[127692] in North American Network Operators' Group

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Re: Rate Limiting on Cisco Router

daemon@ATHENA.MIT.EDU (Jack Bates)
Thu Jul 8 19:56:50 2010

Date: Thu, 08 Jul 2010 18:54:56 -0500
From: Jack Bates <jbates@brightok.net>
To: Antonio Querubin <tony@lava.net>
In-Reply-To: <alpine.OSX.2.00.1007081341420.320@cust11794.lava.net>
Cc: nanog@nanog.org, "Murphy, Jay, DOH" <Jay.Murphy@state.nm.us>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

Antonio Querubin wrote:
> 
> Traffic-shaping 80Mb/s of traffic is probably not a good idea for your 
> router cpu :)
> 

Honestly, cpu overhead shouldn't be an issue with a traffic shape queue. 
If it is, probably a seriously underpowered router or poor code. Now if 
you applied extensive rules for various traffic at different rates and 
queue priorities, I could see lots of extra ticks.

Don't get me wrong. I have 400mbps+ traffic shapes on my junipers and 
probably glad for the extensive hardware support (like I have a choice, 
no hardware support, the router won't do it)


Jack


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