3Com 3C16371 - LinkBuilder FMS - Hub User Manual Download

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Repeater Management

DUA1663-0BAA0

Media Type

(Read-only) This field shows the media type for the

standby port. Refer to

Table 3-4

on page 3-37

for the different media

types.

Link State

(Read-only)

This field shows the connection state of the

standby port. Refer to

Table 3-5

on page 3-39

for the different states.

Pair State

(Read only) This field shows the state of the currently active

selected resilient pair, if any. Possible values are:

■

Active - The link pair is enabled, and either the main port or the

standby port is capable of carrying traffic.

■

Not in use - The link pair is disabled.

■

Both Failed - Although the link pair is correctly configured, both

links have failed.

■

Invalid - The state of the repeater has changed since the link pair

was configured, and the link pair now does not conform to the

resilient link rules (see earlier in this section). An example is where

the Disable on Boot switch of the unit with the standby port has

been changed to Enable.

Active Port

(Choice Field)

Main

/Standby

Select the port you want to carry the traffic.

Pair Enable

(Choice Field)

Enabled

/Disabled

Use this field to enable or disable the resilient link pair. If you disable a

link pair, both the main and standby ports will be disabled.

Standby Links Available

(List Box) The list box shows the Unit ID and

Port ID of the possible standby links for the selected main link. These

are all the Disable on Boot ports that are not already part of a resilient

link pair. To select a standby link, move the cursor to the list box and

use the arrow keys until the desired link is highlighted, then press

[Return]. The unit and port identifiers of the selected unit will be

copied into the Standby Unit ID and Standby Port ID fields.

APPLY

(Button) Move the cursor to this button and press [Return] to

configure the resilient link pair. When the link is configured, you are

returned to the previous screen.

Summary of Contents for 3C16371 - LinkBuilder FMS - Hub

Page 1: ...SUPERSTACK II HUB 10 MANAGEMENT USER GUIDE MANAGEMENT MODULE 3C16630A ADVANCED RMON MODULE 3C16632 Part No DUA1663 0BAA03 Revision 01 Published September 1996 ...

Page 2: ... forth in subparagraph c 1 ii for restricted Rights in Technical Data and Computer Software clause at 48 C F R 52 227 7013 3Com Ireland c o 3Com Limited ISOLAN HOUSE Brindley Way Hemel Hempstead Herts HP3 9XJ UK For civilian agencies Restricted Rights Legend Use reproduction or disclosure is subject to restrictions set forth in subparagraph a through d of the Commercial Computer Software Restricte...

Page 3: ...ement Module 1 3 SuperStack II Hub 10 Advanced RMON Module 1 4 2 INSTALLATION AND SETUP FOR MANAGEMENT Safety Information 2 1 Installing the Management or Advanced RMON Module 2 1 Unpacking 2 2 Disconnecting the Unit 2 2 Removing the Blanking Plate from the Hub 10 Unit 2 2 Inserting the Hub 10 Module 2 3 Removing the Hub 10 Module 2 5 Power Up Sequence 2 6 LEDs and Reset Button 2 7 Front Panel MGM...

Page 4: ...anager 2 11 3 USING THE VT100 MANAGEMENT INTERFACE Introduction 3 1 User Interface 3 1 Screens 3 1 Screen Components 3 2 Special Keystrokes 3 4 Screen Map 3 5 Getting Started 3 6 Main Banner 3 6 Logon 3 7 Main Menu 3 9 Logoff 3 9 Auto Logout 3 10 Setup 3 10 Trap Setup 3 13 Serial Port Setup 3 15 User Access Level 3 17 Local Security 3 18 Create User 3 20 Delete Users 3 21 Edit User 3 21 Repeater M...

Page 5: ...tandards A 1 BABT Approval A 1 Electrical A 2 Processor and Memory A 2 Cable Pin Outs A 3 Protocol Addresses A 5 IPX Addresses A 5 IP Addresses A 5 Obtaining a Network Number A 6 B TECHNICAL SUPPORT On line Technical Services B 1 3Com Bulletin Board Service B 1 World Wide Web Site B 2 ThreeComForum on CompuServe B 2 3ComFacts Automated Fax Service B 3 Support from Your Network Supplier B 3 Support...

Page 6: ...MON SmartAgents E 2 The SuperStack II Hub 10 RMON Implementation E 4 The Management Information Base MIB E 5 Counters E 7 Counters and RMON Alarms E 7 Using Alarms E 11 Audit Log E 12 F INDEX OF MANAGEMENT ACTIONS AND DATA INDEX ELECTRO MAGNETIC COMPATABILITY STATEMENT FCC Statement 1 CSA Statement 1 LIMITED WARRANTY ...

Page 7: ...ck II Hub 10 Management Module and SuperStack II Hub 10 Advanced RMON Module and use them to manage SuperStack II stacks via the VT100 interface or an SNMP application A stack is one or more units such as SuperStack II Hub 10 12 Port TP which you connect together to function and manage as a single logical repeater Throughout this guide Module can be taken to refer to either product The guide is wr...

Page 8: ... to access the facility remotely using a modem and a VT100 terminal or a PC using terminal emulation software How to access the facility remotely over a TCP IP network using Telnet How to access the facility locally or remotely from a workstation running SLIP using Telnet or SNMP management This guide does not Show you how to install SuperStack II Hub 10 units Explain how to manage units using an ...

Page 9: ...Windows based Transcend range please refer to the appropriate manual Transcend Enterprise Manager for UNIX Part No DUA2785 0AAA0X If you are looking for Turn to An overview of the features of the Modules and how to make best use of them Also details of compatibility with LinkBuilder FMS FMS II 10BT and 10BTi Chapter 1 Details of how to install the Module into your SuperStack II Hub 10 Chapter 2 In...

