Re: [MMUSIC] BUNDLE Weekly Summary: Assumptions

Paul Kyzivat <pkyzivat@alum.mit.edu> Sat, 11 May 2013 00:40 UTC

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Date: Fri, 10 May 2013 20:40:01 -0400
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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To: Jonathan Lennox <jonathan@vidyo.com>
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Cc: "mmusic@ietf.org" <mmusic@ietf.org>
Subject: Re: [MMUSIC] BUNDLE Weekly Summary: Assumptions
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On 5/10/13 6:44 PM, Jonathan Lennox wrote:

>>>     I struggled to find it too.  It's in 9.2:
>>>
>>>         SIP entities refuse media streams by setting the port to zero in the
>>>         corresponding "m" line. "a=group" lines MUST NOT contain
>>>         identification-tags that correspond to "m" lines with the port
>>>     set to
>>>         zero.
>>>
>>>
>>> This feels like something we could relax for the offer.
>>
>> We could relax it. The question is if the change will break any existing
>> use. That is a hard question to answer.
>
> We could say that whether it's valid must be defined by the group semantic, and for all existing group semantics it's not.

WFM