Re: Numbering nameservers and resolvers

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