Page 10: ...nying documentation and read the sections that describe how to manage SNMP devices Telnet If you wish to manage your SuperStack II Hub 10 stack via Telnet you will need to refer to the manual s supplied with your Telnet host application as well as this guide SNMP We recommend the following publication for an easy to read description of SNMP The Simple Book by Marshall T Rose SBN 0 13 812611 9 publ...

Page 11: ... Enter vs Type When the word enter is used in this guide it means type something then press the Return or Enter key Do not press the Return or Enter key when an instruction simply says type Text represented as screen display This typeface is used to represent displays that appear on your terminal screen and details that you enter for example Username Keys When specific keys are referred to in the ...

Page 12: ... Security Architecture MAC Media Access Control MAU Medium Access Unit MIB Management Information Base NVRAM Non Volatile Random Access Memory PROM Programmable Read Only Memory RMON IETF Remote Monitoring MIB SLIP Serial Line Internet Protocol SmartAgent Intelligent agent software SNMP Simple Network Management Protocol TCP Transfer Control Protocol Telnet A virtual terminal service protocol TFTP...

Page 13: ...nk immediately and automatically takes over Implement security features For example each user is assigned an access level that determines which management parameters the user can view or modify Also end station access can be restricted to a particular port Monitor network performance The management facility maintains statistics that assist you to monitor the operation of the network and perform pr...

Page 14: ... or remotely via a modem This method provides a way of managing the stack in situations where the LAN is not providing a reliable service or where the network manager does not have direct LAN connectivity Any changes made to the configuration of a device using one method of access will be reflected in the configuration seen by all other methods of access Using SNMP management you can access RMON s...

Page 15: ... units in the stack Some SNMP network management applications assume that unit 1 is at the top of the stack If you install the module in the bottom unit the stack may be depicted by the application in reverse order to the actual arrangement of units The narrower FMS units if used should be positioned at the top of the stack If you have a stack containing both a LinkBuilder 10BTi unit and a Hub 10 ...

Page 16: ...dule supports all nine groups of RMON SuperStack II Hub 10 Advanced RMON Module The SuperStack II Hub 10 Advanced RMON Module 3C16632 can be installed wherever its companion module 3C16630A may be used including the earlier LinkBuilder FMS II modules See the list above The module supports comprehensive highly accurate advanced RMON statistics for heavily loaded networks ...

Page 17: ... Module The Modules contain static sensitive components that can be irreparably damaged by static generated by the human body Do not touch the components on the circuit board Ensure that you only handle the Module by holding it by the edges We recommend that wherever possible you use a wriststrap or other earthing method whilst installing or removing the Module to prevent damage by static discharg...

Page 18: ...e and connect it to the unit Reinstall and power up all the units in the stack as described in the section Power Up Sequence on page 2 6 Unpacking Remove the Hub 10 Module from its packaging taking care not to touch any of its components or connectors In addition to this manual the package should contain The Hub 10 Module as ordered 1x M2 5x25 cross head screw and crinkle washer If any of these it...

Page 19: ...he Hub 10 Module CAUTION Before you install the Module set the position of the Disable on Boot switch on the Hub 10 unit If you want to set up resilient links change the position from the factory default E enable all ports to D disable all ports See the user guide for the Hub 10 unit for details To manage Resilient Links see Port Resilience on page 3 39 1 With the components facing downwards locat...

Page 20: ...s will be twisted as shown in that illustration below Failure to ensure that the connector is correctly oriented can result in damage to the module when the unit is powered up Figure 2 3 Detail Of The Hub 10 Connector 3 Connect the management connector C to the unit expansion connector directly below it on the unit Make sure the connectors are fully pushed in 4 When the connectors are in place sli...

Page 21: ... stack as described in the section Power Up Sequence on page 2 6 Removing the Hub 10 Module If you need to remove the module perform the following steps 1 Disconnect all the units in the stack from the mains power supply Disconnect the unit with the Module from the other units in the stack 2 Unscrew the three module retaining screws and slide the Module partly out to expose the connecetors 3 Disco...

Page 22: ...panel of the unit will flash during the self test At the end of the self test The MGMT LED on the front panel of the management unit will light up steady green The appropriate UNIT number LED on each unit in the stack will light If the MGMT LED is off colored red or flashing refer to LEDs and Reset Button on page 2 7 As a default the Module powers up the unit with A null IP address The serial port...

Page 23: ...n Pressing the Reset button causes the Module to be reset This has the same effect as executing the Reset command see Reset on page 3 48 The Configure LED will go on for a few seconds after the Reset button is pressed Green steady The Module is operational and no problems are indicated Green flashing Software is being downloaded see Software Upgrade on page 3 50 or a self test is being performed s...

Page 24: ...to the pin outs given in Appendix A Chapter 3 describes the VT100 management interface in detail Connecting a VT100 Terminal To connect a VT100 terminal directly to the serial port you need a standard null modem cable See Appendix A for the pin out information Connect one end of the cable to the serial port on the Module and the other to the serial RS232 port on the VT100 terminal The Module autom...

Page 25: ...nnect the workstation will depend on its manufacturer and model The general guidance given above for terminals will be useful here You must also configure your workstation to use SLIP Consult the operator manuals of your workstation for details You must configure the serial port of the Module to accept SLIP This involves setting up the SLIP parameters address and subnet mask You can set up the SLI...

Page 26: ...er you will need to configure the stack s IP parameters before the SNMP manager can communicate with the stack To do this perform the following steps 1 Connect a VT100 terminal configured to 9600 baud character size 8 stop bit 1 parity none to the Module s serial port 2 Log on to system see Logon on page 3 7 3 Select Management Setup from the Main Menu See Main Menu on page 3 9 4 Use the Managemen...

Page 27: ...that your Telnet application is emulating a VT100 terminal To open the Telnet session you must specify the IP address of the stack that you entered in step 2 above Check the user manual supplied with the Telnet facility if you are unsure how to do this Once the connection is established you will see the main banner of the VT100 management interface and you may log on The VT100 management interface...

