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7-4

Troubleshooting

IP Configuration Errors

Troub

les

hoot

ing

IP Configuration Errors

If you are using IP communications, make sure your IP configuration param-
eters are set properly. Use the switch console’s IP Configuration function as
described in chapter 4. Incorrect IP configuration on the Switch Management
Module will prevent it from communicating with the network management
station, and may cause other network problems.

In particular, make sure you provide the Switch Management Module with a
unique IP address, and that you use the correct subnet mask for your network.

Diagnostic Tests

The HP AdvanceStack Assistant and switch console provide tests and indica-
tors that can be used to monitor the switch and its network connections.

Testing the Switch and Management Module

If you believe that the switch or its Management Module are not operating
correctly, remove and reinsert the power cord for that switch. This procedure
causes the switch and module to complete their power-on self test.

Normally, when the self test completes, the module’s Self Test LED and all
Fault LEDs on the switch and module will go OFF. If any error conditions exist
in the switch or the module, the LEDs should display the condition. See the

HP AdvanceStack Switch 208/224 Installation and Reference Guide

to

interpret the LED display for the switch. For the module, see the table under
“Checking the Module LEDs” at the beginning of this chapter.

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Содержание AdvanceStack 208

Страница 1: ...Installation and Reference Guide HP J3178A HP AdvanceStack Switch 208 224 Management Module YUMAMOD BK 0_ymfcvr fm5 Page 1 Thursday February 20 1997 12 54 PM ...

Страница 2: ...YUMAMOD BK 0_ymfcvr fm5 Page 2 Thursday February 20 1997 12 54 PM ...

Страница 3: ...HP AdvanceStack Switch 208 224 Management Module Installation and Reference Guide YUMAMOD BK 0_ymfrnt fm5 Page i Thursday February 20 1997 12 54 PM ...

Страница 4: ...otice HEWLETT PACKARD COMPANY MAKES NO WARRANTY OF ANY KIND WITH REGARD TO THIS MATERIAL INCLUDING BUT NOT LIMITED TO THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE Hewlett Packard shall not be liable for errors contained herein or for incidental or consequential damages in connection with the furnishing performance or use of this material Hewlett Packard assumes no...

Страница 5: ...FTP Library Service 1 FTP to Internet IP Address ftp ftp hp com 2 Log in as anonymous and press Return at the password prompt 3 Enter bin to set the transfer type 4 Enter cd pub networking software 5 Enter get filename to transfer the file to your computer then quit CompuServe 1 Login to CompuServe 2 Go to the hp service 3 Select HP Systems Disks Tapes etc 4 Select Networking Products library 5 Do...

Страница 6: ...in your country HP SupportPack Comprehensive Network Support provides complete prob lem resolution for medium to large interconnected local and wide area networks Contact your HP Authorized Reseller or the nearest HP Sales and Support Office for more information HP offers other hardware support services Please contact your reseller for more information Location Phone Number U S and Canada Only Dia...

Страница 7: ...Modem Cable Pin Out 3 5 Starting and Ending a Console Session 3 6 Main Menu Features 3 8 Screen Structure and Navigation 3 9 Using Password Security 3 11 Rebooting the Switch 3 15 Advanced Commands 3 17 4 Configuring the Switch From the Console Overview 4 1 Configurable Features 4 3 System Configuration 4 4 Port Configuration 4 5 IPX Service 4 6 Internet IP Service 4 8 Using Bootp 4 9 YUMAMOD BK y...

Страница 8: ... 5 4 Port Counters 5 5 Port Counters Show Details 5 6 Address Table 5 7 Port Address Table 5 8 Spanning Tree STP Information 5 10 Event Log 5 12 6 Using SNMP To Monitor and Manage the Switch Overview 6 1 SNMP Management Features 6 2 SNMP Configuration Process 6 3 Advanced Management RMON and EASE Support 6 4 RMON 6 4 EASE 6 4 7 Troubleshooting Checking the Module LEDs 7 2 Problem Solution Table 7 ...

Страница 9: ...m Configuration C File Transfers Overview C 1 Downloading an Operating System C 1 Using TFTP To Download the OS File C 2 Using the SNMP Based HP Download Manager C 4 Using the Switch to Switch Download C 4 Using the Zmodem to Download the OS File C 5 Troubleshooting TFTP Downloads C 6 Transferring Switch Configurations C 8 D Spanning Tree Operation Spanning Tree Protocol STP D 1 YUMAMOD BK yumamod...

Страница 10: ...viii YUMAMOD BK yumamod TOC Page viii Thursday February 20 1997 12 54 PM ...

Страница 11: ...atures to your switch Access to the switch console from which you can configure monitor and troubleshoot the switch Access to the switch from SNMP network management programs such as HP AdvanceStack Assistant for controlling the switch using an advanced graphics based interface Configurable full duplex port operation Configurable support for the Spanning Tree Protocol for switched networks Configu...

