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Re: [DNSOP] [Ext] New Version Notification for draft-pp-additional-contents-00.txt

Ben Schwartz <bemasc@google.com> Wed, 16 June 2021 18:18 UTC

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From: Ben Schwartz <bemasc@google.com>
Date: Wed, 16 Jun 2021 14:17:55 -0400
Message-ID: <CAHbrMsCg-FQ4ZMpHsLebOjrvyM9bjvCFaOP2RxvJYna7PCysHg@mail.gmail.com>
To: Paul Hoffman <paul.hoffman@icann.org>
Cc: DNSOP WG <dnsop@ietf.org>
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Subject: Re: [DNSOP] [Ext] New Version Notification for draft-pp-additional-contents-00.txt
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OK, but this is bewildering in a different way.

RFC 2181 is a Standards Track RFC that Updates RFC 1034, and whose title is
"Clarifications to the DNS Specification".  In the event of conflict, it
supersedes RFC 1034.  As a matter of process, the RFC 1034 definition would
therefore seem to be irrelevant for determining the "correct" meaning.

If I were arguing that the RFC 2181 definition is not "correct", I would be
looking for an RFC that Updates RFC 2181 and has a different definition of
glue.  The DNSSEC RFCs do Update RFC 2181, and appear to use a conflicting
definition of glue, although it's not explicitly defined.  Is that the
argument you are making?

Given the quotes you provided, I would be more likely to conclude that the
existing standards-track RFCs use conflicting definitions of "glue", and a
new standards-track document or erratum would be needed in order to resolve
the discrepancy.

On Wed, Jun 16, 2021 at 1:52 PM Paul Hoffman <paul.hoffman@icann.org> wrote:

> On Jun 16, 2021, at 10:39 AM, Ben Schwartz <bemasc@google.com> wrote:
> >
> > Thanks.  I'm a bit confused though.  Your draft says "Non-address
> records that appear in the Additional section are not considered glue as
> that term is used in existing RFCs".  You also quote RFC 2181: '"Glue"
> above includes any record in a zone file that is not properly part of that
> zone, including nameserver records ...'.  Is RFC 2181 not an existing RFC?
>
> Of course it is an existing RFC: that's why we referenced it.
>
> Section 3 of the draft has three quotes about glue. The first two make it
> clear that RFC 1034 only considers glue to be addresses, while RFC 2181
> does not. The conclusion of the draft is that the original definition is
> the correct one.
>
> --Paul Hoffman

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