Cisco Systems Cisco ME 3400 Manual De Usuario

This chapter describes these topics for troubleshooting problems:

The LEDs on the front panel provide troubleshooting information about the switch. They show power-on 
self-test (POST) failures, port-connectivity problems, and overall switch performance. You can also get 
statistics from the CLI or from an SNMP workstation. See the software configuration guide and the 
switch command reference on Cisco.com or the documentation that came with your SNMP application 
for more information.

This section includes these troubleshooting topics:

As the switch powers on, it begins the POST, a series of tests that runs automatically to ensure that the 
switch functions properly. It might take several minutes for the switch to complete POST.

When the switch begins POST, the system LED slowly blinks green. When POST completes, the system 
LED blinks amber. If POST fails, the system LED remains amber. If POST completes successfully, the 
system LED rapidly blinks green.

POST failures are usually fatal. Contact your Cisco technical support representative if your switch does 
not pass POST.