Oh, not necessarily.
For various ugly reasons a couple of years ago we had a couple of routers
(not 2500s) that were rather severely overloaded.  They ran quite happily
up to about 98% CPU - a few dropped packets but not too many, then they
would become overwhelmed by incoming packets, a significant number of
packets would be dropped, sessions would drop and try to reconnect, and all
hell would break loose.
But they ran without obvious problems at well above 90% CPU.

YMMV.  I do *NOT* recommend deliberately letting routers run at 90% CPU.
Only try this at home - it's truly not pretty on a production network :-(

JMcL
---------------------- Forwarded by Jenny Mcleod/NSO/CSDA on 26/07/2001
08:59 am ---------------------------


"John Hardman" @groupstudy.com on 26/07/2001
02:01:41 am

Please respond to "John Hardman" 

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Subject:  Re: Can 2501 handle two T1s [7:13733]


Hi

If you are just routing you should be fine. However if you are doing NAT,
ACL, policy based routing or anything else that is CPU consuming you are
likely to have some problems. Keep in mind that a Cisco router will start
dropping packets at about 70% CPU and be totally brain dead at about 90%
CPU.

HTH
--
John Hardman CCNP MCSE


""Frank Kim""  wrote in message
[EMAIL PROTECTED]">news:[EMAIL PROTECTED]...
> Hey guys,
> I know no one in the world would put two T1s on a 2501 router.  But I
> maybe doing this soon.  I am currently using a 7200 router for my two T1s
> but I feel like taking it offline and sell it to pay for my ECP1 and my
> trip to San Jose for the lab test.  So I'm going take out my 2501 and see
> if it can handle two T1s which is constantly pushing at 2.8-3.0 mbps all
> the time.  Has anyone done this before?  Am I going to blow up this
> router?  Will the cpu utilization go skyrocket?  Thanks for any advice.
>
> -Frank




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