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Re: [Wish] WG Last Call for draft-ietf-wish-whip

Juliusz Chroboczek <jch@irif.fr> Mon, 06 February 2023 13:49 UTC

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Date: Mon, 06 Feb 2023 14:49:35 +0100
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From: Juliusz Chroboczek <jch@irif.fr>
To: Sergio Garcia Murillo <sergio.garcia.murillo@gmail.com>
Cc: Sean Turner <sean@sn3rd.com>, WISH List <wish@ietf.org>
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Subject: Re: [Wish] WG Last Call for draft-ietf-wish-whip
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> Can you point me to where in th3 spec it describes that the ice gathering phase
> is started in the createOffer. JSEP states the contrary:

Sorry, you're right.  It's setLocalDescription that triggers ICE.

So in order to get proper ICE servers we need to send the initial offer
before we even start gathering candidates.  In the absence of Trickle ICE,
we cannot reliably communicate *any* client-side candidates to the server.

Does that not suggest that Trickle ICE should be required?

>> I'm probably mistaken, but I was under the impression that you need an ICE
>> restart for the new configuration to have any effect.  Could you please
>> present your evidence that that is not the case?

> What kind of evidence do you need?

A browser test that shows relay candidates being generated by the client
when using the sequence that you suggest.

-- Juliusz

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