[nsp] Catalyst errdisable

[Jack.W.Parks at alltel.com]

Our IOS version is the same as your problem code...  We'll get a good, err newer, version from Cisco.  I think the MALLOCFAIL messages are not related to the LOOP_BACK_DETECTED, it just coincides with turning up a new switchport.

I did find some additional info...
http://groups.google.com/groups?ie=UTF-8&oe=UTF-8&as_umsgid=%3Cbmn1cm.1m5j.1@verdi.nethelp.no%3E&lr=&hl=no

Thanks for the info...

Jack

-----Original Message-----
From: Lukasz Bromirski [mailto:lbromirski at mr0vka.eu.org] 
Sent: Friday, March 05, 2004 8:26 AM
To: cisco-nsp at puck.nether.net; Parks, Jack W
Subject: Re: [nsp] Catalyst errdisable


Hi,

 > We added Cat3550-2 to provide some resiliency for the market Ethernet  > segment, Then we got the dreaded "%ETHCNTR-3-LOOP_BACK_DETECTED:"  which  > shutdown the .1q trunk between the switches.  I have experienced this  > behavior before, but now we are getting MALLOCFAIL messages in the logs  > of both switches (yes, the reported time is off).

Are You getting first MALLOC-FAILs then LOOP_BACK_DETECTED or the other way? If the MALLOC is first, it causes switch to behave somewhat mysteriously and I would discard the next "errors", as they are propably caused by process memory corruption. If the Loopback is first, then the Mallocs, You have propably some mysterious problem with EtherChannel. Can You post this trunk config for both sides?

Either way, Your malloc problems seem very similar to ones of my client (I've post to this list few days ago looking for a solution). His case was resolved by just upgrading the IOS to 12.1(20)EA1 from 12.1(12c)EA1, but I haven't found any bug in bug toolkit  similar to observed problems resolved since 12.1(12c)EA1.

Best regards,
-- 
Łukasz Bromirski                             lbromirski:mr0vka,eu,org


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