From: Albert Lu (albert_lu@optushome.com.au)
Date: Fri Feb 07 2003 - 11:59:54 GMT-3
It's a little bit more complicated than just running BGP. Firstly, localpref
doesn't work for 1 router in 1 AS (but I've heard of doing another BGP peer
to the router's own loopback), and secondly running BGP with 1 AS per router
in a private network environment with 2 routers is abit of an overkill just
to get traffic engineering.
-----Original Message-----
From: nobody@groupstudy.com [mailto:nobody@groupstudy.com]On Behalf Of
Peter van Oene
Sent: Saturday, February 08, 2003 12:49 AM
To: ccielab@groupstudy.com
Subject: Re: asymmetric routing?
At 09:05 PM 2/7/2003 +1000, David Heaton wrote:
>this is a client thinking of things for you to waste your time on !
>
>2 sites, 2 WAN connections between them
>one ISDN, the other frame relay, both 128Kbps
>
>client wants to transmit traffic on the ISDN, and
>receive traffic on FR:
>
>A - - -ISDN - -> B
>A <- - - FR - - - B
This is simply done in BGP using pref to control one direction and prepends
or med to control the other. OSPF and ISIS could handle it equally well as
metric are unidirectional and thus could be oppositely weighted. I'm not
immediately aware of a way to handle it with EIGRP, though it is not a
protocol I work with very much.
>I haven't done this before, and don't know if it can be
>
>Currently there is EIGRP at both ends, but that can be
>changed easily
>
>Any suggestions appreciated
>
>David
>.
.
.
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