Re: [MMUSIC] Merging ICE aggressive and regular nomination (was Re: [tram] Comment on draft-williams-peer-redirect-01: might it not converge?)

Emil Ivov <emcho@jitsi.org> Thu, 31 July 2014 19:59 UTC

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Date: Thu, 31 Jul 2014 21:58:55 +0200
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From: Emil Ivov <emcho@jitsi.org>
To: Justin Uberti <juberti@google.com>
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Cc: Jonathan Lennox <jonathan@vidyo.com>, mmusic <mmusic@ietf.org>
Subject: Re: [MMUSIC] Merging ICE aggressive and regular nomination (was Re: [tram] Comment on draft-williams-peer-redirect-01: might it not converge?)
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On 31 Jul 2014 9:09 PM, "Justin Uberti" <juberti@google.com> wrote:
>
> On Thu, Jul 31, 2014 at 4:03 AM, Iñaki Baz Castillo <ibc@aliax.net> wrote:
>>
>> 2014-07-31 1:25 GMT+02:00 Justin Uberti <juberti@google.com>om>:
>> >> I don’t think you want a rule of “most recently received
USE-CANDIDATE” to
>> >> determine the selected pair.  Checks will race each other, especially
when
>> >> the paths’ RTTs are very different.
>> >
>> >
>> > Agree, although this would be addressed by any of:
>> > - receipt of secure media is considered an indication of the selected
pair
>>
>> Please, consider DTLS rather than secure media. Secure media is easy
>> to handle regardless where it comes from. DTLS is not as you need a
>> separate context for each tuple.
>>
>> If you mean that "the controlled must determine as selected pair that
>> on which it receives the *first* DTLS ClientHello, being a previously
>> validated ICE pair (so the source address is already known thanks to a
>> previous ICE transaction)" then that sounds better for me.
>
>
> As discussed earlier, DTLS does not require a separate context for each
tuple. DTLS should be agnostic about the lower layer protocol (and we
should probably create an errata to resolve this confusion).

+1

--sent from my mobile

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