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Re: [MMUSIC] Bundle offer with different ports - where to expect media?

Christer Holmberg <christer.holmberg@ericsson.com> Mon, 20 May 2013 14:17 UTC

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From: Christer Holmberg <christer.holmberg@ericsson.com>
To: Emil Ivov <emcho@jitsi.org>
Thread-Topic: [MMUSIC] Bundle offer with different ports - where to expect media?
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Date: Mon, 20 May 2013 14:16:59 +0000
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Cc: mmusic <mmusic@ietf.org>, Paul Kyzivat <pkyzivat@alum.mit.edu>
Subject: Re: [MMUSIC] Bundle offer with different ports - where to expect media?
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Hi,

>>> What happens when the offerer knows the answerer has bundle support, sends all m-lines with the same port, then the answerer
>>> splits the first line away from the bundle? Would the answerer still send everything to the same port?
>>
>> We discussed this week, 
>>
> Yes, sorry, I didn't follow this closely.
>
>> and the outcome (at least my read of it :) was that the answerer is not 
>> allowed to split any m- lines away from the bundle in this case. Instead
>> the answerer will have to send a new offer for the split, allowing new 
>> ports to be negotiated at both ends.
>
> OK, so shouldn't the same thing happen in the case with different ports?

I suggested that it should never be allowed to split an m- line from a bundle group in an answer, but others had other opinions.

HOWEVER, it would still not help in the case where the 1st m- line is rejected.

Regards,

Christer

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