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Re: [MMUSIC] NEED WG CONSENSUS: media-loopback is all-or-nothing

Hadriel Kaplan <HKaplan@acmepacket.com> Tue, 20 November 2012 19:51 UTC

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From: Hadriel Kaplan <HKaplan@acmepacket.com>
To: Bernard Aboba <bernard_aboba@hotmail.com>
Thread-Topic: [MMUSIC] NEED WG CONSENSUS: media-loopback is all-or-nothing
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Date: Tue, 20 Nov 2012 19:51:33 +0000
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Cc: "mmusic@ietf.org" <mmusic@ietf.org>, Paul Kyzivat <pkyzivat@alum.mit.edu>
Subject: Re: [MMUSIC] NEED WG CONSENSUS: media-loopback is all-or-nothing
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I take this is a "NO" vote?

-hadriel


On Nov 20, 2012, at 1:56 PM, Bernard Aboba <bernard_aboba@hotmail.com<mailto:bernard_aboba@hotmail.com>> wrote:

To Paul's point, there may be a scenario in which some m lines would be looped back and others would not.  For example, what if I want to do a loopback test of audio/video but also want to be able to converse via RTT to discuss the results of the test in progress.  In that case the audio and video m lines would be looped back but the text line would not be.

> Date: Tue, 20 Nov 2012 13:42:43 -0500
> From: pkyzivat@alum.mit.edu<mailto:pkyzivat@alum.mit.edu>
> To: mmusic@ietf.org<mailto:mmusic@ietf.org>
> Subject: Re: [MMUSIC] NEED WG CONSENSUS: media-loopback is all-or-nothing
>
> NO
>
> *Why* should the draft be limited this way if it need not be?
>
> Thanks,
> Paul
>
> On 11/20/12 1:16 PM, Hadriel Kaplan wrote:
> > Howdy,
> > during IESG review of the media-loopback draft, a discussion arose regarding the language around indicating media-loopback support per media description (i.e., per m-line), in sections 3.1 and 3.2.
> >
> > My interpretation/understanding was we were requiring ALL m-lines to indicate media-loopback; in other words it's an all-or-nothing in both the offer+answer, and either every media stream is looped back, or none are. However the text currently doesn't make this clear, and it could be argued either way, with pro's/con's either way too; so I'd like the WG's consensus on whether it should in fact be an all-or-none approach, or not.
> >
> > Please respond to this email by **Tuesday, December 4th** with a "YES" if the draft should mandate ALL media be looped-back, or "NO" if it should allow a hybrid approach of some streams being looped while others are not.
> >
> > For reference, the draft is here:
> > http://tools.ietf.org/html/draft-ietf-mmusic-media-loopback-24
> >
> > -hadriel
> >
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