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Re: Line Rate vs CPU utilization info requested


From: "Stephen Sprunk" <ssprunk () cisco com>
Date: Thu, 28 Feb 2002 10:28:08 -0600


Thus spake "Donn Lasher" <dlasher () clearskynet net>
Does anyone have a table / web site / etc that talks about realized IP
throughput on various routers (3600 / 7100 / 7200, 5500, 6500, etc)
versus cpu load? IE even though you can put 4 x 100M ethernet cards
in a 3640, IMHO, you'd never see 400/800M aggregate throughput
because the CPU would be on its' knees begging long before that point.

The real-world limitation for a 3640 is 70kpps (no acls, fast sw, 100% cpu).
At 45Mb/s, a 3640 should be just warming up.

I'm looking at a project that calls for a DS3, and the suggested router
is a 3640, and I'm trying to prove / document that's not a wise idea.

A 3640 should work fine for that application, provided you don't have any
other major requirements like BGP, long ACLs, etc.

S


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