From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Fri, 26 Jan 2001 10:16:34 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Fri, 26 Jan 2001 10:16:24 -0500 Received: from pizda.ninka.net ([216.101.162.242]:40082 "EHLO pizda.ninka.net") by vger.kernel.org with ESMTP id ; Fri, 26 Jan 2001 10:16:08 -0500 From: "David S. Miller" MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-ID: <14961.37986.469902.496834@pizda.ninka.net> Date: Fri, 26 Jan 2001 07:14:42 -0800 (PST) To: Jamie Lokier Cc: Lars Marowsky-Bree , James Sutherland , Matti Aarnio , "H. Peter Anvin" , linux-kernel@vger.kernel.org Subject: Re: hotmail not dealing with ECN In-Reply-To: <20010126160342.B7096@pcep-jamie.cern.ch> In-Reply-To: <20010126124426.O2360@marowsky-bree.de> <20010126154447.L3849@marowsky-bree.de> <20010126160342.B7096@pcep-jamie.cern.ch> X-Mailer: VM 6.75 under 21.1 (patch 13) "Crater Lake" XEmacs Lucid Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org Jamie Lokier writes: > Does ECN provide perceived benefits to the node using it? Yes, endpoints and intermediate routers can tell the TCP sender about congestion instead of TCP having to guess about it based upon observed packet drop. It is a major enhancement to performance over any WAN. The endpoint based congestion notification happens _now_ if both sides speak ECN. The router based notification will be happening in the near future as Cisco and others deploy ECN speaking versions of their router software. Later, David S. Miller davem@redhat.com - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org Please read the FAQ at http://www.tux.org/lkml/