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Re: [DNSOP] Anycast and DNS questions

Antoin Verschuren <antoin.verschuren@sidn.nl> Tue, 02 September 2014 07:45 UTC

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Date: Tue, 02 Sep 2014 09:45:01 +0200
From: Antoin Verschuren <antoin.verschuren@sidn.nl>
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Subject: Re: [DNSOP] Anycast and DNS questions
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Op 02-09-14 om 09:31 schreef Andrew Sullivan:
> On Tue, Sep 02, 2014 at 09:28:15AM +0200, Antoin Verschuren wrote:
>> Reducing latency, or better, not increasing latency by introducing
>> anycast is it's secondary goal.
>
> For a number of customers of at least one provider I know (my
> employer), the reverse is true.  Customers expect 100% uptime from
> their DNS as a matter of course, and they don't care about anycast for
> that reason.  They care about performance of page loads, and nothing
> else.

Which is sort of what I was saying.
First goal is to have 100% uptime. Second goal is performance.
Low latency -if- you get an answer is not enough.
You want an answer all the time, and not a fast one 90% of the time and
none 10% of the time.
Ideally you want a fast answer 100% of the time.

- -- 
Antoin Verschuren

Technical Policy Advisor SIDN
Meander 501, PO Box 5022, 6802 EA Arnhem, The Netherlands

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