Page 28: ...enter the IP configuration of the stack Use the VT100 interface to set up parameters including trap addresses Perform the following steps 1 Connect a VT100 terminal or emulator to the serial port and logon using the VT100 interface Refer to Getting Started on page 3 6 for details of how to do this 2 Display the Setup screen see Setup on page 3 10 If using IP enter the Device IP Address and Device ...

Page 29: ...ded into sections that cover management tasks These sections broadly follow the division suggested by the main menu Each screen is described and the access level needed to access the screen is indicated Access levels are a security measure and are described in Logon on page 3 7 User Interface We suggest you read through this section before you use the facility for the first time After you should o...

Page 30: ...at your installation Access levels are described in the section Screen Components on page 3 2 Screen Components The main part of a typical screen contains several different types of item Table 3 1 gives an example of each component and explains its use In the descriptions of the options given in this chapter the default values are underlined Errors 10000 Packets FCS Errors Alignment Errors Short E...

Page 31: ... is information that you cannot change OK Button Text for a button is shown in upper case letters A button carries out an action A menu screen such as the Main Menu consists of a number of buttons arranged in a column Other screens have a row of buttons at the bottom To actuate a button move the cursor to the button and press Return The OK and CANCEL buttons appear on many screens OK updates the s...

Page 32: ...ning fields If you are using Telnet or a terminal emulation program you may find that some control keys do not operate or that they activate other functions The Windows terminal emulator uses Ctrl H as backwards deletion whereas others use it for backward cursor movement Consult the manual accompanying your Telnet or terminal emulation software before using the control keys Tab Moves the cursor fr...

Page 33: ...User Interface 3 5 DUA1663 0BAA03 Screen Map This diagram shows how the menus are related to each other ...

Page 34: ...ter size are identical If you are using Telnet or SLIP the wake up procedure is performed automatically When the wake up procedure is successfully completed the main banner is displayed Figure 3 2 Main Banner Screen The main banner screen has a concealed field which can be revealed using an SNMP manager by entering text in the sysName MIB object This field is convenient for defining the Module you...

Page 35: ...or the Module The maximum speed is 9600 baud Autoconfigure is disabled If you are unable to obtain the banner screen it is possible that the autoconfigure option has been disabled Check the configuration of the terminal If you cannot resolve the problem refer to Appendix C for further troubleshooting information Once the Main Banner screen is displayed press Return to display the Logon screen Logo...

Page 36: ...n page 3 49 If you are not logging on as one of the default users your system manager will have assigned you a user name and password The user name determines which of the three access levels monitor manager or security you have The user name and passwords are case sensitive To logon to the facility enter your user name and password in the appropriate fields and select OK The Main Menu screen will...

Page 37: ...Edit User on page 3 21 To carry out a particular management task scroll to the relevant option and press Return The remaining sections of this chapter describe the various Main Menu options Logoff If you have finished using the facility select the Logoff option from the bottom of the main menu If you accessed the facility using a Telnet session or modem connection the connection will be closed aut...

Page 38: ...the display changes to the Auto Logout screen This screen is shown below Figure 3 5 Auto Logout Screen The Auto Logout screen requests you to enter your password again If the password is correctly entered the screen that was active when the timer expired is re displayed If you make a mistake in entering your password you will be returned to the Logon screen Setup You use the Setup screen to config...

Page 39: ... effect the change Default Router Text Field If necessary enter the IP address of the default router on your network BootP will do this automatically If you change this field reset the Module to effect the change SLIP Address Text Field SLIP Serial Line Internet Protocol allows IP to run over the serial port instead of the network SLIP allows you to use out of band Telnet or SNMP management either...

Page 40: ...rial Port Setup on page 3 15 BootP Select Choice Field Enabled Disabled When enabled BootP allows you to download the IP address the SubNet Mask and the Router IP address from a BootP server on your network When operative BootP checks that a valid IP address is not installed before sending out requests for the data It will keep on sending requests for data until one of three conditions is satisfie...

Page 41: ... 3 48 SETUP TRAPS Button Press Return when the SETUP TRAPS button is highlighted to set up the parameters for traps see Trap Setup below SERIAL PORT Button Press Return when the SERIAL PORT button is highlighted to set up the RS 232C port parameters see Serial Port Setup on page 3 15 CANCEL Button Press Return when the CANCEL button is highlighted to abandon this screen without actioning any chang...

Page 42: ...lic Throttle Text Field To prevent a remote network manager receiving too many traps at once you can configure the stack to transmit traps with a delay between each trap If several traps are generated at once they will be transmitted with the specified delay between them The unit of throttle is one thousandth of a second The default value is 100 which gives a delay of one tenth of a second between...

Page 43: ...hange the serial port parameters with Auto Config already set to Enabled or if you change Auto Config to Enabled you will need to perform the wake up procedure see Main Banner on page 3 6 before communication is re established Connection Type Choice Field Local Remote Select Remote if you want to manage the stack via a modem DCD Control and DSR Control will be enabled Otherwise leave this paramete...

Page 44: ...h your VT100 terminal Note that the setting made by automatic configuration is not displayed on the screen The displayed setting is that which will be adopted when automatic configuration is next disabled Set this field to Enabled if you require automatic configuration To start automatic configuration detecting and setting the correct speed the wake up procedure typing Return Return must be perfor...

Page 45: ...el Create User This screen allows you to create another user who can access the management facility in addition to the default users Delete Users This screen allows you to remove users other than the default users Edit User This screen allows you to change your own password and community string The first three screens are only available for users with security access level Select the option for th...

Page 46: ...as Monitor This allows the user to view the essential operations of the stack and to establish whether or not the stack is operating correctly A user at this level cannot change the operating parameters of the stack or gain access to any of the setup menus Secure Monitor In this implementation Secure Monitor has the same rights as Monitor Manager This allows the user to monitor and change the oper...

