Event Analysis selecting Settings Advanced This launches the global Advanced Settings dialog box Figure 167 Advanced Setting...

Страница 358: ...ise control over SNMP trap filtering can be obtained by clicking Details to launch the Trap Filtering dialog box Figure 168 Trap Filtering Dialog Box By default 3Com Network Director discards all SNMP traps received from devices and ports that are not in the current map without generating events for them The Trap Filtering dialog box allows you to enable or disable the generating of events for SNM...

Страница 359: ...ialog box for a particular event type select an event of that type in the Events dialog box and select Event Advanced Figure 169 Advanced Settings Dialog Box By default Use defaults from Settings Advanced is selected If you wish to override the global recurring event handling and event suppression settings clear this check box You can then select the settings required for these features on this ev...

Страница 360: ...hould be less sensitive to high values and so events will be generated less frequently High and Warning Thresholds Multi state monitors have two thresholds a high threshold and a warning threshold If a monitor exceeds its high threshold for long enough then a high severity event will be generated Similarly if a monitor exceeds its warning threshold for long enough but does not trigger a high sever...

Страница 361: ...rom within the Events window select an event that was generated by the monitor that you wish to change the thresholds for and select Event Change Thresholds See Events List Components on page 326 for further information From within the More Details dialog box for an event that was generated by the monitor that you wish to change the thresholds for click Change Thresholds See More Detail Dialog Box...

Страница 362: ...gh values Increasing the sensitivity will reduce the threshold and so increase the frequency with which events will be generated by the monitor Decreasing the sensitivity will increase the threshold and so decrease the frequency with which events will be generated by the monitor Changes made to the sensitivity slider will be reflected automatically in the High stress threshold value and the Warnin...

Страница 363: ...e Threshold Settings dialog box for the same device the range of the Sensitivity slider will be from 10 minutes to 2880 minutes If you subsequently change the High stress threshold value to 120 minutes and apply it to This device then the next time you launch the Threshold Settings dialog box for the same device the range of the Sensitivity slider will revert back to the default range of 10 minute...

Страница 364: ...s generated for You can extend this selection to include any items of the same type in your map All devices links Changes the threshold for this monitor on all items of the same type This option not only changes the threshold for this monitor on items of the same type that are currently in the map but also changes it for any items of the same type that may be added to the map in future through net...

Страница 365: ...d must be set to at least as long a time period as the time period that event history is stored for since 3Com Network Director uses monitor history to generate the history stored with logged events 3Com Network Director will prevent you from setting a lower time period and will disable event history completely if you disable monitor history Managing Event Ageing Event ageing is the process whereb...

Страница 366: ...he configured maximum number of events then resolved events are removed oldest first Similarly this process continues until either the number of events in the database equals the configured maximum number of events or all of the resolved events have been removed whichever comes first The ageing process will never remove an unresolved event from the events database unless it has been marked for del...

Страница 367: ...re 172 Ageing Dialog Box By default the Ageing process is configured to store a maximum of 5000 events for a maximum of 30 days The Ageing dialog box allows you to Disable the event ageing process completely by selecting Keep events indefinitely If you select this option then events will never be permanently removed from the events database Selectively disable the ageing of events by number of day...

Страница 368: ...may automatically perform operations aimed at resolving the event such as enabling a backup link if a main link fails This section describes how to use the alert system in 3Com Network Director Alerts System Overview The alerts system works in a straightforward manner Each item in the map may have one or more alerts attached to it When a new event is generated for an item all alerts that are attac...

Страница 369: ...lerts When launching the Attach Alerts dialog box from the Events window it is important to remember that alerts will be attached to the items that the selected events were generated for and not to the events themselves As a result alerts will be subsequently triggered for any events generated for the items The Attach Alerts dialog box displays a summary of the alerts currently configured on the s...

Страница 370: ...ecome active after you close the Attach Alerts dialog box by clicking OK If you attach a Sound alert to an item then the alert s action will only be successfully performed if you have a correctly configured sound card and suitable speakers or headphones on the PC running 3Com Network Director Configuring Alerts Alerts can be created modified and deleted from within the Setup Alerts dialog box laun...

Страница 371: ...e values they represent This allows you to configure dynamic alert messages The Alerts System supports the following tokens Table 61 Alert System Tokens To insert a token into a field place the cursor at the location where the token is to be inserted and select the token from the table of tokens shown on the Add Alerts dialog box Tokens may also be typed in directly For example the sample Pop up a...

Страница 372: ...APTER 8 THE EVENT LOG Figure 175 Sample Pop up Alert If this alert was attached to a device and an event was generated for that device due to high utilization then the following pop up would appear on screen ...

Страница 373: ...in the Subject field of E mail and Pager alerts They are not supported in any other fields If you manually type a token in an unsupported field then it will not be replaced with the dynamic value when the alert is generated and so will appear exactly as it is typed SNMP Trap Alerts SNMP trap alerts have two special options available at the bottom of the Add Alert and Edit Alert dialog boxes ...

Страница 374: ...he severity or severities indicated by the selected check boxes Examples This section provides examples of how you may use the events system to view relevant events and assist in troubleshooting Viewing the Unresolved Events for a Subnet You are viewing the devices in your network grouped by subnet and are viewing the top level map One of the subnets that you are monitoring has just changed color ...

Страница 375: ...d high severity events as an indication of the trends and need to export them from 3Com Network Director so that you may import them into your database 1 Launch the Events window by selecting Alerts Events View All Events 2 Launch the Filter dialog box by selecting Edit Filter 3 Click Default Filter to ensure that the filter fields are reset 4 Set the Severity field to High and the Last number of ...

Страница 376: ...372 CHAPTER 8 THE EVENT LOG Figure 179 Filter Dialog Box 7 Days of High Severity 5 Click OK to close the Filter dialog box and update the events in the Events List to match the filter ...

Страница 377: ...port to and click Save You may now import the exported events into your database Undeleting an Event You have just marked an event for deletion in the Events window but have decided that you wish to retain the event after all However the event is no longer visible in the Event window 1 Launch the Filter dialog box by selecting Edit Filter 2 Set the Deleted events field to Show ...

Страница 378: ...374 CHAPTER 8 THE EVENT LOG Figure 181 Filter Dialog Box Show 3 Click OK to close the Filter dialog box and update the events in the Events window to match the filter ...

Страница 379: ... Figure 182 Events Window Updated 4 Locate the event that you wish to retain in the Event list and select it Figure 183 Events Window Select Event 5 Select Edit Undelete This clears the deletion mark for the event ...

Страница 380: ... 1 Add the IP address of the PC running 3Com Network Director to the SNMP trap destination table of the service monitoring application Refer to the user guide of your service monitoring application for details of how to do this 2 Launch the Events window by selecting Alerts Events View All Events 3 Launch the global Advanced Settings dialog box from within the Events window by selecting Settings A...

Страница 381: ...enerate events for SNMP traps received from any device not just the device running the service monitoring application It is not possible to selectively enable or disable the processing of SNMP traps on a per device basis Getting Events As Soon As Your Network Has A Problem You have decided that you wish events to be generated as soon as a monitor passes its high threshold rather than waiting until...

Страница 382: ...uddenly increases to very high levels for very short periods of time before returning to low levels These spikes are not indicative of a network problem but are normal behavior Disabling event suppression will result in events being generated for all such spikes Receiving Notification When A Server Farm Is Unreachable You have a web server farm in your network that is critical to your business as ...

Страница 383: ...ct Alerts Events Attach Alerts to launch the Attach Alerts dialog box 3 Click Set Up Alerts to launch the Set Up Alerts dialog box 4 Click Add to launch the Add Alert dialog box so that you may add a new alert definition for server farm alerts 5 Select the Pager option and enter the details of the message you wish sent and the details of the SMTP host to use for the pager message Figure 187 Add Al...

Страница 384: ...the Set Up Alerts dialog box The Server Farm Alert will now be visible in the list Figure 188 Set Up Alerts Dialog Box 7 Close the Set Up Alerts dialog box by clicking OK to complete the addition of the new alert and return to the Attach Alerts dialog box The Server Farm Alert will now be visible in the list ...

Страница 385: ...Examples 381 Figure 189 Attach Alerts Dialog Box ...

Страница 386: ...om Network Director No Events in the Events List There are various reasons why there may be no events visible in the events list Events List Update Was Stopped If you selected View Stop during the last update of the Events list then you may have stopped the update before any events were found that match the configured filter If this is the case then the status bar at the bottom of the Events windo...

Страница 387: ...ly filtering for events logged in the last day and no events are visible in the Events list then changing this to filter for events logged in the last 5 days will extend the scope of the filter and so is more likely to match one or more events in the database See Filter Dialog Box on page 339 No Graph Available for an Event In order for graphs to be generated for monitor based events 3Com Network ...

Страница 388: ...e only generated for monitor based events If you launch the More Detail dialog box for an SNMP trap based event or a 3Com Network Director internal event then there will be no Graph tab regardless of whether or not the storing of historical data before and after events is enabled ...

Страница 389: ...ems occurred You can also use these reports to see how network usage changes over a period of time See Monitoring the Network on page 273 This chapter covers the following topics Key Concepts Components Examples Useful Information and References Key Considerations Key Concepts Automated logging Whenever you start monitoring an item 3Com Network Director automatically logs all collected data in a d...

Страница 390: ... of data can average out short term spikes that were seen in the monitored data Reporting 3Com Network Director presents long term data in the form of historical HTML reports that display data collected over time in graphs allowing you to analyze trends in your network and identify problems Historical reports on links can show utilization changing over long periods of time and allow you to predict...

Страница 391: ...ents 387 Figure 193 Historical Report Example The historical report is an HTML report showing graphs for collected data for the applicable item at each different resolution The resolutions used are as follows ...

Страница 392: ...a in CSV comma separated value format To do this click the appropriate hot link below the graph This will launch a dialog within 3Com Network Director allowing you to select the location of the exported data When this dialog is closed the browser window will update to show the result of the export operation To return to the historical report click the Back button in your browser Historical reports...

Страница 393: ...TP None HTTP None NFS None SMTP None POP3 None Web cache redirection None For 3Com Switch 4400 4900 performing Web cache redirection Wireless clients None For 3Com Wireless AP 8000 Wireless undecryptables None For 3Com Wireless AP 8000 Wireless FCS errors None For 3Com Wireless AP 8000 Monitor Sub graph s Comments Utilization MIBII In and out octets In and out packets For links for which 3Com Netw...

Страница 394: ...Log data to disk check box Broadcasts RMON Broadcast and multicast packets For links for which 3Com Network Director uses RMON etherStats as a data source Link Discards In and out discard packets Errors MIBII In and out error packets For links for which 3Com Network Director uses the MIB II ifTable as a data source Errors RMON Fragments Jabbers CRC Align Undersize packets Oversize packets For link...

Страница 395: ...ted for each monitored device or link All databases are located in the 3Com Network Director install directory in a sub directory called logging e g C Program Files 3Com 3Com Network Director logging Located in this directory is a file called mapping txt This CSV file contains an entry for every device or link that has been monitored by 3Com Network Director now or in the past You can use this fil...

Страница 396: ... this link click the hotlink below the graph 6 Scroll down to the Errors graph at the daily resolution 7 Click the hyperlink to view the breakdown of errors This report breaks down error types into under and oversized packets fragments CRC errors and jabbers This will enable you to determine the cause of the high number of errors For example a high volume of fragments indicates a high utilization ...

Страница 397: ...perform further analysis Figure 196 Trend of Link Utilization In this example you can see that the link utilization is on an upwards trend and based on its current rate of growth you can expect the utilization rate to reach 80 within the next three months Based on this you may decide that this link will require upgrading Web server analysis You wish to see how your Web server is coping with demand...

Страница 398: ...acceptable but any increase in traffic would necessitate an upgrade To get an indication of whether the demand is likely to increase based on past performance scroll further down the report to the yearly graph of HTTP response time Figure 198 Yearly Graph of HTTP Response Time From this you can see that the demand on your Web server has been steady over the past two years and thus you may conclude...

Страница 399: ... 4e 0b d2 84 rrd 08 00 4e 0b d2 84 Links between switches hubs Filename Switch1 MAC address Switch2 MAC address Example 0 1 08 00 4e 0b d2 84 08 00 4e 2c 01 92 rrd 08 00 4e 0b d2 84 08 00 4e 2c 01 92 Links between a switch hub and an end station cloud Filename Switch MAC address U Switch link unit number P Switch link port number Example 0 1 08 00 4e 0b d2 84 U1 P4 rrd 08 00 4e 0b d2 84 U1 P4 The ...

Страница 400: ...MAC address of the switch or hub and on the unit and port that the link is connected to on that switch or hub This means if the end station is swapped out and replaced with a different end station the data is retained This is illustrated in the following scenarios An end station connected to a switch is replaced with another end station and connected to the same port Data for the link is retained ...

Страница 401: ...y run the following command from within the 3Com Network Director installation directory bin rrdtool dump logging 0 1 08 00 4e 0b d2 84 rrd RouterHistory xml Each round robin database contains several RRD data sources each containing data from a different monitor The following tables show the correspondences between monitors and RRD data sources Table 65 Table 66 Link Monitors Monitor Data source ...

Страница 402: ...ilization Out Octets OUT_OCTETS Utilization In Packets IN_PACKETS Utilization Out Packets OUT_PACKETS Broadcast Non unicast Packets NON_UCAST Broadcast Broadcast Packets BCAST Broadcast Multicast Packets MCAST Link Discards DISCARDS Link Discards In discards IN_DISCARDS Link Discards Out Discards OUT_DISCARDS Errors ERRORS Errors Fragments ERR_RUNTS Errors Jabbers ERR_JABBERS Errors CRC Align ERR_...

Страница 403: ...ile not updating If you have the mapping file opened in an editor or are reading it via a script this may cause the file to lock and 3Com Network Director may be unable to update it If this occurs you should unlock the file by closing the editor or exiting the script respectively Next time 3Com Network Director needs to update the file when you start monitoring a previously unmonitored device or l...

Страница 404: ... contain the value UNKN This indicates missing data There are several reasons why this might happen You may not have been monitoring the device link in question at the time The monitor corresponding to that data source may not be a valid monitor for the device or link For example if a monitored end station does not have an FTP server running on it the data source for FTP will never record any data...

Страница 405: ...ome common ones being A device has no IP address and so cannot be monitored A link has no port information at both ends and so cannot be monitored Further information on monitoring problems can be found in Problems Starting Monitoring for a Device or Link on page 315 ...

Страница 406: ...402 CHAPTER 9 PERFORMANCE REPORTING ...

Страница 407: ...troduction This chapter describes 3Com Network Director support for the RMON standard This chapter covers the following topics Key Concepts Components Examples Useful Information And References Key Considerations ...

Страница 408: ...The five most commonly used RMON groups are Statistics History Host HostTopN Matrix Statistics The Statistics group defines a standard by which a network device can make available information on current activity on each of its monitored interfaces and VLANs Gathered information includes transmitted and received packets transmitted and received bytes various types of errors received multicast packe...

Страница 409: ...group allows you to monitor the current activity of each individual device on your network It augments the Statistics view allowing you to drill down to identify which particular host is responsible for a more generalized problem HostTopN The HostTopN group presents the same data as the Host group but allows you to retrieve only the most active hosts in the group sorted by a specific data value of...

Страница 410: ...f information a table or tables containing the raw information itself indexed by the particular interface or VLAN to which it applies a control table allowing a management application to set up new data collections and to control how data is gathered Network devices normally have a number of tables configured by default on each interface so that a management station such as 3Com Network Director c...

Страница 411: ... on your network and presents this information in various flexible and useful ways For more information about RMON support on 3Com devices see Supported Devices on page 835 Where HC RMON is supported 3Com Network Director transparently gathers HC RMON information to give you an accurate picture of activity on high speed interfaces on the network 3Com Network Director does not offer support for RMO...

Страница 412: ...nu bar The following tables list each menu item for the menu bar and the associated operation invoked by selecting it File menu Table 68 lists each menu item for the File menu and the associated operation invoked by selecting it Table 68 File Menu Menu Item Hot Key Operation Print Graph Ctrl P Allows you to print the graph shown in the currently selected view ...

Страница 413: ...up the full width of the RMONView window Note that you can also resize the table and graph views by dragging the central window bar to the left or right with the mouse Graph and Table Resizes the widths of the table and graph views so that the graph and table views each take up half of the width of the RMONView window Note that you can also resize the table and graph views by dragging the central ...

Страница 414: ...oaded from the device but the display in the graph view is not refreshed until Resume Graphing is selected Resume Graphing Restarts the refreshing of data in the graph view after it has been paused updating the graph with any data that has been collected since it was paused Menu Item Hot Key Operation Display Graph Toggles the graph display on off within the graph view If a graph is currently bein...

Страница 415: ...olute Configures the graph to display the absolute values of the retrieved data Note that the table always displays the absolute values of the retrieved data This menu option is not available for history views Graphed Values Delta Configures the graph to display the delta values of the retrieved data Delta values display the difference between the last two data values retrieved and allow you to mo...

Страница 416: ...resses in the host and matrix views See Map Item Labels and Address Translation on page 175 Address Translation System Name Sets the address translation level used for all views in RMONView to System Name 3Com Network Director will attempt to display the system names corresponding to addresses in the host and matrix views See Map Item Labels and Address Translation on page 175 Address Translation ...

Страница 417: ...esses to vendor names where possible See Map Item Labels and Address Translation on page 175 Address Translation MAC Address Sets the address translation level used for all views in RMONView to MAC Address This is equivalent to selecting View Labels MAC Address in the 3Com Network Director main window when the Translate MACs option is disabled in the Tools Options dialog box 3Com Network Director ...

Страница 418: ...ach window is visible but only the contents of the currently selected view window can be seen Tile Resizes and arranges all of the views currently open in a tile format allowing the contents of all windows to be seen Note that the more open windows you have the smaller each window will be when you tile them When you have more than a few windows open this may result in the size of each window being...

Страница 419: ...iated with the button The majority of the operations provided by the toolbar buttons are equivalent to their corresponding menu items For more information see The Menu bar on page 408 Additional features not available through the main menu are described in Table 73 Table 73 Additional Features Menu Item Hot Key Operation Graph type drop down menu This allows you to select the style of graph displa...

Страница 420: ... many rows are displayed in the table for the currently selected view Figure 201 Table Control Dialog Box There are three ways to control the display of rows Wrap Table retrieves all of the rows from the RMON table corresponding to the view and displays only the last n rows retrieved where n is the number entered in the Rows Before Wrap field Progress bar The progress bar shows the data retrieval ...

Страница 421: ... shows data read from the device in graphical form The data shown in the graph varies depending on the chosen RMON view Viewing data from the RMON Statistics group The Statistics option is available through the top level RMON menu or the right click RMON menu against a single selected device or link on the map The option is only available if the RMON Statistics group is supported by a selected dev...

Страница 422: ...the selected device All interfaces on the device will be displayed The first entry in the interface selection list will be selected by default 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis for which you want to view statistics data ...

Страница 423: ...es The Statistics View dialog box with the interface list populated with the interfaces available on the chosen slot Viewing RMON statistics data for a selected link The menu presented when the current map selection is a single link lists the interfaces at each end of the link which support the RMON Statistics group ...

Страница 424: ...ted Link Selecting one of these menu options launches The Statistics View dialog box as shown on page 421 with the interface list populated with the interfaces available on the chosen device The interface associated with the chosen port will be selected by default ...

Страница 425: ...ialog box presents a list of the interfaces available on the device allowing you to choose the interface for which you want to view the associated data Whenever it can 3Com Network Director will pre select the interface in the list associated with your selection on the 3Com Network Director ...

Страница 426: ...string to be used to retrieve RMON data from the selected device View The selected View determines the data that will be displayed when the RMONView window is launched Clicking on Edit Create View allows you to select what data will be displayed in the view The supplied predefined views are Table 74 Predefined Views Clicking the OK button launches the RMONView window showing the RMON statistics da...

Страница 427: ...ew s Window menu Viewing data from the RMON History group The History option is available through the top level RMON menu or the right click RMON menu against a single selected device or link on the map The option is only available if the RMON History group is supported by a selected device or by one of the devices at the ends of a selected link Viewing RMON History data for a selected device To v...

Страница 428: ... on the device will be displayed The first entry in the interface selection list will be selected by default See History View dialog box on page 427 for further information 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis which you want to view history data for ...

Страница 429: ... box with the interface list populated with the interfaces associated with the chosen slot See History View dialog box on page 427 Viewing RMON history data for a selected link The menu presented when the current map selection is a single link lists the interfaces at each end of the link which support the RMON History group ...

Страница 430: ...ing one of these menu options launches the History View dialog box with the interface list populated with the interfaces available on the chosen device The interface associated with the chosen port will be selected by default See History View dialog box on page 427 ...

Страница 431: ...Components 427 History View dialog box Figure 210 History View Dialog Box ...

Страница 432: ...The Community field is initialized to the read write community string specified for the device in the 3Com Network Director Properties dialog box See Viewing Device Details on page 229 Clicking Edit launches the Edit Community dialog box which allows you to specify an alternative community string to be used to retrieve RMON data from the selected device View The selected View determines the data t...

Страница 433: ...historical information against an interface without having to have pre configured your own history table The History view cannot be launched without selecting an entry in the History Entries list Attempting to launch the History view by clicking OK on this dialog box when the History Entries list is empty does not launch the 3Com Network Director RMON window and instead shows the following message...

Страница 434: ...lete button is used to delete the currently selected entry in the History Entries list and the corresponding entry in the device s history control table History tables use resources on a network device and may affect its performance Try to avoid creating history tables on network devices unnecessarily and delete them from the device when you are finished with them See Managing RMON tables on page ...

