Try doing a sh processes cpu whil the high utilization occurs. This may add
some insight to what is causing the high utilization. I ahve seen a
misconfigured SNMP server cause a situation similar to this.
Hugh Pringle CCNA, CCDA
""Deloso, Elmer G (WPNSTA Yorktown)"" <[EMAIL PROTECTED]> wrote in
message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hello, gang.
> I'd like to know if anyone has seen this behaviour of a 4505 (v.11.2)
where
> it is able to handle heavy traffic throughout the day with no more than a
> 50% cpu utilisation max but shows a few periods of spikes up to 98% when
> there is no WAN traffic say 4am or 9pm. These spikes show up as "outgoing"
> traffic which lasts ~15 to 20 mins on MRTG chart. Nothing shows up on the
> syslogs. I once tried sniffer before the router "crashed" and all i saw
was
> a build up of ICMP and "other" packets. My guess is this is because the
> router is not responding to client requests thus it keeps getting a barage
> of "ICMP". This only shows up on the ethernet ports, i.e. coming in from
e0,
> out e1 in reference to MRTG.
> Any ideas would help. Thanks.
>
> Elmer Deloso
>
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