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Re: [MMUSIC] Draft new version: draft-holmberg-mmusic-mux-exclusive-01

Roman Shpount <roman@telurix.com> Mon, 14 December 2015 00:47 UTC

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Date: Sun, 13 Dec 2015 19:46:55 -0500
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From: Roman Shpount <roman@telurix.com>
To: Christer Holmberg <christer.holmberg@ericsson.com>
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Subject: Re: [MMUSIC] Draft new version: draft-holmberg-mmusic-mux-exclusive-01
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On Sat, Dec 12, 2015 at 12:21 PM, Christer Holmberg <
christer.holmberg@ericsson.com> wrote:

> One question related to this: is there are reason we need to use the SDP
> 'rtcp' attribute for trickle to begin with? What purpose does it serve?
>
> If someone sends "9 IN IP4 0.0.0.0" I think it is pretty clear it also
> applies to RTCP...
>
>
I would think this attribute is completely redundant in such offer. I think
it was included there for logical continuity since rtcp attribute is
required for all ICE SDP even in cases when rtcp is sent to the c= address
m= line port+1, which are actually majority of session descriptions when
rtcp-mux only is not used. I think the question we need to ask is why rtcp
attribute is required for all ICE offers even when it is completely
redundant.
_____________
Roman Shpount

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