Page 47: ...ield Enabled Disabled To prevent access to the management facilities via the serial port disable access to the facility for each access level To allow you to configure the stack locally in the event of problems on your network we suggest that you change the default password see Edit User on page 3 21 for the permanently enabled security access level Remote Telnet Choice Field Enabled Disabled Teln...

Page 48: ...e number of SNMP remote management sessions Figure 3 11 Create User Screen User Name Text Field Enter the name of the user The name can be up to 10 characters The user name is case sensitive Password Text Field Enter a password for this user The password can be up to 10 characters The password is case sensitive and will not be displayed on the screen Access Level Choice Field Monitor Secure Monito...

Page 49: ... screen This option is available only for users with security access level Figure 3 12 Delete Users Screen Select the users to delete from the List Box using the spacebar then move the cursor to the DELETE USERS button and press Return You cannot delete the current user in other words the user name you used to logon or any of the default users monitor manager or security Edit User You access the E...

Page 50: ... change any fields To set a new password enter the password in both the New Password and Confirm Password fields If you forget your password refer to the advice in Appendix C Repeater Management This section is the most important for configuring the stack to operate correctly on your network There are three levels at which you can manage the stack and three management activities Management Levels ...

Page 51: ...an be useful to help you get the best out of your network Setup Setup allows you to configure various parameters for the repeater and individual units and ports In many cases the default settings are suitable for typical operation but it may be a advisable to disable unused ports to prevent unauthorized access to the network Resilience You can configure resilient links to protect critical communic...

Page 52: ... 3 14 Using The Repeater Management Screen The example screen below shows the screen with port level management selected Figure 3 15 Repeater Management Screen 3Com SuperStack II Repeater Management STATISTICS SETUP RESILIENCE CANCEL Management Level Unit ID Port ID Port 1 1 ...

Page 53: ...3 3 provides a summary of port numbering Table 3 3 Port Numbering Unit Product Media Port Numbers AUI Transceiver Module Tcvr 3C16250 FMS 12 port Coaxial 1 to 10 left to right Tcvr 11 AUI 13 3C16265 FMS 6 port ST Fiber 1 to 6 left to right Tcvr 7 AUI 8 3C16271 FMS 12 port RJ45 TP 1 to 12 left to right AUI or Tcvr 13 3C16371 FMS 24 port RJ45 TP top 1 to 12 left to right bottom 13 to 24 left to righ...

Page 54: ...his button is not displayed when Unit is selected CANCEL Button Move the cursor to this button and press Return to go back to the main menu Repeater Statistics You access the Repeater Statistics screen from the Repeater Management screen by selecting management level Repeater then actuating the STATISTICS button The statistics given are the aggregated counters for all the ports in all the units in...

Page 55: ...g the repeater counters affects all users and clears the counters for all the units and ports on this repeater CANCEL Button Select this button to go back to the Repeater Management screen without clearing the counters Repeater Setup You access the Repeater Setup screen from the Repeater Management screen by selecting management level Repeater then actuating the SETUP button The Repeater Setup scr...

Page 56: ... passed on start up or during a self test this field will show Operational If the field is blank or displays any other message check the Fault Log screen for further information See Fault Log on page 3 47 Repeater Resilience Resilient Links can be set up ONLY on Hub 10 and FMS II units You access the Repeater Resilience screen from the Repeater Management screen by selecting management level Repea...

Page 57: ...may be on the same module or on different modules Each port in the pair can be attached to different media Each resilient pair consists of a main port and a stand by port When the pair is operating normally the main port carries data to and from the segment attached to the port However if the Module detects a loss of link link test pulse for twisted pair medium or loss of light idle signal for fib...

Page 58: ...ee Appendix E WARNING Security may be set up at the same time as Resilience but only using a network manager Figure 3 18 Repeater Resilience Screen All the fields are read only To change the configuration of a resilient link select the link then select OK The Port Resilience screen showing details of the chosen link will be displayed MAIN Unit This field shows the identifier of the unit that the m...

Page 59: ...n changed to Enable Active Port This field shows which port is carrying the traffic the main port or the standby port Pair Enable This field shows whether the resilient link pair is currently enabled or not Possible values are Enabled Unless both links have failed the link is operational Disabled Both the main and standby ports are disabled CANCEL Button Move the cursor to this button and press Re...

Page 60: ...CLEAR COUNTERS Button For users with an access level of manager or higher Move the cursor to this button and press Return to reset all the unit statistics counters to zero Clearing the unit s counters affects all users and clears the counters for all the ports on this unit CANCEL Button Move the cursor to this button and press Return to go back to the Repeater Management screen without clearing th...

Page 61: ...fier of the unit you have selected This should be the same as that indicated by the Unit LED on the front of the chosen unit The unit fitted with the Module is always unit 1 Unit Type This field displays the product name or specification of the chosen unit Unit Hardware Revision This field indicates the hardware revision of the unit You may need to quote this number to your supplier s technical su...

Page 62: ... up with all ports enabled including AUI and transceiver module ports For an existing unit or replacement unit of the same type the management facility then disables each port whose Port State in the Port Setup screen is currently set to Disabled Active Power Supply This field indicates which power supply is currently active Internal the built in power supply is active External The redundant backu...

Page 63: ...294967295 is reached the counter will roll over reset to zero automatically After this event the individual figures may give a false impression of network conditions if taken in isolation All the fields are read only Refer to Appendix D for a detailed description of the statistics fields Unit ID This field identifies the unit the port belongs to Port ID This field shows the number of the selected ...

Page 64: ... higher Move the cursor to this button and press Return to reset all the port statistics counters to zero Clearing the port s counters affects the statistics viewed by all users CANCEL Button Move the cursor to this button and press Return to go back to the Repeater Management screen Port Setup You access the Port Setup screen from the Repeater Management screen by selecting management level Port ...

