From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mgw-da01.nokia.com (smtp.nokia.com [147.243.128.24]) (using TLSv1 with cipher DHE-RSA-AES256-SHA (256/256 bits)) (Client CN "smtp.nokia.com", Issuer "VeriSign Class 3 International Server CA - G3" (verified OK)) by huchra.bufferbloat.net (Postfix) with ESMTPS id 831C9201AF1 for ; Mon, 9 May 2011 05:05:47 -0700 (PDT) Received: from mail.fit.nokia.com (esdhcp030222.research.nokia.com [172.21.30.222]) by mgw-da01.nokia.com (Switch-3.4.4/Switch-3.4.3) with ESMTP id p49CC0Pp005118 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=NO); Mon, 9 May 2011 15:12:02 +0300 X-Virus-Status: Clean X-Virus-Scanned: clamav-milter 0.97 at fit.nokia.com Mime-Version: 1.0 (Apple Message framework v1084) Content-Type: multipart/signed; boundary=Apple-Mail-2-218393961; protocol="application/pkcs7-signature"; micalg=sha1 From: Lars Eggert In-Reply-To: <5D1A6041-9ACA-450A-BE9B-F9415F697C65@gmail.com> Date: Mon, 9 May 2011 15:11:48 +0300 Message-Id: <2F33D019-1488-4457-9B4C-3E51617E0CFC@nokia.com> References: <4DA67BBE.9050606@taht.net> <1303145028.24248.1442482225@webmail.messagingengine.com> <1304695674.3066.57.camel@edumazet-laptop> <5D1A6041-9ACA-450A-BE9B-F9415F697C65@gmail.com> To: Jonathan Morton X-Mailer: Apple Mail (2.1084) X-Greylist: Sender succeeded SMTP AUTH, not delayed by milter-greylist-4.2.7 (mail.fit.nokia.com); Mon, 09 May 2011 15:11:53 +0300 (EEST) X-Spam-Status: No, score=-100.9 required=5.0 tests=ALL_TRUSTED,AWL,BAYES_00, MISSING_SUBJECT,USER_IN_WHITELIST autolearn=no version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on fit.nokia.com X-Nokia-AV: Clean Cc: Bufferbloat Mainlinglist Subject: Re: [Bloat] No ECN marking in IPv6 linux X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Mon, 09 May 2011 12:05:49 -0000 --Apple-Mail-2-218393961 Content-Transfer-Encoding: quoted-printable Content-Type: text/plain; charset=us-ascii On 2011-5-6, at 21:18, Jonathan Morton wrote: > On 6 May, 2011, at 9:14 pm, Dave Taht wrote: >=20 >> I am curious as to what the correct behavior here should be for = encapsulated (6in4, 6to4, teredo) packets, and if this functionality was = also borked. I was under the impression that for encapsulated packets = the tos field was copied from the encapsulated packet to the ipv4 = header. >=20 > Intuitively, these protocols are at the same level as IP in the stack, = so they should preserve ECN information as much as possible. Copying = the TOS field should be sufficient... Please see http://tools.ietf.org/html/rfc6040. No need to guess. 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