[nsp] Bandwidth Limit

Mark Tinka mtinka at africaonline.co.ug
Thu Oct 23 04:19:46 EDT 2003


cisco-nsp-bounces at puck.nether.net wrote:
> Don't think that 32K exists, or maybe it's NVRAM?
> 
> I have had very bad results using CAR; it really kills the TCP
> sessions (TCP seems to feel very unconfortable with packet drops),
> but maybe it was me.  
> 
> Traffic-shaping is better, but I'm not sure you can use it in
> combination with ACLs? 
> 
> Vincent

True, CAR drops packets that exceed the predefined limit. As Vincent says,
GTS (Generic Traffic Shaping) adopts to the bandwidth requirements (or lack
thereof), and modifies the situation so packets are not dropped, but
perhaps, delayed. 

You can use GTS with ACLs, with the 'traffic-shape group' command, with an
ACL and the capacity as arguments. GTS can also be used on frame relay
connections. 

Note that traffic shaping is not supported with flow switching.

> 
>> -----Original Message-----
>> From: cisco-nsp-bounces at puck.nether.net
>> [mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Mark Tinka
>> Sent: jeudi 23 octobre 2003 9:59
>> To: 'Glynn S. Condez'; cisco-nsp at puck.nether.net
>> Subject: RE: [nsp] Bandwidth Limit
>> 
>> 
>> cisco-nsp-bounces at puck.nether.net wrote:
>>> Hi all,
>>> 
>>> In cisco 2611 running IOS version 12.1(6) with a memory of 32K, is
>>> it possible to bandwidth limit a certain IP or blocks of IP's?
>>> 
>>> 
>>> -- Glynn
>> 
>> Did you mean 32MB, or 32KB?
>> 
>> I suppose you can, using CAR and extended ACLs.
>> 
>> Regards,
>> 
>> Mark Tinka - CCNP
>> Network Engineer, Africa Online Uganda
>> 
>> 
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>> 
> 
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Regards,

Mark Tinka - CCNP
Network Engineer, Africa Online Uganda




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