IETF Logo Mail Archive

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

Return-Path: <ibc@aliax.net>
X-Original-To: mmusic@ietfa.amsl.com
Delivered-To: mmusic@ietfa.amsl.com
Received: from localhost (ietfa.amsl.com [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 437331A0354 for <mmusic@ietfa.amsl.com>; Thu, 31 Jul 2014 04:03:24 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -1.678
X-Spam-Level:
X-Spam-Status: No, score=-1.678 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, FM_FORGED_GMAIL=0.622, MIME_8BIT_HEADER=0.3, RCVD_IN_DNSWL_LOW=-0.7] autolearn=no
Received: from mail.ietf.org ([4.31.198.44]) by localhost (ietfa.amsl.com [127.0.0.1]) (amavisd-new, port 10024) with ESMTP id fHEEBXhGIp4w for <mmusic@ietfa.amsl.com>; Thu, 31 Jul 2014 04:03:22 -0700 (PDT)
Received: from mail-qa0-f42.google.com (mail-qa0-f42.google.com [209.85.216.42]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id 844371A0343 for <mmusic@ietf.org>; Thu, 31 Jul 2014 04:03:21 -0700 (PDT)
Received: by mail-qa0-f42.google.com with SMTP id j15so2337457qaq.1 for <mmusic@ietf.org>; Thu, 31 Jul 2014 04:03:20 -0700 (PDT)
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc:content-type:content-transfer-encoding; bh=aW/SVAo0mD56rzyT3Y+KXzhocpow6HRGsfTmUchSz7Q=; b=ilWV9gtJLlDzE4tkbPikQRJH/GHY5XSacchHGmvYQsol7+KvB2jOeUhMQK4iJHwYjB bonMFSkVfjLt/v0KwxpEnXYbZ54Zd1JGyNcpcqUNYiOUIfFYAahYkwd7X0Q9Tb0//vfk S+KjxKix8nzdhcHxTC1PKUzwByNuSyNxVoOl7Z6yImBJyuPbEYsozwNdO6FpPYITIOS3 gsulA+54P2x3BCy+KeVdL7n1gau9EK3ybraf2wtHJyuLmgoRwBTevm34qMga4z0UEIlC El9ilhzcWFXIvuCbqWTus5dlrkmYzzY9A2f2McPERU+fcxwUqvS0wJ/ixL4mB3vnDhY+ 1gQg==
X-Gm-Message-State: ALoCoQn1h0IAapzDgRpYj2O1J9PzDGeWoYe2u8P+CpBdsvgtR2c4C2oneLJTBk/3FRux2j38uo5/
X-Received: by 10.140.107.4 with SMTP id g4mr15975014qgf.100.1406804600552; Thu, 31 Jul 2014 04:03:20 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.96.234.161 with HTTP; Thu, 31 Jul 2014 04:03:00 -0700 (PDT)
In-Reply-To: <CAOJ7v-1aF0L=fXSP6Fkb1nvukB8+mnKeYfbB9sMAUsufJpy-eg@mail.gmail.com>
References: <0DA61D09-6491-4DA4-8B6F-CFED70584A76@vidyo.com> <CAOJ7v-1jLK7dWDkWHKwHJ6qXicZWDNrAqOtw9R=6zAcWzkh5+g@mail.gmail.com> <53D796E5.9040009@jive.com> <2AF26344-DF5D-493C-96BC-80AD7DF35444@vidyo.com> <CAOJ7v-0HEjQQ+j0cAVc5r3Y4LxaoGF7EN2twGG6vTuMmEeragQ@mail.gmail.com> <8D2E9E91-B0B7-4081-B65B-EDAEC4D23A97@vidyo.com> <CAOJ7v-1HzGoUNXjvXph0-8WfpM6-vFJ+yDWhVw1_1grfrVD1Vw@mail.gmail.com> <B2794643-ADB5-4B66-98DC-841990C85437@vidyo.com> <CAOJ7v-2O3TwNcsKqp48PjDRu+Yu_+jEurecbO2GctD4Hsuu+NA@mail.gmail.com> <48776423-8594-4133-BD23-3EA561EC2A9D@vidyo.com> <CAOJ7v-1aF0L=fXSP6Fkb1nvukB8+mnKeYfbB9sMAUsufJpy-eg@mail.gmail.com>
From: =?UTF-8?Q?I=C3=B1aki_Baz_Castillo?= <ibc@aliax.net>
Date: Thu, 31 Jul 2014 13:03:00 +0200
Message-ID: <CALiegfmLtzMWSNqR_PTRttdau9jCrSavfLygBGxwNAQECt1uhg@mail.gmail.com>
To: Justin Uberti <juberti@google.com>
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: quoted-printable
Archived-At: http://mailarchive.ietf.org/arch/msg/mmusic/r-wxaJ49RQ-V2F_dn04YHuul7Xg
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?)
X-BeenThere: mmusic@ietf.org
X-Mailman-Version: 2.1.15
Precedence: list
List-Id: Multiparty Multimedia Session Control Working Group <mmusic.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/mmusic>, <mailto:mmusic-request@ietf.org?subject=unsubscribe>
List-Archive: <http://www.ietf.org/mail-archive/web/mmusic/>
List-Post: <mailto:mmusic@ietf.org>
List-Help: <mailto:mmusic-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/mmusic>, <mailto:mmusic-request@ietf.org?subject=subscribe>
X-List-Received-Date: Thu, 31 Jul 2014 11:03:24 -0000

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>

v2.8.10 | Report a Bug | By Email