Страница 435: ...ick RMON menu against a single selected device or link on the map The option is only available if the RMON Host group is supported by a selected device or by one of the devices at the ends of a selected link Viewing RMON Host data for a selected device To view RMON host data for a specific device select that device in the network map and click on the Host option on the RMON menu ...

Страница 436: ...nterfaces on the device will be displayed The first entry in the interface selection list will be selected by default See Host View dialog box on page 436 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis which you want to view host data for ...

Страница 437: ...h support the RMON Host group On 3Com devices the Host group is generally only supported on VLANs not on individual physical ports For more information about RMON support on 3Com devices see Supported Devices on page 835 If the port at either end of the link is a member of a single VLAN that VLAN will be indicated directly in the Host submenu Selecting this option will launch the Host View dialog ...

Страница 438: ...e 216 Host View Dialog Box with the VLAN Interface Preselected If the port at either end of the link is a member of multiple VLANs the port itself is listed in the Host submenu Figure 217 Port that is a Member of Multiple VLANs ...

Страница 439: ... Dialog Box This intermediate dialog box lists all VLANs on which the selected port is a member The dialog box allows you to select which VLAN on the device you want to view RMON Host data for Clicking OK launches the Host View dialog box with the interface associated with the selected VLAN preselected ...

Страница 440: ...436 CHAPTER 10 RMON Host View dialog box Figure 219 Host View Dialog Box ...

Страница 441: ...inute Community String The Community field is initialized to the read write community string specified for the device in the 3Com Network Director Properties dialog box See Viewing Device Details on page 229 Clicking Edit launches the Edit Community dialog box which allows you to specify an alternative community string to be used to retrieve RMON data from the selected device View The selected Vie...

Страница 442: ...e most active hosts sorted by any of the above rates The data is sorted and fetched from the device using the RMON HostTopN group Selected Stations Filters and sorts the hosts shown in the table to a specific set and ordering of MAC addresses When you select this option the Selected Stations list is enabled allowing selection of addition to and deletion from the displayed list of MAC addresses Wit...

Страница 443: ...select them in the dialog box and click Delete Removing existing tables should free up enough resources for 3Com Network Director to create its own new table Be careful when doing this the existing tables may currently be in use by other management stations on your network or by 3Com Network Director itself Clicking on the OK button launches the RMONView window showing the RMON host data associate...

Страница 444: ...nu against a single selected device or link on the map The option is only available if the RMON Matrix group is supported by a selected device or by one of the devices at the ends of a selected link Viewing RMON Matrix data for a selected device To view RMON matrix data for a specific device select that device in the network map and click on the Matrix option on the RMON menu ...

Страница 445: ...elected device All interfaces on the device will be displayed The first entry in the interface selection list will be selected by default 3Com Switch 4007 If the selected device is a 3Com Switch 4007 a separate submenu is presented allowing selection of the slot within the chassis for which you want to view matrix data ...

Страница 446: ...p selection is a single link lists the interfaces at each end of the link which support the RMON Matrix group On 3Com devices the Matrix group is generally only supported on VLANs not on individual physical ports For more information about RMON support on 3Com devices See Supported Devices on page 835 If the port at either end of the link is a member of a single VLAN that VLAN will be indicated di...

Страница 447: ...Components 443 Figure 224 Matrix View Dialog Box If the port at either end of the link is a member of multiple VLANs the port itself is listed in the Host submenu ...

Страница 448: ...aunches the Select VLAN dialog box shown below Figure 226 Select VLAN Dialog Box This intermediate dialog box lists all VLANs on which the selected port is a member The dialog box allows you to select which VLAN on the device you want to view RMON Matrix data for ...

Страница 449: ...ver it can 3Com Network Director will pre select the interface in the list associated with your selection on the 3Com Network Director map If you wish to change the selected interface or customize the data shown in the RMONView window you can do so using the above dialog box Update Rate Determines how frequently the selected device will be polled for RMON statistics data The rate can be specified ...

Страница 450: ... limit the displayed RMON matrix data to that associated with specific hosts on the network If the Stations list is empty data will be collected for all hosts seen by the device If the Stations list has at least one entry data shown will be only for conversations involving listed hosts Matrix Flow Determines whether to display the retrieved matrix data sorted by destination MAC address followed by...

Страница 451: ...data from the RMON matrixSDTable Clicking on the OK button launches the RMONView window showing the RMON matrix data associated with the selected interface on the selected device Figure 228 RMON Matrix Data Managing RMON tables If you try to launch RMONView Statistics Host or Matrix views against an interface on which these tables do not exist 3Com Network Director gives you the option of creating...

Страница 452: ... are insufficient resources on the target device to create the table If the table creation is successful RMONView will be launched automatically against the interface Deletion of RMON Tables The Manage RMON tables menu option allows you to manually create or delete RMON tables on the target device The option is available from the RMON menu on the menu bar or from the right click menu when a single...

Страница 453: ... respectively one or more of the checkboxes and clicking the Apply button The table or tables will be created or deleted on the specified interface The SNMP community string used by default is indicated in the Community field This is initialized to the read write community string specified in 3Com Network Director for the device You can change this if you wish See Viewing Device Details on page 22...

Страница 454: ... devices that support this table The RMON history group contains the same values stored historically for predefined sampling periods The RMON host and matrix groups allow you to see the same data broken down by specific hosts on the network If you know which interface on your core switch you are interested in launch RMON directly from the device icon on the 3Com Network Director map Alternatively ...

Страница 455: ... intervals chosen will be graphed How do I view the data associated with an aggregated link An aggregated link is a composite of more than one physical link 3Com devices do not in general gather data for the aggregated link as a whole Instead data is gathered against each component physical link If you select an aggregated link and 3Com Network Director has knowledge of the ports which comprise th...

Страница 456: ... online at the IETF web site http www ietf org RMON Support on individual 3Com devices For more information about RMON support on 3Com devices see Supported Devices on page 835 RMON Limits on individual devices for table creation Key Considerations You should try to delete RMON tables from a device when you no longer require them RMON tables take up resources on network devices and may affect the ...

Страница 457: ...s You can also obtain specific information you may require by creating custom reports Reports are generated in HTML format to allow viewing within a web browser You can export reports to CSV so that they can be imported into other tools such as Microsoft Excel or used in command line scripts You may view any report you have generated in the past by using the Reporting history feature The following...

Страница 458: ... Network Discovery Discovery Misconfigurations and Optimizations Changes Discovering the Network on page 91 Agent Update Agent Audit Agent Update Summary Upgrading Device Software on page 663 Bulk Configuration Configuration Summary Report Bulk Configuration on page 577 VLAN Configuration Create VLAN Summary Edit VLAN Summary VLAN Configuration Summary Vlan Management on page 499 Backup Backup Aud...

Страница 459: ...g mdb from this directory 4 Make a copy of the file called emptyLogging mdb and rename it to be called logging mdb The above instructions will delete all Device History information and Live Update Activity information from the current history log Custom Report Types Custom Report Types enable you to select the information you want to report on from all available report columns Reports History A fu...

Страница 460: ...port Reports are produced in HTML and may also be exported to CSV Reports use a simple form of sorting in that the first column is sorted alpha numerically For example a set of IP addresses would be sorted 10 0 0 1 10 0 0 11 10 0 0 12 10 0 0 13 10 0 0 2 and so on Inventory Report You can obtain an inventory of devices on your network using the Inventory Report For each device the Inventory Report ...

Страница 461: ...ology Report You can see all links showing each device to device connection in your network using the topology report This report lists the following details for the devices at each of the physical link ends IP address Device type Unit number Port number This report is launched from the Reports dialog box and is selection sensitive Free ports Report This report is accessible when a high utilizatio...

Страница 462: ...ls for each device IP address Device type Total number of ports on the device Total number of free ports on the device Devices that do not have any ports of the appropriate speed available are not included in the report If 3Com Network Director could not obtain the speed of the ports on a switch they will not be included in this report For reasons why this could occur refer to the capacity report ...

Страница 463: ...s report This panel displays the following Name the name of the report Description a brief overview of what will be reported Content describes what the report will contain This is devices links or Multiple which means that the report has multiple tables or components in it so its content cannot be summarized Columns lists the columns present in the table in this report If the report has multiple t...

Страница 464: ...swer No the report will be produced based on the current selection If Generate Report is clicked when there is no selection the report is automatically produced on all items in the current map file See Generate Report not Working on page 471 if you have problems generating a report Clicking Custom Report Types launches a dialog box where you can add edit and delete custom that is user defined repo...

Страница 465: ...b browser Click Save as CSV to display a standard file chooser dialog box prompting you for a file location to save the current selected report in CSV form Click Delete to display a dialog box asking for delete confirmation before it removes the generated report from the disk and this table See Disk Usage on page 470 for information on disk space usage by the Reports feature The CSV format used fo...

Страница 466: ...sting custom report types Delete custom report types The list shown in Figure 235 displays any custom report types already created It does not list any of the pre defined report types Figure 235 Custom Report Types The panel in this dialog box entitled Information included in this report works in the same way as the panel in the main Reports dialog box ...

Страница 467: ...ese generated reports or Save to CSV the new description will be used Add Edit Report Type Wizard From the Add Edit Report Type Wizard you can add and amend report types that detail information about the 3Com devices on your network The Add Edit Report Type Wizard can be launched from the Custom Report Types dialog box Columns Step The Columns step is the first step in the wizard as shown in Figur...

Страница 468: ...t so if you wish to sort the report by device name for example then ensure the Device Name column is first in the report The columns available for a report change depending on the selected Content either Node Details or Link Details Table 80 shows the available columns Table 80 Available Columns for Node Details Column Description Comment The comment associated with the device See Properties Dialo...

Страница 469: ...ed for 3Com devices If the agent version is not available N A is displayed in this column Subnet The subnet the device is on e g 104 204 1 0 255 255 255 0 sysContact The value of SNMP object sysContact for the device sysDescr The value of SNMP object sysDescr for the device sysLocation The value of SNMP object sysLocation for the device sysName The value of SNMP object sysName for the device sysOb...

Страница 470: ... mode The duplex mode of the link IP Address Both Ends Gives the IP addresses of the devices at either end of link Link Aggregation Whether link aggregation is enabled or disabled for the link Media Type The media type of the link for example Ethernet Port Both ends Gives port number that either end of link is connected to Registered Both Ends Whether or not the devices at either end have been reg...

Страница 471: ...Step The name and description appears in the report when it is generated They also display in the Reports dialog box in the Information included in this report panel when this custom report type is selected If you are editing an existing custom report type you cannot change the report name Summary Step The final step shows all the values you have chosen for your custom report type as shown in Figu...

Страница 472: ... in the chapter for the relevant feature See Feature Reports Types on page 454 for further details Assessing Network Expansion Capability You have a number of additional servers to add to your network and you want to find out if you have enough capacity in your network and to work out which 3Com devices to connect them to You can get an assessment of how much network capacity you have by charting ...

Страница 473: ...2 Choose to Place chart As new sheet and click Finish This gives you a graph showing at a glance how many ports you have free across your range of 3Com devices and where the servers could be best connected You can also use Excel s sorting feature to sort the table data by Ports Available for example Ensuring Stacks are Running the Same Agent Version 3Com recommends that all units in a stack are ru...

Страница 474: ...ation that appears in Reports is based on information held in the current map file If changes have occurred since the last discovery operation the report will contain out of date information The one exception to this is the Prioritization Configuration report which uses SNMP queries on your network devices to generate this report Disk Usage Generated reports are not aged or deleted automatically i...

Страница 475: ...t History feature to view it If you wish to use the HTML report outside of 3Com Network Director generate the report and select File Save As from your web browser to save the report to a location of your choice Generate Report not Working Sometimes when you click Generate Report in the Reports dialog box it can seem as if nothing is happening This may be because the map file is unusually large and...

Страница 476: ...472 CHAPTER 11 CREATING REPORTS ...

Страница 477: ...lnet Management launches your computer s Telnet application against a device selected in the network map Administration Menu contains integrated add on 3Com device management applications Registering Devices for Warranty enables you to register the 3Com devices on your network for any applicable warranty The following topics are covered in this chapter Key Concepts Components Examples Key Consider...

Страница 478: ...nage a single device or stack of devices at one time Access to the interface is protected by username and password authentication It typically provides the most complete range of configuration options For more information on the features provided by the Telnet interface please refer to the user documentation for your device SSH Management For devices which provide an SSH Secure SHell management in...

Страница 479: ... Manager provides management for the 3Com Network Jack NJ200 Although the NJ200 is bundled with a Local Configuration Manager and a Central Configuration Manager only the Central Configuration Manager is integrated with 3Com Network Director The Central Configuration Manager enables remote discovery advanced configuration and management of multiple NJ200s IP Ping IP Ping enables you to run the Win...

Страница 480: ... Start the ping command is run and its output is displayed in the Output window Trace Route The Trace Router feature enables you to run the Windows system tracert utility This utility lets you trace the router path from the management station to the device you re interested in If the device has more than one IP interface the Trace Route menu will contain submenus for each IP address the device has...

Страница 481: ...e text box with the command tracert and the IP address of the device you have selected The command line is provided so that you can specify additional command line options to the trace route command When you click Start the trace route command is run and it s output is displayed in the Output window ...

Страница 482: ...The details are split in to four tabs as follows General The General tab provides name and address information for your device as shown in Figure 241 The name of the device and all MAC and IP addresses associated with it are displayed in this tab You can change the name by editing the Name text field and clicking OK Figure 241 Properties General Tab ...

Страница 483: ...perties Security Tab The following two radio buttons are provided Defaults select this option to use the community strings 3Com Network Director is using by default on all other devices If this community string does not work 3Com Network Director will resort to using the factory defaults for devices of that device type ...

Страница 484: ...e additional permissions that read write access gives you Unit Information The Unit Information tab lists the various units in a stack The individual device types with hardware and software revision are shown in the table in Figure 243 Figure 243 Properties Unit Information Tab You can resize the columns in the unit information table by dragging the edges of the table headings You can also change ...

Страница 485: ... on the drop down list will list all VLANs associated with the device Each time you select a VLAN the table under the drop down list changes to show the ports that are members of that VLAN If a VLAN is being used for routing click VLAN Routing to launch a separate dialog box listing the subnets and routers that use that VLAN for routing as shown in Figure 245 ...

Страница 486: ...g If a VLAN is being used to constrain certain protocols the Protocol Details button is available Click Protocol Details to launch a dialog box that lists the network protocols that are associated with the VLAN as shown in Figure 246 Figure 246 Properties VLANs Tab VLAN Protocol Details ...

Страница 487: ...and hardware replacement Components The following sections describe how to administer devices using 3Com Network Director Device Warranty Dialog Box When a discovery operation completes and 3Com Network Director finds that there are unregistered devices you are given the option to register devices as shown in Figure 247 Figure 247 Device Warranty Dialog Box If you do not want to see this dialog bo...

Страница 488: ...to select the devices you want to register for any applicable warranty To launch the wizard Click Yes from the Device Warranty dialog box as shown in Figure 247 Or Select the Tools Device Warranty menu option Introduction Step The Introduction step describes the various stages of the wizard and provides a hyperlink to the 3Com Privacy Statement as shown in Figure 249 ...

Страница 489: ...n your default web browser By clicking Next you consent to the collection processing and use of the data submitted in the Device Warranty Wizard in accordance with the 3Com Privacy Statement Contact Details Step The Contact Details step allows you to enter your contact information as shown in Figure 250 ...

Страница 490: ...s and the Phone Extension number 3Com Network Director retains these details for the next time you run the Device Warranty Wizard This way you only have to enter your contact details once Partner Reseller Details Step The Partner Reseller Details step enables you to enter contact details for your preferred 3Com Partner Reseller as shown in Figure 251 ...

Страница 491: ...lds are only displayed if you select the My preferred 3Com Partner Reseller is option Name the company name of your preferred 3Com Partner Reseller E Mail the contact e mail for your preferred 3Com Partner Reseller Phone the contact phone number for your preferred 3Com Partner Reseller If you select the My preferred 3Com Partner Reseller is option the Name field cannot be left blank Just like your...

Страница 492: ...ist will contain one row for each chassis blade The Device Selection step contains the following columns Register Now when the check box in this column is selected the corresponding device will be registered for warranty De select the check box if you do not want this device to be registered Device Name the name of the device as it appears in the map If the row corresponds to a unit for a stack or...

Страница 493: ...s shown in Figure 253 Figure 253 Summary Step The Summary step provides a summary of the warranty registration information prior to sending it to 3Com If you consent to 3Com keeping you updated on its products you will receive 3Com product news If you selected I am registering on behalf of the individual named above in the Contact Details step of the wizard then the first I consent to option will ...

Страница 494: ...date Once the transmission is complete a confirmation message is displayed as shown in Figure 255 Figure 255 Confirmation Message 3Com will send you an email within 24 hours to confirm that your 3Com devices are now registered for any applicable warranty What Data is Sent to the 3Com server To register your 3Com devices 3Com Network Director will transmit some data to the 3Com server That data con...

Страница 495: ...om Report Types dialog box to launch the Add Report Type wizard 4 In the first step of the wizard include the Web management column in the report to be generated Click Next 5 In the second step of the wizard give the report a name and optionally a description Click Finish 6 Click OK to close the Custom Report Types dialog box 7 Run the custom report by clicking on its name in the Report Types colu...

Страница 496: ...ick Next to show the Summary dialog box and click Finish 6 Click OK to close the Custom Report Types dialog box 7 In the Report Types table click the name of the report you created and click on Generate Report to launch the report as shown in Figure 256 Figure 256 Device Warranty When you view the report you have generated the Registered column shows Yes if 3Com Network Director registered the pro...

Страница 497: ...set name new name 6 Type logout The Telnet console will close 7 Use Network Discovery to update the current map with the new name Disabling a Port on a Switch 4400 using the Web Interface You have a Switch 4400 on your network and you wish to disable a port on it using the web interface 1 Find the appropriate Switch 4400 device in the 3Com Network Director network map This can be done using the Fi...

Страница 498: ...be green in color Registering 3Com Devices for Warranty You have just bought several 3Com devices and installed them on your network You now want to register all these devices for warranty using 3Com Network Director 1 Launch the Options dialog box using Tools Options and make sure that in the General tab the Show the Device Warranty dialog box after a network discovery operation option is selecte...

Страница 499: ...Partner Reseller if any Alternatively If you have previously completed the wizard the contact details of your preferred 3Com Partner Reseller if any will be pre set so review the details and click Next 8 In the Device Selection step make sure that your new devices are included and that the Register Now check box is selected for those devices Click Next 9 In the Summary step make sure that the cont...

Страница 500: ...covery check box is selected If it is not selected click on the check box to select this option The other explanation for this is that there are no devices to register To check this 1 Select the Tools Device Warranty menu option 2 If all the devices on your network have already been registered a message as shown in Figure 258 is displayed Figure 258 Warning Message 3Com Network Director lists some...

Страница 501: ... devices that have already been registered for instance if you registered them on the 3Com website these devices will not be listed in the confirmation email Why is there no warranty associated with some of the devices in the email There are two explanations for this The product is not supported by 3Com anymore if the product has been discontinued there will be no warranty for that product The war...

Страница 502: ...498 CHAPTER 12 CONFIGURING SINGLE DEVICES ...

Страница 503: ...x is used to find and list all the members of a particular VLAN The Properties dialog box is used to view VLAN information for a particular device Reports can be generated detailing the VLANs configured on each device on the network Configuring VLANs on your network The Create VLAN wizard is used to create a new VLAN on selected devices and ports The Edit Port VLAN Membership wizard is used to edi...

Страница 504: ...r network without being restricted by physical connections a limitation of traditional network design For example with VLANs you can segment your network according to Departmental groups you can have one VLAN for the Marketing department another for the Finance department and another for the Development department Hierarchical groups you can have one VLAN for directors another for managers and ano...

Страница 505: ...on in VLAN Marketing for example is moved to a port in another part of the network and retains its original subnet membership you only need to specify that the new port is in VLAN Marketing You do not need to carry out any re cabling VLANs provide extra security Devices within each VLAN can only communicate with other devices in the same VLAN If a device in VLAN Marketing needs to communicate with...

Страница 506: ...e switch Several VLANs at the same time using 802 1Q tagging The standard specifies a tag format that embeds VLAN membership information within each packet in a 12 bit VLAN ID VID This allows traffic from multiple VLANs to be carried across one physical link The standard requires that you define the following information about each VLAN on your switch before the switch can use it to forward traffi...

Страница 507: ...ust be defined For example if multiple VLANs need to be carried over an inter switch link the ports at each end of the link should be defined to be tagged members of the VLANs When a port needs to be a member of multiple VLANs it can still be an untagged member of one of these VLANs but it has to be defined to be a tagged member of all other VLANs In a network where the VLANs are distributed among...

Страница 508: ...igured router or a Layer 3 switch Alternatively if the switch containing the VLANs is itself a Layer 3 switch and is configured correctly it will be able to route the traffic from one VLAN to the other internally In an IP environment communication between VLANs is achieved by defining VLAN based IP interfaces on a Layer 3 switch or router Commonly each VLAN corresponds to one IP subnet although it...

Страница 509: ...02 1Q tagged links the Layer 3 switch Switch D can tell Switches A B and C which VLAN the packets are destined for All switches at the end of the links receive traffic for all VLANs Traffic on each VLAN is switched at Layer 2 via Switch D and routed at Layer 3 to other VLANs via Switch D For example traffic from VLAN 1 on Switch A is switched to VLAN 1 on Switch B via Switch D Traffic from VLAN 1 ...

