Re: [MMUSIC] WGLC for draft-ietf-mmusic-sdp-bundle-negotiation-19

Magnus Westerlund <magnus.westerlund@ericsson.com> Fri, 10 April 2015 13:41 UTC

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Date: Fri, 10 Apr 2015 15:41:45 +0200
From: Magnus Westerlund <magnus.westerlund@ericsson.com>
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To: Flemming Andreasen <fandreas@cisco.com>, mmusic <mmusic@ietf.org>
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Subject: Re: [MMUSIC] WGLC for draft-ietf-mmusic-sdp-bundle-negotiation-19
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Hi,

I have reviewed the changes once more and have not additional comments.
I support requesting publication of this document.

Cheers

Magnus

On 2015-03-30 23:01, Flemming Andreasen wrote:
> This is to announce a 2 week Working Group Last Call for
> 
>         draft-ietf-mmusic-sdp-bundle-negotiation-19
> 
> as Proposed Standard. Note that we previously issued a WGLC on the -12
> version (back in October 2014), and since there has been a number of
> changes to the draft since then, we want to give people a change to
> properly review those changes.
> 
> Please review and provide any comments you may have on the document
> changes by Monday, April 13, 2015. Comments should be sent to the
> document authors and the MMUSIC WG list. If you review the document but
> do not have any comments, please send a note to that effect as well.
> 
> Thanks
> 
>         Flemming (MMUSIC co-chair)
> 
> 
> 
> Draft Info:
> 
>  This draft is a work item of the Multiparty Multimedia Session Control
> Working Group of the IETF.
> 
>         Title           : Negotiating Media Multiplexing Using the
> Session Description Protocol (SDP)
>         Authors         : Christer Holmberg
>                           Harald Tveit Alvestrand
>                           Cullen Jennings
>     Filename        : draft-ietf-mmusic-sdp-bundle-negotiation-19.txt
>     Pages           : 48
>     Date            : 2015-03-26
> 
> Abstract:
>    This specification defines a new Session Description Protocol (SDP)
>    Grouping Framework extension, 'BUNDLE'.  The extension can be used
>    with the SDP Offer/Answer mechanism to negotiate the usage of a
>    single address:port combination (BUNDLE address) for receiving media,
>    referred to as bundled media, associated with multiple SDP media
>    descriptions ("m=" lines).
> 
>    To assist endpoints in negotiating the use of bundle this
>    specification defines a new SDP attribute, 'bundle-only', which can
>    be used to request that specific media is only used if bundled.  This
>    specification also updates sections 5.1, 8.1 and 8.2 of RFC 3264 to
>    allow an answerer to assign a non-zero port value to an "m=" line in
>    an SDP answer, even if the "m=" line in the associated SDP offer
>    contained a zero port value.
> 
>    There are multiple ways to correlate the bundled RTP packets with the
>    appropriate media descriptions.  This specification defines a new
>    RTCP source description (SDES) item and a new RTP header extension
>    that provides an additional way to do this correlation by using them
>    to carry a value that associates the RTP/RTCP packets with a specific
>    media description.
> 
> 
> The IETF datatracker status page for this draft is:
> https://datatracker.ietf.org/doc/draft-ietf-mmusic-sdp-bundle-negotiation/
> 
> There's also a htmlized version available at:
> http://tools.ietf.org/html/draft-ietf-mmusic-sdp-bundle-negotiation-19
> 
> A diff from the previous version is available at:
> http://www.ietf.org/rfcdiff?url2=draft-ietf-mmusic-sdp-bundle-negotiation-19
> 
> 
> 
> Please note that it may take a couple of minutes from the time of
> submission
> until the htmlized version and diff are available at tools.ietf.org.
> 
> Internet-Drafts are also available by anonymous FTP at:
> ftp://ftp.ietf.org/internet-drafts/
> 
> 
> _______________________________________________
> mmusic mailing list
> mmusic@ietf.org
> https://www.ietf.org/mailman/listinfo/mmusic
> 
> 


-- 

Magnus Westerlund

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