IETF
mmusic
mmusic@jabber.ietf.org
Thursday, March 30, 2017< ^ >
Adam Roach has set the subject to: Agenda: http://www.ietf.org/mail-archive/web/mmusic/current/msg15071.html
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[18:03:07] <Jonathan Lennox> Hello, I will be Jabber scribe
[18:03:23] <Jonathan Lennox> Please use the meetecho virtual queue if you are able, otherwise prefix comments for the room with "mic:"
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[18:16:48] <Roman Shpount> mic: You cannot change profile in the answer since this will result in different transport in offer and answer. I support the document.
[18:17:52] <Randell Jesup> hum for adopt
[18:17:56] <Roman Shpount> I support adoption
[18:18:08] <Andrew Hutton> I support adoption
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[18:48:29] <Meetecho> note to chairs: Peter Thatcher in virtual queue
[18:48:49] <Meetecho> (currently covered by fullscreen Colin, on the 2nd screen)
[18:52:46] <Colin Perkins> No objection to merging – once the new version of bundle is published, I'll comment on that.
[18:53:10] <Jonathan Lennox> Colin: want that at the mic, or just commenting here?
[18:53:42] <Colin Perkins> No need for mic
[18:53:46] <Jonathan Lennox> Ok
[18:57:21] <Colin Perkins> +1 to Christer
[19:02:29] <Roman Shpount> mic: I think this can be all expressed in offer/answer terms
[19:03:52] <Jonathan Lennox> ROman: that's more or less what I said — do you want me to relay you as well?
[19:05:14] <Roman Shpount> No, this was already covered
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[19:19:48] <Martin Thomson> Jonathan Lennox: anything other than 0.0.0.0 causes explosions, doesn't it?
[19:21:17] <Jonathan Lennox> It's fine if you're a transport that uses c=IN addresses, but I'm wondering what happens you don't.
[19:24:53] <Peter Thatcher> I don't think this is even possible with ICE+DTLS.
[19:25:08] <Peter Thatcher> But I've having trouble getting in the queue :)
[19:26:07] <Jonathan Lennox> No, it is — the answerer is a=active for DTLS and can send the clientHello as soon as it gets a valid pair, which doesn't require the offerer to have received the answer.
[19:26:28] <Peter Thatcher> But how can the DTLS handshake complete?
[19:26:46] <Jonathan Lennox> Why not?
[19:26:58] <Peter Thatcher> You can't send DTLS until you send ICE connectivity checks, which you can't do until you have the remote ufrag/pwd.
[19:27:30] <Jonathan Lennox> Oh — you mean the offerer can't send the serverHello without a valid pair— I think that might be true.
[19:27:39] <Peter Thatcher> Exactly
[19:27:56] <Meetecho> did the chairs see Randell and Peter in queue?
[19:27:57] <Randell Jesup> I'm in queue
[19:28:25] <Peter Thatcher> If I'm right, this isn'r relevant in the context of DTLS (and thus WebRTC).  But it would be for SDES.
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[19:28:40] <Peter Thatcher> (This topic of unverified media, I mean)
[19:28:59] <Jonathan Lennox> Offerer should probably process the clientHello and preparse the serverHello to go out, though.
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[19:29:20] <Peter Thatcher> But it won't receive media before receiving the remote finerprint.
[19:29:41] <Jonathan Lennox> Yes.
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[19:59:37] <Roman Shpount> mic: I think option 2 can work with additional restriction that tls-id only changes with a=connection:new
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[20:00:32] <Roman Shpount> mic: Do we need to update dtls-sdp to rename?
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[20:00:55] <Jonathan Lennox> Roman: sorry, session ended
[20:01:00] <Roman Shpount> np
[20:01:05] <Roman Shpount> Will finish on the list
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[20:01:18] <Randell Jesup> if somene is willing to poke me, I'll review simulcast
[20:01:42] <Randell Jesup> I'll need poking to make sure I get to it though :-)
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