From owner-freebsd-isp@FreeBSD.ORG Wed Jul 9 10:57:29 2003 Return-Path: Delivered-To: freebsd-isp@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 4571637B404 for ; Wed, 9 Jul 2003 10:57:29 -0700 (PDT) Received: from mail.lambertfam.org (www.lambertfam.org [216.223.208.55]) by mx1.FreeBSD.org (Postfix) with ESMTP id 8029C43F3F for ; Wed, 9 Jul 2003 10:57:23 -0700 (PDT) (envelope-from lambert@lambertfam.org) Received: from laptop.lambertfam.org (laptop.int.lambertfam.org [10.1.0.2]) by mail.lambertfam.org (Postfix) with ESMTP id 976D934D2D for ; Wed, 9 Jul 2003 13:57:21 -0400 (EDT) Received: by laptop.lambertfam.org (Postfix, from userid 1000) id 4BBE28A07; Wed, 9 Jul 2003 13:56:44 -0400 (EDT) Date: Wed, 9 Jul 2003 13:56:44 -0400 From: Scott Lambert To: freebsd-isp@freebsd.org Message-ID: <20030709175644.GC61669@laptop.lambertfam.org> Mail-Followup-To: freebsd-isp@freebsd.org References: <20030709172003.EDB0C43F85@mx1.FreeBSD.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: User-Agent: Mutt/1.4.1i Subject: Re: How do I max a 6Mbps link X-BeenThere: freebsd-isp@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Internet Services Providers List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jul 2003 17:57:30 -0000 On Wed, Jul 09, 2003 at 10:36:33AM -0700, Max Clark wrote: > Let me give a little more detail. This is a 6Mbps internet link that > traverses the atlantic and 25 router hops. "out of the box" I can only > sustain 170KBps. We are currently evaluating a REALLY expensive commercial > solution, but I would rather know I was going to be paid than spend $50K per > link. > > What can I do to help freebsd saturate this link? man tuning There are three paragraphs on network tuning. Search for high-latency and scroll back about three paragraphs to get the whole picture. > On Wed, 9 Jul 2003 10:12:03 -0700, Max Clark wrote: > > >Hi all, > > > >What configuration changes do I need to make to two freebsd-stable boxes to > >fully max out a 6Mbps/220ms network link? This is for bulk 500+MB file > >transfers. > > > >The target application is proftpd with ncftpd as the client. -- Scott Lambert KC5MLE Unix SysAdmin lambert@lambertfam.org