Re: [squid-users] Wccp, Cache Lost

From: Joe Cooper <joe@dont-contact.us>
Date: Mon, 01 Apr 2002 04:09:28 -0600

FWIW: Even a 2501 can be easily overloaded by a moderate Polygraph
load. I can overload mine with just a few Mbits of traffic (i.e. 45+
reqs/sec). Low end Ciscos aren't exactly built for speed. ;-)

I don't have enough machines to set up a test of your theory about load
and losing caches, however. Maybe next time I've got a box on the bench
for a client I'll test.

Awie wrote:
> AFAIK, the source of this problem is too HIGH CPU utilization of router or
> L3 switch.
>
> I have Cisco 2610 with overloaded VoIP traffic (120 voice ports) CPU reach
> more than 100% and there were a lot of deferred packet. Then I found WCCP
> could not hash and Cache lost. After I replaced router with Cisco 3620 the
> CPU decrease to 60% and WCCP run very normally.
>
> I think the easiest way to simulate high CPU is using low end router such as
> 1601 or 800 series with pretty heavy load. However... who will provide the
> device? .... ;-)
>
> Thx & rgds,
>
> Awie

-- 
Joe Cooper <joe@swelltech.com>
http://www.swelltech.com
Web Caching Appliances and Support
Received on Mon Apr 01 2002 - 03:11:52 MST

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