Страница 12: ...c electricity Handle the module by its edges and avoid touching the components and the circuitry on the board Equalize any static charge difference between your body and the switch by wearing a wrist static protector strap and attaching it to the switch s metal body or by frequently touching the switch s metal body while you are installing the module 1 Before installing the Switch Management Modul...

Страница 13: ...he rails on the sides of the switch s slot then push the module into the slot until it is firmly seated in the connector in the back of the slot Figure 1 3 Insert the Switch Management Module 4 Tighten the two screws that hold the module in place Be careful not to overtighten the screws Loosen these screws cover plate Switch Management Module YUMAMOD BK 1_yminst fm5 Page 3 Thursday February 20 199...

Страница 14: ... the two captured screws holding the module in the switch 3 Pull the module out of the slot 4 Replace the Management Slot cover plate C a u ti o n Replace the cover plate over the slot using the two screws that hold it in place Be careful not to overtighten the screws When using the switch the cover plate must always be installed This is required for safety and to ensure proper switch cooling At P...

Страница 15: ...ity counters to zero The counters are displayed in the switch console interface and through network management applications Clear Button used for these purposes When pressed by itself for at least one second deletes any switch console access passwords that you may have configured Use this feature if you have misplaced the password and need console access This button is provided for your convenienc...

Страница 16: ...he Management Module is executing its self test The self test normally takes approximately 10 seconds If the Self Test and Fault LEDs stay on for longer than this or if the Fault LED is flashing at any time an error has occurred on the module See chapter 7 Troubleshooting for more information on the LED and error recovery procedures Console RS 232 Port This port is used to connect a console to the...

Страница 17: ...ng loops that cause broadcast storms from occurring in the network topology By default STP is disabled on the switch You can use the switch console to enable STP operation see chapter 4 Configuring the Switch From the Console for those configuration procedures For more information on how STP works see appendix D Spanning Tree Operation Switch Console The Management Module has an RS 232 port to whi...

Страница 18: ...YUMAMOD BK 2_ymdesc fm5 Page 4 Thursday February 20 1997 12 54 PM ...

Страница 19: ...e the switch s event log and some advanced commands to help in troubleshooting Download new software N o te The Switch 208 224 and its Management Module are shipped with a factory default configuration that enables operation as a multiport learning bridge when installed in a network All ports are enabled Spanning Tree Protocol support is disabled and SNMP network management is enabled over IPX and...

Страница 20: ...nd one inbound Telnet session to be running simultaneously It can also simultaneously support one console session through the Console RS 232 port and one Telnet console session You can put security restrictions on console access by setting Manager level and Operator level passwords See Using Password Security later in this chapter Default Serial Communication Settings The default communication set...

Страница 21: ...ctor first attach a 9 pin to 25 pin straight through adapter at one end of the console cable Figure 3 1 Connecting a PC or Terminal to the Console RS 232 Port 2 Turn on the terminal or PC s power and if using a PC start the PC terminal emulation program 3 When you see this message Waiting for speed sense Press enter to continue Press Enter You will then see the switch console Main Menu See Startin...

Страница 22: ...in Out on next page b If necessary configure the PC or terminal to operate with the current serial link configuration of the Switch Management Module 3 At the site where the console is to be located connect the PC emulating a terminal or a terminal to the modem using a standard RS 232 C modem cable Make sure the terminal and modems are functioning properly then establish the link between the termi...

Страница 23: ...h console management of the switch at this time refer to the rest of this chapter for general console procedures to chapter 4 Configuring the Switch From the Console and to chapter 5 Monitoring Switch Operation From the Console Modem Cable Pin Out Modem end 25 pin male Switch end 9 pin male Signal 2 3 Tx 3 2 Rx 4 7 RTS 5 8 CTS 6 6 DSR 7 5 GND 8 1 CD OR DCD 20 4 DTR 22 9 RI 23 DRS typically on V 24...

Страница 24: ...sole displays a series of random and or unread able characters instead of the above prompt the Baud Rate setting for the terminal may be different from that of the console interface The switch s autosensing feature remedies this prob lem when you press any key You may have to press the key a few times Press Enter and go to the next step 3 A message indicating the baud rate at which the serial inte...

Страница 25: ...e Configuration menu See Rebooting To Activate Configuration Changes on page 3 16 If you have made configuration changes that require a reboot of the switch in order to take effect a Return to the Main Menu b Use the arrow keys v and to highlight Reboot Switch in the Main Menu and press Enter to reboot c When the reboot completes the switch automatically reestablishes the console connection and yo...

