3Com 9400 Getting Additional Help, Diagnosing Problems, Power Failures, Abnormal LED Activity

6 TROUBLESHOOTING THE SYSTEM

This chapter explains how to troubleshoot certain problems with the CoreBuilder® 9400 system. It covers:

■Getting Additional Help

■Diagnosing Problems

■Cleaning Dirty Fiber Optic Ports and Connectors

Getting Additional Help

If you experience system problems that are not addressed in this chapter, contact your network supplier or 3Com Technical Support. Before you call, gather the following information and have it available:

■System serial number

■Maintenance agreement, or date of purchase and warranty information from the last pages of this guide.

■Software revision number

■Brief description of the problem

You can view some of this information in the Administration Console. From the top-level menu, enter system display. In the WebConsole, select the System folder and then click Summary.

For additional information and phone numbers, see Appendix D.

Diagnosing Problems

By observing system diagnostics, you can identify and correct problems that might occur when the system powers up.

Power Failures

If the system does not respond when you insert the power cord, see the troubleshooting suggestions in Table 7.

Abnormal LED Activity

The CoreBuilder 9400 system has LEDs that indicate system or port problems. If you see abnormal LED activity, see Table 8 and Table 9 for troubleshooting suggestions.