[181117] in North American Network Operators' Group

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Re: Anycast provider for SMTP?

daemon@ATHENA.MIT.EDU (Rafael Possamai)
Wed Jun 17 00:03:06 2015

X-Original-To: nanog@nanog.org
In-Reply-To: <CAO0-hXZKU2gSt3vqj_p0B85xH=yt6RwXJfh_EY9HTzhygnj0Rg@mail.gmail.com>
From: Rafael Possamai <rafael@gav.ufsc.br>
Date: Tue, 16 Jun 2015 23:02:40 -0500
To: Joe Hamelin <joe@nethead.com>
Cc: NANOG list <nanog@nanog.org>
Errors-To: nanog-bounces@nanog.org

Any luck on a DNS based solution?

On Mon, Jun 15, 2015 at 12:50 PM, Joe Hamelin <joe@nethead.com> wrote:

> 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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