Страница 26: ...g the Switch From the Console LOGOUT Disconnects Telnet or modem access to the switch Refer to How To End a Console Session on page 3 7 Advanced Commands Provides access to a set of system manage ment monitoring and troubleshooting commands that generally require greater knowledge of networking These commands are listed at the end of this chapter under Advanced Commands and they are described from...

Страница 27: ...ns you see the current configuration for the item you have selected To change the configuration the basic operation is to 1 press E to select the Edit action 2 navigate through the screen making ALL the necessary configuration changes then 3 press Enter to return to the action line From there you can select to save the configuration changes or to cancel the changes Cancel returns the configuration...

Страница 28: ...ed values type in a value the help line instructs you to Enter a value 5 If youwant to change another parameter value return to step 3 6 Ifyouarefinishededitingparametersinthedisplayedscreen press Enter and do one of the following To save any configuration changes you have made or if you have made no changes press S for the Save ac tion To exit from the screen without saving any changes that you h...

Страница 29: ...igure the Connection Inactivity Time parameterin the Serial Linkconfiguration screen page 4 15 This causes the console session to end after the specified period of inactivity thus giving you added security against unauthorized console access Once a Manager password is set and the console session is ended access to the full console interface for any subsequent sessions requires the Manager password...

Страница 30: ... interface can operate the console with full manager privileges regardless of whether an Operator password is set It is recommended that if you want to restrict access to the console you should always set at least a Manager password Then if you also want to restrict access to the minimal Operator capabilities also set an Operator password Passwords are case sensitive The rest of this section cover...

Страница 31: ...assword Protection This procedure deletes both passwords Manager and Operator 1 Enter the console at the Manager level 2 From the Main Menu select Set Passwords You will then see the screen shown in figure 3 5 3 Select Delete Password Protection You will then see the following prompt Continue Deletion of password protection No 4 Press the Space bar or press Y to select Yes then press Enter 5 Press...

Страница 32: ...switch you will need the Manager password 1 Begin a console session at the Manager level by entering the Manager password when the password prompt appears 2 Select Set Passwords from the Main Menu 3 Select Delete Password Protection 4 When you see the prompt to continue deletion use the Space bar to select Yes then press Enter You will then see the following message Password protection removed Thi...

Страница 33: ...figuration changes that require a reboot Resetting statistical counters to zero Clearing the switch address table To Reboot the switch use the Reboot Switch option in the Main Menu If a Manager password has been previously set Reboot Switch appears only if this password is entered at the beginning of the console session Figure 3 6 The Reboot Switch Option in the Main Menu the Reboot Switch option ...

Страница 34: ...ve been made the switch console displays an asterisk next to the configuration menu item in which the change has been made For example if you change and save parameter values for the switch s IP configuration the need for rebooting the switch would be indicated by an asterisk appearing in the following screen Figure 3 7 Example of a Configuration Change Requiring a Reboot reminder to reboot the sw...

Страница 35: ...ed Commands in the Main Menu and press Enter 2 The command prompt appears near the bottom of the screen The text in the prompt matches the System Name parameter For example in the factory default configuration no system name configured the command prompt is DEFAULT_CONFIG 3 Type in the command you want to execute and press Enter For example to set the time to 9 55 a m you would execute the followi...

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Страница 37: ...nfigure certain switch parameters N o te In the factory default configuration the Spanning Tree Protocol STP is off However if the topology of your network includes any redundant data paths between switches or bridges you should enable support for STP See Span ning Tree Configuration page 4 17 Configuration Features The Switch Management Module enables you to configure the following switch feature...

Страница 38: ...get Help on the actions or data fields in each screen Use the arrow keys or v to select an action or data field The help line under the Actions menu describes the currently selected action or data field For guidance in how to navigate in a configuration screen see the instructions provided at the bottom of the screen or refer to Screen Structure and Navigation on page 3 9 pressing H or highlightin...

Страница 39: ... and select Configuration and the Configura tion menu appears as shown in figure 4 2 Figure 4 2 The Configuration Menu 2 Use the arrow keys and v to highlight the configuration topic you want then press Enter 3 Refer to the appropriate sections in the remainder of this chapter for information on configuring specific features YUMAMOD BK 4_ymcnfg fm5 Page 3 Thursday February 20 1997 12 54 PM ...

Страница 40: ...r page 4 8 or use the time and date commands available under Advanced Commands 10 Mbit s Port LED Mode Using this parameter the LEDs associated with the 10 Mbit s network ports on the switch can be configured to operate in one of two ways Link Activity In this mode each LED indicates the connection status of the port for 3 seconds after the network cable is first installed and every time the switc...

Страница 41: ...e online help for the screen To view this information select the Help action The read only fields in this screen display the port numbers and port types Figure 4 4 Example of the Port Configuration Screen The screen image in figure 4 4 shows the default Mode value for each of the port types available on the Switch 208 224 Select the Help action to see the other modes available for each port type r...

