[c-nsp] cisco 3560 layer3 performance

[Peter Rathlev]

Take a look at what the SDM says, with "show sdm prefer". If you're
running a "vlan only" template, all L3-traffic is process switched. It
that case you should change it to "default" or whatever suits your
needs.

Regards,
Peter

On Mon, 2008-01-21 at 19:31 -0800, Mark Kent wrote: 
> Hello,
> 
> I've got a cisco 3560 (WS-C3560G-48TS-S) pulling in
> (80Mbs, 6500pps) on one switch port, and sending it
> out a trunk... cpu load is 5%.
> 
> Another cisco 3560, pulling in that same traffic on a trunk and
> sending it out a layer3 point-to-point gigE is running at 70 to 80%
> (cpu hog is "IP Input").
> 
> In fact, the cpu load is roughly the same as the Mbs load.  50Mbs = 50%.
> 
> Now, I know it's a small switch in the cisco line.
> But wouldn't we expect it to do a fair bit better than this?
> It looks like it will crap out at 100Mbs of layer3 traffic.
> 
> Thanks,
> -mark
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