From owner-freebsd-ipfw Mon Mar 4 7:37:28 2002 Delivered-To: freebsd-ipfw@freebsd.org Received: from iguana.icir.org (iguana.icir.org [192.150.187.36]) by hub.freebsd.org (Postfix) with ESMTP id CA98737B405 for ; Mon, 4 Mar 2002 07:37:25 -0800 (PST) Received: (from rizzo@localhost) by iguana.icir.org (8.11.6/8.11.3) id g24FbIQ64864; Mon, 4 Mar 2002 07:37:18 -0800 (PST) (envelope-from rizzo) Date: Mon, 4 Mar 2002 07:37:18 -0800 From: Luigi Rizzo To: "Carroll, D. (Danny)" Cc: freebsd-ipfw@FreeBSD.ORG Subject: Re: Dummynet, ipfw and ADSL bandwidth throttling.... Message-ID: <20020304073718.D64560@iguana.icir.org> References: Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.3.23i Sender: owner-freebsd-ipfw@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Mon, Mar 04, 2002 at 09:14:05AM +0100, Carroll, D. (Danny) wrote: ... > The adsl connection I have is 512kb down and 64kb up. The problem > starts when I try and upload at the full 64kb. > My Downloads crawl to a halt. > > I am not technical (At least not with ATM etc...) but I have read that > the problem lies with the fact that if you are using all the upload > bandwidth, then a download cannot send control packets fast enough and > hence it slows down as well.... does not sound very good as an explaination... > Basically I am wondering if DummyNet has a facility to limit per IP or > Protocol. Perhaps someone has seen this problem before and knows of a any granularity you like, depending how you specify the ipfw rule that sends packets to the dummynet pipe. cheers luigi To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-ipfw" in the body of the message