From mboxrd@z Thu Jan 1 00:00:00 1970 From: jamal Subject: Re: [PATCH] tcp: ECN blackhole should not force quickack mode Date: Mon, 26 Sep 2011 08:00:43 -0400 Message-ID: <1317038443.1865.40.camel@mojatatu> 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> Reply-To: jhs@mojatatu.com Mime-Version: 1.0 Content-Type: text/plain; charset="UTF-8" Content-Transfer-Encoding: 7bit Cc: David Miller , netdev , Jerry Chu , Ilpo =?ISO-8859-1?Q?J=E4rvinen?= , Jim Gettys , Dave Taht To: Eric Dumazet Return-path: Received: from mail-yw0-f46.google.com ([209.85.213.46]:37579 "EHLO mail-yw0-f46.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753314Ab1IZMAu (ORCPT ); Mon, 26 Sep 2011 08:00:50 -0400 Received: by ywb5 with SMTP id 5so4196324ywb.19 for ; Mon, 26 Sep 2011 05:00:50 -0700 (PDT) In-Reply-To: <1317025614.2557.7.camel@edumazet-HP-Compaq-6005-Pro-SFF-PC> Sender: netdev-owner@vger.kernel.org List-ID: On Mon, 2011-09-26 at 10:26 +0200, Eric Dumazet wrote: > 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 : Ah, yes - thats where it went. > > 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 packet > to trigger quickack mode. Excellent ;-> Are you going to add 5562 support? cheers, jamal