[dns-operations] Resolvers choosing low latency nameservers

Matthew Pounsett matt at conundrum.com
Fri Jun 21 16:03:34 UTC 2013

On 2013/06/21, at 09:27, Matthäus Wander wrote:

> Hi,
> are there any studies or anecdotal evidence about how recursive
> resolvers select a query destination from a set of authoritative servers
> with known RTTs, and how often they re-probe the slower ones?
> Specifically, how many queries in what period of time would it take
> until a BIND or Unbound has re-probed all auth ns of e.g. com?

This may not answer your second question, but at the DNS-OARC meeting in London last spring there was a presentation covering your first.


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