Page 65: ... enable or disable a port that is the main or standby port of a resilient link pair Security Choice Field Enabled Disabled All SuperSatck II Hub 10 units all LinkBuilder FMS II 3C16665 and 3C16672 modules and other LinkBuilder FMS II Modules with serial number prefixes of 0200 or greater offer the more sophisticated security function detailed Table 3 4 Media Types Media Type Description AUI Standa...

Page 66: ...the designated Hub 10 units you can set up secure resilient pairs using a Transcend management application Follow the instructions in the manual for that application Unauthorized Device Action Choice Field Off Report Only Disconnect And Report This field specifies the action to be taken when an unauthorized device is detected on the port The management facility detects an unauthorized device when ...

Page 67: ...ropriate LEDs even if there is no connection You cannot disable the link pulse for a port that is the main or standby port of a resilient link pair Link State Read only This field shows the connection state of each port Lost Links Read only The number of times the link has been lost since the Module was last reset Partition State Read only This field shows whether or not the port has autopartition...

Page 68: ... display the Port Resilience screen Now you can specify the standby unit and port See the field descriptions below If the port you intended to use as standby is not shown in the list box the unit which contains the port is not set for Disable on Boot Change the switch position and reset the unit 3 Reconnect the unit with the standby ports on it to the network To delete or change the configuration ...

Page 69: ...o that it is Disabled on Boot This ensures that a loop will not be created when the unit boots up This means that a standby port can be configured only on a Hub 10 or an FMS II unit and that the Disable on Boot switch see Figure 2 1 on page 2 3 on the unit must be set to Disable Refer to the unit s user manual for instructions on how to set the switch The resilient link pair must only be defined a...

Page 70: ... Media Type Read only This field shows the media type for the main port Refer to Table 3 4 on page 3 37 Link State Read only This field shows the connection state of the main port Refer to Table 3 5 on page 3 39 for the different states Standby Unit ID Text Field This field shows the unit identifier of the unit that the standby port belongs to You can either enter the identifier of the chosen stan...

Page 71: ...this section An example is where the Disable on Boot switch of the unit with the standby port has been changed to Enable Active Port Choice Field Main Standby Select the port you want to carry the traffic Pair Enable Choice Field Enabled Disabled Use this field to enable or disable the resilient link pair If you disable a link pair both the main and standby ports will be disabled Standby Links Ava...

Page 72: ...tton and press Return to go back to the previous screen either the Repeater Management screen or the Repeater Resilience screen Remote Poll The Remote Poll screen allows you to see if a remote device is responding by sending a message forcing a response from the target device This will determine if there is a path or a congested path between this device and other devices on the network To display ...

Page 73: ...f there is no response This facility is only available through SNMP management Status The Status screen provides read only information about the Module To display the screen select the STATUS button on the Main Menu screen Figure 3 25 Status Screen System Up Time seconds This field indicates how long the unit has been running since the last reset See Reset on page 3 48 for a description of resetti...

Page 74: ...umber in case you ever need to contact your technical support representative Upgradeable Software Version This is the version number of the software image stored in the Flash EPROM Please make a note of this number in case you ever need to contact your technical support representative The version number will be automatically updated when you download new software Boot Software Version This is the ...

Page 75: ...generated the fault Make a note of this information which will be useful to your technical support representative in resolving the fault Fault Number The hexadecimal number in this field provides an indication of the type of fault It is for 3Com internal use only Record any information on this screen and contact your Technical Support service for advice 3Com SuperStack II Fault Log This informatio...

Page 76: ... actuate the RESET button on the Main Menu screen This is only available to users with manager access level or higher Figure 3 27 Reset Screen Resetting the stack in this way is similar to powering off and on the unit containing the Module None of the setup information will be lost CAUTION Performing a reset may cause some of the data being transmitted onto the network to be lost Select the OK but...

Page 77: ...ctuate the INITIALIZE button on the Main Menu screen Figure 3 28 Initialization Screen Select OK to perform the initialization CAUTION Use this operation with great care The unit configuration is cleared from memory and cannot be recovered All user information except the IP parameters will be lost and only the default users will be available All ports will be set to their hardware default values w...

Page 78: ...The protocol used for downloading is TFTP running over UDP IP or IPX and will only work over the network not via the serial port To perform the download a remote TFTP server must be set up File Name Text Field Enter the name of the file that contains the software image to be downloaded to the Module You will be prompted with a file format appropriate to the Module This will be FMAxx_xxx slx for th...

Page 79: ...ectory If so you must give the full path to the file and the filename using a maximum of 30 characters Server Address Text Field Enter the IP or IPX address of the device where the software file containing the image of the Module facility can be found OK Button Select this button to start the software download When the download is being performed the MGMT LED will flash green and the screen will b...

Page 80: ...3 52 CHAPTER 3 USING THE VT100 MANAGEMENT INTERFACE DUA1663 0BAA03 ...

Page 81: ...1983 Class A FCC Part 15 Class A IEC 801 parts 2 5 EN55022 Class B EN50082 1 Environmental IEC 68 to 3Com Schedule Operational 0 C to 50 C BABT Approval For UK Users only The SuperStack II Hub 10 units fitted with a Management Module or Adavnced RMON Module are covered by Oftel General Approval NS G 12345 J 100003 for indirect connection to a public telecommunications system This can be achieved u...

Page 82: ...r SuperStack II Hub 10 Advanced RMON Module Power Consumption 3C16665A 46 VA 3C16670A 28 VA 3C16671A 34 VA 3C16672A 34 VA Power Dissipation 3C16665A 156 BTU hr 3C16670A 94 BTU hr 3C16671A 115 BTU hr 3C16672A 115 BTU hr Processor and Memory Management Module Flash EPROM 512 Kbytes RAM 512 Kbytes Processor 10MHz 68000 Advanced RMON Module Flash EPROM 512Kbytes RAM 4Mbytes Processor 20MHz 68000 ...

