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Re: Load balancing in routers

daemon@ATHENA.MIT.EDU (jeffrey arnold)
Mon Apr 8 00:18:34 2002

Date: Mon, 8 Apr 2002 00:17:46 -0400 (EDT)
From: jeffrey arnold <jba@analogue.net>
To: Steve Francis <steve@expertcity.com>
Cc: Richard A Steenbergen <ras@e-gerbil.net>,
	abhijit bare <abhi1999us@yahoo.com>, <nanog@merit.edu>
In-Reply-To: <3CB10958.A698271F@expertcity.com>
Message-ID: <Pine.LNX.4.33L2.0204080005580.24137-100000@phase.skylab.nyc.analogue.net>
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Content-Type: TEXT/PLAIN; charset=US-ASCII
Errors-To: owner-nanog-outgoing@merit.edu


On Sun, 7 Apr 2002, Steve Francis wrote:

> Richard A Steenbergen wrote:
>
> > In order to do more advanced
> > things, such as non-equal capacity load balancing, you need to have
> > knowledge of the "load" on a link (or the servers in the case of 4-7 load
> > balancers). This is something that "routers" have typically avoided, and
> > I'm not aware of any router vendors who attempt to do load balancing based
> > on the load of a link.
> >
>
> cisco's EIGRP can do it, but it is disalbed by default, and not recommended.
>

Not exactly a "router vendor", but many of the "route-optimization
vendors" can implement this on top of bgp by modifying routes based upon
link utilization, loss, latency, etc..

-jba
--
 [jba@analogue.net] :: analogue.networks.nyc :: http://analogue.net



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