Re: [rtcweb] Filling in details on "trickle ICE"
Emil Ivov <emcho@jitsi.org> Thu, 18 October 2012 12:53 UTC
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Date: Thu, 18 Oct 2012 14:53:09 +0200
From: Emil Ivov <emcho@jitsi.org>
Organization: Jitsi
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To: Christer Holmberg <christer.holmberg@ericsson.com>
References: <CABcZeBMzgAs=hK38hCjS7t6yLjkTydS2TQUb8R3rBbRKGakVdQ@mail.gmail.com> <50508ED7.9080805@ericsson.com> <505B6A7E.6010309@jitsi.org> <CAOJ7v-00BAp8M0_+FJGuXqAdXQ=e=MRN_L_6_CmkQWX-Gy5JAg@mail.gmail.com> <AE1A6B5FD507DC4FB3C5166F3A05A484160ED5CD@tk5ex14mbxc272.redmond.corp.microsoft.com> <7594FB04B1934943A5C02806D1A2204B018842@ESESSMB209.ericsson.se> <507FD1C8.8000100@jitsi.org> <7594FB04B1934943A5C02806D1A2204B018C70@ESESSMB209.ericsson.se> <507FF42E.5070106@jitsi.org> <7594FB04B1934943A5C02806D1A2204B018D1F@ESESSMB209.ericsson.se> <507FF688.2010704@jitsi.org> <7594FB04B1934943A5C02806D1A2204B018D4B@ESESSMB209.ericsson.se>
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Cc: "rtcweb@ietf.org" <rtcweb@ietf.org>
Subject: Re: [rtcweb] Filling in details on "trickle ICE"
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Hey Christer, On 18.10.12, 14:34, Christer Holmberg wrote: > Hi, > >>>>>>> IF we are going to relax 3264 (I really hope we are NOT), it needs >>>>>>> to be clearly described somewhere. We cannot have a number of I-Ds >>>>>>> doing it "on the run"... >>>>>> >>>>>> I don't see how trickle ICE would require any changes to the O/A >>>>>> model. Candidate trickling semantics are completely separate from >>>>>> those in 3264. >>>>>> >>>>>> Yes, the 3264 offer may, in some cases, contain a first batch of >>>>>> candidates and the the 3264 may have to be delayed until ICE >>>>>> processing yields valid pairs for every component but that's about >>>>>> it. >>>>>> >>>>>> Am I missing something? >>>>> >>>>> I guess the question was whether one, after the first batch of >>>>> candidates have been sent in an offer, should be allowed to send the >>>>> second batch in a new offer - before an answer to the previous offer >>>>> has been received. That would be against 3264. >>>> >>>> It would indeed but I am not sure why we would think of additional >>>> candidate drops as offers at all. They are just independent >>>> signalling and are only loosely related to the 3264 semantics. >>>> >>>> Of course with SIP we would have a problem caused by the fact that >>>> additional in-dialog signalling is blocked by the 3264 answer. >>>> However, that's specific to SIP and will probably be best served with >>>> a SIP specific solution (e.g. UPDATEs or forcing early answers, or >>>> something else). >>> >>> It is sure that SIP may add its own limitations, but the general O/A >>> is generic. >> >> Sure, and we agree that the general O/A need not be used for trickle ICE, right? > > Well, I think general O/A SHALL be used - not only for trickle ICE, But why? What do we get from trickling via offers and answers other than problems? Or did you mean that > but also for JSEP :) > > (Vanilla ICE is also using general O/A) Not really. At least not always. ICE is quite nicely separated from the media O/A in XMPP. Both are indeed stuffed together for SIP by 5245 but that's just a design choice that we don't need to stick with. At least I don't see why we would. Emil -- https://jitsi.org
- [rtcweb] Filling in details on "trickle ICE" Eric Rescorla
- Re: [rtcweb] Filling in details on "trickle ICE" … Cullen Jennings
- Re: [rtcweb] Filling in details on "trickle ICE" Martin Thomson
- Re: [rtcweb] Filling in details on "trickle ICE" Eric Rescorla
- Re: [rtcweb] Filling in details on "trickle ICE" Martin Thomson
- Re: [rtcweb] Filling in details on "trickle ICE" Eric Rescorla
- Re: [rtcweb] Filling in details on "trickle ICE" Martin Thomson
- Re: [rtcweb] Filling in details on "trickle ICE" Cullen Jennings
- Re: [rtcweb] Filling in details on "trickle ICE" Martin Thomson
- Re: [rtcweb] Filling in details on "trickle ICE" Jim Barnett
- Re: [rtcweb] Filling in details on "trickle ICE" Martin Thomson
- Re: [rtcweb] Filling in details on "trickle ICE" Matthew Kaufman
- Re: [rtcweb] Filling in details on "trickle ICE" Jim Barnett
- Re: [rtcweb] Filling in details on "trickle ICE" Matthew Kaufman
- Re: [rtcweb] Filling in details on "trickle ICE" Peter Saint-Andre
- Re: [rtcweb] Filling in details on "trickle ICE" Bernard Aboba
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Bernard Aboba
- Re: [rtcweb] Filling in details on "trickle ICE" Francois Audet
- Re: [rtcweb] Filling in details on "trickle ICE" Bernard Aboba
- Re: [rtcweb] Filling in details on "trickle ICE" Francois Audet
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Cullen Jennings (fluffy)
- Re: [rtcweb] Filling in details on "trickle ICE" Lishitao
- Re: [rtcweb] Filling in details on "trickle ICE" Magnus Westerlund
- Re: [rtcweb] Filling in details on "trickle ICE" Martin Thomson
- Re: [rtcweb] Filling in details on "trickle ICE" Justin Uberti
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Justin Uberti
- Re: [rtcweb] Filling in details on "trickle ICE" Cullen Jennings (fluffy)
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Christer Holmberg
- Re: [rtcweb] Filling in details on "trickle ICE" Matthew Kaufman
- Re: [rtcweb] Filling in details on "trickle ICE" Christer Holmberg
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Christer Holmberg
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Christer Holmberg
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Christer Holmberg
- Re: [rtcweb] Filling in details on "trickle ICE" Emil Ivov
- Re: [rtcweb] Filling in details on "trickle ICE" Ted Hardie
- Re: [rtcweb] Filling in details on "trickle ICE" Christer Holmberg