Page 83: ...rminal PC or modem to the serial port RS 232C management port Null Modem Cable RS 232C 25 pin to RS 232C 25 pin RS232C Serial Port 25 pin male Screen TxD RxD Ground RTS CTS DSR DCD DTR 1 2 3 7 4 5 6 8 20 Screen RxD TxD Ground RTS DTR CTS DSR DCD 1 3 2 7 4 20 5 6 8 always required required for handshaking n c n c only required if screen ...

Page 84: ... 25 pin RS232C Serial Port 25 pin male TxD RxD Ground RTS CTS DSR DCD DTR RI 2 3 7 4 5 6 8 20 22 RxD TxD Ground RTS DTR CTS DSR DCD RI 2 3 5 7 4 8 6 1 9 n c n c always required required for handshaking n c n c RS232C Serial Port 25 pin male Screen TxD RxD RTS CTS DSR Ground DCD DTR 1 2 3 4 5 6 7 8 20 1 2 3 4 5 6 7 8 20 Screen TxD RxD RTS CTS DSR Ground DCD DTR ...

Page 85: ...ber to each network that wishes to connect to the Internet The second part 100 120 in the example identifies the device within the network Assigning unique device numbers is your organization s responsibility If you are unsure of the IP addresses allocated to you consult your network administrator If you do not have an Internet address see Obtaining a Network Number on page A 6 If you are the mana...

Page 86: ...work numbers The details are correct at the time of printing but they may change USA InterNIC Network Solutions Attention InterNIC Registration Services 505 Huntmar Park Drive Herndon VA 22070 Telephone 1 800 444 4345 Toll Free 1 619 455 4600 1 703 742 4777 You can also send e mail to the addresses listed below hostmaster rs internic net host domain network changes and updates action rs internic n...

Page 87: ...ttention Asia Pacific Network Information Centre APNIC DOM c o Computer Centre University of Tokyo 2 11 16 Yayoi Bunkyo ku Tokyo 113 Japan Admin Contact Nakayama Masaya MN89 Telephone 81 3 3812 2111 ext2720 e mail nakayama nic ad jp Technical Contact Conrad David DC396 Telephone 81 3 3580 3781 or 81 3 3580 3784 Fax 81 3 3580 3782 e mail davidc apnic net ...

Page 88: ...A 8 APPENDIX A TECHNICAL INFORMATION CABLE PIN OUTS AND PROTOCOLS DUA1663 0BAA03 ...

Page 89: ...mated fax service 3Com Bulletin Board Service 3ComBBS contains patches software and drivers for all 3Com products as well as technical articles This service is available via modem or ISDN seven days a week 24 hours a day Access by Modem To reach the service by modem set your modem to 8 data bits no parity and 1 stop bit Call the telephone number nearest you Country Data Rate Telephone Number Austr...

Page 90: ...rticles from 3TECH 3Com s award winning technical journal and more ThreeComForum on CompuServe ThreeComForum is a CompuServe based service containing patches software drivers and technical articles about all 3Com products as well as an interactive forum for technical questions To use ThreeComForum you need a CompuServe account To use ThreeComForum 1 Log on to CompuServe 2 Enter go threecom 3 Press...

Page 91: ...r Many suppliers are authorized 3Com service partners who are qualified to provide a variety of services including network planning installation hardware maintenance application training and support services When you contact your network supplier for assistance have the following information ready Diagnostic error messages Country Fax Number Hong Kong 852 2537 5610 U K 44 1442 278279 U S 1 408 727...

Page 92: ...e U S and Canada contact your local 3Com sales office to find your authorized service provider These numbers are toll free Country Telephone Number Country Telephone Number Australia Sydney 61 2 959 3020 Japan 81 3 3345 7251 Melbourne 61 3 653 9515 Mexico 525 531 0591 Belgium 0800 71429 Netherlands 06 0227788 Brazil 55 11 546 0869 Norway 800 13376 Canada 416 498 3266 Singapore 65 538 9368 Denmark ...

Page 93: ...thorization RMA number A product sent to 3Com without an RMA number will be returned to the sender unopened at the sender s expense To obtain an RMA number call or fax 05 17 96 Country Telephone Number Fax Number U S and Canada 800 876 3266 option 2 408 764 7120 Europe 31 30 60 29900 option 5 44 1442 275822 Outside Europe U S and Canada 1 408 492 1790 1 408 764 7290 ...

Page 94: ...B 6 APPENDIX B TECHNICAL SUPPORT DUA1663 0BAA03 ...

Page 95: ...orrectly by pressing Return Return Check the settings on your terminal or emulator The parity must set to none the stop bit 1 and the character size 8 The management facility s autoconfiguration works only with speeds from 1200 to 9600 baud Possibly autoconfiguration is disabled If you still cannot access the device perform a reset by pressing the Reset switch at the rear of the Module once Now ch...

Page 96: ...e s IP address is correctly recorded by the SNMP manager refer to the user manual for the manager The Telnet workstation cannot access the device Check the device s IP address subnet mask and default router are correctly configured see Setup on page 3 10 and the device has been reset see Reset on page 3 48 Ensure that you enter the IP address correctly when invoking the Telnet facility Traps are n...

Page 97: ...eset switch You forget your password and cannot log in If you are not one of the default users monitor manager or security another user having security access level can log in delete your user name and create a new user name for you with a new password Alternatively another user having security access level can log in and initialize the device as described in Initialization on page 3 49 This will ...

Page 98: ...C 4 APPENDIX C TROUBLESHOOTING DUA1663 0BAA03 ...

Page 99: ...y check the cable and cable connections for breaks or damage Auto Partitions The number of times the port or ports have automatically partitioned Autopartitioning occurs when excessive more than 64 consecutive collisions occur at a port Autopartitioned ports are automatically reconnected when the fault is rectified Frequent partitions can indicate that there is a problem in the cabling between two...

Page 100: ...apter card of the device connected to the port that is the source of the problem If the card appears to be operating correctly check the cable and cable connections for breaks or damage Occasionally the problem may be caused by interference from other cables or machinery Good Frames This is the total number of frames with no errors seen by the repeater unit or port Examining this statistic regular...

