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Re: [MMUSIC] BUNDLE: mandate RTP/RTCP multiplexing?

worley@ariadne.com (Dale R. Worley) Fri, 03 May 2013 01:16 UTC

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From: worley@ariadne.com
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To: Christer Holmberg <christer.holmberg@ericsson.com>
In-reply-to: <7594FB04B1934943A5C02806D1A2204B1C3699A8@ESESSMB209.ericsson.se> (christer.holmberg@ericsson.com)
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Cc: mmusic@ietf.org
Subject: Re: [MMUSIC] BUNDLE: mandate RTP/RTCP multiplexing?
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> From: Christer Holmberg <christer.holmberg@ericsson.com>
> 
> In fact, I noticed that, in the second offer, BUNDLE already
> mandates it in both the offer and answer :)
> 
> So, the only addition would be to mandate it also in the first answer.

I can see why it would be useful to mandate rtcp-mux in the bundled
offer/answer, because it is more port-efficient, and the code that
handles the multiplexing and demultiplexing the constituent streams
only has to handle the case where the RTCP is multiplexed with the
RTP.

But it doesn't seem that there is much to gain by mandating rtcp-mux
in the first offer/answer, the one where actual bundling is not being
done.  All of the RTP/RTCP routing code that is active at that point
has to support non-rtcp-mux operation already.

Dale

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