[c-nsp] Sup-720 Spurious / Traceback

[Robert Williams]

Hi,

Thanks for the feedback people, we'll log a TAC for it anyway if it may help locate the bug - but won't rush for a reload now since it seems to be performing just fine. It's set to reload with SXJ4, so it will boot that in the next available window for it.

Cheers again!


Robert Williams
Backline / Operations Team
Custodian DataCentre
tel: +44 (0)1622 230382
email: Robert at CustodianDC.com
http://www.custodiandc.com/disclaimer.txt

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Phil Mayers
Sent: 27 November 2012 16:29
To: cisco-nsp at puck.nether.net
Subject: Re: [c-nsp] Sup-720 Spurious / Traceback

On 27/11/12 16:21, Robert Williams wrote:
> Hi All,
>
> Just experienced a load of these on one of our 6500/Sup-7203BXL
> units:

I've seen those occasionally. We reliably get them just after a reload.

I think they're often cosmetic.

> So we've never had this before (we have a lot of these in service) and
> I'm just curious what thoughts anyone has. Standard documentation says
> to upgrade IOS and/or log with TAC.
>
> It's running 12.2(33)SXJ3 so we can upgrade to SXJ4, which was
> recently marked as a 'safe' release. I'm curious though if people
> think this is likely to be hardware related or a software bug. Again,
> documentation suggests a software issue, but to have suddenly seen it
> on one chassis without warning I'm a little sceptical. It's still
> performing fine and I'd rather not waste a reload if it's unlikely to
> actually fix anything. Only related events were a couple of 3rd party
> IPv6 BGP sessions reset about 1 minute prior to the most recent
> events. Not sure if that can be related though, but worth mentioning.

I think it's probably a code bug that triggers a protective/cosmetic error. We've never had any problems ignoring them - on this platform, at least. Maybe different on others.
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