Re: [rtcweb] No Plan
Paul Kyzivat <pkyzivat@alum.mit.edu> Fri, 31 May 2013 19:11 UTC
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Date: Fri, 31 May 2013 15:11:20 -0400
From: Paul Kyzivat <pkyzivat@alum.mit.edu>
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To: Emil Ivov <emcho@jitsi.org>
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Cc: rtcweb@ietf.org
Subject: Re: [rtcweb] No Plan
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On 5/31/13 6:51 AM, Emil Ivov wrote: > Hey Paul, > > On 29.05.13, 22:57, Paul Kyzivat wrote: >> Emil, >> >> I'm going to reserve judgment on this pending further discussion. >> I think this *might* work for CLUE, but I want to be certain. > > Sure! > >> I'm concerned with decomposed endpoints that can't manage all the >> streams on the same address/port. They will need multiple independent >> m-lines and/or bundle groups. > > This is obviously open for debate but the general idea of No Plan is > that: Offer/Answer is used for configuring media and RTP stacks and > additional signalling is not the browser's concern. > > Having extra m= lines, particularly when using BUNDLE, is in many ways > just extra signalling. You may be able to argue that adding extra m-lines into an existing bundle is "just extra signaling". But introducing an additional 5-tuple is more substantial. It requires configuring a new RTP stack and media. Thanks, Paul > If you'd like for that signalling to be in SDP, I > don't see any problem with it. However it would be best for this extra > layer of SDP signalling to appear at either the application layer or in > a signalling gateway (that is going to be there anyway). > > Does this make sense? > > Emil > >> >> Further questions: >> >> I presume that you expect bandwidth in the SDP to be an aggregate >> per-m-line, with application specific signaling for bandwidth at the >> per-RTP-stream level? >> >> Thanks, >> Paul >> >> On 5/29/13 2:59 PM, Emil Ivov wrote: >>> Hey all, >>> >>> Based on many of the discussions that we've had here, as well as many >>> others that we've had offlist, it seemed like a good idea to investigate >>> a negotiation alternative that relies on SDP and Offer/Answer just a >>> little bit less. >>> >>> The following "no plan" draft attempts to present one such approach: >>> >>> http://tools.ietf.org/html/draft-ivov-rtcweb-noplan >>> >>> The draft relies on conventional use of SDP O/A but leaves the >>> intricacies of multi-source scenarios to application-specific >>> signalling, with potentially a little help from RTP. >>> >>> Hopefully, proponents of Plans A and B would find that the >>> interoperability requirements that concerned them can still be met with >>> "no plan". Of course they would have to be addressed by >>> application-specific signalling and/or signalling gateways. >>> >>> Comments are welcome! >>> >>> Cheers, >>> Emil >>> >> >> _______________________________________________ >> rtcweb mailing list >> rtcweb@ietf.org >> https://www.ietf.org/mailman/listinfo/rtcweb >> . >> >
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Bernard Aboba
- Re: [rtcweb] No Plan Sergio Garcia Murillo
- [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Richard Barnes
- Re: [rtcweb] No Plan Cullen Jennings
- Re: [rtcweb] No Plan Peter Saint-Andre
- Re: [rtcweb] No Plan Martin Thomson
- [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Mary Barnes
- Re: [rtcweb] No Plan Peter Saint-Andre
- Re: [rtcweb] No Plan Christer Holmberg
- Re: [rtcweb] No Plan Stefan Håkansson LK
- Re: [rtcweb] No Plan Enrico Marocco
- Re: [rtcweb] No Plan Bernard Aboba