Страница 510: ...ces Primary and secondary IP interfaces determine how the switch processes broadcast and multicast traffic that arrives on a VLAN with multiple IP interfaces Take for example a broadcast packet arriving on VLAN 10 which has a primary interface of 158 101 68 254 255 255 255 0 and a secondary of 158 101 69 254 255 255 255 0 If the source address of the packet was on the 158 101 69 0 network the agen...

Страница 511: ...ch 4007 s or Corebuilder 3500 s on your network 3Com Network Director does not support the creation or modification of protocol based VLANs using the Create VLAN and Edit Port VLAN Membership wizards Spanning Tree The IEEE Spanning Tree Protocol STP standard 802 1D 1998 Edition does not take into account VLANs when it calculates STP information the calculations are only performed on the basis of p...

Страница 512: ...ector VLAN Concepts Discovering VLANs in 3Com Network Director When you perform a network discovery 3Com Network Director will retrieve the following information from each supported switch the textual description of the VLAN the 802 1Q VLAN ID the ports on the device that are tagged members of the VLAN the ports on the device that are untagged members of the VLAN any Layer 3 information associated...

Страница 513: ... with exactly one VLAN configured and all ports using untagged traffic for that VLAN i e factory default switches with all ports on the default VLAN A VLAN aware item is any device that does not conform to one of the above rules If a port is a member of a VLAN then 3Com Network Director will infer that all VLAN unaware devices hanging off that port are also members of the same VLAN For example con...

Страница 514: ...so be highlighted not just the Switch 3300 The rules used for inferring VLAN membership for VLAN unaware devices are as follows If a port on a VLAN aware device is a member of VLAN A and all devices hanging off the port are VLAN unaware then these devices will be assumed to be members of VLAN A as well When working out the bounds of the set of VLAN unaware devices 3Com Network Director will stop w...

Страница 515: ...same as a VLAN on another switch if they have the same VLAN ID and are connected by a link that has the VLAN configured on the ports at each end These rules are intentionally simple to ensure that the user can easily deduce how 3Com Network Director has presented their network Rather than attempting to second guess what the user may have intended 3Com Network Director presents any inconsistencies ...

Страница 516: ...se the links are tagged 3Com Network Director will be able to deduce that the VLANs with ID 2 on each of the three switches are the same Similarly with VLAN ID 3 However the user has not used consistent names when creating the VLANs 3Com Network Director will pick one of the three names for VLAN ID 2 to represent the VLAN in the 3Com Network Director user interface For example 3Com Network Directo...

Страница 517: ...VLAN ID 2 admin VLAN ID 3 Accounts ID 4 Accounts ID 5 Accounts ID 6 Although this network configuration would work it is good practice to use VLAN IDs consistently Hence 3Com Network Director would log an entry in the Misconfigurations Report for this network See Inconsistent VLAN IDs on page 535 Restrictions on VLAN support in 3Com Network Director Older 3Com switches e g the Switch 1000 and Swit...

Страница 518: ...ctor Components This section covers the main components of the VLAN support in 3Com Network Director namely VLAN display The Show VLANs toolbar The Find dialog box The Options dialog box The Properties dialog box The VLAN Configuration report The Misconfigurations report The Changes report VLAN configuration The Create VLAN wizard The Edit Port VLAN Membership wizard Show VLANs The Show VLANs func...

Страница 519: ...the VLANs from the list results in the members of that VLAN being highlighted on the map For example Figure 268 Show VLANs All devices and links that are not members of the VLAN are grayed out The VLANs tab in the Options dialog box can be used to control whether ...

Страница 520: ... to subnet B On a large network that has a lot of VLANs defined the best way to view the VLANs on the map is to first remove the grouping of devices by subnet by unchecking the View Group Map by Subnet menu option and then launch the Show VLANs toolbar Filter View button The Filter View button on the Show VLANs toolbar behaves as follows If the button is depressed the map view grays all devices th...

Страница 521: ...ap contains no VLAN information The Show VLANs toolbar will not be displayed This can occur for several reasons The map was originally created using a version of 3Com Network Supervisor earlier than v3 5 There are in fact no VLANs configured on the network at all For example if the network contains only VLAN unaware devices such as hubs and traditional routers The only VLANs on the network are con...

Страница 522: ...VLAN configured with inconsistent names on multiple switches It is good practice to use the same VLAN name when configuring a VLAN on multiple switches However if a consistent name has not been used when configuring a VLAN on multiple switches 3Com Network Director will choose one of the names to refer to the VLAN For example with the network below 3Com Network Director would have to choose betwee...

Страница 523: ...rations and Optimizations report warning the user of this fact See Inconsistent VLAN naming on page 535 This Misconfigurations and Optimizations report entry will also inform the user of the name that 3Com Network Director has selected to use to refer to the VLAN in the rest of the application Multiple discrete VLANs with the same VLAN ID but different VLAN names If the VLAN lists contain only one...

Страница 524: ...the textual description will include the VLAN name See VLAN IDs on page 523 for more information Find Dialog Box The Find dialog box allows you to find all the members of a particular VLAN First launch the Find dialog box using the Edit Find menu option Then select the type of item you wish to search for in the Find drop down menu You can search for Devices Links or NBX telephony components that a...

Страница 525: ...d e g in the figure above only the Switch 4007 would be listed not the end station a Generic IP device or any items which 3Com Network Director has inferred are members of the VLAN are also highlighted e g in the figure above 3Com Network Director has inferred that an end station is also a member of the VLAN Options Dialog Box The way that VLANs are listed and displayed in the Show VLANs toolbar a...

Страница 526: ...522 CHAPTER 13 VLAN MANAGEMENT Figure 272 Options Dialog Box VLANs Tab ...

Страница 527: ...bar would result in all of the discrete VLANs using VLAN ID 4 being highlighted on the map With the check box unchecked selecting one of the 10 entries for VLAN ID 4 would have resulted in only one of the discrete VLANs being highlighted VLAN membership The radio buttons in this section allow you to control how the VLAN membership is displayed when a VLAN is selected in the Show VLANs toolbar or t...

Страница 528: ...ent format for each of the following VLAN aware switches See VLAN membership inference on page 509 Switches with only one VLAN configured i e factory default switches VLAN unaware devices including hubs end stations traditional routers etc Device for which no VLAN information is available Links VLANs tab for VLAN aware switches See VLAN membership inference on page 509 for a definition of VLAN awa...

Страница 529: ...In this case the Ports in VLAN text field changes to say Ports in VLAN None and table below is disabled The columns in the Ports in VLAN table are Table 83 Ports in VLAN table Column Description Unit The unit or slot blade number Port The port number of the port that is a member of the selected VLAN If an aggregated link is a member of the VLAN the ports in the aggregation are not listed and inste...

Страница 530: ... VLAN Protocol Details dialog box one row for each IP interface Figure 274 Protocol Details Button For non IP protocols only the Protocol column is completed with the name of the protocol Connected to If there is a link connecting the port to something else the name of the device cloud submap at the far end of the link is displayed in this column If the port is not connected the field is left blan...

Страница 531: ...N Routing button The VLAN Routing button will be enabled if 3Com Network Director has been able to determine which if any devices are performing IP routing for the selected VLAN Clicking the VLAN Routing button launches the VLAN Routing dialog box ...

Страница 532: ...es defined on the router for the current VLAN In some situations the VLAN Routing button will be disabled for a VLAN If the VLAN is a non IP protocol based VLAN The VLAN Routing button only relates to IP routing If the VLAN is being routed by a non 3Com Layer 3 switch 3Com Network Director does not discover VLANs configured on non 3Com switches If the VLAN membership inference has for some reason ...

Страница 533: ...previous case where the switch had VLANs explicitly configured Figure 277 Switch with Only One Configured VLAN The top section is similar to the VLANs tab for a VLAN aware switch in that it shows the VLANs configured on the switch in this case only one The combo box in the bottom section lists those VLANs that 3Com Network Director has inferred that this switch is a member of See VLAN membership i...

Страница 534: ...ed if 3Com Network Director has been able to determine which devices are performing IP routing for the selected VLAN VLANs tab for VLAN unaware devices This applies to devices such as end stations hubs phones 3rd party devices etc The VLANs tab in this case contains the same information as the bottom part of the VLANs tab for VLAN unaware switches described above Figure 278 VLANs Tab for VLAN Unaw...

Страница 535: ...sage is displayed in the VLANs tab on the Properties dialog box Figure 279 VLANs Tab This may occur if The device is a traditional router and does not use VLANs 3Com Network Director will not attempt to infer any VLAN membership of such a device There are in fact no VLANs explicitly configured on the network at all The only VLANs on the network are configured on non 3Com switches 3Com Network Dire...

Страница 536: ... one or both ends of the link see below For each end of the link there is a table that lists the VLANs explicitly configured on the port s at that end of the link The table does not list any inferred VLAN membership The table also shows whether the port is tagged for each of the listed VLANs Figure 280 VLANs Tab for a Link ...

Страница 537: ... dialog box 4 Click the Generate Report button You are then presented with a dialog box allowing you to choose whether to generate the report for the selected switches or for the whole map Figure 281 Generate Report Dialog Box For each switch with more than one VLAN configured the report lists details for each VLAN configured on the switch The VLAN name The VLAN ID Any L3 protocol information conf...

Страница 538: ... not displayed in the VLAN Configuration report The report will be empty if there are no VLAN aware devices on the map or within the current selection depending on the option chosen Misconfigurations and Optimizations Report After discovering all the devices and links on your network 3Com Network Director checks for any misconfigurations or potential optimizations If there are any these are report...

Страница 539: ...o use the same VLAN name when configuring a VLAN on multiple switches However if a consistent VLAN name has not been used 3Com Network Director will detect this and report a misconfiguration For example in the network below the VLAN with ID 2 has been created with inconsistent names Engineering and Eng 3Com Network Director would report this and indicate which of the names will be used to refer to...

Страница 540: ...ed after you rediscover the devices on your network will list any changes in the VLAN configuration of these devices since they were last discovered See Changes Report on page 536 for more details on the Changes Report The Changes Report will not list any VLAN configuration changes that have been made using the 3Com Network Director Create VLAN or Edit Port VLAN Membership functionality See Create...

Страница 541: ...router to reach the device on the other VLAN This path is unlikely to be the same as the physical path between the two devices For further information see the Trace Path section onpage 188 Create VLAN wizard The Create VLAN wizard guides you through the process of creating a brand new VLAN on your network Launching the wizard Before launching the wizard you should select those links and devices on...

Страница 542: ...86 Entering the New VLAN Name and ID In the VLAN name field enter a textual description for the new VLAN Once the VLAN is created this is the name that 3Com Network Director will use to refer to the VLAN This value can be up to 32 characters long The VLAN ID field will be pre filled with the first unused 802 1Q VLAN ID For example if the switches in your network map were using VLAN IDs 1 2 3 and 4...

Страница 543: ...g rules are used to decide which switch ports are listed in this dialog box For each switch in the initial map selection all ports connected to other switches in the map selection are listed For each non switch in the map selection 3Com Network Director will find the nearest switch port to the non switch and add this switch and port to the list For each link in the map selection if either of the d...

Страница 544: ...ed or an untagged member of the new VLAN See Tagged and untagged VLAN membership on page 503 By default 3Com Network Director assumes that inter switch ports will be tagged ports connected to non switches will be untagged So in the example above 3Com Network Director would assume that the port on the Switch 1100 connected to the Hub should be untagged To modify the switches and switch ports listed...

Страница 545: ...g icon will be shown behind the tick The Add Port Tagged and Add Port Untagged buttons can be used to add additional ports to the selection or to change the tagging state of a port that has already been added to the selection The Add Ports by Type button launches the Add Ports by Type dialog box which can be used to select multiple ports at once based on various criteria see Figure 290 on page 542...

Страница 546: ...Figure 290 Add Ports by Type dialog box Additional switches can be added to the tree using the Add Device button This launches the Find dialog box that lets you search for devices based on various criteria see Finding Items on Your Network on page 192 Once you have selected all the switches and ports required you can save this selection for use at a later stage using the Save As button You can use...

Страница 547: ... switches e g end stations Switch ports that are currently unconnected Again 3Com Network Director will warn you if have selected ports of these types to be tagged but will not prevent you from proceeding with this selection Checking VLAN connectivity When you click the Next button in the previous wizard stage 3Com Network Director will check that there are no gaps in the list of selected switches...

Страница 548: ...to the other switches in the VLAN 3Com Network Director will not search beyond clouds in the map when trying to locate the nearest suitable Layer 3 switch If you are adding a VLAN to a set of devices where there is no path in the map from the devices to a Layer 3 switch 3Com Network Director will be unable to determine which switch ports would need to be added to the VLAN in order to connect a Lay...

Страница 549: ...next wizard stage Figure 293 Specifying Additional Ports to Include in a VLAN It is very important that you check this list of additional ports In some situations the ports suggested by 3Com Network Director may be incorrect the algorithm 3Com Network Director uses to determine whether additional ports are required is dependent upon the topology of your network map being accurate If the topology o...

Страница 550: ...w VLAN will not exceed the VLAN limit of any of the switches to be configured For example the 3Com Switch 3300 supports up to 16 VLANs See Reference B on page 575 If the VLAN limit of any switch will be exceeded an error message box will be shown and you will be prevented from continuing Configuring unsupported devices 3Com Network Director will automatically create VLANs on supported switches see...

Страница 551: ...ports on page 553 You can either manually configure these unsupported devices at this point in the wizard or wait until 3Com Network Director has automatically created the VLAN on all the supported devices before manually configuring the unsupported devices If you choose to manually configure the unsupported devices at this point in the wizard you can use the Launch button to launch the Telnet or ...

Страница 552: ...fy an IP Routing Interface To add a new IP routing interface select the Yes radio button in the wizard stage above and then click the Add IP Interface button This launches the Add IP Interface dialog box Figure 296 Adding a New IP Routing Interface ...

Страница 553: ... be created from the drop down menu and then enter a unique IP address and a subnet mask Some 3Com Layer 3 switches allow you to create multiple IP interfaces per VLAN and as a result have the concept of primary and secondary IP interfaces see Primary and Secondary IP interfaces on page 506 for details If your Layer 3 switch supports this the drop down menu at the bottom of the dialog box can be u...

Страница 554: ...anges to be made The final wizard stage displays a summary of the devices that are to be configured to create the new VLAN It lists The name and 802 1Q ID of the new VLAN Any IP interfaces that are to be created for the new VLAN Which ports will be automatically configured to be tagged members of the new VLAN Which ports will be automatically configured to be untagged members of the new VLAN Which...

Страница 555: ...e at a time If 3Com Network Director fails to create the VLAN on a switch for whatever reason 3Com Network Director will stop the configuration process and will not attempt to create the VLAN on any other switches An error dialog box will be displayed from which you can launch the Create VLAN Summary report detailing the error that occurred and those switches that were successfully configured if a...

Страница 556: ...he creation of the VLAN was unsuccessful 3Com Network Director will create a warning severity event in the event system The More Detail dialog box for these events allows you to launch the Create VLAN Summary report for that particular operation For more information on working with events see The Event Log on page 319 Edit Port VLAN Membership wizard The Edit Port VLAN Membership wizard guides you...

Страница 557: ...are the same as those for the corresponding stage in the Create VLAN wizard namely For each switch in the initial map selection all ports connected to other switches in the map selection are listed For each non switch in the map selection 3Com Network Director will find the nearest switch port to the non switch and add this switch and port to the list For each link in the map selection if either o...

Страница 558: ...st appears the drop down menu at the top will be pre selected with the VLAN on which the selected ports are currently transmitting untagged packets In the example above all the selected ports are all transmitting untagged packets on Default VLAN VLAN ID 1 If the selected ports are currently transmitting untagged packets on different VLANs the drop down menu selection will say mixed If the selected...

Страница 559: ...till proceed with your selection Tagged VLANs When the wizard stage first appears the list box in the centre of the dialog box will display those VLANs on which the selected ports are currently transmitting tagged packets These VLANs are indicated by a checked check box In the example above the selected ports are currently transmitting tagged packets on VLANs account ID 2 and engineering ID 3 If t...

Страница 560: ...ctor will assume that the following types of switch port should always be untagged Switch ports connected to devices that are not switches e g end stations 3Com Network Director assumes if a device is not a switch it will not be able to process VLAN tagged packets Switch ports that are currently unconnected 3Com Network Director assumes that it if these ports are connected in the future then it is...

Страница 561: ...ticular VLAN e g Accounts ID 3 then the selected ports will be configured such that they now transmit untagged packets on this VLAN If some ports were previously transmitting untagged packets on a different VLAN these ports will be removed from this VLAN If some ports were already transmitting untagged packets on the selected VLAN these ports will not be modified If the untagged combo box selectio...

Страница 562: ...cked when the wizard completes all the selected ports that were tagged members of the VLAN before the wizard was launched will be removed from the VLAN If you add a port to a VLAN untagged or tagged and the VLAN does not currently exist on that switch then 3Com Network Director will create the VLAN on the switch This means that this wizard is not simply adding ports to a VLAN it will sometimes hav...

Страница 563: ...ry of the VLAN changes that are to be made It lists The ports that will be automatically configured Any changes to the untagged VLAN membership of the ports Any untagged additions to a VLAN Any untagged removals from a VLAN Any changes to the tagged VLAN membership of the ports Any tagged additions to a VLAN Any tagged removals from a VLAN Any ports that will have to be manually configured For exa...

Страница 564: ...guration of your network If this occurs then you should rediscover your network You can speed up this rediscovery process by limiting the rediscovery to only those subnets and devices for which VLAN configuration was being performed Before attempting to modify the VLANs on the selected ports 3Com Network Director checks the current configuration of each switch to make sure it matches the data held...

Страница 565: ...n which a particular VLAN is configured To list all of the switches on which a particular VLAN is configured 1 Launch the Options dialog box from the Tools Options menu option and select the VLANs tab 2 Select the Include only configured devices radio button if it is not already selected This ensures that only switches on which the VLAN is configured will be found by the Find dialog box 3 Launch t...

Страница 566: ...d the switches that the VLAN is configured on you can launch the Properties dialog and select the VLANs tab From here you can view per device information about the VLAN such as which ports it is configured on as tagged or untagged Reporting the VLAN configuration of all switches on the network If you wish to generate a report detailing the VLAN configuration of all the switches on your network you...

Страница 567: ...Components 563 Figure 305 Selecting the Link to the End Station on the Map ...

Страница 568: ...hip wizard Then in the first stage of the wizard you would click the Change Selection button and then select the port from the launched Selection Editor dialog box In the second wizard panel you would change the untagged VLAN from Default VLAN ID 1 to accounts ID 2 This assumes that the accounts VLAN is an existing VLAN on your network Before Figure 306 Network Before ...

Страница 569: ...e situation where you wish to extend your existing VLANs to include one or more new inter switch links For example you have VLANs with IDs 2 6 10 12 configured on all of your inter switch links You wish to add a new switch to your network and you therefore have to configure all of these VLANs on the link connecting this switch to the network In the network shown in Figure 308 the new switch is 140...

Страница 570: ...nfigured You would click Next at this wizard stage as no additional ports need to be added The next wizard stage would initially display the VLANs currently configured on the two switch ports This would likely be just the default VLAN ID 1 To specify that the ports should also become tagged members of the VLANs with IDs 2 6 10 12 you would check the corresponding check boxes in the list in the cen...

Страница 571: ...zard Stage Clicking Next would take you to the Summary stage box listing all of the changes that are about to be applied Figure 310 The Summary Wizard Stage Clicking Finish would then apply the VLAN membership changes to the two switch ports ...

Страница 572: ...ork 7 When the search has completed select an item from within the results list and press Ctrl A to select all items in the list 8 Close the Find dialog box 9 Select the Device VLAN Create a VLAN menu option to launch the Create VLAN wizard 10 In the VLAN Name and ID step enter a suitable name and ID for the VLAN 11 Click Next to move through the wizard steps If there are any additional switches a...

Страница 573: ...wizard you will need to enable tagging on the phone and NBX call processor ports To enable tagging click Change Selection in the Edit Ports step of the wizard to launch the Selection Editor dialog box locate and select all of the ports currently selected as untagged members of the VLAN click Add Port Tagged to change the ports to tagged members of the VLAN and click OK to close the dialog box Usef...

Страница 574: ... cases 3Com Network Director may get this inferred VLAN membership wrong For example If there is an inconsistent VLAN IDs misconfiguration then the VLAN membership that 3Com Network Director infers might not be as expected See section Inconsistent VLAN IDs on page 535 for further information If there are non 3Com switches on which a VLAN is configured the membership of this VLAN may not be correct...

Страница 575: ...here subnet 140 204 232 0 and 192 168 152 0 The Switch 4007 is a Layer 3 switch routing between the two subnets If subnet 140 204 232 0 was discovered first and then the 192 168 152 0 subnet was discovered in a second network discovery operation 3Com Network Director would incorrectly display the network topology as follows ...

Страница 576: ...the topology of such networks correctly In general 3Com switches only support one Spanning Tree domain Problems with apparent network loops In order for 3Com Network Director to construct its map of the network it reads the Bridge Forwarding Table from each of the switches on the network This table tells 3Com Network Director which ports on a switch have learned which MAC addresses After gathering...

Страница 577: ...or each MAC address and ignores all other ports that it has been learned on So in the above example pick port 1 and ignore port 24 However this may result in 3Com Network Director building a network map that is not completely accurate In this situation 3Com Network Director adds the following warning to the Discovery Report See The Discovery Report on page 131 A device has been seen or learned on ...

