[c-nsp] Strange VIP CPU load
Pete Templin
petelists at templin.org
Fri Jan 13 09:39:34 EST 2006
Bill Wichers wrote:
> I have customer running some kind of streaming app that seems to be using
> excessive CPU load and I'm curious if anyone knows what might cause this.
> Normally I only see this kind of VIP load from DoS, not from only about 18
> Mb/s more "legit" traffic (total on the interface was about 38-45 Mb/s
> during the "problem" period of 100% CPU load.
http://www.cisco.com/warp/public/63/vip_cpu_rxbuffering.html
If the output interface is experiencing congestion, receive-side
buffering can cause 99% CPU, though the document indicates that
Rx-buffering is not a cause for concern over the high CPU.
pt
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