3Com 7000 manual Troubleshooting, Problem Recommended Action

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8

TROUBLESHOOTING

This chapter explains how to troubleshoot specific problems you may encounter during power-on and system operation. It also shows how to perform related diagnostic tasks, such as replacing fuses or cleaning fiber optic cables.

If you experience problems that are not addressed in this chapter, contact 3Com Technical Support (see Appendix E).

Solving Common The following problems may arise while working with the CoreBuilder®

Problems7000 family ATM switch. If your problem does not appear on this list, view relevant statistics and parameters using the Administration Console menus (refer to the CoreBuilder 7000 Family ATM Switches Management Guide). You can also contact 3Com Technical Support. Also, be sure to read through the release notes.

Table 13 Recommended Action for Common Problems

Problem

Recommended Action

 

 

Terminal does not

If the control terminal is physically connected to the CoreBuilder 7000 family ATM switch,

show anything

but does not load the Administration Console Menus, verify that your terminal setup

 

matches the specifications (see “Connecting the Control Terminal” on page 46). Also,

 

make sure your cable is configured as DCE (see “Ethernet Cabling” on page 118).

 

 

Port cables do not

If the cables attached to the CoreBuilder 7000 family ATM switch interface ports do not

work

work, check that the connectors are firmly snapped in place. Also, make sure that each

 

wire connects to Rx on one end and Tx on the other.

 

 

ACT LED not blinking

When the CoreBuilder 7000 family ATM switch is activated, the switch module and

 

interface cards ACT LEDs should be blinking. If not, verify that the switch module and

 

interface cards are properly inserted. Make sure that the control terminal is connected to

 

the control port correctly, as an incorrect connection of this cable sometimes results in the

 

inability of the system to function properly.

