From owner-freebsd-net@FreeBSD.ORG Sun Jan 20 00:53:31 2008 Return-Path: Delivered-To: freebsd-net@freebsd.org Received: from mx1.freebsd.org (mx1.freebsd.org [IPv6:2001:4f8:fff6::34]) by hub.freebsd.org (Postfix) with ESMTP id 2E30916A419 for ; Sun, 20 Jan 2008 00:53:31 +0000 (UTC) (envelope-from mav@FreeBSD.org) Received: from cmail.optima.ua (cmail.optima.ua [195.248.191.121]) by mx1.freebsd.org (Postfix) with ESMTP id 98C2113C448 for ; Sun, 20 Jan 2008 00:53:30 +0000 (UTC) (envelope-from mav@FreeBSD.org) X-Spam-Flag: SKIP X-Spam-Yversion: Spamooborona 1.7.0 Received: from [212.86.226.226] (account mav@alkar.net HELO [192.168.3.2]) by cmail.optima.ua (CommuniGate Pro SMTP 5.1.14) with ESMTPA id 66743867; Sun, 20 Jan 2008 02:53:29 +0200 Message-ID: <47929B88.3050303@FreeBSD.org> Date: Sun, 20 Jan 2008 02:53:28 +0200 From: Alexander Motin User-Agent: Thunderbird 2.0.0.9 (Windows/20071031) MIME-Version: 1.0 To: Michael MacLeod References: <1200479046.00010232.1200466203@10.7.7.3> <1200479105.00010249.1200468002@10.7.7.3> <1200482587.00010258.1200469801@10.7.7.3> <1200489793.00010290.1200478201@10.7.7.3> <1200518607.00010486.1200507002@10.7.7.3> <478E834E.4080302@FreeBSD.org> <47927858.4050702@FreeBSD.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: freebsd-net@freebsd.org, Julian Elischer , Nikos Vassiliadis Subject: Re: Multilink PPP Download Speeds With Round-Robin Packets X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 Precedence: list List-Id: Networking and TCP/IP with FreeBSD List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 20 Jan 2008 00:53:31 -0000 Michael MacLeod wrote: >> After peer rejected multilink once, mpd is not trying to negotiate it >> any more. I am not sure it is a correct behaviour, but Cisco manuals >> recommend to configure LAC in a way that avoids rejections. >> >> User-land ppp seems to have specific workaround for this case while mpd >> does not. I don't very like this idea, but probably I could add this if >> you like to test it. > > If that's what it takes, I'm happy to test it. Also, the engineers at > my ISP are remarkably approachable, and if you tell me what to ask > them I can probably get you a decent answer pretty quick. After rereading RFC I have found that your provider operation possibly not perfect but it is correct. It is possible to hint peer to use multilink after rejecting by sending NAK. I have made some changes to handle that in mpd5 CVS and merged them into mpd4 branch. You can get new mpd version to test from mpd CVS repository: https://sourceforge.net/cvs/?group_id=14145 -- Alexander Motin