Страница 42: ...played in the Node Address field in the IPX Service configuration screen as shown in figure 4 5 and it learns the IPX network number by listening on the network In the IPX Service configuration screen you can disable IPX management by changing the IPX Enabled value to No You can also configure an IPX gateway frame encapsulation type so that the switch can be managed from a remote IPX network as de...

Страница 43: ...uration screen select IPX Service to display the above screen 2 Press E for Edit 3 If the IPX Enabled parameter is not already set to Yes the factory default then select this parameter and press the Space bar to select Yes 4 Select the Gateway Encap field and use the Space bar to select the appro priate gateway encapsulation for the gateway device 5 Press Enter then S for Save 6 Return to the Main...

Страница 44: ... address by setting the IP Config parameter to Manual Or you can use Bootp to configure IP for the switch from a Bootp server In this case you must also configure your Bootp server accordingly If you plan to use Bootp refer to Bootp Operation in chapter 6 Using SNMP to Monitor and Manage the Switch Otherwise set the IP Config parameter to Manual and then manually enter the IP address and subnet ma...

Страница 45: ...ever if an IP address has previously been configured or if the IP Config parameter has been set to Disabled then you will need to use this procedure to reconfigure the parameter to enable Bootp operation This procedure assumes that a Bootp database record has already been entered into an appropriate Bootp server and that the necessary network connections are in place Forsamples of Bootp servertabl...

Страница 46: ...tp server N o te The switch supports only the DHCP Dynamic Host Configuration Protocol implementations that are backwards compatible with Bootp The Bootp Process Whenever the switch reboots with the IP Config parameter set to Use Bootp the default Bootp requests are broadcast on all local networks When the Bootp server receives the request it searches its Bootp database for a record entry that mat...

Страница 47: ...user definedsymbolicnametohelpyoufindthecorrectsection of the bootptab file If you have multiple switches that will be using Bootp to get their IP configuration you should use a unique symbolic name for each switch ht is the hardware type For the HP AdvanceStack switch set this to ether for Ethernet This tag must precede the ha tag ha is the hardware address Use the Switch Management Module s 12 d...

Страница 48: ...o n Deleting the community named public disables many network management functions such as auto discovery traffic monitoring and threshold setting If security for network management is a concern it is recommended that you change the write access for the public community to Restricted How To Configure the Switch for SNMP Communities Ensure that the switch has been configured for IP and or IPX servi...

Страница 49: ... you want to restrict access to one or more specific management stations for a given SNMPcommunity listing the addresses of those stations on thisscreen creates that limitation For each SNMP Community you can authorize up to ten management stations by entering their IP and or IPX addresses into the Manager Address field 3 Enter the appropriate value in each of the above fields use the Tab key or a...

Страница 50: ...tch Trap packets describe specific event types These events are the same as the log messages displayed in the event log The protocol address and commu nity define which management stations receive the traps Check the event log to help determine why the authentication trap was sent Refer to chapter 3 for information on the event log Figure 4 9 The Trap Receivers Configuration Screen Default Values ...

Страница 51: ...t the console RS 232 configu ration to customize the connection with the PC terminal or modem you are using for console access Refer to appendix B Modem Configuration for information on modem settings Refer also to Console Configuration on the next page Figure 4 10 The Serial Link Configuration Screen Default Values YUMAMOD BK 4_ymcnfg fm5 Page 15 Thursday February 20 1997 12 54 PM ...

Страница 52: ...screens N o te Inbound Telnet is Telnet access to the switch console from another device Outbound Telnet which is using Telnet through the switch console to access another device is always enabled as long as the Switch Management Module has been configured with a valid IP address To configure an IP address for the switch refer to Internet IP Service Features on page 4 8 The Switch Management Modul...

Страница 53: ...l STP parameter values for the switch To configure the STP parameters In most cases the default STP param eter settings are adequate In cases where it is not use this procedure to make configuration changes C a u ti o n If you enable STP step 4 it is recommended that you leave the remainder of the STP parameter settings at their default values until you have had an opportunity to evaluate STP perf...

Страница 54: ...f you need information on STP parameters press Enter to select the Actions line then press H to get help 7 Repeat step 6 for each additional parameter you want to change 8 When you are finished editing parameters press Enter to return to the Actions line 9 Press S to save the currentlydisplayed STPparametersettingsand return to the Configuration menu The Spanning Tree configuration is automat ical...

Страница 55: ...switch for monitoring when monitoring is disabled If monitoring has already been enabled the screens will appear differently than shown in this procedure 1 Select Network Monitoring Port from the Configuration screen 2 In the Actions menu press E for Edit 3 If monitoring is currently disabled the default then enable it by pressing the Space bar or Y to select Yes Figure 4 13 The Default Network Mo...

