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Re: [Ace] Alexey Melnikov's Discuss on draft-ietf-ace-coap-est-17: (with DISCUSS and COMMENT)

Benjamin Kaduk <kaduk@mit.edu> Tue, 31 December 2019 20:53 UTC

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Date: Tue, 31 Dec 2019 12:53:37 -0800
From: Benjamin Kaduk <kaduk@mit.edu>
To: Carsten Bormann <cabo@tzi.org>
Cc: Klaus Hartke <hartke@projectcool.de>, Alexey Melnikov <aamelnikov@fastmail.fm>, ace-chairs@ietf.org, Jim Schaad <ietf@augustcellars.com>, Ace Wg <ace@ietf.org>, draft-ietf-ace-coap-est@ietf.org, The IESG <iesg@ietf.org>
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Subject: Re: [Ace] Alexey Melnikov's Discuss on draft-ietf-ace-coap-est-17: (with DISCUSS and COMMENT)
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On Fri, Dec 20, 2019 at 06:16:34PM +0100, Carsten Bormann wrote:
> On Dec 20, 2019, at 17:34, Klaus Hartke <hartke@projectcool.de> wrote:
> > 
> > I would prefer if draft-ietf-ace-coap-est didn't say anything here,
> > since the Uri-Host and Uri-Port options and whether they should be
> > omitted or not is entirely specified by CoAP [RFC7252].*
> 
> Klaus has an important point here.
> 
> We need to be **much more** vigilant about specifications messing with their normative references.
> Saying how they are used, yes, but re-stating (or, worse, re-interpreting) normative material from those references is prone to creating dialects that no longer interoperate with their unadulterated originals.  Unless these are hopelessly broken(*) and this is the only way to fix them, this is a MUST NOT.

Indeed; thank you Klaus and Carsten for reiterating it.

-Ben

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