Re: [DNSOP] I-D Action: draft-ietf-dnsop-refuse-any-04.txt

"Woodworth, John R" <John.Woodworth@CenturyLink.com> Fri, 10 February 2017 20:43 UTC

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From: "Woodworth, John R" <John.Woodworth@CenturyLink.com>
To: "'Richard Gibson'" <rgibson@dyn.com>, =?utf-8?B?w5NsYWZ1ciBHdcOwbXVuZHNzb24=?= <olafur@cloudflare.com>
Thread-Topic: [DNSOP] I-D Action: draft-ietf-dnsop-refuse-any-04.txt
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Date: Fri, 10 Feb 2017 20:43:11 +0000
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Cc: dnsop <dnsop@ietf.org>, "Woodworth, John R" <John.Woodworth@CenturyLink.com>, "Ballew, Dean" <Dean.Ballew@CenturyLink.com>
Subject: Re: [DNSOP] I-D Action: draft-ietf-dnsop-refuse-any-04.txt
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Richard, Olafur;

Just reread your draft and had a question.

Would it be worthwhile to formalize a default result-set for an ANY query in your draft?  Seems like there is a great disparity among implementations and as pointed out in your draft clients looking to save calories with a single query still require fallback logic “just in case” they don’t get what is expected.

Since this draft defines 3 alternate methods for determining responses, a 4th could formally define “normal”.  Just a thought.

BTW: like the idea of a the flag to better control intent.


Thanks,
John

From: DNSOP [mailto:dnsop-bounces@ietf.org] On Behalf Of Richard Gibson

Because without such a signal, humans using ANY for legitimate diagnostic purposes have no means of differentiating section 4.1/4.3 "subset" responses from conventional responses where there just happen to be only a small number of RRSets at the queried name, encouraging (or at least doing nothing to dissuade) a conclusion that the response is in fact conventional and complete.

On Fri, Feb 10, 2017 at 1:44 PM, Ólafur Guðmundsson <olafur@cloudflare.com<mailto:olafur@cloudflare.com>> wrote:
Thank you for your comments

Q: why do you think it is useful to complicate things with a EDNS0 flag ?

Olafur

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