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

Brian Dickson <brian.peter.dickson@gmail.com> Thu, 20 May 2021 01:21 UTC

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From: Brian Dickson <brian.peter.dickson@gmail.com>
Date: Wed, 19 May 2021 18:20:49 -0700
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To: Martin Thomson <mt@lowentropy.net>
Cc: Paul Wouters <paul@nohats.ca>, "dnsop@ietf.org WG" <dnsop@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 Wed, May 19, 2021 at 6:15 PM Martin Thomson <mt@lowentropy.net> wrote:

> On Thu, May 20, 2021, at 11:08, Paul Wouters wrote:
> > This discussion should be around reasonable and secure wire and
> > presentation formats, not about "but we already deployed this".
> > It should surely be taken into account if changing at this point
> > gives enough benefits, but the idea of changing should not be
> > dismissed out of hand.
>
> Fair point.  I would request that if changes are made, then a new
> codepoint is used.  I think that is a reasonable request.  If that means
> that this codepoint is now burned and unusable; and that is a problem due
> to a scarce supply, then maybe more care is needed in future about early
> allocations (I agree that this one was premature).
>

You are aware that we're at code point ~66 of 61000-ish possible
non-reserved values, right? (See
https://www.iana.org/assignments/dns-parameters/dns-parameters.xhtml#dns-parameters-4
for the table and procedures.)
Burning a code point is not a concern in terms of resource exhaustion....

Brian