3Com 4005 Installation And Maintenance Manual

Also see for 4005: Key Information Guide Datasheet

Contents

3Com 4005 Installation And Maintenance Manual Manual pdf 65 page image

Troubleshooting Modules 65TroubleshootingModulesThis section describes troubleshooting for the interface modules and the SwitchFabric Management Module.Before you contact your supplier, a technical support vendor, or 3Com, writedetailed notes of the situation, including the order of events and who wasinvolved. In addition, have ready key information about your network, includingother equipment, applications, and protocols in use.Consider browsing the information on the support page of the 3Com Web site. Inparticular, the 3Com Knowledgebase may contain technical tips or otherinformation that may help you.For global 3Com contact information, see the Appendix A in this guide.Interface Modules If you suspect a problem with an interface module, carry out these steps beforecontacting your supplier, technical support vendor, or 3Com: Verify that all the LEDs on the module are functioning properly. If not, takenotes of what you believe are abnormalities. Ensure that the chassis is powered-up. Ensure that the module is correctly installed in the chassis. Ensure that devices at the other end of all links are powered-up and operatingcorrectly. Verify that all connectors on modules and all attached devices are correctlyengaged with the proper cabling. If you are using a fiber optic cable, clean the terminators by wiping them gentlywith a clean tissue or cotton bud that is moistened with a little ethanol. Dirtyfiber terminators impair the quality of the light that is transmitted through thecable. If a port is not operating, move its cabling to a different but functional port sothat you can determine if there is a problem with the cabling. If a module is not operating, remove it and install it in a different slot to see ifthat makes a difference. Write detailed notes of the situation, including the order of events and whowas involved. Have ready information about your network, including otherequipment, applications, and protocols in use.Switch FabricManagement ModulesIf you suspect a problem with a Switch Fabric Management Module (SFMM), carryout these steps before contacting your supplier, technical support vendor, or3Com: Under normal conditions when you install the SFMM, the status LEDs light todisplay the operating state. If the chassis is powered on, but the SFMMDiagnostic LED does not light, the SFMM has failed its self-diagnostic process. Verify that the SFMM is installed correctly by following the installationinstructions in this chapter.