NS geo-distribution

[Sten Carlsen]

On 30/04/13 10:30, Dave Warren wrote:
> On 2013-04-30 00:49, Sten Carlsen wrote:
>> Don't forget that most users will get the address out of "some"
>> cache, not directly from the authoritative servers.
>
> Absolutely. This is even more true in our case as many of our clients
> are serve very local areas and 2-3 ISPs and 3-4 mobile providers
> probably cover 90%+ of their clients.
Which essentially means that the time to get data from the authoritative
servers is irrelevant in almost all cases. Availability vs. network
problems would be more important in my book.
>
>
> On 2013-04-29 21:48, Chris Buxton wrote:
>> RTT means almost always hitting the fastest server.
>
> My concern with relying on RTT is that since most of our sites are
> very low volume, will it be effective or does it work better when a
> host has higher traffic? How long do resolvers remember a particular
> NS's RTT?
>
> We have a handful of Europe based clients, but their number is quite
> small, so I'm not sure if we'd be significantly hurting the majority
> by introducing a high-latency server into the mix or not, or even how
> to evaluate the results.
>
> I realize I've probably spent more time thinking about it than I'll
> possibly save anyone else anyway, so perhaps that's my answer.
>
> I appreciate all the input.
>
> -- 
> Dave Warren
> http://www.hireahit.com/
> http://ca.linkedin.com/in/davejwarren
>
>
>
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-- 
Best regards

Sten Carlsen

No improvements come from shouting:
       "MALE BOVINE MANURE!!!"

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