[29818] in North American Network Operators' Group

home help back first fref pref prev next nref lref last post

Re: LoadBalancing products: Foundry ServerIron

daemon@ATHENA.MIT.EDU (Stephen Stuart)
Fri Jul 7 14:50:57 2000

Message-Id: <200007071847.e67IlOX11486@hi.tech.org>
To: "Sutantyo, Danny" <danny.sutantyo@intel.com>
Cc: "'tony bourke'" <tony@vegan.net>, lb-l@vegan.net, nanog@merit.edu
In-reply-to: Your message of "Fri, 07 Jul 2000 09:21:00 PDT."
             <99A1A170DF99D211AC4100A0C95D77E8024601BB@fmsmsx77.fm.intel.com> 
Date: Fri, 07 Jul 2000 11:47:24 -0700
From: Stephen Stuart <stuart@mfnx.net>
Errors-To: owner-nanog-outgoing@merit.edu


> Someone from the maker of BIND company for DNS came here, and he told us
> that he's using OSPF to load balance the server, I don't know how he did it.
> Unless he's using the small routers to do it for servers.

There are two servers that provide f.root-servers.net service; each
has the f.root-servers.net address configured as an alias on the
loopback interface. The servers and the two upstream routers run OSPF;
the servers each inject f.root-servers.net/32 into OSPF, and the
routers see two "offers" of f.root-servers.net/32 with equal cost. 
The routers do CEF per-destination load-splitting, which winds up
splitting the load roughly 60/40 between the two servers.

Stephen


home help back first fref pref prev next nref lref last post