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Re: [stir] WGLC: draft-ietf-stir-messaging-02

Christer Holmberg <christer.holmberg@ericsson.com> Thu, 14 July 2022 11:20 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Ben Campbell <ben@nostrum.com>, "Peterson, Jon" <jon.peterson@team.neustar>
CC: Christer Holmberg <christer.holmberg=40ericsson.com@dmarc.ietf.org>, IETF STIR Mail List <stir@ietf.org>, "stir-chairs@ietf.org" <stir-chairs@ietf.org>
Thread-Topic: [stir] WGLC: draft-ietf-stir-messaging-02
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Archived-At: <https://mailarchive.ietf.org/arch/msg/stir/nrGJg5GnaqAsoVxJDZai3I_sJ8c>
Subject: Re: [stir] WGLC: draft-ietf-stir-messaging-02
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We could say something like: “an implementation compliant with this specification MUST NOT insert…”

Regards,

Christer

From: stir <stir-bounces@ietf.org> On Behalf Of Ben Campbell
Sent: maanantai 11. heinäkuuta 2022 20.18
To: Peterson, Jon <jon.peterson@team.neustar>
Cc: Christer Holmberg <christer.holmberg=40ericsson.com@dmarc.ietf.org>; IETF STIR Mail List <stir@ietf.org>; stir-chairs@ietf.org
Subject: Re: [stir] WGLC: draft-ietf-stir-messaging-02

(no hat)

I have a question on one of the points, below:

Thanks!

Ben.


On Jul 11, 2022, at 7:57 AM, Peterson, Jon <jon.peterson@team.neustar<mailto:jon.peterson@team.neustar>> wrote:

Q5:

Section 3.2 says:

""msgi" MUST NOT appear in PASSporTs with a type other than "msg","

I don't think we should use "MUST NOT appear in" language. There is no way to enforce that.

I kind of don’t know how to respond to that, except to say that normative statements in the IETF describe the conditions under which interoperability between implementations can be tested, and indeed, a protocol conformance test could determine an implementation is non-compliant if it generated a non-"msg" PASSporT with "msgi" in it.


Do we really mean to prohibit some future PASSporT type from defining a use of “msgi” without updating this RFC? Would it make sense to add something to the effect “… unless explicitly specified otherwise in the definition of the PASSporT type?"

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