Страница 578: ...s report VLAN configuration consists of The Create VLAN wizard The Edit Port VLAN Membership wizard Table 85 VLAN configuration and Display by Device Type Device Type VLAN Display VLAN Configuration Switch 610 630 yes yes Switch 1100 3300 yes yes Switch 4200 yes yes Switch 4300 yes yes Switch 4400 yes yes Switch 49xx yes yes Switch 4050 4060 4070 yes yes Switch 4005 yes yes Switch 4007 yes yes Swi...

Страница 579: ...ub 500 no no OC hub 8 TPM no no OC switch 140M no no RAS 1500 no no Device Type Maximum Number of VLANs 3Com SuperStack II Switch 610 16 3Com SuperStack II Switch 630 16 3Com SuperStack II SuperStack 3 Switch 1100 family 60 3Com SuperStack II SuperStack 3 Switch 3300 family 60 3Com SuperStack 3 Switch 4400 family 60 3Com SuperStack 3 Switch 4900 family 30 3Com Switch 4050 4060 4070 30 3Com Switch ...

Страница 580: ...9000 and modules 127 3Com Switch 7700 3Com Switch 7700R 4094 3Com CoreBuilder Switch 3500 and modules 64 3Com SuperStack II Switch 3900 9300 family 127 3Com SuperStack 3 Switch 3200 family 254 3Com SuperStack 3 Switch 3800 family 254 Device Type 3Com SuperStack 3 Switch 4900 family 3Com Switch 4050 4060 4070 3Com CoreBuilder Switch 3500 and modules 3Com Switch 4007 and modules 3Com CoreBuilder 900...

Страница 581: ...ork Select a group of devices or ports to apply a configuration to Issue a configuration change to one or more supported devices of the same or different types in a single operation A single configuration may be applied to multiple devices of different types However 3Com Network Director will only allow a configuration template to be applied to devices that the configuration is applicable to accor...

Страница 582: ...ll of them as required Note that 3Com Network Director will only attempt to set the specified values for each enabled attribute on the selected devices or ports at the point the configuration template is applied and not whilst creating or editing the template There are different types of configuration template and the attributes that are available in each are dependent on the type of device or por...

Страница 583: ...ices by default unless selected by one of the previous two points The currently selected devices or ports can be viewed and modified using the Selection Editor dialog box as explained in Selection Editor Dialog Box on page 584 A device or port selection can be saved for reuse at a later date This allows for the creation of device or port groups that potentially need to be configured together on a ...

Страница 584: ...ts to configure Start a configuration operation to apply the configuration template to a device or port selection Launch the Configuration Editor dialog box by choosing either the Switch Devices or Switch Ports option from the Device Configure submenu Figure 314 Configuration Editor Dialog Box The dialog box represents the contents of a configuration template using a number of feature based config...

Страница 585: ...contain one or more supported devices If the map does not contain any supported devices then an error will be displayed to indicate the problem Configuration Summary Tree Features The following table shows the set of features contained in the 3Com Network Director Switch Device configuration template Table 88 Switch Device configuration template The following table shows the set of features contai...

Страница 586: ...ee Feature Configuration Panels on page 582 for information on how to enable attributes within a feature The appearance of a yellow warning triangle against a feature name in the configuration summary tree indicates that the current settings in the associated feature panel are invalid Navigate to the corresponding feature panel by selecting the associated entry in the tree for a detailed explanati...

Страница 587: ...summary tree Also a warning dialog box will be displayed to indicate the problem when an attempt is made to navigate to the feature configuration panel from another panel or when an attempt is made to save the configuration template or when an attempt is made to apply the configuration template Note that it will be possible to continue editing further features and to save the configuration templat...

Страница 588: ...aded by selecting the Open button beneath the configuration summary tree Use the file chooser dialog box to locate the configuration template to be opened It is only possible to load configuration templates that are appropriate for the type of device or port chosen to be configured For example if the Configuration Editor dialog box was launched from the Device Configure Switch Devices menu option ...

Страница 589: ...ection will be displayed in the Selection Contents tree on the left of the Selection Editor dialog box By default this will initially be based on the devices end stations and or links currently selected in the map according to the type of configuration template that the selection applies to as follows For device based configuration templates the selection will contain all devices that are selected...

Страница 590: ... available on each unit Note that all ports available on the units will be shown in the tree regardless of whether they are selected or not However to differentiate between them selected ports will be shown in black with a green tick next to them and unselected ports will be shown in grey with no tick Ports may be added to the selection by highlighting the desired ports in the tree and then clicki...

Страница 591: ...ighlight the devices in the tree that contain the ports to be added Then click the Add by Type button which will display the Add Ports by Type dialog box shown in Figure 317 above Now choose the type of ports to add to the selection by clicking on the appropriate type followed by the OK button The dialog box will now be dismissed and all ports belonging to the highlighted devices that match the ch...

Страница 592: ...hooser dialog to locate the device or port selection to open Saved selections are independent of both the map and the configuration templates and can therefore be reused in conjunction with different map files and different configuration templates However if a selection is loaded that contains a device that is not present in the current map then the missing device will be highlighted when the sele...

Страница 593: ...Selection Editor Dialog Box on page 584 for details of viewing and editing the current selection If the current selection has already been reviewed or the choice has been made not to the Schedule Configuration dialog box will be displayed as shown in Figure 318 Figure 318 Schedule Configuration Dialog Box This dialog box gives the choice of starting the operation immediately or scheduling it to st...

Страница 594: ...e 319 Configuration Progress Dialog Box The Configuration Progress dialog box shows the progress of the overall operation in the upper progress bar and the progress of the operation in configuring the current device in the lower progress bar ...

Страница 595: ...nfiguration Summary report is automatically generated The report can be viewed from the Configuration Summary dialog box that is shown at the end of the operation It is strongly recommended that the summary report for a configuration operation is always reviewed as the report may contain important information about the changes that were made Device Status Configuration Stage Pending The configurat...

Страница 596: ...s that were encountered while configuring that feature on the selected devices or ports Device Configuration Panels Configuring User Accounts The user accounts feature allows control of access to the management interface of the network devices Figure 320 User Accounts Panel The user accounts table will only be applied as part of the configuration template if the associated checkbox is checked The ...

Страница 597: ...ccount will only be applied to those devices which contain that default user account by default Consequently if it is necessary to configure a user account that has the same username as a default user account across all selected devices including those devices which do not contain this user account by default then a new entry will have to be created in the table with the same username as the defau...

Страница 598: ...de setting will only be applied as part of the configuration template if the associated checkbox is checked The setting specifies how user access attempts should be verified by the device and be set to one of Password Public Key or Both This feature configuration panel will be considered invalid if the Secure Shell Authentication Mode is both enabled and its value is set to Public Key and the User...

Страница 599: ...choosing Add and selecting the key file from the file chooser dialog box An associated SSH client public key can be removed from a user account by selecting the name of the file that the key was imported from in the public keys list and choosing Remove Edit User Account Dialog Box The Edit User Account dialog box allows the editing of an existing user account from the user accounts table If the us...

Страница 600: ...ows the user to enable or disable management access to the device through SNMP Telnet Web Secure Shell SSH and the console port Select the setting for each access level and access method from the associated drop down list 3Com Network Director does not allow the user to disable SNMP access for the security access level as this would prevent 3Com Network Director from carrying out any further confi...

Страница 601: ...ed trusted IP host address are shown on the right of the panel In a new configuration template the list contains a single default entry containing the IP address of the 3Com Network Director management station with a subnet mask of 255 255 255 255 Trusted IP addresses can be added to the list one at a time using the Add button to launch the Add Trusted Address dialog box A maximum of sixteen entri...

Страница 602: ...IP addresses as the configuration template allow to be entered The bulk configuration operation adds trusted IP addresses to the network devices in the order they are shown in the list in the event that not all trusted IP addresses can be added to a device a warning will be given in the summary report for the operation Add Trusted IP Address Dialog Box Figure 324 Add Trusted IP Address Dialog Box ...

Страница 603: ...tings for the authentication server accounting server and timeout parameters can be applied independently of one another if desired If either the authentication server or accounting server are to be configured then information must be provided for both a primary and a backup server For each server the following must be specified IP address the port on which the RADIUS service is available and the ...

Страница 604: ...DIUS servers feature restrictions Configuring System Information The System Information feature allows the configuration of the basic device summary information that the devices make available to network management applications Parameter Restriction IP Address The IP address of a RADIUS server The same address cannot be entered for both a primary and a backup authentication or accounting server Ho...

Страница 605: ...d Alternatively the system name parameter can be chosen to match the DNS name of each device or to match the name currently shown in the map for each device The strings to use for the location and contact parameters must be explicitly specified The System Information feature limits the length of any strings entered to a maximum of 30 characters Configuring Trap Destinations The Trap Destination fe...

Страница 606: ...be empty New trap destination entries can be added to the list one at a time by clicking the Add button A maximum of eight entries can be added to the table The IP address community string and owner string for any of the entries in the list can be modified by selecting the desired entry in the list and clicking the Edit button Parameter Description IP Address The IP address of the device to which ...

Страница 607: ...ies that have been created by 3Com management if the associated checkbox has been checked in the feature configuration panel As a result it may not be possible for the bulk configuration operation to add all of the trap destinations specified to every device The bulk configuration operation adds trap destinations to the devices in the order they are shown in the list in the event that not all trap...

Страница 608: ...an be set for the following parameters Table 94 Spanning Tree Parameter Restrictions Parameter Restriction Spanning Tree Mode The Spanning Tree mode can be one of Rapid Spanning Tree Spanning Tree or Disabled Bridge Priority The Bridge Priority must be in the range 0 61440 in steps of 4096 if the Spanning Tree mode is set to Rapid Spanning Tree or 0 65535 if the Spanning Tree mode is set to Spanni...

Страница 609: ...rning STP parameters Configuring IGMP The IGMP feature allows the user to control the way in which the devices handle incoming IGMP traffic Figure 330 IGMP Panel The settings for each of the IGMP parameters will only be applied as part of the configuration template if the associated checkbox is checked The value for each of the IGMP parameters can be set to either Enabled or Disabled Configuring B...

Страница 610: ...The packet rate limit setting will only be applied as part of the configuration template if the broadcast storm control check box is checked and the broadcast storm control value is set to Enabled The packet rate limit value must be in the range 0 262143 Port Configuration Panels Configuring Port Security The Port Security feature allows control of user access to the network through the ports on t...

Страница 611: ...automatic learning full security network login network login secure or network login with NBX Intrusion Action The action to be taken by the device when an unauthorized attempt is made to access the network through the port can be no action disable port or disable port temporarily 20 seconds The value for this parameter can only be set when the secure mode is set to a value other than No security ...

Страница 612: ...he port path cost value can be specified to be determined dynamically by the device or specified explicitly by entering the path cost value into the edit field provided Note that the path cost edit field will only be enabled when the Custom option is selected from the path cost drop down list box The port path cost value must be in the range 1 1000 Configuring Port Administration The Port Administ...

Страница 613: ...ministration parameters will only be applied as part of the configuration template if the associated checkbox is checked Configuring Autonegotiation The Autonegotiation feature allows the configuration of autonegotiation duplex mode port speed and flow control for the ports on the devices ...

Страница 614: ...restrictions on the values which can be set for the following parameters Table 96 Autonegotiation Parameter Restrictions This configuration feature panel will be considered invalid if the advertised capabilities list box is enabled and the Flow Control option is selected but no Full Duplex entries are selected Parameter Restriction Mode The mode of operation for the port can be one of auto 10HD 10...

Страница 615: ... should automatically attempt to join link aggregations between the network devices using the Link Aggregation Control Protocol Figure 336 LACP Panel The settings for each of the LACP parameters will only be applied as part of the configuration template if the associated checkbox is checked ...

Страница 616: ...e first changeover take place outside of work hours to avoid disrupting any routine network maintenance To do this 1 Ensure that all of the devices on the network are present in the current map If necessary run a network discovery See Launching a discovery on page 106 2 Launch the Configuration Editor dialog box using the Switch Devices option from the Device Configure menu 3 Select the User Accou...

Страница 617: ... network specialists that require access to the network devices create a new account in the user accounts table by clicking the Add button Enter an appropriate user password and community in the relevant fields of the Add Account dialog box and click OK Many 3Com devices keep an audit log of all management user sessions providing a record of a variety of changes to their configuration By creating ...

Страница 618: ...ame option and without entering any text into the search field click Find Highlight the devices that are to be configured and click the OK button to add them to the selection of devices to be configured 7 Click OK in the Selection Editor dialog box and then click OK in the Configuration Editor dialog box to schedule the bulk configuration of the selected devices 8 In the Schedule Configuration dia...

Страница 619: ...om Switch 4400 devices to authenticate users in this area prior to allowing them access to the company network Primary and backup RADIUS authentication and accounting servers have already been set up to provide the necessary authentication service and now it is necessary to configure the network switches to implement network login To do this the switches must first be configured with the details o...

Страница 620: ...4400 devices that provide the network connections for the new hot desking area Click OK to add the devices to the selection of devices to be configured It is possible to save the selection of devices to allow the application of another configuration to the same devices at a later date 6 Click OK in the Selection Editor dialog box and then click OK in the Configuration Editor dialog box to run the ...

Страница 621: ...g box to launch the Selection Editor dialog box and click the Add Device button in the Selection Editor box to launch the Find Device dialog box Select the Find by type option and select the Switch 4400 device type from the drop down list and click Find Highlight the Switch 4400 devices that provide the network connections for the new hot desking area and click OK to add the devices to the selecti...

Страница 622: ...Click the Save As button from the Selection Editor dialog box and save the current port selection with a suitable filename for example Hot desk ports The selection will be ready for re use should the need arise to make further changes to the ports these users are connected to 8 Click OK in the Selection Editor dialog box and then click OK in the Configuration Editor dialog box to run the bulk conf...

Страница 623: ...ase ensure that the latest service pack available has been downloaded and installed using Live Update See Live Update on page 811 for more information If the service pack release notes identify the device as being supported but the device is still shown as unsupported in the Selection Editor dialog box then the current map may be out of date 3Com recommend that a fresh discovery is run on the netw...

Страница 624: ...h 4005 User Guide for details of how to configure the non default user account Switch 4300 Switch features System information Trap destinations Spanning tree2 IGMP Port features Spanning tree2 Administration3 Autonegotiation Switch 4400 Family Switch features User accounts4 Secure Shell SSH 4 Access rights Trusted IP4 RADIUS servers4 System information Trap destinations Spanning tree IGMP Broadcas...

Страница 625: ...nt changes to the software configuration of the devices on the network It is possible to severely disrupt the operation of the network through accidental misuse of this feature It is strongly recommended that you seriously consider the impact to your network of any configuration changes that you wish to make before starting a bulk configuration operation ...

Страница 626: ...622 CHAPTER 14 BULK CONFIGURATION ...

Страница 627: ...ant traffic on a configured device flows quicker than other traffic and is less likely to be dropped in times of congestion Prioritizing network traffic also enables you to ban certain types of network traffic such as games traffic or connections to streaming media servers This is called blocking If a configured device sees traffic that has been blocked the blocked traffic is prevented from being ...

Страница 628: ...the particular traffic type that classification identified There are three actions that can be performed marking queuing and dropping Classification Classification identifies different types of traffic by examining the contents of a packet or set of packets For example a packet received by a device can be identified as traffic to and from your database server if the destination or source IP addres...

Страница 629: ...er device may not be able to There are two standards that specify how a complex classification device can modify packets in a straightforward manner so that a simple classification device can still identify how important those packets are This modification of packets is known as marking and the two standards are IEEE 8 02 1D defines an extended MAC header known as a tagged header which contains a ...

Страница 630: ... classify Whilst it is possible to use different marking schemes at different locations in the network 3Com recommends that if possible one is selected and used throughout the network Packets sent across the network must first pass through a complex classification device such as a 3Com SuperStack 3 Switch 4400 so that they can be marked appropriately This enables simple classification devices to p...

Страница 631: ...been defined as having a similar level of importance 3 If a particular queue fills up with packets then any further packets for that queue will be dropped until the queue is serviced This will clear some of the packets from the queue 4 Packets are taken off the queues and transmitted out of the port according to the particular queue servicing mechanism that is in place A device may support one or ...

Страница 632: ...smitted in preference to the bronze ones In the particular queue servicing mechanism used here it does not immediately transmit all of the silver packets after the gold instead it allows some bronze packets to be transmitted so that even the lowest priority traffic can receive some amount of bandwidth Figure 344 Queue Servicing Mechanism If these queuing operations are performed on all devices in ...

Страница 633: ...cal traffic Voice traffic The CEO s traffic Blocked traffic All other traffic Each of these service levels could perform different queuing and marking of the packets assigned to them The service level for blocked traffic would not need to perform queuing or marking as traffic assigned to it would be dropped The device can then be configured with a set of classification rules which are mapped to th...

Страница 634: ...on devices it is necessary to apply configurations in such a way that the markings applied by the complex classification devices are treated appropriately by the simple classification devices In the previous example it was possible to specify that each service level marked its traffic with a DiffServ codepoint assuming that the device in question was a complex classification device The DiffServ co...

Страница 635: ...ifiers dropping queuing and marking The Prioritize Network Traffic Wizard is launched from Tools Prioritize Network Traffic The wizard allows you to select Servers that traffic should be prioritized to and from Servers whose traffic transmitted or received should be blocked on your network Applications whose traffic you would like to prioritize Applications whose traffic should be blocked on your ...

Страница 636: ... participate in the prioritization of network traffic Whilst the Prioritize Network Traffic Wizard configures devices to mark the user priority field as well as the DiffServ codepoint it does not configure devices to use the tagged MAC headers However if VLANs have been configured on some or all of the ports on the configured devices then the appropriate user priority data will be added to the pac...

Страница 637: ...type when you have added a large number of devices of a particular type to your network and you wish to configure them to participate in a previously configured end to end traffic prioritization Custom Configuration allows you to choose which of the supported 3Com devices in your network that the wizard should apply the selected configuration to 3Com recommends that you only use this configuration...

Страница 638: ...or configures devices that are capable of performing complex application classification to identify traffic as NBX phone traffic by creating classifier rules See 3Com Network Director Classifier Rules for NBX Phone Traffic on page 654 for definitions of the classifier rules used for NBX phone traffic by 3Com Network Director Traffic that matches these classifier rules is also mapped to the Voice s...

Страница 639: ...ifier rules that match packets with either the destination or source IP address respectively set to the IP address of the server Traffic that matches these classifier rules is mapped to the Business Critical service level See 3Com Network Director Service Levels on page 655 for definitions of the service levels used by 3Com Network Director When you are configuring devices that are not capable of ...

Страница 640: ...affic belonging to that application These classifier rules specify the values that certain fields with a packet must have in order for that packet to be considered as belonging to the application Figure 347 Prioritize Network Traffic Wizard Applications When a device is configured with the classifier rules for a particular application only one of the rules needs to match a packet in order for the ...

Страница 641: ...capable of both complex application classification and of dropping traffic as a result of classification in order to drop application traffic 3Com Network Director configures such devices to identify traffic as belonging to an application by creating classifier rules These classifier rules are equivalent to the classifier rules that make up the definition in the wizard Traffic that matches these c...

Страница 642: ...ting However the configuration may then result in an inconsistent configuration across your network and so traffic may not receive end to end traffic prioritization As a result it is recommended that you do not cancel the configuration once it has started Prioritization Reports The following reports are produced through the traffic prioritization feature Agent Upgrades Required for Prioritization ...

Страница 643: ...gured The devices in the network that the wizard failed to configure 3Com Network Director reports a reason for each failure Detailed information about the configuration applied to the devices including any restrictions as to what the devices will do in terms of prioritization and blocking Prioritization Configuration Report If you wish to view the details of the configurations in terms of classif...

Страница 644: ... it may take several minutes to run Examples The following section details useful examples of traffic prioritization configuration Applying an Existing Configuration to New Devices You have just upgraded the core of your network to an XRN core and wish to configure the XRN devices to participate in the end to end prioritization configuration that you have previously applied to your network To do t...

Страница 645: ...alls made using the system are of high quality even when the network is congested To do this 1 Ensure the NBX network call processor has been discovered by 3Com Network Director and is present in the map See NBX Phone Detection on page 95 for more information on how to do this 2 Launch the Prioritize Network Traffic Wizard using Tools Prioritize Network Traffic 3 In the Introduction step select Ne...

Страница 646: ...oticed that during periods of network congestion several of your users have had difficulties accessing your SAP server As this is having an impact on your business you wish to prioritize traffic to and from the server to prevent these difficulties from arising 1 In the Introduction step select Next The wizard will analyze your network and display the Configuration Type step as shown in Figure 349 ...

Страница 647: ...n in Figure 352 enabling you to add the SAP server Figure 352 Add Server Prioritizing Traffic To and From a SAP Server Example 5 Type the name of the SAP server or the function that it performs into the Name field and type either the DNS name or the IP address of the server into the DNS name IP address field Select OK to add the server and return to the Setup Servers step ...

Страница 648: ...the streaming audio server 1 In the Introduction step click Next The wizard will analyze your network and display the Configuration Type step as shown in Figure 350 2 Select the Network wide configuration radio button and click Next to show the Servers step shown in Figure 350 3 To add the streaming audio server to the list of servers click Setup Servers from the Servers step to display the Setup ...

Страница 649: ...us conferences like this have been affected by network congestion causing intermittent loss of video and audio You decide to prioritize the traffic belonging to the video conferencing application to prevent similar disruption to this conference You have determined that your video conferencing software uses UDP port 2001 for audio UPD port 2002 for video and UDP port 2003 for signaling 1 In the Int...