Страница 56: ...want to monitor 7 Return to the Main Menu to select other functions You don t need to reboot the switch the Network Monitoring Port configuration is dynam ically activated N o te The port you select as the Monitoring Port is identified on the port status and counter screens and the port configuration screens with MP after the port number The port you select as the Monitoring Port cannot participat...

Страница 57: ...switch configuration changes it is a good idea to save the configuration in a secure location The configuration is contained in a file that can be transferred to a PC or server See Transferring Switch Configurations in appendix C File Transfers for the procedures to save your switch configuration YUMAMOD BK 4_ymcnfg fm5 Page 21 Thursday February 20 1997 12 54 PM ...

Страница 58: ...YUMAMOD BK 4_ymcnfg fm5 Page 22 Thursday February 20 1997 12 54 PM ...

Страница 59: ...witch Information Lists switch level operating information Port Status Displays the operational status of each port Port Counters Summarizes port activity Address forwarding Table Lists the MAC addresses of nodes the switch has detected on the network along with the corresponding switch port Port Address Table Lists the MAC addresses that the switch has learned from the selected port Spanning Tree...

Страница 60: ...s and Counters from the Main Menu to display the Status and Counters menu Figure 5 1 The Status and Counters Menu Each of the above menu items accesses the read only screens described on the following pages Refer to the online help for a description of the entries displayed in these screens YUMAMOD BK 5_ymmntr fm5 Page 2 Thursday February 20 1997 12 54 PM ...

Страница 61: ...OM read only memory code the MAC address of the Switch Management Module the identity of the expansion module if one is installed in the Expansion Slot in the back of the switch None indicates that no module is installed Router Rem Access indicates that a router module for example the HP J3138A Internet Router Module or a remote access module for example the HP J3230A LanRover 10A by Shiva is inst...

Страница 62: ...rt B a port B entry is displayed in the list ID the port ID number to use for SNMP MIB access Type the network technology type of the port Media the type of network media connected to the port Enabled whether the port is enabled Yes or No Status the operational status of the port Up operating correctly or Down not operating correctly Mode the port s operating mode Use the Help action item on this ...

Страница 63: ...ow details When you select the Show details action you are prompted to select the switch port A sample detailed port counters screen is shown in figure 5 5 N o te The Reset action on this screen and the Show Details screen resets the counter display to zero for the current session but does not affect the cumulative values in the actual hardware counters In compliance with the SNMP standard the val...

Страница 64: ...rt For defini tions of these counters use the Help action In addition to the counters this screen displays the status of the network connection to this port Link Status and the MAC address of the Switch Management Module This MAC address can be used to perform level 2 network connectivity tests link tests through this port See chapter 7 Troubleshooting for more information about link tests YUMAMOD...

Страница 65: ...termine which switch port is being used to access a specific device on the network The listing includes The MAC addresses that the switch has learned from network devices attached to the switch The port on which each MAC address was learned You can use the Search action at the bottom of the screen to locate a specific device MAC address YUMAMOD BK 5_ymmntr fm5 Page 7 Thursday February 20 1997 12 5...

Страница 66: ...ether a specific device MAC address is connected to the selected port To use the port address table 1 Select Port Address Table from the Status and Counters menu Figure 5 7 Example of How To Access the Port Address Table 2 When the Select Port prompt appears press the Space bar to display the number of the port you want to examine then press Enter See figure 5 7 above Each port is identified by it...

Страница 67: ...Console Figure 5 8 Example of a Port Address Table for a Specific Port In this example severalMACaddresses accessed through port 16 appear in the initial listing To view any additional addresses that may be in the listing use the Next page action YUMAMOD BK 5_ymmntr fm5 Page 9 Thursday February 20 1997 12 54 PM ...

Страница 68: ...Monitoring Switch Operation From the Console Spanning Tree STP Information Use this screen to determine current switch level STP parameter settings and statistics Figure 5 9 Example of Spanning Tree Information YUMAMOD BK 5_ymmntr fm5 Page 10 Thursday February 20 1997 12 54 PM ...

Страница 69: ...ing port type source MAC address cost priority operating state and designated bridge Figure 5 10 Example of STP Port Information C a u ti o n Because incorrect STP settings can adversely affect network performance you should avoid making changes without having a strong understanding of how STP operates For more on STP refer to appendix D Spanning Tree Operation and read the IEEE 802 1d standards d...

Страница 70: ...tedly C critical indicates that a severe switch error has occurred D debug reserved for HP internal diagnostic information Date is the date in mm dd yy format that the entry was placed in the log Time is the time in hh mm ss format that the entry was placed in the log System Module is the internal module such as ports for port manager that generated the log entry Event Message is a brief descripti...

