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Numbering nameservers and resolvers
- Subject: Numbering nameservers and resolvers
- From: swmike at swm.pp.se (Mikael Abrahamsson)
- Date: Tue, 17 Aug 2010 21:34:58 +0200 (CEST)
- In-reply-to: <5235c050$22e0dd3$54bd756c$@com>
- References: <5235c050$22e0dd3$54bd756c$@com>
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 at swm.pp.se