- Re: [rtcweb] No Plan Stefan Håkansson LK
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Enrico Marocco
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan - PT based MUX Cullen Jennings
- Re: [rtcweb] No Plan Gunnar Hellstrom
- Re: [rtcweb] No Plan Iñaki Baz Castillo
- Re: [rtcweb] No Plan Sergio Garcia Murillo
- Re: [rtcweb] No Plan Gunnar Hellstrom
- Re: [rtcweb] No Plan Sergio Garcia Murillo
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Iñaki Baz Castillo
- Re: [rtcweb] No Plan Cullen Jennings (fluffy)
- Re: [rtcweb] No Plan Mark Rejhon
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan - but what's the proposal Emil Ivov
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Cullen Jennings (fluffy)
- [rtcweb] RTT (was Re: No Plan) Matthew Kaufman
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Matthew Kaufman
- Re: [rtcweb] RTT (was Re: No Plan) Paul Kyzivat
- Re: [rtcweb] No Plan Stefan Håkansson LK
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] RTT (was Re: No Plan) Gunnar Hellstrom
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Christer Holmberg
- Re: [rtcweb] No Plan Iñaki Baz Castillo
- Re: [rtcweb] No Plan Iñaki Baz Castillo
- Re: [rtcweb] RTT (was :No Plan ) Gunnar Hellstrom
- Re: [rtcweb] RTT (was :No Plan ) Iñaki Baz Castillo
- Re: [rtcweb] RTT (was :No Plan ) Barry Dingle
- Re: [rtcweb] RTT (was :No Plan ) Gunnar Hellstrom
- Re: [rtcweb] RTT (was :No Plan ) Iñaki Baz Castillo
- Re: [rtcweb] RTT (was :No Plan ) Iñaki Baz Castillo
- Re: [rtcweb] RTT (was :No Plan ) Gunnar Hellstrom
- Re: [rtcweb] RTT (was :No Plan ) Iñaki Baz Castillo
- [rtcweb] Translating Plan A into No Plan (Was: No… Emil Ivov
- Re: [rtcweb] Translating Plan A into No Plan (Was… Iñaki Baz Castillo
- Re: [rtcweb] Translating Plan A into No Plan (Was… Eric Rescorla
- Re: [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan - but what's the proposal Emil Ivov
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] Translating Plan A into No Plan (Was… Martin Thomson
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] RTT (was :No Plan ) Paul Kyzivat
- Re: [rtcweb] No Plan - but what's the proposal Iñaki Baz Castillo
- Re: [rtcweb] Translating Plan A into No Plan (Was… Paul Kyzivat
- Re: [rtcweb] No Plan Iñaki Baz Castillo
- Re: [rtcweb] Translating Plan A into No Plan (Was… Iñaki Baz Castillo
- Re: [rtcweb] Translating Plan A into No Plan (Was… Emil Ivov
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan - but what's the proposal Emil Ivov
- Re: [rtcweb] Translating Plan A into No Plan (Was… Paul Kyzivat
- Re: [rtcweb] No Plan Paul Kyzivat
- Re: [rtcweb] No Plan Jonathan Lennox
- Re: [rtcweb] No Plan Jim Barnett
- Re: [rtcweb] Translating Plan A into No Plan (Was… Roni Even
- Re: [rtcweb] No Plan Bernard Aboba
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] No Plan Christer Holmberg
- [rtcweb] Repair Flows and No Plan (Was: No Plan) Emil Ivov
- Re: [rtcweb] No Plan Emil Ivov
- Re: [rtcweb] RTT (was :No Plan ) BeckW
- Re: [rtcweb] RTT (was :No Plan ) Gunnar Hellstrom
- Re: [rtcweb] Repair Flows and No Plan (Was: No Pl… Sergio Garcia Murillo
- Re: [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan - but what's the proposal Emil Ivov
- Re: [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan - but what's the proposal Silvia Pfeiffer
- Re: [rtcweb] No Plan - but what's the proposal Emil Ivov
- [rtcweb] Plan xyz discussions; MMUSIC <> RTCweb R… Flemming Andreasen
- Re: [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan - but what's the proposal Cullen Jennings
- Re: [rtcweb] No Plan - but what's the proposal Peter Thatcher