Страница 650: ...eo Conferencing Application Example 4 To add the video conferencing application to the list of applications select Setup Applications from the Applications step to display the Setup Applications dialog in Figure 353 5 Click Add to display the Add Application dialog as shown in Figure 354 ...

Страница 651: ...in the Name field 7 To add each of the classifiers to the application click Add to display the Add Classifier dialog as shown in Figure 355 Figure 355 Add Classifier Prioritizing a Video Conferencing Application Example 8 Select the appropriate type and enter the appropriate value in this case UDP and 2001 respectively Click OK to return to the Add Application dialog ...

Страница 652: ...you may wish to resolve the resource warning before proceeding Refer to Resource Warnings on page 657 for more information 14 When you reach the Configuration Summary step click Finish to apply the updated configuration to the supported 3Com devices in the map Restricting Access to SNMP For security purposes you wish to restrict the use of SNMP in your network to the PCs used by the network manage...

Страница 653: ... Setup Servers from the Servers step to display the Setup Servers dialog in Figure 357 Figure 357 Setup Servers Restricting Access to SNMP Example 4 In the Setup Servers dialog click Add to display the Add Server dialog in Figure 358 enabling you to add the first network manager s PC ...

Страница 654: ...o add the PC and return to the Setup Servers screen If you have entered a DNS name then 3Com Network Director will resolve the DNS name to an IP address for you 6 Repeat steps 4 and 5 to add in the other network managers PCs 7 Click OK in the Setup Servers step to return to the Servers step where the network managers PCs are now listed in the Normal list 8 Select all of the network managers PCs fr...

Страница 655: ...arning dialog that is displayed 10 Click Next to display the next step of the wizard If the Resource Warning screen is displayed then you may wish to resolve the resource warning before proceeding Refer to Resource Warnings on page 657 for more information 11 When you reach the Configuration Summary step click Finish to apply the updated configuration to the supported 3Com devices in the map ...

Страница 656: ... 101 User Priority As the table shows the default value is 0 This allows some traffic to be marked as less important than normal traffic The tagged header that the user priority field relies upon can be used in any packet in place of the normal 802 1D header However the tagged header is only normally used for packets if VLANs are being used within the network This means that if VLANs are not being...

Страница 657: ... 102 RFC Definitions All of these RFCs are freely available from the IETF website http www ietf org The RFCs listed in Table 102 do not include all of the RFCs relevant to DiffServ Additional RFCs can be located on the Differentiated Services Working Group s page on the IETF website As the DiffServ codepoint field is only present in IP packets this restricts the use of this marking mechanism to IP...

Страница 658: ... type values can be found on the IEEE website http www ieee org Similarly as IANA Internet Assigned Number Authority are responsible for allocating TCP and UDP port numbers a list of known TCP and UDP port numbers can be found on the IANA website http www iana org The IANA website also contains a list of the known IP protocol numbers 3Com Network Director Classifier Rules for NBX Phone Traffic Whe...

Страница 659: ...assifiers created for applications or servers that have been selected for blocking are mapped to the Drop service level All other traffic is left unclassified and is treated with the Default service level This service level does not perform any remarking and sends all packets to queue 0 Low Configuration Levels for Supported 3Com Devices The Prioritize Network Traffic Wizard configures devices bas...

Страница 660: ...ed to drop traffic to and from servers selected for blocking if it is listed as supporting Classify Servers Similarly a device will only be configured to drop traffic for applications selected for blocking it if is listed as supporting Classify Applications Device Type Agent Version Classify Servers Classify Applications Drop Traffic Number of Queues Mark 802 1p Mark DSCP SuperStack 3 Switch 4200 ...

Страница 661: ...evices to match the configuration exactly as the configuration may require more resources than are available on some or all of the selected devices On some devices the classification functionality may differ depending on the agent version running on that device Similarly it is not possible to configure a device to exactly match a configuration that requires a certain level of classification functi...

Страница 662: ...ll devices that are affected by this problem Details of the problem If the problem is resource related then the percentage resource requirements of each server and application selected for prioritization or blocking will be shown The reduced configuration that will be applied if the problem is not resolved In many cases the reduced configuration will be equivalent to treating the affected devices ...

Страница 663: ...acted are able to resolve the DNS name It is not possible to contact any of the configured DNS servers while you were adding servers It is only possible to contact some of the configured DNS servers while you were adding servers and none of the DNS servers that can be contacted are able to resolve the DNS name If it was not possible to contact a DNS server when 3Com Network Director was started bu...

Страница 664: ...er you have blocked One way to check this is to run the Prioritization Configuration report from the Reports dialog box which is launched by selecting Tools Reports and examining the contents of the report for blocked servers If you accidently block an IP address then you can rectify this problem by re running the Prioritize Network Traffic Wizard and removing the server from the list of servers t...

Страница 665: ... example above it would be better in this case to specify the classifier rule of TCP port 123 assuming that the application uses TCP port 123 as this would only match and so only block TCP IP traffic using port 123 rather than all TCP IP traffic The application definition while still being narrow may include rules that will incorrectly classify other applications as belonging to the application yo...

Страница 666: ...ther instances may have been configured to use other protocols and ports Potential Hazards of Blocking SNMP HTTP and Telnet The protocols SNMP HTTP and Telnet are all used for network management purposes 3Com Network Director uses SNMP to configure its devices and in some cases can use HTTP and Telnet for device discovery and configuration HTTP and Telnet protocols are also used for manual configu...

Страница 667: ...se the Agent Update feature to Upgrade all supported 3Com devices on your network to the latest agent software you have available Find 3Com devices on your network that are running out of date agent software Import agent software from files on disk that may have been downloaded from 3Com Upgrade or downgrade the agent software on individual 3Com devices This chapter covers the following topics Key...

Страница 668: ...date operation stops the internal TFTP Server once the operation has completed TFTP is an insecure file transfer protocol that requires no username or password Therefore 3Com Network Director places restrictions on any requests in order to prevent any unauthorized TFTP activity The internal TFTP Server incorporates the following safeguards TFTP requests are accepted only from the IP address of the...

Страница 669: ...Agent Update Wizard outlines the agent update process summarizing the choices covered by the wizard as shown in Figure 360 This step also allows you to import a new agent that may have been downloaded from the 3Com website or provided on a product CD To import an agent click Agent Import to launch the Agent Import dialog box This dialog box lets you select an agent image file to import Figure 360 ...

Страница 670: ... that meet the following criteria Supported by Agent Update Not running the latest version of available agent software already If this option is selected you can schedule when to perform the operation by selecting Next from the Update Type screen See Scheduling Step on page 668 for further information Update all devices of the following type updates all devices that match the device type selected ...

Страница 671: ...port agents for any device using a similar mechanism to that used in the Introduction step This option is the default if any devices were selected when launching the wizard If Next is selected with this option chosen the Specify Devices and Agent Versions step will display listing the devices that are selected Some or all of the following steps now display depending on the option you selected in t...

Страница 672: ...he 3Com family name of the listed device Units specifies the number of units in a stack or distributed fabric Current specifies the current version of agent software running on the device The Current column displays a comma separated list of versions if the device has multiple units or modules that are currently running different agent software versions New specifies the latest version of the agen...

Страница 673: ...the selected device using the Agent Import tool Figure 363 Agent Update Wizard Change Version To add a new version to the list click Have Disk which will launch an Add Agent file dialog box This lets you specify an agent image file to use If the file selected is a valid agent file it will be added to the agent version database and if it is applicable to the currently selected device on the Agent U...

Страница 674: ...ate Wizard Scheduling If Later is selected the time selection is enabled and you can choose any time in the next week to schedule the operation The time field is in 12 hour format so remember to set to am pm Once an Agent Update operation has been scheduled the basic details for the operation can be seen in the Scheduled Tasks dialog box launched from Tools Scheduled Tasks To cancel the operation ...

Страница 675: ...s selected on the Update Type step then the list will contain all devices and variants of the selected type that were found in the map If the Custom option was selected the list should contain those devices selected on the Specify Devices and Agent Versions step Devices can also be removed from the list by 3Com Network Director for the following reasons The device is not supported any unsupported ...

Страница 676: ...gent Update Wizard Progress Dialog Box The updates are performed one at a time with the lower of the two progress bars showing the progress of the current device and the top progress bar showing the progress of the entire operation The list of devices shows the current status of each device as it updates There are three main stages of each update These are Preparing device Verifying the device pro...

Страница 677: ... agent version that is running on the device For devices that could not be updated the detail of the alarm message describes what went wrong and suggests possible resolutions to the problem Agent Update Reports The following reports are produced by Agent Update Agent Update Summary report When an Agent Update operation completes the Agent Update Summary report is automatically generated You can ch...

Страница 678: ...ally Examples The following section details some useful examples of how to use Agent Update Update all Switch 4400 s with a New Agent You have a new agent release for the Switch 4400 You want to update all Switch 4400 devices on the network to the new agent version this evening To do this 1 Select Agent Import from the Device Agent Import menu 2 In the Agent Import dialog box locate the agent imag...

Страница 679: ...ice on the network You want to see if anything has changed recently and if so undo the changes To do this 1 Launch the Reports dialog box by selecting the Tools Reports menu 2 From the Report Types list box select the Device History report and then click Generate Report to generate and launch the report 3 You read the report and notice that the device in question was recently upgraded to a beta ve...

Страница 680: ... convention that helps you to identify the device family that the agent can be applied to Some types of device will reject attempts to update them using agent files that do not follow the naming scheme For this reason 3Com recommends that you do not rename your agent files Table 107 shows the agent filename format for the device families supported by Agent Update Table 107 Agent Filename Format by...

Страница 681: ... can be overwritten with significantly older software Troubleshooting Device Problems Following Agent Update If you find that your device is no longer responding following an attempt to update the agent the problem could be caused by one of the following conditions There are network problems preventing you from contacting the device The device has not yet returned to an operational state following...

Страница 682: ...or will not accept TFTP requests once the Agent Update operation has completed To recover from this situation you can either use the serial update utility as detailed in the release notes for your device or you can run a standalone TFTP server on your management station that will service the device requests Repeated Timeouts If your attempts to upgrade a device repeatedly fail and the Agent Update...

Страница 683: ... controls the timeout in seconds for TFTP packets sent by the internal TFTP server Increment the value to increase the TFTP timeout 4 Look for an integer value surrounded by the following tags RETRIES RETRIES This value controls the number of times a single TFTP packet transmission is retried by the internal TFTP server Increment the value to increase the number of TFTP retries 5 Restart 3Com Netw...

Страница 684: ...680 CHAPTER 16 UPGRADING DEVICE SOFTWARE ...

Страница 685: ...ters servers and end stations are distributed over multiple sites which may be geographically separated by large distances but are still intended to function together as a single usually private network Connectivity between the individual sites of a multi site network can take many forms but usually consists of either dedicated private WAN links such as PPP links or virtual private links running o...

Страница 686: ...ms with time sensitive data such as VoIP traffic Due to their monetary cost WAN links are often utilized at near to their full capacity Additional traffic directed to such WAN links can result in the links becoming less reliable than normal with the routers at either end dropping some of the packets destined for the link This can potentially disrupt the performance of the applications in your netw...

Страница 687: ...en the local and remote site This increased utilization may increase the latency of the WAN links and if the increase causes the WAN links to become oversubscribed may result in the routers at either end of these links discarding packets that are destined for the links See Monitoring Techniques on page 276 for more details of active monitoring 3Com Network Director provides the following features ...

Страница 688: ...ctor to monitor and manage that site Configurable Retries If a request sent by 3Com Network Director times out then this may be due to either the request or the response being dropped while traversing the network As a result 3Com Network Director cannot immediately conclude that a device is not responding if it fails to respond to a request To cope with this situation 3Com Network Director uses th...

Страница 689: ...result in higher latency on these links and may even lead to the links becoming oversubscribed To avoid this situation 3Com Network Director allows you to control the rate at which actively monitored devices are polled By decreasing the poll rate you can reduce the amount of traffic generated by active monitoring See Monitoring Techniques on page 276 for more details of active monitoring and Monit...

Страница 690: ...nges that you wish to discover restricting the discovery to certain device types and configuring the number of retries and timeout periods to use All of these options can be used to reduce the amount of traffic that a Network Discovery generates and to allow the discovery process to complete successfully even in situations where there are unreliable WAN links in the routes to the remote sites For ...

Страница 691: ...hich if any of the active interfaces on the router are WAN interfaces The supported interface types are listed in Supported WAN Interface Types on page 748 3Com Network Director then creates links from each of these interfaces to a single Default WAN cloud in the map as shown below Figure 367 Default WAN cloud 3Com Network Director does not perform any topology analysis on the WAN segments of your...

Страница 692: ...ked to any other map items If this is the case then you may delete the cloud from the map without affecting the displayed WAN topology by selecting it in the map and then selecting Edit Delete If you have not made any manual changes to the layout of your map then you may wish to relayout the map as the altered WAN topology may improve the automatic layout To relayout your map automatically select ...

Страница 693: ...to point connection connects to f Close the Set Port dialog box by clicking OK g Repeat this process in the To Port frame h Close the Properties dialog box by clicking OK A cloud will be automatically added to the middle of the link between the two routers 3Com Network Director automatically separates WAN links into two using clouds to allow more detailed monitoring to be performed on WAN links Se...

Страница 694: ...re logically connected to each other b Select their links to the Default WAN cloud Ensure that nothing else is selected in the map c Select Edit Delete and confirm the deletion Note that any of these links may represent more than one WAN interface If that is the case then deleting the link will remove the map representation of all of those WAN interfaces See Restoring WAN Interface Representations...

Страница 695: ...that contain the WAN interfaces that are logically connected to each other and the cloud that is being used to represent the logical group You may find that there are logical connections between the logical groups you have created For example you may have created two logical groupings to represent two different ISPs that you use for Internet connectivity If you wish to represent this connectivity ...

Страница 696: ...Rediscovery 3Com Network Director assumes that manual modifications made to the WAN topology accurately reflect the real WAN topology of your network As a result subsequent network discoveries will not alter the topology you have put in place for the existing WAN interfaces in the map However any new WAN interfaces discovered during subsequent network discoveries will be linked into the single Def...

Страница 697: ...onitors See Setting Thresholds for Monitor Based Events on page 356 for details of how to do this In addition to setting the thresholds for WAN link monitors you can also configure the speed used to calculate values for the utilization monitor This allows you to configure the speed of a WAN link to represent any service level agreement or policy you may have in place for that WAN link For example ...

Страница 698: ...ing a router at a remote site to monitor a WAN link then disabling individual monitors can reduce the traffic generated by the monitoring process However disabling monitors will also reduce the amount of information that is available to you about the state of the WAN link Configuration Configuring Retries and Timeout Periods Depending upon the speed and utilization of the WAN links in use communic...

Страница 699: ...ubnet Unless you explicitly override the settings at the device level devices within the subnet will use the settings you specify here Device The Retry Timeout tab in the Properties dialog box for a device allows you to override the whole map and if applicable subnet settings for a particular device and so configure the number of retries and timeout periods for requests sent to that device Unless ...

Страница 700: ...ine the names of discovered IP devices See DNS Name Resolution on page 95 for more details If one or more of the DNS servers that are listed are located at remote sites where the paths to those sites include high latency or unreliable WAN links then you may wish to increase the timeout period or number of retries respectively Increasing the number of retries or the timeout period in the DNS Values...

Страница 701: ...quests are used to discover monitor and manage devices that do not have SNMP capabilities such as NBX telephony systems End station requests End station requests are used during the End Station Type Recognition stage of Network Discovery See End Station Type Recognition on page 94 for more details of this Network Discovery stage Changes made in the Retry Timeout tab of the Tools Options dialog box...

Страница 702: ... the number of retries and timeout periods for the subnet If you choose to override the settings configured at the whole map level for a particular subnet then you must configure appropriate settings for all of the request types listed for the subnet Numbers of retries and timeout periods can be configured for undiscovered subnets in this manner too The settings configured for an undiscovered subn...

Страница 703: ...tions dialog box In order to change the number of retries and timeout periods for a device you will need to uncheck the Use defaults from option after which you can set the number of retries and timeout periods for the device At the device level the Retry Timeout tab of the Properties dialog box only allows you to change the number of retries and timeout period for the type of requests that 3Com N...

Страница 704: ...e whole map configuration may not be suitable for a successful discovery of these sites As a result you may wish to change the timeout periods or numbers of retries respectively for the subnets that correspond to the remote sites that you are discovering The numbers of retries and timeout periods can only be altered during a Network Discovery if you choose the Specify subnets option in the Discove...

Страница 705: ...age the devices in a discovered subnet will use the numbers of retries and timeout periods that were specified for that subnet in the Network Discovery wizard Similarly the numbers of retries and timeout periods configured for a subnet in the map will be used for rediscoveries of that subnet provided the Network Discovery wizard was launched with the subnet selected Determining Appropriate Retry a...

Страница 706: ...on your network over time and under different network conditions and then use these to determine appropriate values For example the responsiveness of a site to IP ping requests may be measured by sending IP ping requests to a selection of important devices located at that site at regular intervals such as every 5 minutes over some period such as a working week and recording the results Any samples...

Страница 707: ...n NBX call processor on a particular subnet then you may wish to specify a timeout period for HTTP telnet requests on that subnet that is lower than 30000 ms In such situations it is recommended that you do not specify a timeout period less than 6000 ms 3Com Network Director can generate historical reports on devices in your network These reports will include IP Ping response times and for DNS ser...

Страница 708: ...termine one site to treat as the home of the subnet In the example given above this would likely be the local site The numbers of retries and timeout periods for the subnet should be configured appropriate for the site that you select as the home of the subnet Having done this you will then need to override the subnet settings for each device that is on that subnet but that is not located at the l...

Страница 709: ...n Reduce the poll rates This has the effect of reducing the total amount of requests that will be made across the WAN link but at the cost of the accuracy of the monitoring information For example by reducing the poll rate for a device from once every 30 seconds to once every minute you will halve the amount of traffic generated by the monitoring of that device However you will double the amount o...

Страница 710: ...e and there are one or more monitors that you are not interested in then you can disable those monitors Doing so will stop 3Com Network Director from retrieving the data for those monitors and so will reduce the amount of traffic generated across the WAN link by each poll for that device but at the cost of the detail of the monitoring information For example if you are not interested in the errors...

Страница 711: ...re you can do this you will need to determine suitable monitoring modes and poll rates for the devices in your network The exact settings for your network will depend upon your individual monitoring requirements However the following pointers may be used to guide your decision Where possible use either the response monitoring for remote devices While response monitoring still polls remote devices ...

Страница 712: ...r a link between two remote devices at least one of the devices must be monitored in full monitoring mode If you only wished to monitor the devices in response monitoring mode then you can still approximate this behavior by selecting one of the devices to use for monitoring the link monitor this using full monitoring mode and then disable any monitors on the device other than the IP Ping Service m...

Страница 713: ...rates are configured in 3Com Network Director using the same hierarchy as the Retry Timeout settings As a result the things to bear in mind when configuring monitoring modes and poll rates in a multi site network are similar to those encountered when configuring the Retry Timeout hierarchy Before starting to configure the monitoring modes and poll rates hierarchy it is important to correctly ident...

Страница 714: ...hey are members of As a result in order to configure the correct settings for all devices at a site you will need to apply the settings not only to each subnet that covers that site but also to each router and layer 3 switch that is located at that site If you have determined that the appropriate monitoring modes and poll rates for a large number of remote sites are identical then it may be quicke...

Страница 715: ...riate use of monitoring modes in a multi site network is discussed in Configuring Monitoring Modes and Poll Rates on page 705 The remaining two options allow you to filter which devices are discovered by the network discovery process by restricting the Network Discovery process to certain important subnets ranges on those subnets that contain important devices and devices of a specific type Contro...

Страница 716: ...ting the discovery on those subnets to particular IP address ranges you will reduce the traffic overheads of the Network Discovery process and so decrease the likelihood that it will have a noticeable impact upon the performance of your WAN links Speeds up the Network Discovery process The length of time that it takes a Network Discovery to complete depends upon various factors including the size ...

Страница 717: ... inter site communications on your network by allowing you to schedule discoveries to take place during quiet periods on your network such as overnight Note that as with monitoring poll rates the more frequently you rediscover your network the more requests 3Com Network Director will make to the devices on your network It is important that you take this into consideration when determining the sche...

Страница 718: ...ponse times to service monitor queries then it is recommended that you increase the thresholds configured for the service monitors on that device in order to prevent this incorrect reporting taking place Details of how to configure the thresholds for monitors are given in Setting Thresholds for Monitor Based Events on page 356 In order to configure the threshold appropriately for the service monit...

Страница 719: ... frame relay cloud Your service provider Acme Services provides the frame relay cloud but you manage the WAN routers One of the WAN routers connected to this WAN cloud has other active WAN interfaces You wish to represent this frame relay topology clearly in the map 1 Launch the Find dialog box by clicking the Find button in the toolbar Figure 372 Find Dialog Box 2 Select Devices from the Find lis...

Страница 720: ...73 Find Dialog Box Default WAN 5 Click Find 6 When the search completes double click on the entry for the Default WAN cloud in the results list The map zooms to the Default WAN cloud Figure 374 Find Dialog Box Double Click on Default WAN Cloud Entry 7 Close the Find dialog box ...

Страница 721: ...g the Default WAN cloud zoom out from the map by clicking the Zoom out button in the toolbar repeatedly 9 Launch the Add Map Item dialog box by selecting Edit Add Map Item 10 Locate the cloud icon in the Add Map Item dialog box select it and drag it onto the map near to the Default WAN cloud ...

Страница 722: ...oud by Drag and Drop 11 Close the Add Map Item dialog box 12 Select the new cloud in the map 13 Launch the Properties dialog box for the new cloud by selecting Properties from the right click menu of the link 14 In the Custom Name field of the General tab enter a suitable name for the cloud ...