Страница 71: ...receding or following the currently visible portion use either the actions listed at the bottom of the display Next page Prev page or End or the arrow keys as described in the following table Table 5 2 Event Log Control Keys Key Action N Advance the display by one page next page P Roll back the display by one page previous page v Advance display by one event down one line Roll back display by one ...

Страница 72: ...es and can be positioned to any location in the log The log status line at the bottom of the display identifieswhere in the sequence of event messages the display is currently positioned The event log will be erased if any of the following occurs The switch is reset by using the Reset button on the Switch Management Module Power to the switch is interrupted or the power is cycled A new operating s...

Страница 73: ...nd alone application running directly under Windows HP AdvanceStack Assistant provides complete control of your Switch 208 or 224 through its graphical interface In addition it makes use of the HP Embedded Advanced Sampling Environment HP EASE and RMON agent software that is on the Switch Management Module to provide powerful but easy to use traffic monitoring and network activity analysis tools T...

Страница 74: ...RFC 2037 HP Proprietary MIBs include Statistics for message and packet buffers tcp telnet and timep netswtst mib Port counters forwarding table and CPU statistics stat mib tftp download downld mib Integrated Communications Facility Authentication Manager and SNMP communities icf mib HP AdvanceStack Switch 208 224 configuration config mib HP Embedded Advanced Sampling Environment ease mib The Switc...

Страница 75: ...IPaddress Make sure the Bootp server is configured to support this switch Refer to Using Bootp on page 4 9 for more information c Manually configure an IP address Refer to page 4 8 for more infor mation 3 Configure the appropriate SNMP communities The public community exists by default and is used by HP s network management applications For more on configuring SNMP communities refer to page 4 12 4...

Страница 76: ...s from the HP AdvanceStack Assistant network management software included with your Switch Management Module EASE EASE Embedded Advanced Sampling Environment is a network monitoring and troubleshooting tool that analyzes traffic from a network wide perspec tive EASE notifies you about network problems and identifies the end node at fault That information can be used to set up RMON to study the pro...

Страница 77: ...pter covers these topics checking the Switch Management Module LEDs using the problem solution table checking for IP configuration errors using diagnostic tests resetting the switch clearing a password for the switch console HP Customer Support Services YUMAMOD BK 7_ymtrbl fm5 Page 1 Thursday February 20 1997 12 54 PM ...

Страница 78: ...y resetting the switch and module by pressing the Reset button on the module If the failure persists it may be due to incorrect module installation Remove power from the switch and try reinstalling the module This condition may also be caused by an incorrectly installed SIMM on the module While the module is removed verifythat the SIMM iscorrectly installed Apply power to the switch again If the f...

Страница 79: ...of the Management Module LEDs are on The Module may not be installed correctly Make sure the Module is fully inserted and screws are tightened I can t remember the console password to configureanddiagnosethe switch While the switch is on press the Clear button on the Management Module for at least 1 second Then release Then specify a new password to keep access to the switch restricted The steps a...

Страница 80: ...vide tests and indica tors that can be used to monitor the switch and its network connections Testing the Switch and Management Module If you believe that the switch or its Management Module are not operating correctly remove and reinsert the power cord for that switch This procedure causes the switch and module to complete their power on self test Normally when the self test completes the module ...

Страница 81: ...tch console interface See System Configuration in chapter 4 Configuring the Switch From the Console 2 Run network communication tests Use these tests if you have link beat detected for a port Choose one of the following ways to run a test of the network communication between the switch and an addressable device connected at the remote end of each of the cables you wish to test Select Link Test fro...

Страница 82: ... You should also verify that the remote device is powered on and functioning properly and that the cable is good If the switch passes its tests but the network test link test Ping test or IPXping test fails the problem is in the cabling the remote device or possibly the output circuitry of the switch s port A frequent problem is that the wrong type of network cable isused To connect the switch por...

Страница 83: ...est and Fault LEDs turn off Configuration reset This is a drastic action that interrupts switch operation clears any passwords clears the event log performs a complete self test and reboots the switch in its factory default configura tion You should consider performing a configuration reset only if you want all configurable parameters reset to the factory default values To execute this test perfor...

Страница 84: ...lear the password follow these steps 1 Verify the switch has powered up and passed self test 1 Press the Clear button on the Management Module for at least one second Note After the password has been cleared access to the switch from the console will no longer be password protected A new password can be assigned from the switch console Press the Clear button for at least one second 7_ymtrbl fm5 Pa...

Страница 85: ...onic services including the World Wide Web HP BBS HP FTP Library Service on the Internet CompuServ HP Network Phone In Support NPS HP FIRST FAX Retrieval Service See the perforated card at the beginning of this manual for information on how to get technical support Your HP authorized network reseller can also provide you with assistance both with services that they offer and with services offered ...

