[181070] in North American Network Operators' Group

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Anycast provider for SMTP?

daemon@ATHENA.MIT.EDU (Joe Hamelin)
Mon Jun 15 13:52:36 2015

X-Original-To: nanog@nanog.org
From: Joe Hamelin <joe@nethead.com>
Date: Mon, 15 Jun 2015 10:50:15 -0700
To: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org

I have a mail system where there are two MX hosts, one in the US and one in
Europe.  Both have a DNS MX record metric of 10 so a bastardized
round-robin takes place.  This does not work so well when one site goes
down.   My solution will be to place a load balancer in a hosting site
(virtual, of course) and have it provide HA.  But what about HA for the
LB?  At first glance anycasting would seem to be a great idea but there is
a problem of broken sessions when routes change.

Have any of you seen something like this work in the wild?


--
Joe Hamelin, W7COM, Tulalip, WA, 360-474-7474

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