[nsp] High CPU question (update)

[Bryan]

this is occuring even w/ a vxr npe-400 combo.

The app they are running is UDP traffic only so it's all legit.





Bryan

On Fri, 30 Apr 2004, james wrote:

> Date: Fri, 30 Apr 2004 13:52:46 -0600
> From: james <hackerwacker at cybermesa.com>
> To: Bryan <bryan at tec-works.com>, David Flynn <davidf at woaf.net>
> Cc: Gert Doering <gert at greenie.muc.de>, cisco-nsp at puck.nether.net
> Subject: Re: [nsp] High CPU question (update)
>
> Hmmm.......
>
> As Gert indicated the router the spending all it's CPU% moving packets,
> ie (66%/66%). So what about these little UDP packets, are they legit ?
> Perhaps you could look into the flows data and see what source and dest.
> this UDP traffic
> has and then check with the customer to see if this traffic pattern is
> expected.
>
> I don't have any NPE-225-non vxr's so I don't know what the real world
> pps abilities are, but it ain't 225 kpps.
>
> james
>
>
> > I've turned off route-cache flow and added CEF to all interfaces instead
> > with marginal improvement.  If I remove Cache switching all together the
> > cpu goes up about 15% from previous so i dont think there are that many
> > unique source/dest pairs.
> >
> >
> > 53007 PPS in
> >76546 PPS out
>
> >total for all interfaces and was hitting about 66%/66% cpu at this moment.
>
> >
> >
> > Bryan
>
>