From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Sun, 28 Jan 2001 14:42:18 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Sun, 28 Jan 2001 14:42:08 -0500 Received: from [63.95.87.168] ([63.95.87.168]:26636 "HELO xi.linuxpower.cx") by vger.kernel.org with SMTP id ; Sun, 28 Jan 2001 14:42:05 -0500 Date: Sun, 28 Jan 2001 14:42:04 -0500 From: Gregory Maxwell To: James Sutherland Cc: jamal , linux-kernel@vger.kernel.org Subject: Re: ECN: Clearing the air (fwd) Message-ID: <20010128144204.B13195@xi.linuxpower.cx> In-Reply-To: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.3.8i In-Reply-To: ; from jas88@cam.ac.uk on Sun, Jan 28, 2001 at 01:29:52PM +0000 Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org On Sun, Jan 28, 2001 at 01:29:52PM +0000, James Sutherland wrote: > > There is nothing silly with the decision, davem is simply a modern day > > internet hero. > > No. If it were something essential, perhaps, but it's just a minor > performance tweak to cut packet loss over congested links. It's not > IPv6. It's not PMTU. It's not even very useful right now! No. ECN is essential to the continued stability of the Internet. Without probabilistic queuing (i.e. RED) and ECN the Internet will continue to have retransmit synchronization and once congested stay congested until people get frustrated and give it up for a little bit. It's a real issue, and it's actually important to have it implemented. It's not just a performance hack. - 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/