[c-nsp] High CPU Usage

[Roland Dobbins]

On Jul 14, 2009, at 9:42 PM, Jeremy Parr wrote:

> CPU utilization for five seconds: 99%/61%; one minute: 99%; five  
> minutes: 98%

It's the 61%, which indicates interrupt-driven CPU (corresponds with  
the high IP Input process %).

Packets being punted at a relatively high pps rate; do you have  
NetFlow enabled in order to characterize your traffic?  Is the AIM in  
fact handling your GRE tunnels, or is the GRE traffic being handed in  
software on the CPU?

-----------------------------------------------------------------------
Roland Dobbins <rdobbins at arbor.net> // <http://www.arbornetworks.com>

         Unfortunately, inefficiency scales really well.

		   -- Kevin Lawton