Страница 723: ...l Tab 15 Close the Properties dialog box by clicking OK 16 Locate the three routers that contain the WAN interfaces that are connected to the frame relay cloud 17 Select their links to the Default WAN cloud Ensure that nothing else is selected in the map ...

Страница 724: ...720 CHAPTER 17 USING 3COM NETWORK DIRECTOR ON A MULTI SITE NETWORK Figure 378 Map Links Selected 18 Select Edit Delete and confirm the deletion Figure 379 Map Links Deleted ...

Страница 725: ...Examples 721 19 Select one of the routers and the new cloud in the map Figure 380 Map Router and New Cloud Selected 20 Select Edit Add Link to link the router and the new cloud together ...

Страница 726: ... DIRECTOR ON A MULTI SITE NETWORK Figure 381 Map Router and New Cloud Linked 21 Select the new link 22 Launch the Properties dialog box for that link by selecting Properties from the right click menu of the link 23 Select the Ports tab ...

Страница 727: ...rom Port frame or the To Port frame 25 Click the Set button in the frame that shows the router to launch the Set Port dialog box 26 In the Set Port dialog box select the appropriate unit and interface number of the interface on the router that is part of the logical grouping Figure 383 Set Port Dialog Box ...

Страница 728: ...g OK 28 Close the Properties dialog box by clicking OK 29 The text in the center of the cloud will automatically change to indicate that it is a frame relay cloud Figure 384 Map Showing Labelled Cloud 30 Repeat steps 11 20 for each of the other routers that have WAN interfaces connected to the frame relay cloud ...

Страница 729: ... WAN interfaces for the WAN router that has multiple active WAN interfaces To rectify this run a rediscovery of one of the subnets that the router is on by selecting the subnet in the map and selecting Tools Network Discovery This recreates the representations of the other WAN interfaces ...

Страница 730: ...726 CHAPTER 17 USING 3COM NETWORK DIRECTOR ON A MULTI SITE NETWORK Figure 386 Rediscovered Map 32 Finally relayout the map by selecting View Relayout Map ...

Страница 731: ...ructure devices including a layer 3 switch that switches traffic between the VLANs The IP addresses on the subnet associated with this VLAN have been allocated so that the WAN router layer 3 switch and other important devices that you are interested in have been assigned the first 10 IP addresses on this subnet The second VLAN contains end stations one of which is a database server critical to you...

Страница 732: ...ng IP ping requests to each of the 12 devices once every five minutes over a short sample period of 30 minutes and then estimate the settings for the other request types from the results of this Analyzing the IP ping results you see that the maximum number of retries was 3 while the longest response time was 2430ms Based upon this you decide that for IP ping requests you will set the number of ret...

Страница 733: ...Examples 729 Figure 389 Network Discovery Wizard 5 Click Next to move onto the Specify Subnets step 6 In the Specify Subnets step click Add This launches the Add Subnet dialog box ...

Страница 734: ...CHAPTER 17 USING 3COM NETWORK DIRECTOR ON A MULTI SITE NETWORK Figure 390 Add Subnet Dialog Box 7 In the Add Subnet dialog box enter the subnet address and mask of the subnet associated with the first VLAN ...

Страница 735: ...alog Box Subnet Address and Mask 8 Select the Discover custom ranges radio button 9 Click Add to launch the Add Range dialog box Figure 392 Add Range Dialog Box 10 Edit the Start IP address setting it to the first IP address in the subnet ...

Страница 736: ...ECTOR ON A MULTI SITE NETWORK Figure 393 Add Range Start 11 Edit the End IP address setting it to the tenth IP address in the subnet Figure 394 Add Range End 12 Click OK to add the new range to the list of ranges to discover on the subnet ...

Страница 737: ...e 395 Add Subnet Dialog Box Discover Custom Ranges Selected 13 The Start IP address is already set to the first IP address in the subnet so edit the End IP address so that it is set to the tenth IP address in the subnet ...

Страница 738: ...734 CHAPTER 17 USING 3COM NETWORK DIRECTOR ON A MULTI SITE NETWORK Figure 396 Add Subnet Dialog Box End IP Address Edited 14 Uncheck the Use defaults from Tools Options dialog box option ...

Страница 739: ...397 Add Subnet Dialog Box Use Defaults Option Unchecked 15 Enter the appropriate values in the retries and ms timeout fields from the numbers of retries and timeout periods that you determined for the various request types ...

Страница 740: ...736 CHAPTER 17 USING 3COM NETWORK DIRECTOR ON A MULTI SITE NETWORK Figure 398 Add Subnet Dialog Box Retries and MS Timeouts 16 Click OK to add the subnet to the list of subnets to discover ...

Страница 741: ...set to the IP address of the database server 23 Note that the Use defaults from Tools Options dialog box option is already cleared and the values in the retries and ms timeout fields are already set to the numbers of retries and timeout periods that you determined for the various request types 24 Click OK to add the subnet to the list of subnets to discover 25 Repeat steps 17 24 for the third VLAN...

Страница 742: ... Wizard Monitor Core Devices and Links 28 Click Next to move onto the Community Strings step 29 If the SNMP community strings on any of the devices that you are about to discover are set to different values from the defaults then enter details of those community strings in this step See Community Strings Pane on page 118 for details of how to use this step 30 Click Next to move onto the NBX Voice ...

Страница 743: ...ssors step 33 If you have changed the administrator username or password of your NBX call processor from the factory defaults then select the Custom option and enter the appropriate username and password Figure 402 Network Discovery Wizard NBX Call Processors 34 Click Next to move onto the Discovery Options step ...

Страница 744: ...d Discovery Options 35 To simplify the display of the remote site you decide that you do not wish MAC only devices to be created To do this first uncheck the Use defaults from Tools Options dialog box option Figure 404 Network Discovery Wizard Use Defaults Unchecked 36 Check the Only IP devices option ...

Страница 745: ... IP Devices Checked 37 Click Next twice to move through the rest of the wizard to the Summary step Figure 406 Network Discovery Wizard Summary Step 38 Check that the details of the discovery are correct before clicking Finish to discover your remote site ...

Страница 746: ...pond to queries at the remote site itself and is being reported as slow to respond purely because of the latency caused by the WAN links in the path to the mail server You decide to modify the thresholds for the mail server to prevent the events from being generated in future 1 Launch the Find dialog box by clicking the Find button in the toolbar Figure 407 Find Dialog Box 2 Select Devices from th...

Страница 747: ...08 Find Dialog Box Fields Populated 5 Click Find 6 When the search completes double click on the entry corresponding to the mail server in the results list The map zooms to the mail server Figure 409 Find Dialog Box Results ...

Страница 748: ...he Find dialog box Figure 410 Map Zoomed to Search Results 8 Launch a historical report for the mail server by selecting Historical Report from the right click menu for the mail server 9 Click on the Weekly Graphs 30 minute average shortcut to view the graphs for the last week ...

Страница 749: ...time range for each of the three services that you are monitoring on the mail server For example looking at the SMTP Response time graph in detail shows that the normal response time is in the range 1200 1400ms The graph also shows three times when the mail server was slow to respond to SMTP requests when the response time rose to over 2400ms ...

Страница 750: ...e range of 1200 1400ms 11 Launch the Live Graphs dialog box for the mail server by selecting Live Graphs from the mail server s right click menu Figure 413 Live Graphs Dialog Box 12 In the Live Graphs dialog box select the IP Ping Service monitor if it is not already selected 13 Launch the Threshold Settings dialog box for the monitor by clicking the Change Thresholds button in the toolbar of the ...

Страница 751: ...range is below the warning threshold you ensure that the monitor will not generate events when the mail server is responding normally As the high threshold is set to 2000ms any future occurrences of the network event that caused the response time of the mail server to increase to over 2400ms will cause an error event informing you of the problem when it is still occurring 15 Close the Threshold Se...

Страница 752: ...interface types These are detailed in the table below Table 109 WAN Interface Types WAN Family ifType ATM atm 37 aal5 49 cctEmul 61 atmLogical 80 atmDxi 105 atmFuni 106 atmIma 107 atmSubInterface 134 atmVirtual 149 voiceOverAtm 152 rfc1483 159 aal2 187 atmRadio 189 atmVciEndPt 194 propAtm 197 xDLC sdlc 17 hdlc 118 trasnpHdlc 123 DS ds1 18 e1 19 ds3 30 g703at64k 66 g703at2mb 67 ds0 81 ds0Bundle 82 ...

Страница 753: ... 32 frameRelayService 44 frameRelayInterconnect 58 frameRelayMPI 92 voiceOverFrameRelay 153 frDlciEndPt 193 ISDN basicISDN 20 primaryISDN 21 isdn 63 lapd 77 MPLS mplsTunnel 150 mpls 166 PPP propPointToPointSerial 22 ppp 23 async 84 pppMultilinkBundle 108 SMDS smdsDxi 43 smdsIcip 52 SONET sonet 39 sonetPath 50 sonetVT 51 pos 171 sonetOverheadChannel 185 WAN Family ifType ...

Страница 754: ...all of the devices at the site are not discovered at all Some of the devices at the site may be discovered as MAC only devices 3Com Network Director may fail to retrieve full details of some or all of the devices features and configurations 3Com Network Director may be unable to correctly determine the topology of the site If any of these issues arise when you are discovering a remote site then yo...

Страница 755: ...causes Problems with Discovering WAN Routers Depending upon your network configuration you may find that discovering a subnet that a WAN router has an IP address on fails to discover the WAN router does not determine the features and configuration of the WAN router or only shows the WAN router as a MAC only device in the map There are various reasons why this may occur If the WAN router is owned a...

Страница 756: ...N routers to have SNMP management disabled at least on their WAN interfaces to prevent malicious changes to the configuration If SNMP management of the WAN router has been disabled across the entire router then 3Com Network Director will be unable to fully discover the router In order for 3Com Network Director to be able to fully discover the router you will need to enable SNMP management on at le...

Страница 757: ...rocessors line cards and phones are displayed on the 3Com Network Director network map Monitoring 3Com Network Director checks the status of the NBX Call Processor and the availability of phones on the network Event reporting 3Com Network Director logs events when the network condition affects the voice system Administration 3Com Network Director provides an entry point to the NetSet administratio...

Страница 758: ...y the NBX Call Processors on your network for the list of line cards and phones on the system Collect information about the line cards and phones on your network Find the physical location of the line cards and phones on your network How 3Com Network Director Represents the Phone Network Icons 3Com Network Director displays the devices that are part of the NBX system on the 3Com Network Director n...

Страница 759: ... IP address Line Cards NBX line cards are represented individually on the network map as seen in Figure 415 Figure 415 Representation of a Line Card on the Map Although the line cards are managed by the NBX Call Processor they are shown using a separate icon on the network map to offer a better physical representation of the network For example a line card might be physically connected to a differ...

Страница 760: ...all Processor Whenever the NBX Call Processor becomes unavailable this affects the whole phone network all phones on the map become red showing high stress and a critical event is logged listing all the equipment affected In addition 3Com Network Director regularly polls the NBX Call Processor to check the status of the phones on the network Whenever the status of a phone becomes offline the phone...

Страница 761: ... or not you have an NBX system on your network in the step shown in Figure 416 Refer to Community Strings Pane on page page 118 for details of specifying the community strings Figure 416 NBX Voice Network Step of the Network Discovery Wizard Select the Yes radio button and click Next if you have a NBX system on your network NBX Call Processors Step This step allows you to specify the username pass...

Страница 762: ...all Processor in the table Click on Remove to remove the login details for the selected NBX Call Processor in the table Use the factory defaults Select this option if you do not know the IP address of the NBX Call Processors on your network and the NBX Call Processors on your network use the factory default username password Custom Select this option if you do not know the IP address of the NBX Ca...

Страница 763: ...sword in the Custom section The factory default username password if The NBX Call Processor s IP address is not present in the table You specified to use factory defaults Add NBX Call Processor Modify NBX Call Processor Click on the Add button to specify the settings for an NBX Call Processor on your network as shown in Figure 418 Figure 418 Add NBX Call Processor Click on the Modify button to alt...

Страница 764: ...validate the details in the step as shown You can add NBX Call Processor details to your list even if the IP address of the NBX Call Processor is not in the IP address ranges for this discovery 3Com Network Director will only attempt to communicate with NBX Call Processors which it considers to be part of the current network discovery Properties dialog box The 3Com Network Director Properties dial...

Страница 765: ...or controls the incoming and outgoing phone calls on your voice system when the NBX Call Processor stops responding to the IP Ping Service and its icon on the map turns red 3Com Network Director will also turn the icons for all monitored phones on the map managed by this processor to red to indicate that they cannot receive or make calls When the NBX Call Processor becomes unavailable no calls can...

Страница 766: ... are not considered to be core devices To start monitoring a line card select the icon for it on the map and use the Monitoring Start Monitoring menu option The only monitor available for a line card is the IP Ping Service This monitor is only available if an IP address was configured for the line card If a line card does not have an IP address assigned the Monitoring Start Monitoring menu option ...

Страница 767: ...veral NBX Call Processors are selected and the Select Related Phones option is used all phones and line cards managed by the selected items will be highlighted If the NBX system on the map was not successfully discovered selecting this menu option will display the warning message in Figure 421 Figure 421 No Phones Have Been Discovered for the NBX Call Processor ...

Страница 768: ... position of phones on the map does not necessarily mean that they are managed by the closest NBX Call Processor Figure 422 Context Menu for the Phone or Line Card As a result the 3Com Network Director map will navigate and zoom into the NBX Call Processor that manages this phone or line card This operation can only be performed by selecting one phone at a time Multiple selection is not allowed If...

Страница 769: ...related to the NBX Call Processor The NBX Call Processor is the most important part of the voice network because it handles all incoming and outgoing phones calls This is why when the NBX Call Processor becomes unavailable a Phone Network Down event will be logged with a severity of Critical Details shown for this event will include information such as Which NBX Call Processor caused this conditio...

Страница 770: ...uality noticeable as delays or jitter For instance the following network conditions could affect the voice network High number of packets being dropped on switches High number of error frames on links High link utilization Switch becomes unavailable In all these cases an event will be logged Details shown for this event will include information such as What might be the cause of the problem What e...

Страница 771: ...or line card icon on the map then selecting the Device Web Management menu option on the main menu By right clicking the phone or line card icon on the map and selecting Web Management in the menu which appears If Web management is the default management option by double clicking on the phone or line card icon on the map See Tools Options Menu Option on page 76 for information about setting this o...

Страница 772: ...all Processor then click OK This will add the NBX Call Processor to the table in the NBX Call Processors step 6 Repeat steps 4 and 5 for each of the NBX Call Processors in your network 7 Click Next and complete the wizard as explained in The Network Discovery Wizard on page 109 If you do not know the IP address of one of your NBX Call Processors or several of your NBX Call Processors use the same ...

Страница 773: ...ttach the alerts to all selected phones 5 With all the phones still selected select the Monitoring Start Monitoring menu option Whenever a phone becomes unavailable you will now be informed through the alert types of your choice Useful Information and References NBX system The 3Com NBX communications system delivers robust call processing features coupled with telephony applications over your netw...

Страница 774: ...rant two levels of access privileges The User Password allows individual phone users to view or change their personal settings such as personal speed dial lists and ringing tones The Administrator Password allows the system administrator to manage user profiles and devices and change system parameters such as speed dial lists and dial plan settings Key Considerations Troubleshooting Some advice on...

Страница 775: ... using the Edit Delete menu option The phones are not shown on the map although there is a NBX Call Processor You ran a discovery on the network where your NBX phone system is located but although the NBX Call Processor is displayed on the map the phones are not There are several reasons why this may happen The display of end stations in the map has been disabled The wrong username and password wa...

Страница 776: ... not using the correct username and password for the NBX Call Processor and explains why no phones are displayed on the map To resolve this 1 Make a note of the IP address for the NBX Call Processor You can do this by selecting the View Labels IP Address menu option 2 Make sure you know the administrator username and password for the NBX Call Processor 3 Rediscover the network using the Tools Netw...

Страница 777: ...ssor stopped responding during the network discovery If none of the previous diagnoses apply it might be that the NBX Call Processor momentarily stopped responding during the network discovery In that case you should rediscover the network 1 Rediscover the network using the Tools Network Discovery menu option 2 Go through the steps of the wizard until you reach the NBX Voice Network step Refer to ...

Страница 778: ...his can mean one of three things The phone was removed from the network The phone cannot be reached The network device the phone is connected to has not been discovered The phone was removed from the network 3Com Network Director reads the list of phones from NetSet If the list of phones in NBX NetSet is out of date and some of the phones listed have been removed from the network these phones will...

Страница 779: ...ossible to connect the phone to the rest of the topology If this is the case then you may resolve this by taking the following steps 1 Determine the IP address of the network device that the phone is connected to 2 Launch the Network Discovery wizard using the Tools Network Discovery menu option 3 In the Discovery Type stage select Specify subnets and click Next 4 In the Specify Subnets stage add ...

Страница 780: ...e a number of phones to use the same label How do I change the label of a phone or line card To change the label of a phone or line card you can set the custom name using the Properties dialog box Refer to Viewing Device Details on page 229 for further details You can also change the type of label displayed for all devices on the map by selecting your preferred option from the View Labels submenu ...

Страница 781: ...nfiguration of your 3Com devices Apply a software configuration saved in the backup file to either the device from which it originated or to a replacement device of the same type Copy the software configuration of one 3Com device to other devices of the same type The following topics are covered in this chapter Key Concepts Backup Components Restore Components Setup Components Examples Useful Info...

Страница 782: ...have the same physical configuration as the source device Physical Identification of Devices Every backup file is associated with a physical identification that uniquely identifies the source device from which the backup was taken This physical identification is derived from the hardware address of the source device The physical identification of a device made up of more than one unit is unique to...

Страница 783: ... use the Backup feature of 3Com Network Director Device Backup Wizard You can create and manage backup files for any of the supported 3Com devices on your network Select Device Backup to open the Device Backup Wizard Within the Device Backup Wizard you can Select a group of devices to back up Enter a label and description to be applied to all of the backup files created by the operation Schedule t...

Страница 784: ...saved configuration for all your supported devices Backup all devices of the type backs up all devices of the specified type in the current map You may wish to use this backup type after adding and configuring a large number of devices of a particular type on your network Custom which allows you to choose which of the supported 3Com devices in your network you wish to back up 3Com recommends that ...

Страница 785: ...d on this page by default as shown in Figure 425 Figure 425 Specify Devices to Backup You can add devices to the list and remove devices from the list box provided using the Add and Remove buttons Specify Telnet Login Information Step The Specify Telnet Login Information step is only displayed if one or more of the devices that you have selected for backup require Telnet login information in order...

Страница 786: ... specifies the username used to log in to the selected devices via Telnet This can be a maximum of 32 characters Password specifies the password used to log in to the selected devices via Telnet This can be a maximum of 24 characters The username and password may be left blank Backup Identification Step You can manage your device configuration backups by labelling your backups and providing commen...

Страница 787: ...tore and Setup operations to help you identify the backups The wizard will not progress to the next step until a label has been entered although the comments are optional Scheduling Step You can choose the operation schedule as either Now if you want the Device Backup operation to begin as soon as you complete the wizard Or Later if you want the Device Backup operation to begin at a later time The...

Страница 788: ...ce Backup Progress dialog box is shown to indicate the progress of the operation The Device Backup Progress dialog box can be minimized to the status bar of the application If the Device Backup operation started according to a schedule then it will appear in its minimized state You can cancel the Device Backup operation at any time If you do cancel the operation then any backups that have already ...

Страница 789: ...atically generated You can choose whether to view the report or not from the Device Backup Summary dialog box shown at the end of the operation The Backup Summary report details the following The label and description applied to all of the successful backups created by the Device Backup operation The devices for which a backup was successfully created A hyperlink to the saved backup file for each ...

Страница 790: ...store and Setup 3Com Network Director provides further details on the reason why Backup Files The Device Backup operation creates a new backup file each time it successfully saves the configuration of a device You can view the contents of a backup file by Clicking Label in the Backup Audit report to view the most recent backup file for any device in the current map Clicking View Backup in the Back...

Страница 791: ...estore operation You can select from the saved backups that have the same physical configuration as the target device If there are no saved backups associated with the target device because it is a replacement device you will be given the opportunity to specify the device that this is a replacement for The Device Restore Wizard is launched from Device Restore No Backups Found Step When you launch ...

Страница 792: ...nfiguration to a device which is neither the source of the backup nor a replacement for the source of the backup then you should use the Device Setup Wizard See Device Setup Wizard on page 792 for more details Specify Device Being Replaced Step When you indicate in the No Backups Found step that the target device is a replacement for another device the Specify Device Being Replaced step is shown T...

Страница 793: ...ve specified the device that has been replaced all existing backups for that device will be associated with the target device after the Device Restore operation has completed successfully Specify Backup to Use Step If the target device has one or more existing backup files associated with it the Specify Backup To Use step is displayed The wizard also shows this step after the Specify Device Being ...

Страница 794: ...ate the date on which the backup was created Label the label you gave this backup in the Device Backup Wizard Comments the comments that you gave this backup in the Device Backup Wizard Specify Telnet Login Information Step The Specify Telnet Login Information step is only displayed if the device that you have chosen to restore requires Telnet login information in order to perform the restore oper...

Страница 795: ...gress Once you select Finish on the Summary step the Device Restore operation is ready to begin Before any configuration takes place the Device Restore operation displays a warning dialog box The dialog box advises you to ensure that the target device is isolated from your network before proceeding You must acknowledge this warning before continuing See Key Considerations on page 808 for further i...