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Страница 87: ...t the end of the Safety and Regulatory Statements in the HP AdvanceStack Switch 208 224 Installation and Reference Guide Width 16 7 cm 6 6 in Depth 18 3 cm 7 2 in Height 4 5 cm 1 8 in Weight 2 3 kg 50 lb Operating Non Operating Temperature 0 C to 55 C 32 F to 131 F 40 C to 70 C 40 F to 158 F Relative humidity non condensing 15 to 95 at 40 C 104 F 15 to 90 at 65 C 149 F Maximum altitude 4 6 km 15 0...

Страница 88: ...B IETF Entity MIB RFC 1213 MIB II RFC 1515 Ethernet MAU MIB RFC 1573 Interface Evolution MIB RFC 1650 Ethernet Interface MIB RFC 1757 RMON MIB HP Switch Config MIB HP EASE MIB version 2 HP MIB Extensions Available on request Contact your HP authorized dealer or local HP sales office RFC 786 UDP RFC 791 IP RFC 792 ICMP RFC 793 TCP RFC 826 ARP RFC 854 Telnet RFC 951 Bootp RFC 1350 TFTP Novell IPX YU...

Страница 89: ...in a commercial environment This equipment generates uses and can radiate radio frequency energy and if not installed and used in accordance with the instruction manual may cause harmful interference to radio communications VCCI Class 1 For Japan Only European Community This equipment complies with ISO IEC Guide 22 and EN55022 Class A N o te This is a class A product In a domestic environment this...

Страница 90: ...YUMAMOD BK a_ymspec fm5 Page 4 Thursday February 20 1997 12 54 PM ...

Страница 91: ... or terminal 2 Install the modems in the appropriate locations Make sure the correct modem is installed in each location according to how it was configured The modems listed in this appendix have been tested and found to work properly with the Switch Management Module using the initialization strings shown Hayes Smartmodem Optima 28 8 V 34 Hayes Acura 288 V 34 FAX At the switch end Issue the follo...

Страница 92: ...itch end Issue the following AT command AT F C0S0 1 W0 At the user end Issue the following AT command AT F W At the user end Issue the following AT command AT F N0 W At the switch end Issue the following AT command AT F0 C2S0 1Q2 D3 W0 At the user end Issue the following AT command AT F0 W0 YUMAMOD BK b_ymmodm fm5 Page 2 Thursday February 20 1997 12 54 PM ...

Страница 93: ...ou can use any of the following methods whichever is more convenient the TFTP feature Download OS command on the console Main Menu HP s SNMP Download Manager a switch to switch file transfer the switch console s Zmodem capabilities in the console Advanced Commands The rest of this section describes these methods N o te Downloading a new OS does not change the current switch configuration The switc...

Страница 94: ...onic services refer to the perforated card at the front of this manual You know the name of the OS file stored in the TFTPserver For example j317801 cmp You have determined the IP or IPX address of the TFTP server in which the OS file has been stored N o te If your TFTP server is a Unix workstation ensure that the case upper or lower that you specify for the filename in the switch console Download...

Страница 95: ...wnload 7 A progress bar indicates the progress of the download When the entire operating system has been received all activity on the switch halts and the following message appears WRITING SYSTEM SOFTWARE TO FLASH BACK SOON After the system flash memory has been updated with the new operating system the Switch Management Module reboots itself and begins running with the new operating system 8 To c...

Страница 96: ...Wide Web site Refer to the Customer Support Services section in chapter 7 Trouble shooting The HP Download Manager also has detailed online help that can guide you through the procedures Using the Switch to Switch Download If you have two or more Switch 208 224s with Switch Management Modules installed and operating in the same network you can download the OS software from one Switch Management Mo...

Страница 97: ...listing 3 You will see a message asking if you want to overwrite the current OS Enter Y for yes to proceed You should then see the message Jumping to console code 4 At the Switch console prompt enter do for download 5 You will then see a message about invoking the console download utility and a prompt asking if you wish to continue Enter Y for yes to proceed 6 You will then see the following messa...

Страница 98: ...ed for the Protocol parameter Incorrect or unreachable address specified for the TFTP Server parame ter This may include network problems Try pinging the server to test the connectivity Incorrect name specified for the Remote File Name parameter or the specified file cannot be found on the TFTP server This can also occur if the TFTP server is a Unix machine and the case upper or lower for the file...

Страница 99: ...t connection to a terminal device or through Telnet was already running when you started the session in which the download was attempted N o te If an error occurs in which normal switch operation cannot be restored the switch automatically reboots itself In this case an appropriate message is displayed in the copyright screen that appears after the switch reboots You can display the same informati...

Страница 100: ...figuration with the newly retrieved configuration The switch then automatically reboots itself Command Function Get Download aswitchconfigurationfilefroma networkedPCorUnix workstation using TFTP Put Upload a switch configuration to a file in a networked PC or Unix workstation using TFTP ZGet UsesaZmodem compatibleterminal emulationprogram todownloadaswitch configuration file from a PC or Unix wor...

