[c-nsp] Brief CPU spikes on 6500 Sup 720

Phil Mayers p.mayers at imperial.ac.uk
Wed Jul 14 08:42:04 EDT 2010


On 14/07/10 13:03, JC Cockburn wrote:
> Hi Phil,
> I had a problem like this last year on 6500's.
> It was related to bug: CSCsk23521
> Basically a server in our datacenter used multicast addresses in the range
> allocated for BPDU's, and this just killed the SP (100% CPU...).

Ugh. Nasty bug!

>
> If you do a "remote command switch sh proc cpu" on the 6500 you can see if
> the SP CPU is under fire...

Yes.

If the OP can provide more info, someone might be able to help determine 
why he's getting high CPU.


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