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

Iñaki Baz Castillo <ibc@aliax.net> Thu, 31 July 2014 11:03 UTC

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From: =?UTF-8?Q?I=C3=B1aki_Baz_Castillo?= <ibc@aliax.net>
Date: Thu, 31 Jul 2014 13:03:00 +0200
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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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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.




-- 
Iñaki Baz Castillo
<ibc@aliax.net>