[c-nsp] Sup-720 Spurious / Traceback

[Phil Mayers]

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.