[128830] in North American Network Operators' Group
Re: Numbering nameservers and resolvers
daemon@ATHENA.MIT.EDU (Mikael Abrahamsson)
Tue Aug 17 15:35:06 2010
Date: Tue, 17 Aug 2010 21:34:58 +0200 (CEST)
From: Mikael Abrahamsson <swmike@swm.pp.se>
To: Nick Olsen <nick@brevardwireless.com>
In-Reply-To: <5235c050$22e0dd3$54bd756c$@com>
Cc: nanog@nanog.org
Errors-To: nanog-bounces+nanog.discuss=bloom-picayune.mit.edu@nanog.org
On Tue, 17 Aug 2010, Nick Olsen wrote:
> So lets say that you have multiple DNS resolvers in the same ip space that
> you advertise from multiple locations. All would be fine for the most part.
> But if you had a location equidistant network wise from two POP's wouldn't
> it load balance and possibly break some TCP sessions? How would someone get
> around this? This is also what OpenDNS does from what I understand.
Usually network do not loadshare per-packet on BGP, so a TCP session will
"always" go to the same dns server, at least for the short duration this
TCP session lives.
--
Mikael Abrahamsson email: swmike@swm.pp.se