Страница 796: ...peration completes the Restore Summary report is automatically generated You can choose to view the report from the Device Restore Summary dialog box that is shown at the end of the operation The Restore Summary report details the following The label and description of the saved backup that the Device Restore operation attempted to apply to the target device The details of the target device for th...

Страница 797: ...n choose whether the software configuration that will be applied to your target devices should come from either a live device on your network or a saved backup as shown in Figure 433 Figure 433 Device Setup Wizard Configuration Source Type Specify Source Device Step When you choose to use a live device on your network as the source software configuration the Device Setup Wizard shows the Specify S...

Страница 798: ...ct any one of the supported devices in the current map The device you select here will be used as the source of the software configuration applied to your target devices Specify Source Backup Step When you choose to use an existing backup as the source software configuration the Specify Source Backup step as shown in Figure 435 ...

Страница 799: ... created using the Device Backup operation The backup you select here will be applied to your target devices Specify Devices to Setup Step This step presents all the supported devices in your current map that have the same physical configuration as the source of the software configuration you have chosen to apply as shown in Figure 436 ...

Страница 800: ...ice Setup Wizard Specify Devices To Setup Select the target devices that you wish to apply the chosen software configuration to Summary Step and Progress The Device Setup operation is ready to begin once you select Finish on the Summary step as shown in Figure 437 ...

Страница 801: ...p operation the Device Setup Progress dialog box is shown to indicate the progress of the operation The Device Setup Progress dialog box can be minimized to the status bar of the application by clicking Minimize in the bottom left hand corner of the progress dialog box You can cancel the Device Setup operation at any time If you do cancel the operation then the configuration of the target device t...

Страница 802: ...ted for target devices that are still pending or in progress at that time Setup Summary Report When the Device Setup operation completes the Setup Summary report is automatically generated You can choose whether to view the report or not from the Device Setup Summary dialog box that is shown at the end of the operation The Setup Summary report covers the following The details of the source device ...

Страница 803: ...ure that all of the devices on your network are present in the current map 2 Launch the Device Backup Wizard from the toolbar on the device window Select Next on the Introduction step to display the Backup Type step as shown in Figure 424 3 Select the Backup all 3Com devices radio button to back up all of the supported 3Com devices in the network then select Next 4 The wizard displays the Backup I...

Страница 804: ...and leave today as the selected day to run the operation as shown in Figure 439 If you decide to schedule the backup operation for a time after midnight remember to set the date to the following day Figure 439 Scheduling Example 6 Select Next to display the Summary step and select Finish to schedule the Device Backup to start later in the evening When the Device Backup operation runs it will attem...

Страница 805: ... PC For further information on configuring a device with an IP address refer to the user documentation that is supplied with your device 2 Connect the management station to the replacement device using either a direct Ethernet connection or a connection through a simple hub or switch 3 Create a new map and select Add Device to add the replacement device to the empty map Add Device can be launched ...

Страница 806: ... associate them with the replacement device 9 Now that the replacement device has a suitable software configuration to be swapped in to the network you can configure it with the IP address of the failed device Disconnect the replacement device from the management station and swap it with the failed device to complete the task Deploying a Group of Devices You have decided to upgrade a large number ...

Страница 807: ...rough a hub or switch 4 Using the Add Device option or by importing the IP addresses from a CSV file create a new map and add the new switches to the map 5 Launch the Device Setup Wizard using the toolbar button on the main screen Select Next at the Introduction step to display the Configuration Source Type step and select the Live Device radio button 6 Select Next to display the Specify Source De...

Страница 808: ...fully 9 Now that all of the new switches have the desired port security and VLAN settings you can configure each of the switches with any individual settings that they require You should also give each device the IP address that you will use to manage it once it has been added to your network 10 Finally disconnect the new devices from your management station and add them to the edge of your networ...

Страница 809: ...ense Required the agent software on the selected device is capable of providing Backup and Restore functionality However a License Key is required to enable this feature in the agent software Refer to the software user documentation for details on how to obtain a License Key Not Supported one or more units in the device list are not supported Please ensure that you have downloaded and installed th...

Страница 810: ...re not saved as part of the human readable backup files for security reasons See Understanding Backup Files below for a list of device families whose configuration is stored in readable backup files Device Family Supported Parameters Switch 610 630 Switch 1100 Family Switch 3300 Family System Information VLANs Roving Analysis Port Resilient Links Port Trunks Port Security Spanning Tree Port Config...

Страница 811: ...o manage unless you manually delete unwanted backup files To delete an unwanted backup file locate the file in the backup directory on your hard disk using Windows Explorer Device Family Content of Backup File Body Section Switch 610 630 Switch 1100 Family Switch 3300 Family Switch 4300 The entire software configuration of the device saved in a readable XML format The software configuration can be...

Страница 812: ...s that conflict either with the physical identification or the physical configuration of the current device Any existing backups that fail this consistency check will be discarded before a new backup is saved This happens if There are existing backups associated with the physical identification of the current device but the physical configuration stored in the existing backups does not match the p...

Страница 813: ...onnect them directly to the management station before using Restore or Setup Why Errors can Occur during Restore and Setup A common reason for the failure of a Device Restore or Setup operation is a loss of contact with the target device This can occur either when the device is initialized prior to configuration or while the device is being configured If this happens please ensure that the target ...

Страница 814: ...810 CHAPTER 19 BACKING UP DEVICE CONFIGURATIONS ...

Страница 815: ...es the download of these files By downloading and installing 3Com Network Director updates you can ensure that 3Com Network Director is up to date enabling you to take advantage of the latest bug fixes and device support The Latest 3Com Product News notifies you of new 3Com products and also contains articles on how to make the most of the features on your existing devices The following topics are...

Страница 816: ...3Com Network Director should use to connect to the Internet Service Packs A Service Pack is an installable software component that keeps 3Com Network Director and related applications such as 3Com Router Manager and 3Com Switch Manager up to date It provides updates such as Latest bug fixes Day one management support for the latest 3Com devices Live Update Engine The Live Update engine ensures tha...

Страница 817: ...rnet connection The Live Update dialog box this dialog box lists the available updates and lets you choose the ones you want to download Live Update Setup Wizard The Live Update Setup Wizard is launched the first time you use Live Update You can choose the way 3Com Network Director connects to the Internet and specify the proxy settings Connection Type Step From the Connection Type step you can se...

Страница 818: ... This is also recommended if your proxy server requires authentication using username and password For more information on web browsers supported by 3Com Network Director see Web Browser on page 859 3Com Network Director can only detect your default web browser settings if your default web browser is Internet Explorer or a version of Netscape Navigator earlier than 4 79 and will default to using a...

Страница 819: ...es authentication If this option is not selected the Username and Password fields will be ignored Username enter the username that 3Com Network Director should use to access the proxy server This field can only be edited if the My proxy server requires authentication checkbox is selected Password enter the password that 3Com Network Director should use to access the proxy server This field can onl...

Страница 820: ...information is displayed if you selected Use Web browser settings and your default browser is configured to use a proxy server to connect to the Internet or if you selected Use custom proxy settings in the Connection Type step Proxy Port the port that 3Com Network Director will connect to on the proxy server This information is displayed if you selected Use Web browser settings and your default br...

Страница 821: ... Update Setup Wizard next time select this option if you want the Live Update Setup Wizard to be displayed the next time you run Live Update De select this option if you do not want this wizard to be displayed the next time you run Live Update Click Finish to connect to the Internet If your proxy server requires authentication and you did not specify a username password you will be prompted to ent...

Страница 822: ...ed the Tools Live Update menu option Status This is the current status of the initial transaction between your PC and the Live Update server The Status field will show one of the following Searching for available updates 3Com Network Director is connecting to the Live Update server and looking for the updates that are relevant to you Available updates retrieved 3Com Network Director completed the ...

Страница 823: ...nformation see Select File Group Group Name on page 820 File Group this column indicates the type of file group available for download 3Com Network Director supports the following file groups 3Com Network Director Update this group contains the latest software updates for 3Com Network Director this can be a Service Pack or a main release Latest 3Com Product News this group contains the latest news...

Страница 824: ...Group Name on page 820 Select File Group Group Name This dialog box displays the contents of the file group selected in the Select File Groups dialog box as shown in Figure 446 Use the checkboxes in the Load column to select which files you want to download Figure 446 Live Update Select File Groups Group Name The title of the dialog box corresponds to the file group selected For example if the fil...

Страница 825: ...rsion of the update as well as the main version it applies to If the file group is Latest 3Com Product News 3Com Router Manager Updates or 3Com Switch Manager Updates the version is not applicable N A File Size the size of the file s in KB The Release Notes button opens the release notes in Windows Notepad for the selected update If no release note is available for the update the Release Notes but...

Страница 826: ...ager Updates or 3Com Switch Manager Updates a message box is displayed indicating where the files have been downloaded to on your PC If the update is a 3Com Network Director update you are required to restart 3Com Network Director If you choose to restart the update installs automatically If you choose to restart later the update installs the next time 3Com Network Director is launched The 3Com Ne...

Страница 827: ... Direct connection to the Internet 3Com Network Director connects directly to the Internet through the LAN Custom proxy settings 3Com Network Director uses a proxy server that you specify to connect to the Internet This is the recommended setting if you require a proxy server to connect to the Internet and your default browser is not configured to use that proxy or your default browser is not supp...

Страница 828: ...etwork Director uses to access the proxy server This field is only available when Custom proxy settings and the My proxy server requires authentication checkbox are selected Password the password that 3Com Network Director uses to access the proxy server This field is only available when Custom proxy settings and the My proxy server requires authentication checkbox are selected The General tab in ...

Страница 829: ...oftware updates downloaded using Live Update To view the report 1 Select the Tools Reports menu option 2 In the Generate Reports tab select the Live Update Activity report 3 Click on Generate Report This will launch the Live Update Activity report in your default browser If the download operation failed or was cancelled the File Size column indicates 0 KB ...

Страница 830: ... Settings and click Next 3 Click Finish 3Com Network Director will check for available software updates on the Live Update server 4 The Live Update Select File Groups dialog box will display any available updates If 3Com Network Director is up to date you will get the message seen in Figure 450 This means that your devices are already supported and you need take no action Figure 450 3Com Network D...

Страница 831: ... support for your new 3Com devices 7 Click OK to return to the Live Update Select File Groups dialog box 8 Click OK to download the update 9 When the download is complete you will be asked to restart 3Com Network Director Click Yes to restart The downloaded update will be installed automatically Updating the Connection Information Your PC previously used a direct connection to the Internet however...

Страница 832: ...eneral tab 3 Click Show the Live Update Setup Wizard next time option if it is not already selected 4 Click OK to validate the changes 5 Click Live Update This launches the Live Update Setup Wizard 6 Select Use Web Browser Settings and click Next The Summary dialog box is displayed which shows the proxy settings that Live Update will now use as shown in Figure 452 Figure 452 Automatic Configuratio...

Страница 833: ...ion 2 Click the Internet tab to display the Internet connections settings 3 Select the Custom Proxy Settings option You can now enter the proxy server name or IP address and the proxy port as shown in Figure 453 Figure 453 Tools Options Internet Tab Example 4 If your proxy server requires authentication you can also enter a username and password in this dialog box by selecting the My proxy server ...

Страница 834: ...s to view the details on that update This will open the Live Update Select File Groups 3Com Router Manager Updates dialog box 6 Click Release Notes to display the readme file in Notepad You can then check that this update applies to the version of 3Com Router Manager installed on your PC 7 Click OK to return to the Live Update Select File Groups dialog box 8 Click in the Load column to ensure that...

Страница 835: ...en using Live Update The Proxy Settings are not Retrieved A description of this problem is as follows Your browser is using a proxy server to connect to the Internet In the Connection Settings step of the Live Update Setup Wizard you selected Use Browser Settings However in the Summary step of the Live Update Setup Wizard the connection type is set to Direct Connection to the Internet when it shou...

Страница 836: ...the free disk space A suggested solution is to free some disk space on the disk drive where the temporary folder is located until there is enough space to download all the updates Alternatively you can de select updates from the list in the Live Update Select File Groups dialog box until the total download size files into the free disk space Cannot Find the Downloaded 3Com Router Manager Updates o...

Страница 837: ...olumn Once you know the file name you can find the update in the folder where 3Com Router Manager updates are located The 3Com Router Manager Updates files are downloaded to the patches folder in the 3Com Network Director install directory usually C Program Files 3Com Network Director patches ...

Страница 838: ...834 CHAPTER 20 LIVE UPDATE ...

Страница 839: ... installed the latest Service Pack In particular newly available unit types in device families listed in the following sections may not be supported unless you have installed the latest Service Pack Bulk Configuration Table 113 Bulk Configuration Supported 3Com Devices and Minimum Agent Versions Device Type Minimum Agent Version 3Com SuperStack II Switch 610 2 60 3Com SuperStack II Switch 630 2 60...

Страница 840: ...witch 4900 family 3 0 3Com Switch 4050 3 0 3Com Switch 4060 3 0 3Com Switch 4070 3 0 3Com Switch 4005 and modules 1 22 Device Type Minimum Agent Version Device Type Minimum Agent Version 3Com SuperStack II Switch 610 2 60 3Com SuperStack II Switch 630 2 60 3Com SuperStack II SuperStack 3 Switch 1100 family 2 60 3Com SuperStack II SuperStack 3 Switch 3300 family 2 60 3Com CoreBuilder Switch 3500 an...

Страница 841: ... 0 3Com Switch 7700R 1 0 Device Type Minimum Agent Version Device Type Minimum Agent Version 3Com SuperStack II Switch 610 2 6 3Com SuperStack II Switch 630 2 6 3Com SuperStack II SuperStack 3 Switch 1100 family 2 6 3Com SuperStack II SuperStack 3 Switch 3300 family 2 6 3Com SuperStack 3 Switch 4300 1 12 3Com SuperStack 3 Switch 4400 family 3 0 3Com SuperStack 3 Switch 4900 family 4 0 3Com Switch ...

Страница 842: ... surrounding network devices could result in network loops or other problems which may bring down the network to which the device is attached If you are using any of the following features on the device or they are part of the configuration being applied you should disconnect the device from the network connect it to this management station either directly or via a single hub or switch before atte...

Страница 843: ... Setup operation 3 For security purposes the Device Backup operation does not backup the user information community strings or RADIUS shared secret of the selected devices Therefore this information will not be changed by the Device Restore or Device Setup operations see point 4 below for exceptions The following devices are exceptions to this rule storing their configuration in a non readable bin...

Страница 844: ...quired by these devices may range from one minute to one hour depending upon the size and complexity of the target device and the configuration being applied A typical device and configuration is expected to require less than five minutes The Device Restore and Setup operations will wait for the devices to apply the configuration changes but this will not be reflected by the progress bar Subsequen...

Страница 845: ...ice Agent Update Table 116 shows the devices that are supported by the Agent Update operation Table 116 Agent Update Supported 3Com Devices and Minimum Agent Versions Device Type Minimum Agent Version 3Com SuperStack II Switch 610 3Com SuperStack II Switch 630 3Com SuperStack II SuperStack 3 Switch 1100 family 3Com SuperStack II SuperStack 3 Switch 3300 family 3Com SuperStack 3 Switch 4200 family ...

Страница 846: ... 3013 1 20 3Com Router 3015 1 20 3Com Router 3016 1 20 3Com Router 3018 1 20 3Com Router 5009 1 20 3Com Router 5231 1 20 3Com Router 5640 1 20 3Com Router 5680 1 20 3Com SuperStack 3 Switch 3200 family 3Com SuperStack 3 Switch 4800 family 3Com SuperStack II PS Hub 40 PS Hub 50 3Com SuperStack II Dual Speed Hub 500 3Com CoreBuilder Switch 3500 and modules 3Com OfficeConnect Hub 8 TPM 3Com OfficeCon...

Страница 847: ...in If it fails a second time then you should use the Software Update Utility to update the device directly 4 Switch 1100 3300 PS Hub and DS Hub 500 devices There is a short period during the update process when loss of connectivity or power will result in the device becoming non operational The device will run up on its BOOT code then you should use the Software Update Utility to update the device...

Страница 848: ...ation from occurring please ensure that the network map is up to date before attempting an Agent Update operation 12 Agent Audit Report The agent audit report displays the location of the latest agent for devices whose agent is out of date Currently this will be either Live Update for agents that are available via Live Update or Local for agents that have already been imported onto the local syste...

Страница 849: ...Devices Device Type 3Com SuperStack II SuperStack 3 Switch 1100 family 3Com SuperStack II SuperStack 3 Switch 3300 family 3Com SuperStack 3 Switch 4200 family 3Com SuperStack 3 Switch 4300 3Com SuperStack 3 Switch 4400 family 3Com SuperStack 3 Switch 4900 family 3Com Switch 4007 3Com CoreBuilder 9000 3Com Switch 4050 3Com Switch 4060 3Com Switch 4070 3Com SuperStack 3 Switch 3200 family 3Com Super...

Страница 850: ...rted by Device View are listed below Table 118 Device View Supported Devices 3Com Router 5680 Device Type Supported Devices 3Com AccessBuilder 6218 3Com AccessBuilder 7000 BRI 3Com AccessBuilder 7000 PRI 3Com CoreBuilder 2500 3Com CoreBuilder 3500 3Com CoreBuilder 9000 16 Slot 3Com CoreBuilder 9000 9 Slot 3Com CoreBuilder 9400 3Com FMS II 3Com LANplex 2016 3Com LinkSwitch 2200 3Com OfficeConnect H...

Страница 851: ...tch 3800 3Com SuperStack II Switch 9000 3Com SuperStack Switch 9100 3Com SuperStack 3 Switch 4400 Family 3Com SuperStack 3 Switch 4900 Family 3Com Switch 40x0 Family 3Com SuperStack II UPS 3Com Switch 4007 3Com Superstack 3 3300 4 Port 1000Base LX downlink module for 4900 40X0 4 Port 1000Base SX downlink module for 4900 40X0 1000Base T downlink for 4400 1000Base SX downlink for 4400 1000Base LX do...

Страница 852: ...evice Warranty The devices supported by the Device Warranty feature are shown in Table 121 Table 121 Device Warranty Supported Devices XRN Interconnect Module for 4900 40x0 family Supported Devices Supported Devices 3Com Switch 7700 Supported Devices 3Com Router 5009 3Com Router 5231 3Com Router 5640 3Com Router 5680 3Com Router 3012 3Com Router 3013 3Com Router 3015 3Com Router 3016 3Com Router 3...

Страница 853: ...3 Switch 4900 family 3Com SuperStack 3 Webcache 1000 3Com SuperStack 3 Webcache 3000 3Com SuperStack II Desktop Switch 3Com SuperStack II Dual Speed Hub 500 3Com SuperStack II Hub 10 SuperStack II Hub 100 3Com SuperStack II Layer 3 Switch Module 3Com SuperStack II PS Hub 40 PS Hub 50 3Com SuperStack II Remote Access System 1500 Base Unit 3Com SuperStack II Switch 1000 3Com SuperStack II Switch 220...

Страница 854: ...devices For other 3Com networking products please ensure that you refer to the readme files supplied with your product to check for possible compatibility issues with 3Com Network Director 3Com SuperStack II Switch 9100 3Com SuperStack II SuperStack 3 Switch 1100 family 3Com SuperStack II SuperStack 3 Switch 3300 family 3Com Switch 4005 and modules 3Com Switch 4007 and modules 3Com CoreBuilder 900...

Страница 855: ...x describes how 3Com Device View enables you to monitor and set up the 3Com hubs switches bridges routers and remote access devices on your network The following is covered in this appendix About Device View Management Support Matrix ...

Страница 856: ...For a list of supported devices in this release of 3Com Network Director refer to Appendix A on page 851 Management Support Matrix This section details the devices that you can manage with Device View and the management features that are available Monitor status Setup device Use SuperStack groups Upgrade agent software Manage ports Manage console port Manage bridging Create resilient links Create ...

Страница 857: ... SuperStack II Switch 1000 3Com SuperStack II Switch 1100 3Com SuperStack II Switch 2200 3Com SuperStack II Switch 3000 3Com SuperStack II Switch 3300 3Com SuperStack II Switch 3800 3Com SuperStack II Switch 9000 3Com SuperStack II Switch 9100 3Com Switch 4007 3Com Switch 4050 3Com Switch 4060 3Com Switch 4070 Monitor status Setup device Use SuperStack groups Upgrade agent software Manage ports Ma...

Страница 858: ...3 Switch 4400 SE v v 3Com SuperStack 3 Switch 4400 FX 3Com SuperStack 3 Switch 4900 3Com SuperStack 3 Switch 4900 SX 3Com SuperStack 3 Switch 4924 3Com SuperStack 3 Switch 4950 Monitor status Setup device Use SuperStack groups Upgrade agent software Manage ports Manage console port Manage bridging Create resilient links Create VLANs View statistics Set up traps Manage security ...

Страница 859: ...24x7 telephone technical support software upgrades onsite assistance or advance hardware replacement Experienced engineers are available to manage your installation with minimal disruption to your network Expert assessment and implementation services are offered to fill resource gaps and ensure the success of your networking projects More information on 3Com Extended Warranty and Professional Serv...

Страница 860: ...es that follow the software version included with your original product In order to access upgrades and related documentation you must first purchase a service contract from 3Com or your reseller Contact Us 3Com offers telephone e mail and internet access to technical support and repair services To access these services for your region use the appropriate telephone number URL or e mail address fro...

