[c-nsp] Question on CPU utilization

Geoffrey Pendery geoff at pendery.net
Tue Dec 16 12:02:32 EST 2008

My first post on the list, but I know this one, so I figured I'd speak up.

30-50% CPU util is normal idle level on the 3500XL series:


So don't get too concerned unless it gets up towards the 80-90% range,
or you see actual network impact.

-Geoff Pendery

On Tue, Dec 16, 2008 at 10:56 AM, Steven Pfister <SPfister at dps.k12.oh.us> wrote:
> We've got several remote sites that have a 3500XL switch running 12.0(5)WC17 as the core of their network. All of them are showing cpu utilization around 35-55% pretty much constantly.
> - is this too high? Shouldn't it be more like <= 10% most of the time?
> - how can I troubleshoot this? I've seen some steps on cisco.com, but they don't seem to indicate where the problem might be. I didn't see anything under the bug toolkit for this IOS that sounds like the problem I'm having, but should I try upgrading anyway?
> Thanks!
> Steve Pfister
> Technical Coordinator,
> The Office of Information Technology
> Dayton Public Schools
> 115 S. Ludlow St.
> Dayton, OH 45402
> Office (937) 542-3149
> Cell (937) 673-6779
> Direct Connect: 137*131747*8
> Email spfister at dps.k12.oh.us
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