Re: [MBONED] Roman Danyliw's No Objection on draft-ietf-mboned-deprecate-interdomain-asm-06: (with COMMENT)

Tim Chown <Tim.Chown@jisc.ac.uk> Tue, 07 January 2020 18:11 UTC

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From: Tim Chown <Tim.Chown@jisc.ac.uk>
To: Roman Danyliw <rdd@cert.org>
CC: The IESG <iesg@ietf.org>, "draft-ietf-mboned-deprecate-interdomain-asm@ietf.org" <draft-ietf-mboned-deprecate-interdomain-asm@ietf.org>, Colin Doyle <cdoyle@juniper.net>, "mboned-chairs@ietf.org" <mboned-chairs@ietf.org>, "mboned@ietf.org" <mboned@ietf.org>
Thread-Topic: Roman Danyliw's No Objection on draft-ietf-mboned-deprecate-interdomain-asm-06: (with COMMENT)
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Date: Tue, 7 Jan 2020 18:11:27 +0000
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Subject: Re: [MBONED] Roman Danyliw's No Objection on draft-ietf-mboned-deprecate-interdomain-asm-06: (with COMMENT)
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Hi Roman,

On 7 Jan 2020, at 17:57, Roman Danyliw via Datatracker <noreply@ietf.org<mailto:noreply@ietf.org>> wrote:

Roman Danyliw has entered the following ballot position for
draft-ietf-mboned-deprecate-interdomain-asm-06: No Objection

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COMMENT:
----------------------------------------------------------------------

** Section 4.1.  This section appears to provide multiple definitions of
“separate administrative entities”.

Perhaps we could change:

" The recommendation applies to the use of ASM between domains where

   either MSDP (IPv4) or Embedded-RP (IPv6) is used.

   An interdomain use of ASM multicast in the context of this document
   is one where PIM-SM with RPs/MSDP/Embedded-RP is run on routers
   operated by two or more separate administrative entities.”


to


  "The recommendation applies to the interdomain use of ASM multicast

   where PIM-SM with RPs, MSDP (IPv4) or Embedded-RP (IPv6) is run on

   routers operated by two or more separate administrative entities."

?

Per the paragraph “The more inclusive
interpretation of this recommendation …”, it wasn’t clear to me under what
circumstance the reader should use the more “inclusive interpretation”.

We have edited this recently in response to an area review.  What we’re trying to say is that in addition to the clearer cut interdomain applicability between two administrative entities (which we don’t specifically define) there are also some more subtle cases where the recommendation should be considered.

** Section 4.  This section would benefit from being clearer on who should act
on a few of the recommendation:

-- Section 4.3 – vendors/developers of multicast applications?

We can bolt on to the start of the section “Application developers should take particular note that…”

-- Section 4.4 – not clear who is supposed to develop this guidance?

Well, this is a hint to the IETF that it could do so, but we also say at the end that it’s out of scope of this document.  So it’s desirable, but then we punt it.

-- Section 4.6 – not clear who is supposed to developing this guidance long term

The discussion was again that this could be IETF work.  We can make that clearer.

** Editorial Nits:
-- Section 3.2.3. Typo. s/particularily/particularly/

-- Section 4.9.  Typo. s/implentations/implementations/

Thanks!

Tim