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Contents Software Version 4.55 Base and Extended 3Com Corporation 5400 Bayfront Plaza Santa Clara, California Contents Installing and Connecting Corebuilder Modules Configuring the Corebuilder 7000 Family ATM Switch Troubleshooting Glossary 3COM Corporation Limited Warranty Page Finding Specific About this GuideInformation This GuideConventions Icon DescriptionConvention Description Documentation CoreBuilder Family ATM Switch DocumentsDocument 3Com Part Number CoreBuilder 7000 Family ATM Switches Operations GuideIf you want to Read MapComments YearCompliance Overview Overview Summary ComponentInstallation Stage Chapter Interface ModuleFans Stage Chapter Overview Unpacking Instructions Family ATM SwitchUnpacking CoreBuilderUnpacking Instructions Safety Precautions Family ATM SwitchMesures de sécurité Vorsichtsmaßnahm enPreparation InstallationTable Top As shippedPreparation For installation Universal Mounting Hole Pattern Family ATM Switch Core Builder Modules Power Supply Supply Module Installing a Power To install a power supply moduleSwitch Module Module to ensure operation should the main switch moduleModule, see in the Operations Guide Module Setting up Switch Module Redundancy You should see the following display RedundancyPreparatory Steps General Description of the ProcedureProcedure Execution NMS-Based Lane Redundancy Setup Hardware Redundancy SetupLecs Elan database does not transfer automatically Verifying Lane Redundancy SetupInstalling and Connecting Corebuilder Modules ATM Interface Daughter Cards Port Interface ModuleShows the E-3 daughter card Port ATM Interface Module Switch to different types of network devices Connecting toFan Tray Network DevicesOC-3 SM Fiber Optic Power Budget of 3Com ProductsCoreBuilder SM-1300 SDX-1155B ATM port MM-820 15.1 Selecting a Power Cord Plugging in the Unit POWER-ON System StatesHow they are indicated on the LED display Color Description Source I LPort Interface Module LEDsList the permanent 4-port interface module panel LEDs Link Status LOS Color DescriptionPOWER-ON Login screen appears Configuring Corebuilder 7000 Family ATM SwitchLogging in to Topics covered in this chapter includeIntegrated Fast SetupChassis-wide VLANs Chassis-oriented SetupFull Setup Mode Switch Setup ModeSetup Mode Selection Setting Special Parameters Setup Section DescriptionSections Default Parameter Values Following message appears on the screenType To Go Pnni is available in version 4.5 extended only Pnni Parameters Enter Pnni Node Level 0 to 104 Factory default is Your choice is displayedAs in , select the capacity of Bank Configuring the Corebuilder 7000 Family ATM Switch Pnni is available in version 4.5 extended only Configuring the Corebuilder 7000 Family ATM Switch Integrated Fast Setup Configuring the Corebuilder 7000 Family ATM Switch Type To perform Following shows a typical virtual network configurationEthernet port Belongs To VN # 1-17 Integrated Fast Setup Configuration Additional SwitchIntegrated Fast Setup configures a minimum set of network Some additional configuration tasks might beConfiguring Network Prefix and ATM Addresses Configuring SVCsConfiguring a PVC Configuring Clock SynchronizationVPI/VCI Menu Option Path DescriptionStoring RetrievingParameters Configuring the Corebuilder 7000 Family ATM Switch SYS\ 3 LOA \6 TCU Enter the name of the file to receive the data on disk Loading a Single Configuration Data TypeFollowing messages are displayed for each data type Upload status is displayed as followsLoading the Other Data Type For loading a single item you can enter a full file nameConfirm the download Utility Batch file name Download status is displayed as followsFollowing methods System is now in operational mode Method 1 Shift OMethod 2 dbgoff.bat Migrating from E-IISP to Pnni Redundancy Corebuilder 7000 Family ATM Switch Redundant Power SupplyTypes of Power Supplies CoreBuilder 7000 family power supplies are shown in Table Load SharingOverloading Port and 8-port ATM Interface Cards ATM Physical ModulesCoreBuilder 720X Ethernet/ATM Interface Card CoreBuilder 76XX Fast Ethernet Interface Card CoreBuilder 74XX Ethernet/ATM Interface CardATM Data Center with high-density Fast Ethernet Data Closet EthernetOther applications Providing Redundancy for Various Power LoadsPower Supply 90A AC Power Supply Specifications 40A DC Power SupplyParameter Channel Heat Dissipation W Heat Dissipation BTU Problem Recommended Action TroubleshootingTroubleshooting Power SupplyFamily ATM switch power supply Problem Possible Cause Recommended ActionProcedure Action Safety Precautions for Fiber Optics ConnectorsTroubleshooting Switching Module Specifications CoreBuilder Management and Interface LEDs Switch Module Power SupplyStandards supported Interface CardInterfaces CoreBuilder Management and Interface ConnectorsPage Bodily Harm Safety InformationSchäden KörperlicheDommages CorporelsSchäden am Gerät Appendix B Safety Information Requirements Site RequirementsThermal Wiring ClosetRecommendations ConsiderationsDistribution Rack Ambient temperature and humidityLocation codes or some type of floor grid matrix Distribution rack refer to FigureAppendix C Site Requirements Installing New Cabling If you are installing new cabling, follow these guidelinesCabling Requirements Jumper location, and any additional information ATM CablingAccordingly Used at the siteFiber optic cable Dirt on the Fiber Optic LensDamaged Transceiver Due to Excessive Insertion Force Specification Description Comparing Fiber to SpecificationsNumerical Aperture Type of Insertion Loss ExampleMHz km / 2 km = 250 MHz MHz km / xkm = y MHzCategory Specifications Descriptions Single Mode Fiber Specifications Category Output power Mixed Fibers combination Serial Port Pinouts CoreBuilder 7000 Serial PortPin Male Pin Female Pin Signal MeaningCoreBuilder 7000 Serial Port To Modem Port Pin Male Appendix D Cabling Requirements Services ServicesTechnical Support Online TechnicalUsername anonymous Access by Analog ModemHours a day, 7 days a week Country Data Rate Telephone NumberAccess by Digital Modem 847 262408 727 Country Telephone Number Asia, Pacific Rim Europe, South Africa, and Middle EastCountry Telephone Number Fax Number Appendix E Technical Support Glossary Glossary Glossary Communications Glossary Glossary Glossary OAM Channel Glossary Glossary Glossary Index PVC Hardware kit LES Fast 56 setup mode full UNI Setup 39 virtual LAN Index 3Com Corporation Limited Warranty Warranties Exclusive
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7000 specifications

The 3Com 7000 is a robust and versatile networking solution designed to meet the demands of enterprise environments. Renowned for its reliability and scalability, the 3Com 7000 is highly suitable for organizations requiring efficient data handling and enhanced network performance. This multi-layer switching platform integrates advanced technologies, making it a preferred choice for modern businesses.

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