Cisco Systems ME 4924-10GE manual Troubleshooting the Hardware Components, Gbic-invalid global

Chapter 4 Troubleshooting

Troubleshooting the Hardware Components

Table 4-1 Common Problems and Solutions (continued)

Symptom	Possible Cause	Resolution
Unreadable characters on the	Incorrect baud rate.	Reset the emulation software to
management console		9600 baud.
Amber STATUS LED	POST error detected. It may or may	Contact Cisco Systems.
	not be a fatal error.
The switch port is placed in	Bad or non-Cisco-approved SFP.	Remove the SFP module from
error-disabled state after SFP is		the switch, and replace it with a
inserted		Cisco-approved module. Use the
		errdisable recovery cause
		gbic-invalid global
		configuration command to
		verify the port status, and enter a
		time interval to recover from the
		error-disable state.
		Refer to the switch command
		reference guide for information
		on the errdisable recovery
		command.
Switch does not recognize the	The SFP module might be installed	Verify that the SFP module is
SFP module	upside down.	not installed upside down.
	The SFP module does not snap into	Remove the SFP module.
	the port.	Inspect for physical damage to
		the connector, the module, and
		the port.
		Replace the SFP module with a
		known good SFP module.

Troubleshooting the Hardware Components

This chapter describes how to troubleshoot the Cisco ME 4924-10GE-10GE switch hardware and contains these sections:

•Getting Started, page 4-4

•Problem Solving to the System Component Level, page 4-4

•Identifying Startup Problems, page 4-4

•Troubleshooting the Power Supply, page 4-6

•Contacting Customer Service, page 4-6

If your system has problems starting up, use the information in this chapter to help isolate the cause. Problems with the initial startup are often caused by poor or improper connections. Although temperature conditions above the maximum acceptable level rarely occur at initial startup, environmental monitoring functions are included because they also monitor DC-line voltages.

Note For configuration questions or problems, refer to the software configuration guide or the command reference publication to configure or enable the interfaces.

Cisco ME 4924-10GE Ethernet Switch Hardware Installation Guide

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