Re: [DNSOP] [Ext] I-D Action: draft-ietf-dnsop-svcb-https-05.txt

Joe Abley <jabley@hopcount.ca> Wed, 12 May 2021 21:22 UTC

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From: Joe Abley <jabley@hopcount.ca>
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Date: Wed, 12 May 2021 17:15:33 -0400
Cc: Brian Dickson <brian.peter.dickson@gmail.com>, dnsop <dnsop@ietf.org>
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To: Eric Orth <ericorth=40google.com@dmarc.ietf.org>
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Subject: Re: [DNSOP] [Ext] I-D Action: draft-ietf-dnsop-svcb-https-05.txt
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On 12 May 2021, at 17:03, Eric Orth <ericorth=40google.com@dmarc.ietf.org> wrote:

> On Wed, May 12, 2021 at 4:28 PM Brian Dickson <brian.peter.dickson@gmail.com> wrote:
> 
>> Responses including partial RRsets are as unlikely (and as illegal) as a response to a query for SVCB being a TXT record saying "I'm a teapot".
> 
> Agreed that there is no such issue with either wire format if all parties in the ecosystem are bug-free and RFC-compliant.

Do you know of an example of a DNS authoritative or recursive server that does return truncated RRSets in the ANSWER section?

I appreciate the value of scepticism when it comes to these kinds of things, but I have never seen any data to suggest that this happens. So much of the DNS depends on correct behaviour here that I'm dubious that this is a real concern. If it's not a real concern, using it as justification for a particular design decision seems worth questioning.


Joe