Page 101: ... re route any cabling which may be affected by external noise sources Too Long Frames Too Long Frames are frames that exceed the maximum size for 802 3 frames 1518 octets If you see a high number of such frames you will need to isolate the source of these frames and examine the transceiver or adapter card at the device However some network protocols cause these frames Total Collisions Collisions a...

Page 102: ...mber of frames addressed to a single MAC address that is a single device seen at the repeater unit or port Very Long Events A very long event is an event that will cause Jabber Lock Up protection to operate This statistic shows how many times the repeater has had to protect against jabber seen at a port Isolate the source of very long events and check that the transceiver or adapter card in the de...

Page 103: ...nicates with the Probe and collects the summarized data from it The console does not have to be on the same network as the probe and can manage the probe by either in band SNMP or out of band connections The IETF defines the following groups of information supplied by ethernet RMON probes Statistics Total LAN statistics History Time based statistics for trend analysis Alarms Triggered when statist...

Page 104: ... informs the network management console directly when the network has entered an abnormal state The console can then use more information from the probe such as history information and packet capture to perform additional diagnoses 3Com Transcend RMON SmartAgents However RMON does require one probe per LAN segment segments are separated by bridges or routers and standalone RMON probes have traditi...

Page 105: ...which allows the hub to ping another device on the network and record the response time An RMON Alarm can be associated with that response time so that when the response time from the server is poor because of an overloaded server or faulty cable the hub can inform the network administrator automatically additional Actions on Event are also available when alarm thresholds are exceeded to automatic...

Page 106: ...lities may be Table E 1 RMON Group Configurations Group Initial Configuration Effect of Power Cycle on Configuration Ethernet Statistics 1 session monitoring the Ethernet repeater traffic configuration lost Stats History 3 default sessions a 60 second interval 120 historical samples stored b 30 second intervals 120 historical samples stored c 30 minute intervals 96 historical samples stored config...

Page 107: ...e if you need memory hungry statistics for instance prolonged packet capture sessions The Management Information Base MIB At the heart of all network management is the Management Information Base or MIB It cannot be stressed too much how important it is to understand the nature of the MIB if you are to achieve the maximum potential offered by the management system The MIB is a formal structured se...

Page 108: ...ype of information is considered for this counter a3ComEtherStatEntry 15 In simple terms this tells us 1 The formal name of the counter is 3ComEtherStatTxBytes 3Com Ethernet Statistics Transmit Bytes 2 The counter is to be found in a table called 3ComEtherStat 3 The counter is the 15th column in the table It is not necessary to know and understand the MIB in order to manage a network With most man...

Page 109: ... or as long as you find convenient These rates will be more meaningful than spot values and may be compared to provide more useful data There is a sound reason for using differences The counters cannot be infinite They will roll over return to zero when they reach their limit Thus a low value may or may not be truly representing the situation A negative difference indicates that roll over has occu...

Page 110: ...m thresholds specific to the activity of the counter being monitored For autocalibration the high threshold is set to 5 above the high tide mark Also the low threshold is set to 20 below the high tide mark see diagram above Manually you may choose any value for the thresholds using your network manager The tide marks are monitored continually during normal running to provide data for later calibra...

Page 111: ... running value has exceeded the high threshold If an action has been assigned to the high threshold that action will be performed 2 No action will be taken because the value has not fallen below the low threshold before rising above the high threshold This gap between high and low thresholds is called Alarm Hysteresis 3 The running value has fallen below the low threshold If an action has been ass...

Page 112: ... port Turn port off Enable port Turn port on Notify and switch resilient port Send Trap If port is the Main of a resilient pair then switch to standby Notify and blip module Send Trap Turn all ports on module off Turn ports back to original state after 5 seconds Notify and disable module Send trap Turn all ports on module off Notify and enable module Send Trap Turn ports back to original state Bli...

Page 113: ...es The system alarms can be modified but cannot be created or deleted by a user The default values are given in the table below Table E 3 Smart Object Default Values Once alarms have been set up on a module in a particular slot they will be retained against that slot in any new configuration This situation may be made clearer by the following examples If a module is removed and replaced by a simil...

Page 114: ...port will disabled for 5 seconds allowing the storm to subside and preventing the storm from reaching the rest of the network Audit Log The Module keeps an audit log of all management user sessions providing a record of changes to the configuration database MIB The log can be read only by a manager at the security i e highest access level using an SNMP network manager Each entry in the log is in t...

Page 115: ...tains a code letter for the type of parameter presented The meanings of these code letters is tabulated below The Page column gives the page number in the current user guide where the use of the parameter is described The Screen column gives the title of the screen where the parameter appears Code letter Meaning B Button to next screen C Choose from toggle list D Direct action button E Enter text ...

Page 116: ...adcast Frames R 3 26 Repeater Statistics Broadcast Frames R 3 31 Unit Statistics Broadcast Frames R 3 35 Port Statistics Char Size R 3 15 Serial Port Setup Screen CLEAR COUNTERS D 3 26 Repeater Statistics CLEAR COUNTERS D 3 31 Unit Statistics CLEAR COUNTERS D 3 35 Port Statistics Community String C 3 21 Edit User Screen Community String E 3 20 Create Users Screen Community String E 3 13 Setup Trap...

Page 117: ... 47 Fault Log FCS Errors R 3 26 Repeater Statistics FCS Errors R 3 31 Unit Statistics FCS Errors R 3 35 Port Statistics Filename E 3 50 Software Upgrade Flow Control C 3 15 Serial Port Setup Screen Good Frames R 3 26 Repeater Statistics Good Frames R 3 31 Unit Statistics Good Frames R 3 35 Port Statistics Good Octets R 3 26 Repeater Statistics Good Octets R 3 31 Unit Statistics Good Octets R 3 35 ...

