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Re: [MMUSIC] [rtcweb] Updating JSEP and BUNDLE

Christer Holmberg <christer.holmberg@ericsson.com> Wed, 27 January 2021 09:19 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Justin Uberti <juberti@google.com>, Roman Shpount <roman@telurix.com>
CC: "Murray S. Kucherawy" <superuser@gmail.com>, Magnus Westerlund <magnus.westerlund=40ericsson.com@dmarc.ietf.org>, "mmusic@ietf.org" <mmusic@ietf.org>
Thread-Topic: [MMUSIC] [rtcweb] Updating JSEP and BUNDLE
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Date: Wed, 27 Jan 2021 09:19:29 +0000
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Subject: Re: [MMUSIC] [rtcweb] Updating JSEP and BUNDLE
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>I think we need to split the problem into three parts:
>a) what should JSEP endpoints put into initial offers, when in max-bundle mode?
>b) what should JSEP endpoints put into initial offers, when in balanced mode?

Whatever JSEP says they should. There is no specification bug or specification misalignment etc that would require us to change that.

>c) what should all endpoints do in answers and re-offers (regardless of mode)?

Correct. That is the question we need to answer in order to fix the specification misalignment.

…

>c) may actually be the most significant decisioni, since it changes the behavior for just about every existing app (i.e., offerers will now start getting zero ports in their answers, regardless of mode). So I think we really
>just have to decide if there is a technical reason to prefer the BUNDLE behavior over the JSEP behavior, given the risks of such a change.

As I have said in off-list discussions, I am not religious regarding how we fix the JSEP/BUNDLE misalignment issue. As it covers a case when BUNDLE has been negotiated, we don’t need to consider backward compatibility with non-JSEP/BUNDLE endpoints.

Regards,

Christer






On Tue, Jan 26, 2021 at 5:51 PM Murray S. Kucherawy <superuser@gmail.com<mailto:superuser@gmail.com>> wrote:
On Tue, Jan 26, 2021 at 11:02 AM Christer Holmberg <christer.holmberg@ericsson.com<mailto:christer.holmberg@ericsson.com>> wrote:
> I think the revised charter takes this into account.  Please let me know if it needs any other corrections.

It needs to be clear that the charter is about fixing the misalignment between the BUNDLE and JSEP specifications - nothing more, nothing less.

Do you think the current charter text needs to be adjusted?  If so, do you have a suggestion?

-MSK
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