From: Brian Dennis (bdennis@internetworkexpert.com)
Date: Tue Sep 05 2006 - 22:52:58 ART
Do you have a lot of ARP traffic on the network? I ran into an issue
recently when the internal hosts pointed to their own interface as their
default gateway as opposed to the router's IP address. This was causing
excessive CPU utilization related to the ARP processing.
Brian Dennis, CCIE #2210 (R&S/ISP-Dial/Security)
bdennis@internetworkexpert.com
Internetwork Expert, Inc.
http://www.InternetworkExpert.com
Toll Free: 877-224-8987
Direct: 775-745-6404 (Outside the US and Canada)
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com] On Behalf Of
Subhash P
Sent: Tuesday, September 05, 2006 5:23 PM
To: Vishal Patel
Cc: Cisco certification
Subject: Re: 7500 CPU Processes
Hi Vishal,
Can you try disabling the " ip accounting" feature for a while and see
if
its enabled?
Regards,
Subhash.
On 9/6/06, Vishal Patel <vpatel@accessproviders.com.au> wrote:
>
> Hey guys,
>
> I have a 7500 , with dual RSP 4 / 256 MB RAM.
>
> The router has 1 VIP 4-80 , and that VIP has two PAs
>
> 1) Fast Eth
>
> 2) ATM
>
> Customers connect to Fast Eth , on it's subinterfaces and almost all
the
> Fast Eth subinterfaces have CAR being implemented ( may be around 250
> subinterfaces )
>
> And ATM is used to connect to the SP's network , it also have around
80
> VCs.
>
> Router runs around 12 VRFs but no MPLS ( VRFs are connected back to
> back
> )
>
> Now the issue is the cpu run at around 80 % on average ,and the IP
Input
> Process is eating 25/30 % of the processes.
>
> I have trying to implement all the fast , CEF and DCEF switching ,
still
> it
> seems lot of traffic is process switched.
>
> VIP's cpu runs at only 20 %
>
> Any ideas which will help me to releive the CPU ?
>
> Cheers
>
> Vishal
>
>
This archive was generated by hypermail 2.1.4 : Sun Oct 01 2006 - 16:55:40 ART