Re: [multipathtcp] Spencer Dawkins' Yes on draft-ietf-mptcp-experience-06: (with COMMENT)

Olivier Bonaventure <> Thu, 27 October 2016 20:07 UTC

Return-Path: <>
Received: from localhost (localhost []) by (Postfix) with ESMTP id 365C412953C; Thu, 27 Oct 2016 13:07:39 -0700 (PDT)
X-Virus-Scanned: amavisd-new at
X-Spam-Flag: NO
X-Spam-Score: -4.301
X-Spam-Status: No, score=-4.301 tagged_above=-999 required=5 tests=[BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, RCVD_IN_DNSWL_MED=-2.3, SPF_PASS=-0.001] autolearn=ham autolearn_force=no
Authentication-Results: (amavisd-new); dkim=pass (1024-bit key)
Received: from ([]) by localhost ( []) (amavisd-new, port 10024) with ESMTP id gSXA9Xf96XoW; Thu, 27 Oct 2016 13:07:38 -0700 (PDT)
Received: from ( []) (using TLSv1.2 with cipher AECDH-AES256-SHA (256/256 bits)) (No client certificate requested) by (Postfix) with ESMTPS id 16B91129474; Thu, 27 Oct 2016 13:07:38 -0700 (PDT)
Received: from mbpobo.local ( []) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) (Authenticated sender: by (Postfix) with ESMTPSA id 6AB8D67DD62; Thu, 27 Oct 2016 21:59:16 +0200 (CEST)
DKIM-Filter: OpenDKIM Filter v2.9.2 6AB8D67DD62
DKIM-Signature: v=1; a=rsa-sha256; c=simple/simple;; s=selucl; t=1477598356; bh=2a5tA3X07Bi5NbM60GoCuToMMdZRa7ZmCzTbv370ZuY=; h=Reply-To:Subject:References:To:Cc:From:Date:In-Reply-To; b=O8EevH0GEh3Kom78ZEvy7pLx6yc1BbhqKk17rA7Yv8SFCo+RHk5E5nleNwmgy1gxC y6Inny52Ew0LXIryGaF5a1OQ/qXLZeW1OAxnZCSouFYx06lUH82filhchPSkT5DcR6 9ewdbZWRQgNDppMx54nLt9ZOFQjac3zmRWp6pcK8=
X-Virus-Status: Clean
X-Virus-Scanned: clamav-milter 0.99 at smtp-5
References: <>
To: Spencer Dawkins <>, The IESG <>
From: Olivier Bonaventure <>
Message-ID: <>
Date: Thu, 27 Oct 2016 21:59:17 +0200
User-Agent: Mozilla/5.0 (Macintosh; Intel Mac OS X 10.11; rv:45.0) Gecko/20100101 Thunderbird/45.4.0
MIME-Version: 1.0
In-Reply-To: <>
Content-Type: text/plain; charset=utf-8; format=flowed
Content-Transfer-Encoding: 7bit
X-Sgsi-Spamcheck: SASL authenticated,
X-SGSI-MailScanner-ID: 6AB8D67DD62.A6B5C
X-SGSI-MailScanner: Found to be clean
X-SGSI-Spam-Status: No
Archived-At: <>
Subject: Re: [multipathtcp] Spencer Dawkins' Yes on draft-ietf-mptcp-experience-06: (with COMMENT)
X-Mailman-Version: 2.1.17
Precedence: list
List-Id: Multi-path extensions for TCP <>
List-Unsubscribe: <>, <>
List-Archive: <>
List-Post: <>
List-Help: <>
List-Subscribe: <>, <>
X-List-Received-Date: Thu, 27 Oct 2016 20:07:39 -0000

Dear Spencer,

Thanks for your comments. A revised version will be uploaded soon on the 
IETF servers.

> ----------------------------------------------------------------------
> ----------------------------------------------------------------------
> Should this text
>    The FTP interference is expected and due to
>    Application Level Gateways running home routers.
> be "running in home routers"? I'm not sure how to parse the sentence
> otherwise.

I have added a sentence to explain that the ALG changes the payload and 
this is detected by the DSS Checksum used by MPTCP
> When reading this text
>    This may be
>    excessive in some environments, in particular when the client and/or
>    the server have a large number of interfaces.
> I am reminded that multiple IP addresses per interface are common in IPv6
> and dual stack deployments. That would make the situation worse, wouldn't
> it? If so, would that be worth saying?

I've added the following sentence : "Implementations shoud allow
to limit the number of subflows that are used."