How do I check if a cisco IN-BUILT Module is faulty

[Iloveyou]

For example if i suspect the LAN port module behind is faulty.

E.g. first 6 ports module is faulty

I believe I can only check the power and fan

[Mark Elsen]

      - Is this a real current problem, if so include the device model and module part number too (?)

 M.

[Leo Laohoo]

Depends on the model of the Catalyst switch but "sh post" is one of the most common way.

[Iloveyou]

It is a Cisco 881.

Sh int br , sh ip int br don't work.

Any idea how to display it briefly?