Thanks medan for the lead for sure when the ping become erratic the cpu utilization is around 98-100% which it has never attained before.The processes which takes most of the CPU time is IP Input, and TurboACL.

I have this article http://www.cisco.com/en/US/products/hw/routers/ps359/products_tech_note09186a00801c2af3.shtml.

But it has not helped. Any more advice

If this is happening consistently, I would configure netflow on the router to see if you can determine what traffic is going through the router. You can then block that traffic to see if it helps your throughput.

HTH,

John

Thanks John but i have all kinds of traffic( from clients) flowing thro the router i just need to pin which IP, AL, or config is causing the mess.From the records the issue happens like thrice in a day each time i do a reset things are normal.

Netflow would show you the IP, but if resetting the router fixes it, then personally I wouldn't suspect a host. Does it happen at the same time every day?

Thanks i will try netflow tho i have never configured it, give me time i try my hands on a demo router then on the BR because its critical each reset causes an uproar. The issue happens depending on traffic flow. The higher the traffic the faster it times out. Will get back to you once am done.

Thanks

Davis,

As others have indicated, NetFlow will help you identify what device(s) is/are causing the high bandwidth utilization which in turn is causing high CPU on the router.

Can you tell us what type of router and WAN speed this router have?

You may need to implement some kind of QoS to prevent this kind of behavior from occurring.

HTH,

__

Edison.

The router 7400ASR with 2 FastEthernet ports and 2 gig interfaces.thanks for overwhelming support