From mboxrd@z Thu Jan 1 00:00:00 1970 From: Eric Dumazet Subject: Re: [PATCH] tcp: ECN blackhole should not force quickack mode Date: Mon, 26 Sep 2011 14:44:06 +0200 Message-ID: <1317041046.2557.24.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> References: <1316757739.2560.12.camel@edumazet-laptop> <1316825745.1865.24.camel@mojatatu> <1316978684.2531.7.camel@edumazet-laptop> <1316999266.1865.35.camel@mojatatu> <1316999597.1865.37.camel@mojatatu> <1317025614.2557.7.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> <1317038443.1865.40.camel@mojatatu> Mime-Version: 1.0 Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: QUOTED-PRINTABLE Cc: David Miller , netdev , Jerry Chu , Ilpo =?ISO-8859-1?Q?J=E4rvinen?= , Jim Gettys , Dave Taht To: jhs@mojatatu.com Return-path: Received: from mail-ey0-f174.google.com ([209.85.215.174]:63480 "EHLO mail-ey0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752359Ab1IZMn4 (ORCPT ); Mon, 26 Sep 2011 08:43:56 -0400 Received: by eya28 with SMTP id 28so3542088eya.19 for ; Mon, 26 Sep 2011 05:43:54 -0700 (PDT) In-Reply-To: <1317038443.1865.40.camel@mojatatu> Sender: netdev-owner@vger.kernel.org List-ID: Le lundi 26 septembre 2011 =C3=A0 08:00 -0400, jamal a =C3=A9crit : > On Mon, 2011-09-26 at 10:26 +0200, Eric Dumazet wrote: >=20 > > This refers to additions to RFC 2481 : This was refined by RFC 3168= , and > > the retransmitted TCP packets requirement is part of the final RFC = : >=20 > Ah, yes - thats where it went. >=20 > >=20 > > BTW, the ECN+ proposal (RFC 5562 : Adding Explicit Congestion > > Notification (ECN) Capability to TCP's SYN/ACK Packets) would allow= the > > client (receiving SYNACK message with ECT flags) to set the TCP_ECN= _SEEN > > I added in my patch, allowing even the first (retransmitted) data p= acket > > to trigger quickack mode. >=20 > Excellent ;-> > Are you going to add 5562 support? I sent a private mail to Adam Langley this morning asking him if he planned an official submission of a prior patch : =20 http://www.ietf.org/mail-archive/web/tcpm/current/msg03988.html If Adam is too busy or not anymore interested, I would like to spend some cycles on this. Thanks