nanog mailing list archives

Re: Anycast provider for SMTP?


From: Larry Sheldon <larrysheldon () cox net>
Date: Thu, 18 Jun 2015 16:29:28 -0500

On 6/18/2015 16:25, Jonas Björk wrote:

Because clients will switch to unicast for renewal. Also clients will stay
with the current server forever, so you might have a bad distribution of
load between the servers. If one server was down everyone will switch to
the other and never go back until forced.

Why wouldn't they go back to the nearest server when it comes back online?

Been awhile, but it seems like they try to "renew" the lease they have, with the server that holds it.

--
sed quis custodiet ipsos custodes? (Juvenal)


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