Re: [Ice] ICE Generation clarification questions
Thomas Stach <thomass.stach@gmail.com> Wed, 01 March 2017 07:02 UTC
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To: Peter Saint-Andre <stpeter@stpeter.im>, Taylor Brandstetter <deadbeef@google.com>
References: <148779754359.31167.11057689797490201951.idtracker@ietfa.amsl.com> <ca682f16-d926-d11e-ae03-6a84dfa84b68@gmail.com> <a0ca345c-75dd-002d-edc3-e829b5a60869@stpeter.im> <CAK35n0abCrm2WDd8PfQmnDBNrwf4vdCTUL9+TXSZkobATGs-cw@mail.gmail.com> <73898e41-dd66-e0be-0415-e5753880f0d1@stpeter.im> <CAK35n0ZyQBa2jttppGzVaKnfUTR1uTUCCtRfLQced+MpAmXQUA@mail.gmail.com> <2156e67b-7711-691e-2a47-9445646fab9d@gmail.com> <52d540f2-806d-4a42-1b63-acee92238e33@stpeter.im>
From: Thomas Stach <thomass.stach@gmail.com>
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Date: Wed, 01 Mar 2017 08:01:57 +0100
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Subject: Re: [Ice] ICE Generation clarification questions
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Peter, this addresses my comments. "something less than a full generation" is probably not the most elegant term, but it does the job. Thanks Thomas On 2017-02-28 21:58, Peter Saint-Andre wrote: > Hi Thomas, please check the diff to see if I've addressed your concerns: > > https://tools.ietf.org/rfcdiff?url2=draft-ietf-ice-trickle-07.txt > > Thanks! > > Peter > > On 2/27/17 11:43 PM, Thomas Stach wrote: >> +1 >> >> >> On 2017-02-27 23:38, Taylor Brandstetter wrote: >>> Noting the connection sounds good. >>> >>> On Mon, Feb 27, 2017 at 1:57 PM, Peter Saint-Andre <stpeter@stpeter.im >>> <mailto:stpeter@stpeter.im>> wrote: >>> >>> Exactly. Would it help to describe it that way or at least note the >>> connection? >>> >>> On 2/27/17 2:55 PM, Taylor Brandstetter wrote: >>> > Another way of looking at it is that a given generation is >>> identified by >>> > a local/remote ufrag pair, which will change on ICE restart. >>> > >>> > On Mon, Feb 27, 2017 at 1:53 PM, Peter Saint-Andre >>> <stpeter@stpeter.im <mailto:stpeter@stpeter.im> >>> > <mailto:stpeter@stpeter.im <mailto:stpeter@stpeter.im>>> wrote: >>> > >>> > On 2/27/17 2:13 AM, Thomas Stach wrote: >>> > > Hi, >>> > > >>> > > I'm a bit confused about the definition of an ICE >>> Generation and how it >>> > > is used in Section 14 >>> > >>> > To be clear for folks on the list, this is in reference to >>> the trickle >>> > draft. >>> > >>> > > Generation: The complete set of candidates sent within >>> an ICE >>> > > negotiation session. >>> > > >>> > > >>> > > >>> > > Section 14 and the definition of Half/Full Trickle then >>> uses terms like >>> > > "first generation" >>> > > "complete generation", >>> > >>> > For half trickle purposes, I think it would be best to use >>> the phrase >>> > "full generation" or even "complete set of candidates". That >>> is: under >>> > half trickle, in the initial ICE description the initiator >>> sends all the >>> > candidates it might possibly send. >>> > >>> > > "the responder can respond with an incomplete generation >>> of candidates", >>> > > >>> > > "full generation" >>> > > >>> > > This seems to imply that the generation is not necessarily >>> the complete >>> > > set of candidates, >>> > >>> > The generation is as defined above: the complete set of >>> candidates sent >>> > within an ICE negotiation session. It would be better here >>> to use the >>> > phrase "incomplete set of candidates". >>> > >>> > > but could grow during aICE Negotiation Session until >>> end-of-candidates >>> > > is signalled. >>> > > So the generation rather seems to be the extensible set of >>> currently >>> > > known/exchanged candidates. >>> > >>> > No, the generation is everything sent before an ICE restart >>> (if any). In >>> > trickle the set can grow over time, whereas in regular ICE >>> it can't. >>> > >>> > > It is also not clear to me if the candidates sent by the >>> ICE initiator >>> > > and the ICE responder >>> > > belong to different generations or if the generation is >>> the union of >>> > > both candidate sets. >>> > >>> > It is the union. >>> > >>> > Peter >>> > >>> > >>> > _______________________________________________ >>> > Ice mailing list >>> > Ice@ietf.org <mailto:Ice@ietf.org> <mailto:Ice@ietf.org >>> <mailto:Ice@ietf.org>> >>> > https://www.ietf.org/mailman/listinfo/ice >>> <https://www.ietf.org/mailman/listinfo/ice> >>> > <https://www.ietf.org/mailman/listinfo/ice >>> <https://www.ietf.org/mailman/listinfo/ice>> >>> > >>> > >>> >>> >
- [Ice] I-D Action: draft-ietf-ice-trickle-06.txt internet-drafts
- [Ice] ICE Generation clarification questions Thomas Stach
- Re: [Ice] ICE Generation clarification questions Peter Saint-Andre
- Re: [Ice] ICE Generation clarification questions Taylor Brandstetter
- Re: [Ice] ICE Generation clarification questions Peter Saint-Andre
- Re: [Ice] ICE Generation clarification questions Taylor Brandstetter
- Re: [Ice] ICE Generation clarification questions Peter Saint-Andre
- Re: [Ice] ICE Generation clarification questions Thomas Stach
- Re: [Ice] ICE Generation clarification questions Thomas Stach
- Re: [Ice] ICE Generation clarification questions Peter Saint-Andre
- Re: [Ice] ICE Generation clarification questions Thomas Stach