err-disabled

[Ibrahim Jamil]

Hi Folks

How to start the Troubleshooting   for the Reason below

Fa1/0/3                     err-disabled            auto   auto 10/100BaseTX

how to configure the err-disable for others specific Reasons?

[romanrodichev@iementor.com]

-

[Roman Rodichev]

You can do "show logg" and look for a reason why the port was error disabled.

You can do "show errdisable detect" to see the list of events that errdisable is enabled for. By default it should be enabled for all events.

You can do "show errdisable recovery" to see if any of the errdisable events have automatic recovery enabled. By default, there should be no recovery. In other words, ports will stay down after errdisable event and you'll have to "shut" "no shut" to bring up the port. You can manually enable recovery for specific events, and you can also change the timer, after which the port is reenabled. By default that's 300 seconds (5 minutes).

[Ibrahim Jamil]

Thanks

[Ibrahim Jamil]

Hi

what is best tunning for logg ,to see every thing in detail and the debug level

[Roman Rodichev]

"logging buffered" controls what goes into the log. You can set the maximum message severity level and buffer size with that command. By default it should be set to level 7, which is the highest (debug) severity level. So if you enable debugging, it should go into the logging buffer

[George Stefanick]

+5 Roman ... great post !

[Roman Rodichev]

well, thank you, George!

[Ibrahim Jamil]

Thanks,this is my 5 Also for you

[davy.timmermans]

show interface status err-disabled is also usefull

[Kishore Chennupati]

Ibrahim,

The below link give you very good info about the causes of err-disable and also how to troubleshoot

http://www.cisco.com/en/US/tech/tk389/tk621/technologies_tech_note09186a00806cd87b.shtml

HTH

Please rate if helpful

[Ibrahim Jamil]

Thanks