[67757] in North American Network Operators' Group
Re: Anycast and windows servers
daemon@ATHENA.MIT.EDU (Alex Bligh)
Fri Feb 20 07:32:40 2004
Date: Fri, 20 Feb 2004 12:31:57 +0000
From: Alex Bligh <alex@alex.org.uk>
Reply-To: Alex Bligh <alex@alex.org.uk>
To: Sean Donelan <sean@donelan.com>,
"Patrick W.Gilmore" <patrick@ianai.net>
Cc: nanog@merit.edu, Alex Bligh <alex@alex.org.uk>
In-Reply-To: <Pine.GSO.4.58.0402200536390.10902@clifden.donelan.com>
Errors-To: owner-nanog-outgoing@merit.edu
Sean,
> Hence the reason why I want the route to cease being advertised if the box
> "fails."
>
> I'm trying to avoid putting yet another server load balancer box in front
> of the windows box to withdraw the route so a different "working" box will
> be closest. It may be an oxymoron, but I'm trying to make the windows
> service (if not a particular windows box) as "reliable" as possible
> without introducing more boxes than necessary.
You might be better not running the routing protocol on the Windows box,
and run gated (or whatever) on some nearby Linux/BSD box which tests the
availability of each of your windows box and introduces the appropriate
route (i.e. a next-hop for the anycast address pointing at a normal IP
address) into (a very local) BGP (running multipath) or other favorite
routing protocol for each of the servers that are up.
Alex