Page 118: ...3 28 Repeater Resilience Main Unit ID R 3 39 Port Resilience Management Level C 3 22 Repeater Management Media Type R 3 35 Port Statistics Media Type R 3 39 Port Resilience Media Type R 3 36 Port Setup Multicast Frames R 3 26 Repeater Statistics Multicast Frames R 3 31 Unit Statistics Multicast Frames R 3 35 Port Statistics New Password E 3 21 Edit User Screen Node R 3 10 Setup Screen Number of Re...

Page 119: ...RESILIENCE B 3 22 Repeater Management Round Trip Time R 3 44 Remote Poll Runt Frames R 3 26 Repeater Statistics Runt Frames R 3 31 Unit Statistics Runt Frames R 3 35 Port Statistics SECURITY B 3 9 Main Menu Security C 3 36 Port Setup SELF TEST B 3 9 Main Menu Serial Port Security C 3 18 Local Security Screen SERIAL PORT B 3 10 Setup Screen Server IP Address E 3 50 Software Upgrade SETUP B 3 9 Main...

Page 120: ...E B 3 9 Main Menu System Up Time R 3 45 Status Screen Target Address E 3 44 Remote Poll Throttle E 3 13 Setup Traps Screen Time since reset R 3 47 Fault Log Too Long Frames R 3 26 Repeater Statistics Too Long Frames R 3 31 Unit Statistics Too Long Frames R 3 35 Port Statistics Total Collisions R 3 31 Unit Statistics Total Collisions R 3 35 Port Statistics Total Errors R 3 26 Repeater Statistics To...

Page 121: ...Setup Unit Port Capacity R 3 33 Unit Setup Units Available R 3 27 Repeater Setup Unit Type R 3 33 Unit Setup Unit Type R 3 31 Unit Statistics Upgradeable Software Version R 3 45 Status Screen User List S 3 21 Delete User Screen User Name E 3 7 Logon Screen User Name E 3 10 Auto Logout Screen User Name E 3 20 Create User Screen User Name E 3 21 Edit User Screen Very Long Events R 3 26 Repeater Stat...

Page 122: ...F 8 APPENDIX F INDEX OF MANAGEMENT ACTIONS AND DATA DUA1663 0BAA03 ...

Page 123: ...e version 3 46 BootP 3 12 BootP select 3 12 broadcast frames D 1 bulletin board service B 1 button APPLY 3 43 CANCEL 3 3 OK 3 3 reset 2 7 buttons 3 3 C cable pin outs A 3 CANCEL button 3 3 char size serial port setup 3 16 choice fields 3 3 community SNMP access 3 19 community string changing 3 21 entering 3 21 network manager 3 14 trap 3 14 CompuServe B 2 configure LED 2 7 connection type serial p...

Page 124: ...0 in band management 2 9 initialization screen 3 48 IP address allocation of A 6 format A 5 network manager 3 14 repeater setting up 3 11 IP parameters entering for quick start 2 10 IPX address network manager 3 14 IPX network 3 12 K keys Ctrl B 3 4 Ctrl K 3 4 Ctrl P 3 4 Ctrl R 3 4 Tab 3 4 L last restart type 3 46 last source address 3 36 late events D 2 LEDs 2 7 link pulse 3 38 link state 3 39 3 ...

Page 125: ... setup screen 3 36 port state 3 37 port statistics screen 3 35 port type 3 36 power consumption A 2 power dissipation A 2 power supply status 3 34 power up sequence 2 6 Q quick start for SNMP management 2 9 R rear panel configure LED 2 7 redundant backup power supply 3 34 remote poll screen 3 44 remote telnet access 3 19 repeater health 3 28 repeater management screen 3 23 repeater resilience scre...

Page 126: ...n connecting to serial port 2 9 software image version number 3 46 software upgrade 3 50 software upgrade screen 3 50 source address changes 3 36 speed serial port setup 3 16 stacking units 1 2 standards A 1 standby links available 3 43 standby port 3 30 3 42 standby unit 3 30 3 42 starting the management facility 3 6 statistics glossary of terms D 1 port 3 35 repeater 3 26 unit 3 31 status screen...

Page 127: ... 32 3 33 units available 3 27 upgradeable software version 3 46 user access level screen 3 17 user interface overview of 3 1 user name 3 20 users access level 3 20 changing community string 3 21 changing password 3 21 creating 3 20 default 3 8 deleting 3 21 password 3 20 V version number flash EPROM 3 46 hardware 3 46 PROM software 3 46 very long events D 4 VT100 terminal connecting 2 8 W wake up ...

Page 128: ...6 ...

Page 129: ...es uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference with radio communications Operation of this equipment in a residential area is likely to cause harmful interference in which case the user will be required to correct the interference at his own expense CSA Statement This Class A digital apparatus me...

Page 130: ...ELECTRO MAGNETIC COMPATABILITY STATEMENT DUA1663 0BAA03alpha ...

Page 131: ...o updates are provided 3Com s sole obligation hereunder shall be at 3Com s discretion to refund the purchase price paid by Customer for any defective software products or to replace any defective media with software which substantially conforms to 3Com s applicable published specifications Customer assumes responsibility for the selection of the appropriate applications program and associated refe...

Page 132: ... ATTEMPTS TO REPAIR OR ANY OTHER CAUSE BEYOND THE RANGE OF THE INTENDED USE OR BY ACCIDENT FIRE LIGHTNING OR OTHER HAZARD Limitation of Liability IN NO EVENT WHETHER BASED IN CONTRACT OR TORT INCLUDING NEGLIGENCE SHALL 3COM BE LIABLE FOR INCIDENTAL CONSEQUENTIAL INDIRECT SPECIAL OR PUNITIVE DAMAGES OF ANY KIND OR FOR LOSS OF REVENUE LOSS OF BUSINESS OR OTHER FINANCIAL LOSS ARISING OUT OF OR IN CON...

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