[c-nsp] re: 2600 load balancing

Vandy Hamidi vandy.hamidi at markettools.com
Mon Mar 14 13:19:24 EST 2005


Josh,
This isn't a cut and dry question.  It depends on what type of data you
are sending over the link (voip, CIFS, internet, etc).  What type of
link it is, HDLC, PPP, Frame, etc.  Private link or provider link (i.e.
do you have control of both ends).

Get that info back to the list and we can help.

Also, I recommend do your research on serialization delays and T1 Link
aggregation online.  There are enormous amounts of information on this
topic that will do a far better job of explaining your question.

Getting the answer from the list is just part of it. You need to
understand the answer because situations alter the right design.

	-=Vandy=-

-----Original Message-----
From: cisco-nsp-bounces at puck.nether.net
[mailto:cisco-nsp-bounces at puck.nether.net] On Behalf Of Josh Gentry
Sent: Monday, March 14, 2005 7:34 AM
To: cisco-nsp at puck.nether.net
Subject: [c-nsp] re: 2600 load balancing

Hi.  I'm new to the list and  responding to a thread I saw in the 
archive.  Subject of the thread is 2600 load balancing.  The question 
was about load balancing across 2 T1's.

>I have a cisco 2620 (MPC860) router with two T1-s connected to it.
> 
> What would be the best method to load balance the traffic between the
two?
> 
> Thanks,
> 
> Alban
> _____________________

There has been a resulting discussion of using multilink PPP.  I do not 
personally have experience with MLPPP with Cisco's, so I can not comment

on that, except I've read it can increase processor load.  What I do 
have experience with is the per-packet load balancing with CEF.  I've 
written a little doc about it that might be helpful.  Feedback also 
appreciated.

http://www.joshgentry.com/cisco/cisco-load.html

Thanks,
Josh

-- 
Josh Gentry 
help at swcp.com * jgentry at swcp.com *  505-232-7992
Good Art Lives at http://www.jkdrummond.com/
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