Cisco Catalyst 3550 Installation Manual page 97

Chapter 3 Troubleshooting
Table 3-2 Common Problems and Their Solutions (continued)
Symptom
Amber System LED
Switch placed in error-disabled
state after GBIC is inserted
78-11358-03
Possible Cause
Nonfatal or fatal POST error
detected.
Bad or non-Cisco-approved GBIC.
Catalyst 3550 Multilayer Switch Hardware Installation Guide
Diagnosing Problems
Resolution
Check the port LEDs as
described in Table 3-1
which POST test failed.
Remove the GBIC module from
the switch, and replace it with a
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 Catalyst 3550
Multilayer Switch Command
Reference for information on the
errdisable recovery command.
to see
3-5