From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id ; Mon, 29 Jan 2001 19:30:10 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id ; Mon, 29 Jan 2001 19:30:01 -0500 Received: from thorgal.et.tudelft.nl ([130.161.40.91]:7977 "EHLO thorgal.et.tudelft.nl") by vger.kernel.org with ESMTP id ; Mon, 29 Jan 2001 19:29:55 -0500 Mime-Version: 1.0 Message-Id: In-Reply-To: <3A75F4D7.D7957633@metabyte.com> In-Reply-To: <3A75F4D7.D7957633@metabyte.com> Date: Tue, 30 Jan 2001 01:28:25 +0100 To: Pete Zaitcev From: "J.D. Bakker" Subject: Re: Maxwell strikes the heart (ECN: Clearing the air) Cc: linux-kernel@vger.kernel.org Content-Type: text/plain; charset="us-ascii" ; format="flowed" Sender: linux-kernel-owner@vger.kernel.org X-Mailing-List: linux-kernel@vger.kernel.org At 14:55 -0800 29-01-2001, Pete Zaitcev wrote: >So far I fail to see how a repainted NAK, kludged into a NAKless protocol, >would improve stability of the Internet. If anything, it is going to >exaggerate traffic oscillations. If anything RED will *reduce* oscillations by alleviating retransmit synchronization. > I would appreciate couple of links >to reputable studies or discussions on the subject. See http://www.aciri.org/floyd/ecn.html http://www.aciri.org/floyd/red.html (I particularly like ftp://ftp.ee.lbl.gov/talks/vj-nanog-red.pdf) RED and ECN can be considered independently (although they do work together quite well). You can see ECN as a way of the network telling the endpoints "Normally I would have dropped this datagram, but I'll let you get away with it this time". TCP behavior on reception of an ECN should be the same as when a datagram is dropped, but without the latency (and jitter) that is the result of a lost datagram. JDB. [using RED/ECN-like protocols for latency sensitive video communications over a wireless link] -- LART. 250 MIPS under one Watt. Free hardware design files. http://www.lart.tudelft.nl/ - 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/