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Anycast provider for SMTP?
- Subject: Anycast provider for SMTP?
- From: jco at direwolf.com (John Orthoefer)
- Date: Mon, 15 Jun 2015 13:55:48 -0400
- In-reply-to: <CAO0-hXZKU2gSt3vqj_p0B85xH=yt6RwXJfh_EY9HTzhygnj0Rg@mail.gmail.com>
- References: <CAO0-hXZKU2gSt3vqj_p0B85xH=yt6RwXJfh_EY9HTzhygnj0Rg@mail.gmail.com>
Well we, Genuity, use to use Cisco Distributed Director to do this. Basically it was a DNS server that ran on a Cisco Router, and could use a lot of different metrics to give an answer, which included routing based metrics.
Johno
> On Jun 15, 2015, at 1:50 PM, Joe Hamelin <joe at 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