IETF Logo Mail Archive

Re: [MMUSIC] Faster ICE by role reversal?

Martin Thomson <martin.thomson@gmail.com> Wed, 30 July 2014 23:28 UTC

Return-Path: <martin.thomson@gmail.com>
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 5D0D51A03E9 for <mmusic@ietfa.amsl.com>; Wed, 30 Jul 2014 16:28:30 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2
X-Spam-Level:
X-Spam-Status: No, score=-2 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, FREEMAIL_FROM=0.001, SPF_PASS=-0.001] autolearn=ham
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 WJuJcAl1pqU4 for <mmusic@ietfa.amsl.com>; Wed, 30 Jul 2014 16:28:29 -0700 (PDT)
Received: from mail-we0-x229.google.com (mail-we0-x229.google.com [IPv6:2a00:1450:400c:c03::229]) (using TLSv1 with cipher ECDHE-RSA-RC4-SHA (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id BF7501A02DA for <mmusic@ietf.org>; Wed, 30 Jul 2014 16:28:28 -0700 (PDT)
Received: by mail-we0-f169.google.com with SMTP id u56so1935433wes.14 for <mmusic@ietf.org>; Wed, 30 Jul 2014 16:28:27 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20120113; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :cc:content-type:content-transfer-encoding; bh=KDgdXcMiGC8Psxlai7VRJew/iWBqTJwzvoHzev73MOw=; b=XLcHs1j2Gi5+enqZ/IUUs/RU36jVzjC30ovvBt+2SrTeb5qWlaWEmIlOA21O+hzShC 9+9DBgzg53c6vfOAeeD0KnDiF5PFRmodiHmbiugTa3WZ/kPWy2+VVGzQjBOqMPHBvw6v dFHDzOaSHzEow25AralWCof3f23t/plTU3B7I2WBjcYrNhIf/Edh/hO1YbcC+jy8ATaj xkNt5b/Dk38edcbcbI5V+3CEaLwVSI0X2JhSu2qPVe/dJLzM+zI7gNSj+1IcGWXyuK+M cVXXCKo+3NIuef0t81B4O3LkDHEVr3M3CSjECP6QyHIvElaIbTA6njNS+BGO+ngwUMaV Rcug==
MIME-Version: 1.0
X-Received: by 10.180.211.237 with SMTP id nf13mr11370116wic.47.1406762907169; Wed, 30 Jul 2014 16:28:27 -0700 (PDT)
Received: by 10.194.169.10 with HTTP; Wed, 30 Jul 2014 16:28:27 -0700 (PDT)
In-Reply-To: <DD8DA86E-3C6A-44A7-B4E1-92CC0742369D@vidyo.com>
References: <CABkgnnVrXKz-7M_Qn7pSZBxCJTdQYPDOcEzrEbbv6eYrQs1Dhg@mail.gmail.com> <67A963F0-3667-47A7-B116-4712BA1147AD@vidyo.com> <CABkgnnV+ARP5xC-z=3AshUObUX_m3uisLY6NcsgEZVq-1drU8Q@mail.gmail.com> <DD8DA86E-3C6A-44A7-B4E1-92CC0742369D@vidyo.com>
Date: Wed, 30 Jul 2014 16:28:27 -0700
Message-ID: <CABkgnnUu_5aHFBAeR6hG5PCnS6cg1qFDO=0j4Es6p_hPnXFO2g@mail.gmail.com>
From: Martin Thomson <martin.thomson@gmail.com>
To: Jonathan Lennox <jonathan@vidyo.com>
Content-Type: text/plain; charset="UTF-8"
Content-Transfer-Encoding: quoted-printable
Archived-At: http://mailarchive.ietf.org/arch/msg/mmusic/W3f53cmfhF4oGKwcmrtqD9v5r4I
Cc: mmusic <mmusic@ietf.org>
Subject: Re: [MMUSIC] Faster ICE by role reversal?
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: Wed, 30 Jul 2014 23:28:30 -0000

On 30 July 2014 16:05, Jonathan Lennox <jonathan@vidyo.com> wrote:
> Actually, if the answerer (controlled endpoint) can send on any Valid pair, as in my suggestion, I don’t think you need the ICE role reversal for this optimization.  It can send ClientHello as soon as its first check succeeds, despite never having received any remote checks (with or without USE-CANDIDATE).

You win.  I think that you just made ICE faster with no mechanism.
That's better than faster ICE with some mechanism.

v2.23.0 | Report a Bug | By Email