Страница 861: ...77 7991 1800 801 777 0800 446 398 61 2 9937 5083 Philippines P R of China Singapore S Korea Taiwan Thailand 1235 61 266 2602 or 1800 1 888 9469 10800 61 00137 or 021 6350 1590 or 00800 0638 3266 800 6161 463 080 333 3308 00801 611 261 001 800 611 2000 You can also obtain support in this region using the following e mail apr_technical_support 3com com Or request a repair authorization number RMA by...

Страница 862: ...nama Paraguay Peru Puerto Rico Salvador Trinidad and Tobago Uruguay Venezuela Virgin Islands AT T 800 998 2112 57 1 657 0888 AT T 800 998 2112 1 800 998 2112 571 657 0888 01 800 849CARE AT T 800 998 2112 AT T 800 998 2112 54 11 4894 1888 AT T 800 998 2112 1 800 998 2112 AT T 800 998 2112 1 800 998 2112 AT T 800 998 2112 AT T 800 998 2112 57 1 657 0888 You can also obtain support in this region usi...

Страница 863: ...dows XP Professional SP1a Web Browser 3Com Network Director supports the following web browsers Netscape Navigator 4 x and above Netscape 7 x Internet Explorer 4 x and above There is no support for any version of Netscape 6 There may be restrictions on the web browsers supported by WebHelp Additional Software Required Adobe Acrobat Reader is required to view the PDF files installed with 3Com Netwo...

Страница 864: ...disk space 1024 x 768 graphics capabilities with 256 colors CD ROM drive Network adapter card The recommended hardware specifications for 3Com Network Director is IBM PC or compatible with 1GHz Pentium III processor or above 1GB RAM or more 1Gb free hard disk space 1024 x 768 graphics capabilities with 64K colors CD ROM drive Network adapter card Allow approximately 2Mb per device for data logging...

Страница 865: ...E REPORT EXAMPLES Overview This appendix contains examples of the following type of report Discovery Report Misconfigurations and Optimizations Report ...

Страница 866: ...because the write community string for the device has been changed from the factory default and does not match the write community string specified during discovery For possible side effects of this see here Device NameIP AddressMAC Address 140 204 232 12140 204 232 1208 00 4e af f4 6f 140 204 232 3140 204 232 300 80 3e 99 89 2b The help links will only work if the link is clicked while the report...

Страница 867: ...upported agent versions If the version read from the device does not match any of the values in that file this warning will be logged The application will still continue attempting to read information from the device The following devices are running with an unknown version of the management agent software The application could not determine the agent software version It is therefore likely that i...

Страница 868: ...r was unable to write to the following devices in order to get them to perform operations that could lead to a more accurate topology detection This is a failure to instruct a device to perform a remote poll To do this 3Com Network Director performs a write operation using the write community string If the write community string is incorrect it is likely that the attempt will time out The configur...

Страница 869: ...address of one device has been seen or learned on multiple ports of another device This implies there is a loop in the network 3Com Network Director may not represent the topology of the network accurately It is expected that this situation will be fairly uncommon Two network configurations are currently known about that could cause this Device Learned On Multiple Ports Learned By Device Ports Lea...

Страница 870: ... the host on VLAN1 sends a packet to the server on VLAN2 the packet first goes to the switch and is learned on port X in VLAN1 The packet then goes to the brouter If the protocol being used is one that is being bridged as opposed to routed then the brouter will bridge the packet back to the switch Thus the host MAC address is also learned on port Y on VLAN2 ...

Страница 871: ...sabled on this network and instead VLANs are used to avoid a network loop This means a user can run traffic over all the links on their network as opposed to having some blocked by Spanning Tree However this means that the MAC address of the PC can appear on 2 different ports on Switch 1 ...

Страница 872: ...n used across connected untagged ports For example 3Com Network Director would report this as a misconfiguration Although this is a perfectly legal configuration and the VLAN will still work it is good practice to use the same VLAN ID consistently when configuring a VLAN 3Com Network Director will treat these as three separate VLANs As a result the Show VLANs toolbar and the Find dialog will list ...

Страница 873: ...le this is a valid configuration it is good practice to use the same VLAN ID consistently to identify a VLAN 3Com Network Director will report this as a misconfiguration and will display these as two different VLANs To avoid this misconfiguration being reported in the future and to avoid 3Com Network Director listing multiple VLANs for each real VLAN the same VLAN ID should be configured on all sw...

Страница 874: ... to display the VLAN in the Show VLANs toolbar and the Find dialog To avoid this misconfiguration being reported in the future configure the same VLAN name on all switches Spanning Tree Fast Start Spanning Tree Fast Start allows you to specify whether a switch port goes directly to the STP Forwarding state when a device is connected to it This field should be set to enable if the switch port is co...

Страница 875: ...nicate with each other Configure aggregated links using LACP Distributed Link Aggregation ensures that all member ports of an aggregated link distribute the traffic flow across the XRN Distributed Fabric This provides resilience and enhanced performance If a switch within the Distributed Fabric fails aggregated links will redirect all traffic down the link s to the unit that is still operating The...

Страница 876: ...ith a Webcache Redirection capable agent and a Webcache are discovered but Webcache Redirection is not enabled from the device to the Webcache A third column in the table of the report contains a hyperlink which when clicked enables Webcache redirection from the device listed in column 1 to the Webcache listed in column 2 The caching mode of the Webcache is also changed to transparent mode the mod...

Страница 877: ...ion capable agent and a Webcache are discovered but the Webcache Redirection capable device is not directly attached to a router This is the optimal position for the redirector as the closer the device is to the router the more web traffic will pass through the device and hence be redirected to the Webcache Webcache Redirection agent upgrade required This report will be generated when a device cap...

Страница 878: ...nline mode 2 This report will be generated when no devices capable of performing Layer 4 Redirection are found and a Webcache in inline mode is discovered but either the WAN or LAN ports on the Webcache are not connected to the rest of the network To take advantage of inline mode the Webcache must have both the LAN and WAN ports connected For this network configuration you are recommended to eithe...

Страница 879: ...igured to the Webcache however there are no health checks being performed on the Webcache This will result in the following response being returned to the client browser Web traffic redirection is already configured to this Webcache but there are no health checks being performed on the Webcache Webcache Redirection Not Being Performed Redirection has been enabled to this Webcache the health check ...

Страница 880: ...esult in the following response being returned to the client browser Unable to configure Webcache redirection 3Com Network Director was unable to locate the device in its internal database This device may have been removed Please rediscover your network Unable to Configure Webcache Mode There was an error whilst trying to write the new cache proxy mode to the Webcache This will result in the follo...

Страница 881: ...cycled Click back to return to the Misconfigurations and Optimizations report Unable to Restart Webcache Traffic Server If the webCacheRestartTrafficServer MIB object could not be written to for example the community strings have been changed on the Webcache and 3Com Network Director can no longer write to the device the following response will be returned to the client browser There was an error ...

Страница 882: ...ing response being returned to the client browser There was an error whilst changing the cache proxy mode Click the back button to return to the Misconfigurations and Optimizations Report Unable to Confirm Webcache Mode Changed Changing the Webcache mode is an almost instantaneous operation if after three successive polls the mode has not changed to ëtransparentí the following response is returned...

Страница 883: ...rt Webcache Traffic Server If the webCacheRestartTrafficServer MIB object could not be written to for example the community strings have been changed on the Webcache and 3Com Network Director can no longer write to the device the following response will be returned to the client browser There was an error whilst attempting to update the configuration of the Webcache Webcache Redirection will not t...

Страница 884: ...modes proxyMode 1 transparentMode 2 however subsequent agent releases support a third caching mode transparentInlineMode 3 To ensure the Webcache Redirection feature operates alongside these subsequent agent releases without error no Webcache Redirection Misconfigurations and Optimizations reports will be generated if the Webcache is operating in this new third mode Restarting Webcache Traffic Ser...

Страница 885: ...onfigurations and Optimizations Reports chapter above can be generated at the same time The combinations in which these sections are likely to appear and under which circumstances are shown below If there is a Webcache Redirection capable device but it is not running a Webcache Redirection capable agent the following sections can be generated Different agents in stack upgrade stack agent Upgrade a...

Страница 886: ...S If Layer 4 Redirection is not enabled the following sections can be generated Enable Layer 4 Redirection OR Can t enable Layer 4 Redirection no free cache entries Webcache operating in transparent mode as opposed to forward proxy ...

Страница 887: ...be used to decode any traps received in the future However they will not be applied to traps that have already been received If you specify a decode for a trap type which is already handled by Network Director your decode will override Network Director s built in decode The format of the templates ini file is as follows The format of each trap decode is OID name trap name description description e...

Страница 888: ...These are shown in the More Detail dialog box as bulleted text and can be used to suggest remedies for the trap An example of a remedy is shown in the a3Com_swModuleVerMismatchNotification trap decode example given below severity specifies the severity to be assigned to events generated by the receipt of this trap The supported severities are from least to most important info warning high critical...

Страница 889: ...PortCurrentStatusTrap example below For more details on the Java ChoiceFormat please refer to the Sun Java technology website http java sun com The following additional variables are also supported n A human readable form of the nth trap varbind value where n is numbered from 1 upwards e The trap s enterprise field in dotted decimal format For example 1 3 6 1 4 1 43 G The trap s generic field S Th...

Страница 890: ...e same version remedy severity warning a3ComPsePortCurrentStatusTrap For Switch 4400 PWR 1 3 6 1 4 1 43 0 142 name a3ComPsePortCurrentStatusTrap description Port Power over Ethernet current status changed explanation A current port status related to Power over Ethernet has changed to 0 choice 1 OK Neither an under current or over current condition has been detected 2 Over Current The port current ...

Страница 891: ... MAC_Addr txt Network Director reads this file when it starts If any errors are found then an error is displayed detailing the type and the location of the error in the file and the MAC address translations contained within the file are ignored Network Director reverts to a safe backup copy of the originally installed file until all errors have been corrected The format for the MAC_Addr txt file i...

Страница 892: ...ces will be interpreted as a separator between the vendor and description fields For example 3Com Corporation is valid but 3Com Corporation is not where indicates a space character description is a field where you can provide your own description of the translation Network Director does not use this field Lines beginning with a character are considered to be comments and are ignored For example th...

Страница 893: ...remedy severity warning a3ComPsePortCurrentStatusTrap For Switch 4400 PWR 1 3 6 1 4 1 43 0 142 name a3ComPsePortCurrentStatusTrap description Port Power over Ethernet current status changed explanation A current port status related to Power over Ethernet has changed to 0 choice 1 OK Neither an under current or over current condition has been detected 2 Over Current The port current exceeds the max...

Страница 894: ...890 APPENDIX G ADDING MAC ADDRESS VENDOR TRANSLATIONS ...

Страница 895: ...disk Installation Directory SSHClient properties 2 Follow the instructions at the top of this file Once your client is integrated the option SSH Management will appear on the pull right menu for all devices on your map Network Director will call your client with a single command line parameter the target device s IP address If your SSH client expects multiple parameters or expects the client s IP ...

Страница 896: ...892 APPENDIX H INTEGRATING AN SSH CLIENT For example if your client expects to be called using myClient ip ip address verbose your batch file might contain myClient ip 1 verbose ...

Страница 897: ...log box 598 add edit report wizard 463 adding items map 202 administration menu 474 agent change version 669 agent audit report 674 agent image filenames 676 files 664 Agent Update 663 805 agent update components 665 examples 674 progress dialog box 672 scheduling 664 670 summary 671 summary report 673 supported devices 676 841 troubleshooting device problems 677 wizard 665 agent update events 673...

Страница 898: ...s dialog box 364 authentication 815 automated logging 385 automatic relayout of map 201 autonegotiation configuring 609 available updates live update 819 B backup 777 comments 790 components 779 date 790 examples 799 label 790 scheduling 783 specify backup 789 specify devices 781 summary and progress 784 791 supported device parameters 806 type 779 backup audit report 786 backup files 786 managing...

Страница 899: ...s 619 supported features by device family 619 buttons toolbar zoom 183 C capacity report 457 cause of high errors 392 change agent version 669 changes network 131 changes report 133 536 changing displayed path 189 classification 624 cloud 230 clouds 167 and submaps 168 other 103 values 168 WAN 104 wireless clients 104 colors event severity 323 comment filter 343 commenting on events 333 comments b...

Страница 900: ...figuring the network end to end traffic prioritization 630 configuring the storage of monitoring history for events 360 configuring VLANs VLANs configuring 499 connection to the 3Com server 490 connection type live update 812 controlling per event smart event analysis 355 controlling smart event analysis 352 controlling SNMP trap filtering 354 conventions notice icons About This Guide 32 text Abou...

Страница 901: ...events filter 343 deleting events 335 deleting items and links map 204 demand for bandwidth 392 deploying a group of devices 802 description filter 343 detailed graph dialog box 287 detecting problem device 675 detecting NBX phones 95 device 230 device tree 234 groups 157 icons 158 router manager 475 switch manager 475 view 475 device backup events 784 reports 785 supported device parameters 806 w...

Страница 902: ...ce view about 852 management support matrix 852 supported devices 846 device warranty dialog 483 reporting 491 wizard 484 devices 158 deploying a group 802 discovering 92 groups 230 labels and address translation 175 menu 161 not supported 805 physical configuration 778 physical identification 778 dialog about 48 dialog box add trap destination 603 add trusted IP address 598 add user account 595 a...

Страница 903: ...the NBX voice network 757 discovering the network 91 components 106 discovery clouds 100 device resolution 99 errors and warnings 144 initial endstation 99 launching 106 outstanding endstation 100 over slow expensive links 143 rediscovery 104 remote poll stage 98 99 report 131 scheduled 106 sizing 97 Spanning Tree 98 tree building 100 discovery process 92 discovery report example 862 discovery wiz...

Страница 904: ...rage of monitoring history 360 critical severity 322 deleting 335 device backup 784 disabling and enabling 349 event correlation 324 event list main window 327 event suppression 325 exporting the list to a CSV format file 337 high severity 322 internal 321 launching the list dialog box 326 list components 326 list menu 329 list table 327 list toolbar 329 list update was stopped 382 manually resolv...

Страница 905: ...tore and setup 799 bulk configuration 612 discovery discovery examples 134 generating reports on historical data 392 main window 88 NBX call processor 768 product activation 52 reports 861 RMON support 450 VLAN support 561 working with device properties 264 working with events 370 working with the map 212 export reports to CSV 456 exporting a graph 290 exporting high severity events 371 exporting ...

Страница 906: ...ng on network 192 free ports 457 G Generating Reports On Historical Data 385 Getting Started 35 graph exporting 290 zooming into 291 graphing errors on core switch links 450 utilization on a specific VLAN 451 graphs not available for an event 383 text displayed in 314 groups of devices 230 H hardware 860 hazards backup restore and setup 809 blocking SNMP HTTP and Telnet 662 HC RMON 406 high and wa...

Страница 907: ... 160 IfIndex device tree 235 IGMP configuring 605 inconsistent VLAN configuration on link 535 inconsistent VLAN IDs 535 inconsistent VLAN naming 535 information severity 321 internal TFTP server 664 Internet 814 direct connection to 812 inventory report 456 IP Ping monitoring 277 K key concepts live update 812 prioritizing network traffic 624 key considerations backup restore and setup 808 live up...

Страница 908: ...ialog box 280 display 282 menu 285 toolbar 284 tree 281 Live Update 811 live update activity report 825 components 813 connection type 812 direct connection to the Internet 812 download progress 821 download settings changing 822 key concepts 812 key considerations 831 select file groups dialog box 817 status 818 table of available updates 819 use browser settings 812 use custom proxy settings 812...

Страница 909: ... linking items 204 manual layout 201 manually modifying 202 modifying the layout 200 navigating to event sources 332 navigation 182 saved maps files associated with 226 saving and opening 206 selecting items 180 submaps 156 subnets 156 top level 156 updates 134 working with 151 zoom 182 map background menu 185 map files 62 map navigation 182 mapping file format 395 mapping file not updating 399 Ma...

Страница 910: ...ces 308 examples 308 extending the length of maintained history 313 IP Ping monitoring 277 items suitable for 279 line card 762 link 279 NBX call processor 761 non 3Com devices 279 phone 761 phone network 761 problems starting 315 service polling 278 SNMP MIB data retrieval 277 SNMP trap receipt 278 starting and stopping 293 techniques 276 monitoring history 360 monitoring mode 296 full monitoring...

Страница 911: ...ion and references 769 monitoring 761 no correct username password specified 772 phone not managed anymore 771 problem with the HTTP service 773 selecting the associated phones 762 stopped responding during the network discovery 773 troubleshooting 770 NBX NetSet 770 NBX phones attendant consoles 756 detection 95 NBX step prioritize network traffic 633 prioritizing network traffic 633 NBX voice ne...

Страница 912: ... 859 optimizations 131 options search by 197 options dialog box monitoring tab 305 Organizationally Unique Identifier OUI 177 OUI 177 out of date report information 470 P password 815 817 phone 230 added manually 771 phone network how 3Com Network Director discovers the 754 how 3Com Network Director monitors the 756 how 3Com Network Director represents the 754 monitoring 761 phones events related ...

Страница 913: ...rioritize network traffic NBX step 633 servers step 635 prioritized servers 635 Prioritizing Network Traffic 623 prioritizing network traffic application field values 637 applications 636 classification 624 configuration levels 655 dropping 629 NBX step 633 NBX voice 641 queuing 627 reports 638 resource warnings 657 restricting access to SNMP 648 SAP server 642 service levels 629 wizard 631 proble...

Страница 914: ... 240 VLANs tab 524 WAN link 249 protocol details button 526 protocol based VLANs 507 proxy port 815 proxy server 814 815 831 proxy settings custom 812 Q queuing prioritizing network traffic 627 R RADIUS client configuring the device as 599 rates poll 293 recurring event handling 324 recurring severity 322 redirection web cache 872 rediscovery 104 refreshing the events list 336 registering 3Com dev...

Страница 915: ...audit 674 agent update 673 capacity 457 custom 455 device backup 785 disk usage 470 export to CSV 456 feature reports 454 history 455 information out of date 470 inventory 456 prioritizing network traffic 638 selection sensitivity 454 resolved filter 342 resource warnings prioritizing network traffic 657 restore 777 examples 799 summary report 792 restoring to a replacement device 801 retry period...

Страница 916: ...stations 438 view 437 RMON matrix view dialog box 445 community string 446 matrix flow 446 stations 446 update rate 445 RMON statistics for a device 417 for link 419 viewing 417 RMON Support 403 RMON tables deletion 448 managing 447 RMONView window 407 file menu 408 menu bar 408 options menu 410 toolbar 414 update menu 413 view menu 409 window menu 414 router manager supported devices 848 RRD data...

Страница 917: ...events 356 setup 777 examples 799 summary report 798 severities event 321 severity colors 323 critical 322 high 322 information 321 recurring 322 severity filter 341 shortcut symbols 186 sizing device 96 smart event analysis 324 controlling 352 controlling per event smart event analysis 355 SNMP hazards of blocking 662 restricting access to 648 trap based events 321 SNMP MIB data retrieval 277 SNM...

Страница 918: ... backup restore and setup 805 Supported Devices 835 883 887 891 supported devices agent update 676 841 backup restore and setup 841 bulk configuration 619 device view 846 router manager 848 switch manager 848 SW not available device table 668 Switch 4400 674 switch manager supported devices 848 symbols shortcut 186 system information configuring 600 system requirements 859 operating system 859 T t...

Страница 919: ...ndow 414 zoom buttons 183 topology 62 determining 92 96 report 457 uncertain 167 unknown 100 topology report 132 trace path 188 537 filtered view 190 wizard 191 traffic prioritization configuring the network for end to end Traffic 630 translation MAC Addresses 177 trap destinations configuring 601 trap filtering 325 tree 154 device 233 navigation 187 selecting items 180 working with 151 troublesho...

Страница 920: ...ved events for a subnet 370 viewing VLANs 188 VLANs viewing 499 Visio exporting maps to 208 VLAN 77 84 236 238 default 504 IDs 84 VLAN concepts 508 VLAN names 517 VLAN routing button 527 VLAN Support 499 VLANs 802 1Q 502 about 500 adding an IP routing interface 547 benefits 501 changes report 536 checking the VLAN limit 546 checking VLAN connectivity 543 communication between 504 components 514 co...

Страница 921: ...otocols and related reading 569 summary of changes to be made 550 tab for a link 532 tab for devices for which there is no VLAN information available 531 tab for VLAN unaware devices 530 tagged and untagged membership 503 trace path 537 troubleshooting 570 viewing 188 VLAN IDs 523 W WAN clouds 104 web browser 859 web cache redirection 872 web management 474 493 web server analysis 393 what is RMON...

Страница 922: ...prioritizing network traffic 631 trace path 191 Working with Events 319 working with events 332 working with the map 151 examples 212 X XRN fabric 871 Z zoom 182 buttons 183 zooming graph 291 ...

Страница 923: ...materials not transferred Except as set forth above you may not transfer or assign the Software or your rights under this License Agreement Modification reverse engineering reverse compiling or disassembly of the Software is expressly prohibited However if you are a European Community EC resident information necessary to achieve interoperability of the Software with other programs within the meani...

Страница 924: ...HER IN CONTRACT TORT INCLUDING NEGLIGENCE STRICT PRODUCT LIABILITY OR OTHERWISE EVEN IF ANY REPRESENTATIVE OF 3COM OR ITS SUPPLIERS HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES NOTHING IN THIS AGREEMENT SHALL HAVE THE EFFECT OF LIMITING OR EXCLUDING 3COM S LIABILITY FOR DEATH OR PERSONAL INJURY CAUSED BY ITS OWN NEGLIGENCE DISCLAIMER Some countries states or provinces do not allow the exclu...

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