Re: [rtcweb] Revision of bundling proposal/analysis

Randell Jesup <randell-ietf@jesup.org> Sun, 24 March 2013 05:18 UTC

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Date: Sun, 24 Mar 2013 01:17:30 -0400
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Subject: Re: [rtcweb] Revision of bundling proposal/analysis
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On 3/11/2013 12:00 PM, Dale R. Worley wrote:
> I've just submitted draft-worley-sdp-bundle-05, which is an SDP
> bundling proposal along with a bunch of analysis and comparison to
> other bundling proposals.
>
> The biggest change is adding a detailed analysis of alternatives for
> the address/port combinations to be used when offering constituent
> media descriptions (m= lines) so as to get all the mechanics to work
> as we'd like.  It is from this analysis I noticed that we don't have a
> good method to *answer* a constituent media description.  (I've sent
> e-mail about that to MMUSIC.)
>
> I've added an example containing two SCTP media descriptions, which
> will be a common case on WebRTC.

Actually, we nominally support only a single DataChannel connection per 
PeerConnection (at the W3 level), so you'll never have the example given 
in WebRTC.

Using BUNDLE outside of WebRTC would change that.

I also was surprised at encapsulating SRTP packets *inside* DTLS (and 
DTLS packets *inside* DTLS).

-- 
Randell Jesup
randell-ietf@jesup.org