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Re: [core] [Technical Errata Reported] RFC7252 (5429)

Achim Kraus <achimkraus@gmx.net> Wed, 23 November 2022 17:10 UTC

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Date: Wed, 23 Nov 2022 18:09:37 +0100
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To: Carsten Bormann <cabo@tzi.org>, RFC Errata System <rfc-editor@rfc-editor.org>
Cc: jaime.jimenez@ericsson.com, hartke@tzi.org, aamelnikov@fastmail.fm, ben@nostrum.com, marian.buschsieweke@ovgu.de, core@ietf.org
References: <20180718144754.8CFA2B810BB@rfc-editor.org> <FA7560FC-255D-4CE0-BEB5-2741887EBA40@tzi.org>
From: Achim Kraus <achimkraus@gmx.net>
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Subject: Re: [core] [Technical Errata Reported] RFC7252 (5429)
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Hi Carsten,
Hi List,

 > which the CoRE WG might want to reinvigorate:
 > https://datatracker.ietf.org/doc/draft-bormann-core-corr-clar/

It's already an issue there:

https://github.com/core-wg/corrclar/issues/6

best regards
Achim


Am 23.11.22 um 17:31 schrieb Carsten Bormann:
> We picked up this errata report in the CoRE interim meeting today.
>
> Main content, with some typos corrected:
>> […]
>> Corrected Text
>> --------------
>> An Acknowledgement or Reset message is related to a Confirmable
>> message or Non-confirmable message by means of a Message ID along
>> with additional address information of the corresponding endpoint.
>> The Message ID is a 16-bit unsigned integer that is generated by the
>> sender of a Confirmable or Non-confirmable message and included in
>> the CoAP header.  Message IDs of subsequent messages sent to the
>> same endpoint within EXCHANGE_LIFETIME MUST be strictly ascending
>> (wrapping around at a value of 65535).  Additionally, two
>> subsequently send Message IDs to the same endpoint SHOULD have a
>> difference of at most 16.
> […]
>
> This is clearly a new technical proposal, which is different from what the WG intended.
> So it does not make good errata material.
>
> Note that there is extensive discussion of CoAP message ID usage in
> draft-ietf-lwig-coap, see:
> https://datatracker.ietf.org/doc/html/draft-ietf-lwig-coap-06#section-2.3
> and in particular
> https://datatracker.ietf.org/doc/html/draft-ietf-lwig-coap-06#section-3.5
>
> While draft-ietf-lwig-coap is not currently moving forward in the LWIG WG, some of its content might make a good fit to the clarifications part of the corr-clar document, which the CoRE WG might want to reinvigorate:
> https://datatracker.ietf.org/doc/draft-bormann-core-corr-clar/
>
> This (or an LWIG-coap actually taken to completion) then might provide a space to further discuss the technical proposal buried in this errata report.
>
> Grüße, Carsten
>
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> core@ietf.org
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