[181071] in North American Network Operators' Group
RE: Anycast provider for SMTP?
daemon@ATHENA.MIT.EDU (=?iso-8859-1?Q?J=FCrgen_Jaritsch?=)
Mon Jun 15 13:56:51 2015
X-Original-To: nanog@nanog.org
From: =?iso-8859-1?Q?J=FCrgen_Jaritsch?= <jj@anexia.at>
To: "nanog@nanog.org" <nanog@nanog.org>, "joe@nethead.com" <joe@nethead.com>
Date: Mon, 15 Jun 2015 17:54:31 +0000
In-Reply-To: <CAO0-hXZKU2gSt3vqj_p0B85xH=yt6RwXJfh_EY9HTzhygnj0Rg@mail.gmail.com>
Errors-To: nanog-bounces@nanog.org
I guess there is no real chance without conntrack ... I'll try to use somet=
hing like LVS+mysql conntrack (no idea if this even exists ...) ....
J=FCrgen Jaritsch
Head of Network & Infrastructure
ANEXIA Internetdienstleistungs GmbH
Telefon: +43-5-0556-300
Telefax: +43-5-0556-500
E-Mail: jj@anexia.at
Web: http://www.anexia.at
Anschrift Hauptsitz Klagenfurt: Feldkirchnerstra=DFe 140, 9020 Klagenfurt
Gesch=E4ftsf=FChrer: Alexander Windbichler
Firmenbuch: FN 289918a | Gerichtsstand: Klagenfurt | UID-Nummer: AT U632166=
01
-----Original Message-----
From: Joe Hamelin [joe@nethead.com]
Received: Montag, 15 Juni 2015, 19:51
To: NANOG list [nanog@nanog.org]
Subject: Anycast provider for SMTP?
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
