[c-nsp] Strange VIP CPU load

[Pete Templin]

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