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Re: [DNSOP] Anycast and DNS questions

Chris Thompson <cet1@cam.ac.uk> Wed, 03 September 2014 16:04 UTC

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Date: Wed, 03 Sep 2014 17:04:32 +0100
From: Chris Thompson <cet1@cam.ac.uk>
To: Guangqing Deng <dengguangqing@cnnic.cn>
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Subject: Re: [DNSOP] Anycast and DNS questions
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On Sep 3 2014, Guangqing Deng wrote:

>From RFC1034 section 4.1, it seems that the way used for improving the
>redundancy and resilience of DNS system is to increase DNS servers.

It might be better to start from RFC2182 "Selection and Operation of
Secondary DNS Servers", a mere 17 years old rather than 27 (and a lot
more detailed) although it still predates widespread use of anycast
in the DNS context.

Nothing has officially superceded RFC2182 and it remains a Best Common
Practice document (BCP0016).

-- 
Chris Thompson               University of Cambridge Information Services,
Email: cet1@uis.cam.ac.uk    Roger Needham Building, 7 JJ Thomson Avenue,
Phone: +44 1223 334715       Cambridge CB3 0RB, United Kingdom.

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