High CPU utilization ~30-40% Cisco 3600

Unanswered Question
Mar 13th, 2009
User Badges:

I have a router with multiple interfaces aggregating about 25Mb of traffic with a somewhat high CPU utilization. Ping times to the device fluctuate between 3ms and 180ms depending on the CPU load. We have WCCP directing traffic to a Barracuda web filter and have diagnosed that by disabling WCCP on the router, it does not lower the CPU load. I'm a little confused as where to go next. "show proc cpu sorted" shows most of the cpu 2.5ish going to virtual exec. Please let me know what information I can provide to help with this.

  • 1
  • 2
  • 3
  • 4
  • 5
Overall Rating: 0 (0 ratings)
Loading.
Giuseppe Larosa Fri, 03/13/2009 - 13:25
User Badges:
  • Super Silver, 17500 points or more
  • Hall of Fame,

    Founding Member

Hello Curtis,

according to


http://www.cisco.com/web/partners/downloads/765/tools/quickreference/routerperformance.pdf


a c3660 is capable of a max of 51-61 Mbps of traffic.

Other C36xy are less capable.


Traffic is forwarded using CEF but still the device uses its main cpu to move packets.


I think what you see is compatible with expected performance of the platform.


this should be the meaning of no cpu gain removing WCCP.


Hope to help

Giuseppe



Actions

This Discussion