From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mail-04-iad.dyndns.com (mxout-044-iad.mailhop.org [216.146.32.44]) by lists.bufferbloat.net (Postfix) with ESMTP id D32F02E0354 for ; Fri, 4 Feb 2011 01:55:36 -0800 (PST) Received: from scan-02-iad.mailhop.org (scan-02-iad.local [10.150.0.207]) by mail-04-iad.dyndns.com (Postfix) with ESMTP id EF60C8347B5 for ; Fri, 4 Feb 2011 09:55:34 +0000 (UTC) X-Spam-Score: -1.0 (-) X-Mail-Handler: MailHop by DynDNS X-Originating-IP: 209.85.213.43 Received: from mail-yw0-f43.google.com (mail-yw0-f43.google.com [209.85.213.43]) by mail-04-iad.dyndns.com (Postfix) with ESMTP id C110683478B for ; Fri, 4 Feb 2011 09:55:34 +0000 (UTC) Received: by yws5 with SMTP id 5so848724yws.16 for ; Fri, 04 Feb 2011 01:55:33 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type; bh=/x4gY1EuQDUzqmxx8gTHy29Nl8sCE2iTFWLxenyTpkw=; b=IIeuzQunkATWPkyjKveDo5GBGy+0YCob2kLnCyCDobq7CWBQzT/3eMAppYRvPw69St bPpkTgL3vVSXYFhxhHmcxV9bfHxZQuI0hy6vbLHANm/6KJWhmNNcYY+v4ekJYET8y1mm uXxaMFpkTJXXipPFUdDO3CjoIwVu6pRzaVxXQ= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type; b=uPOBCk8iQMr9e8SZ78Ka58RzxU7aMv8ecFbDT6kUKm3r+PVBMnvJqktFuMWBROhSSU 7VFCGVQBEGwR2JCwNAHjLK+E3PqhprlQaSQKZ+AaBuE+k9767PAGn7AiC3YezufzoqA9 wX275oj1KfCLWFG9iY5XYLF3D1oTvUAYZrmn0= MIME-Version: 1.0 Received: by 10.236.103.164 with SMTP id f24mr23853604yhg.73.1296813333637; Fri, 04 Feb 2011 01:55:33 -0800 (PST) Received: by 10.236.108.41 with HTTP; Fri, 4 Feb 2011 01:55:33 -0800 (PST) In-Reply-To: <87mxmcdtvh.fsf@trurl.pps.jussieu.fr> References: <87mxmcdtvh.fsf@trurl.pps.jussieu.fr> Date: Fri, 4 Feb 2011 10:55:33 +0100 Message-ID: From: Luca Dionisi To: bloat@lists.bufferbloat.net Content-Type: text/plain; charset=ISO-8859-1 Subject: Re: [Bloat] =?iso-8859-1?q?About_LEDBAT=2C_=B5TP_and_BitTorrent?= X-BeenThere: bloat@lists.bufferbloat.net X-Mailman-Version: 2.1.13 Precedence: list List-Id: General list for discussing Bufferbloat List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Fri, 04 Feb 2011 09:55:37 -0000 On Fri, Feb 4, 2011 at 10:36 AM, Juliusz Chroboczek wrote: > Hi, > > In his series of articles, Jim has mostly been concerned about > router-based solutions to the delay issues. As you know, people have > also been working on end-to-end solutions, mostly within the framework > of TCP (people have already mentioned TCP-Vegas on this list). There's > a couple things I'd like to add. I think that the 2 things have to be carried on independently, because the end-to-end solutions are not a real solution to the bufferbloat. The problem is that one cannot make sure that end users will act fairly, by adjusting their sending rate. The only way to do this is dropping packets, so that they are obliged to send again. If the bottleneck is on a router that is not in your house, you can enable any congestion control solution in your nodes and you will in no way experience improved RTT, if other flows from other users do not act fairly and pass through the same bottleneck. Am I wrong with my reasoning?