Re: [AVTCORE] Confirmation of Consensus: Adoption of Congestion Control Feedback Message

Bernard Aboba <bernard.aboba@gmail.com> Tue, 25 July 2017 20:51 UTC

Return-Path: <bernard.aboba@gmail.com>
X-Original-To: avt@ietfa.amsl.com
Delivered-To: avt@ietfa.amsl.com
Received: from localhost (localhost [127.0.0.1]) by ietfa.amsl.com (Postfix) with ESMTP id 1BCE0131EF8 for <avt@ietfa.amsl.com>; Tue, 25 Jul 2017 13:51:09 -0700 (PDT)
X-Virus-Scanned: amavisd-new at amsl.com
X-Spam-Flag: NO
X-Spam-Score: -2.698
X-Spam-Level:
X-Spam-Status: No, score=-2.698 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, HTML_MESSAGE=0.001, RCVD_IN_DNSWL_LOW=-0.7, SPF_PASS=-0.001, URIBL_BLOCKED=0.001] autolearn=ham autolearn_force=no
Authentication-Results: ietfa.amsl.com (amavisd-new); dkim=pass (2048-bit key) header.d=gmail.com
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 UriHj8PiWBOo for <avt@ietfa.amsl.com>; Tue, 25 Jul 2017 13:51:06 -0700 (PDT)
Received: from mail-vk0-x230.google.com (mail-vk0-x230.google.com [IPv6:2607:f8b0:400c:c05::230]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by ietfa.amsl.com (Postfix) with ESMTPS id AB325131EEE for <avt@ietf.org>; Tue, 25 Jul 2017 13:51:06 -0700 (PDT)
Received: by mail-vk0-x230.google.com with SMTP id n125so11453638vke.1 for <avt@ietf.org>; Tue, 25 Jul 2017 13:51:06 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=20161025; h=mime-version:in-reply-to:references:from:date:message-id:subject:to :cc; bh=KNo8OiBDajnLzHYFcUpUctFy5JU1T7tIg11+cOlqVmM=; b=ZeKG/bYVr1B3jgwbpQlHCBwUNs1GAtELUFxdDoudqtHrsKvlg/RMqPTlh52CD/bGII EjVw1rjZQMKUaoKOD1GIrPdu+wcuEbmK4qA7bwS47ZBFD6GmltQRBbWwnBJFYKCMbH6h zDlUXPgEli3mrgxV5wt4APH4fzLoZt/j9qVPJZ+8njF9kiLL27Y9SyDrUpLYj3LxVdQD yS26yiTg7XLKvxwVTahPGYgNzHQYF7Smw+cWFthQU+ZkMUgBjkRZHyBLFt8P+NVGJQu1 L0yjLeJkoTqiXOpWElcau9GH9qmVyHQ6O7wBaa+ErE3sQCtMR6KVRW4UAeW6zcF64oDi dtbQ==
X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20161025; h=x-gm-message-state:mime-version:in-reply-to:references:from:date :message-id:subject:to:cc; bh=KNo8OiBDajnLzHYFcUpUctFy5JU1T7tIg11+cOlqVmM=; b=bm0lv35arUqWQDv7XyvIByXGUF6KbH1gyiMhcUlJBrE8KAckRyodJpeflxVe6bZ8EO qiTD69UEzJn68uxJ6MWTFxOZU5zDThc0VCsB8xbyPvlV5pvUwKIs1AShhDOxHURC7Amm MbFk7+tJF0IKnUEUiOf3u7cvQJkbqYInQRu/zqWyYhrTcOtS+dp/zImefpzi5SR+Wot5 hgJc7CGE/162/nTVetSYfy9yEWRg0juvm7T+Wf+U0IejhTvor7aZzkCtWHVr6+TOg6pJ dUHKZ5cGWnsfYRdBKVHKhmy56bC+jkNtvWt+4sAC3tR9opOTSY2ETdtGD2naKXFQ/YvB kywg==
X-Gm-Message-State: AIVw112Q5wOnihuxEpjuoiHbLaf7dAlpK57N3J/MCf1Uv5C5yYQ57KEr a3mgRu6zMtO71bBchTHXZpLThucaWA==
X-Received: by 10.31.77.67 with SMTP id a64mr12114845vkb.186.1501015865550; Tue, 25 Jul 2017 13:51:05 -0700 (PDT)
MIME-Version: 1.0
Received: by 10.159.36.111 with HTTP; Tue, 25 Jul 2017 13:50:45 -0700 (PDT)
In-Reply-To: <1157B98E-6F05-40B0-A287-94CBC1E2035C@vidyo.com>
References: <1157B98E-6F05-40B0-A287-94CBC1E2035C@vidyo.com>
From: Bernard Aboba <bernard.aboba@gmail.com>
Date: Tue, 25 Jul 2017 13:50:45 -0700
Message-ID: <CAOW+2duP=R0mvof8ahGUzDuzSc--=q64LTb71KskKPjc8psYyA@mail.gmail.com>
To: Jonathan Lennox <jonathan@vidyo.com>
Cc: IETF AVTCore WG <avt@ietf.org>
Content-Type: multipart/alternative; boundary="001a114edc2877ecf005552a7dce"
Archived-At: <https://mailarchive.ietf.org/arch/msg/avt/cu2XBydVVwkKoB7UXtXrCB2Tu1U>
Subject: Re: [AVTCORE] Confirmation of Consensus: Adoption of Congestion Control Feedback Message
X-BeenThere: avt@ietf.org
X-Mailman-Version: 2.1.22
Precedence: list
List-Id: Audio/Video Transport Core Maintenance <avt.ietf.org>
List-Unsubscribe: <https://www.ietf.org/mailman/options/avt>, <mailto:avt-request@ietf.org?subject=unsubscribe>
List-Archive: <https://mailarchive.ietf.org/arch/browse/avt/>
List-Post: <mailto:avt@ietf.org>
List-Help: <mailto:avt-request@ietf.org?subject=help>
List-Subscribe: <https://www.ietf.org/mailman/listinfo/avt>, <mailto:avt-request@ietf.org?subject=subscribe>
X-List-Received-Date: Tue, 25 Jul 2017 20:51:09 -0000

I believe that the consensus of the meeting was to utilize feedback message
205.  This change would increase efficiency as well as to improve the
chances that the draft will be implemented and deployed.  With those
changes, I support adoption.

I do have some concerns about potential deployment, though. The proposal
was found to be only marginally more efficient than the feedback message
defined in
https://tools.ietf.org/html/draft-holmer-rmcat-transport-wide-cc-extensions
which is available in open source and is in widespread usage.  In one of
his first acts as Apple CEO, Steve Jobs killed a number of projects that
were "different but not better".  This makes me wonder whether the IETF
would not benefit from that level of realism.

On Tue, Jul 25, 2017 at 1:40 PM, Jonathan Lennox <jonathan@vidyo.com> wrote:

> Hi, all —
>
> At the AVTCORE meeting in Prague, we had consensus in the room to take on
> a Congestion Control Feedback Message as an AVTCORE working group item, and
> adopt draft-dt-rmcat-feedback-message as the basis for the working group
> document.
>
> If you were not at the meeting (or if you have changed your mind since the
> meeting) and have opinions on this topic, please let the working group know
> in the next week (by August 1st).
>
> Thank you!
>
> Jonathan Lennox
> AVTCORE co-chair
>
> _______________________________________________
> Audio/Video Transport Core Maintenance
> avt@ietf.org
> https://www.ietf.org/mailman/listinfo/avt
>