Re: [Ice] ICE Generation clarification questions

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>> 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
> 
> 
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