Страница 101: ...n Between the Switch and a PC or Unix Workstation The PC or workstation must be operating as a VT 100 or ANSI terminal and can be connected either directly or via a modem to the switch s console port Also the PC or workstation must be running a Zmodem compatible terminal emulation program If a manager password has been set you must log on to the switch using that password in order to execute the Z...

Страница 102: ...e in which the configuration is stored overwrite is one of the following optional values 0 the default allows a new file to be created but does not allow an existing file to be overwritten 1 creates a new file or overwrites an existing file dos unix is one of the following optional values 0 the default specifies the DOS file format 1 specifies the Unix file format If the PC or workstation does not...

Страница 103: ...ing in the switch is Off If you are using the switch to provide redundant network paths you should reconfigure the Spanning Tree Protocol to On Refer to Spanning Tree Configuration in chapter 4 Con figuring the Switch From the Console for procedures on enabling STP While allowing only one active path through a network at any time STP retains any redundant physical path to serve as a backup blocked...

Страница 104: ...of Logical and Redundant Paths Between Two Nodes node A switch A node B switch D switch B switch C 1 path cost 100 3 path cost 100 4 path cost 200 Active path from node A to node B 1 3 Backup redundant path from node A to node B 4 2 3 2 path cost 100 d_ymstp fm5 Page 2 Wednesday March 5 1997 4 18 PM ...

Страница 105: ...nection 3 3 Clear button description 2 1 for configuration reset 7 7 to clear password 3 13 clearing a password 7 8 command prompt 3 17 exit 3 17 commands for system management 3 17 communication protocols list of A 2 communities SNMP 4 12 configuration accessing the screen 4 3 Bootp 4 10 console 4 16 factory default 3 1 3 17 4 1 7 7 factory default of STP 4 1 4 17 features of 4 1 IP 4 8 IPX 4 6 n...

Страница 106: ...le session 3 7 event log controlling what displays there 4 16 description of 5 12 entering and navigating 5 13 for display of traps 4 14 how configuration reset affects it 7 7 meaning of severity code 5 12 why it clears 5 14 exiting from command prompt 3 17 F factory default configuration description 4 1 for spanning tree 4 1 resetting back to 7 7 failure of OS download C 6 of self test indication...

Страница 107: ...ddress 4 8 where to specify subnet mask 4 8 IP IPX download prerequisites C 2 IPX configuration of encapsulation 4 6 gateway 4 6 Gateway Encap 4 7 network number 4 6 IPX test 7 6 ipx mib supported standard on switch 6 2 L learning bridge 3 1 4 1 LEDs description of 2 1 during self test 1 4 Fault 2 2 Self Test 2 2 used for diagnostics 7 2 Link serial 4 15 link status for a port 5 5 link test 7 5 LO...

Страница 108: ...d failure C 6 switch to switch download C 4 troubleshooting C 6 version of switch 5 3 OS download effect on event log 5 14 Outbound Telnet description of 4 16 P packet traffic buffers amount of 5 3 password case sensitivity of 3 13 clear 7 7 deleting if lost 3 13 if incorrect 3 12 number of characters allowed 3 13 setting Manager and Operator 3 12 when prompt appears 3 6 path cost STP D 2 performa...

Страница 109: ...rver Bootp 4 8 setting a password 3 12 severity code definition of 5 12 SNMP 6 1 Communities screen 4 12 how to configure 6 3 how to configure communities 4 12 IP address 6 3 MIB access 5 4 public community 4 12 restricted access 4 12 traps 6 2 v2 agent 6 2 when configuration is activated 6 3 Spanning Tree blocking 4 17 caution 5 11 configuration screen 4 17 default 4 17 forwarding state D 1 globa...

Страница 110: ...ns C 8 trap receiver 6 3 where to configure 6 3 traps limit 4 14 SNMP 4 14 Trap Receivers Configuration screen 4 14 troubleshooting diagnostic tests 7 4 IP configuration errors 7 4 IPX test 7 6 link test 7 5 OS download C 6 Ping test 7 5 problems and solutions 7 1 testing the ports and links 7 5 testing the switch 7 4 using LEDs 7 2 Type column definition of screen display 5 4 U Unix TFTP server c...

Страница 111: ...YUMAMOD BK yumabcvr fm5 Page 9 Thursday February 20 1997 12 54 PM ...

Страница 112: ...on in this document is subject to change without notice Copyright 1997 Hewlett Packard Company Printed in USA 3 97 Manual Part Number 5966 5228 5966 5228 YUMAMOD BK yumabcvr fm5 Page 10 Thursday February 20 1997 12 54 PM ...

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