[96386] in North American Network Operators' Group
Re: Load balancing
daemon@ATHENA.MIT.EDU (Walter Prue)
Mon May 7 13:27:45 2007
Date: Mon, 07 May 2007 10:16:25 -0700
From: Walter Prue <prue@usc.edu>
In-reply-to: <3fe76440705071005s956334g4356595dff71c28c@mail.gmail.com>
To: dan <deearekay@gmail.com>
Cc: nanog@merit.edu
Errors-To: owner-nanog@merit.edu
Use the loopback address on each of the two routers as the bgp origination address and make sure that your router has
a route for the loopback address of the far router going over both of the GigE links. Ciscos handle this fine. Others can
as well. YMMV.
Walt
----- Original Message -----
From: dan <deearekay@gmail.com>
Date: Monday, May 7, 2007 10:09 am
Subject: Load balancing
To: nanog@merit.edu
> Hello,
> I currently have 2 routers with a single gigabit link (and
> correspondinginternal BGP session) between them.
> router1 <---------gigabit------->router2
>
> Simple setup. Now that we have reached the limit on this gigabit
> link, we
> are adding a second gigabit link between the same 2 routers, and we
> wish to
> load balance across them. Traffic is about 5:1 ratio of out:in.
> router2 has
> bgp sessions with several upstreams, and router 1 has bgp sessions
> withfurther internal routers. What is the best way to balance
> across these 2
> links?
>
> ---
> dan
>
