3Com 5124M-TPCL manual Troubleshooting Using the Port Status and Port Activity LEDs

Troubleshooting Using the Port Status and Port Activity LEDs

In certain situations, the Port Status and Port Activity LEDs may not light. This section describes troubleshooting using the:

❑Port Status LEDs

❑Port Activity LEDs

Troubleshooting Using the Port Status LEDs

A blinking Port Status indicator signals a problem with a port or a link connected to a port. Once a port detects a problem, you can further analyze the problem by counting the number of blinks. Table 4-1 provides troubleshooting suggestions for each of the blinking sequences.

Note: LEDs provide accurate information only when unused ports are disabled.

Table 4-1. Troubleshooting Using the Port Status LEDs

LED State	Indication	Possible Cause	Corrective Action
1 Blink	Link Failure	Cable not	Connect cable.
		connected.
		Cable defective.	Check cables with
			cable tester.
			Repair or replace
			cables.

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