From owner-freebsd-stable@FreeBSD.ORG Sat Mar 6 17:20:23 2004 Return-Path: Delivered-To: freebsd-stable@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id CD8E216A4CE for ; Sat, 6 Mar 2004 17:20:23 -0800 (PST) Received: from ganymede.hub.org (u46n208.hfx.eastlink.ca [24.222.46.208]) by mx1.FreeBSD.org (Postfix) with ESMTP id A104243D31 for ; Sat, 6 Mar 2004 17:20:23 -0800 (PST) (envelope-from scrappy@hub.org) Received: by ganymede.hub.org (Postfix, from userid 1000) id 704503528F; Sat, 6 Mar 2004 21:20:24 -0400 (AST) Received: from localhost (localhost [127.0.0.1]) by ganymede.hub.org (Postfix) with ESMTP id 6F6B535285; Sat, 6 Mar 2004 21:20:24 -0400 (AST) Date: Sat, 6 Mar 2004 21:20:24 -0400 (AST) From: "Marc G. Fournier" To: Mike Tancsa In-Reply-To: <20040306210515.M13247@ganymede.hub.org> Message-ID: <20040306211328.H13247@ganymede.hub.org> References: <20040306130937.N71806@ganymede.hub.org> <20040306210515.M13247@ganymede.hub.org> MIME-Version: 1.0 Content-Type: TEXT/PLAIN; charset=US-ASCII cc: freebsd-stable@freebsd.org Subject: Re: Odd network issue ... *very* slow scp between two servers X-BeenThere: freebsd-stable@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Production branch of FreeBSD source code List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Sun, 07 Mar 2004 01:20:23 -0000 'k, I'm blind to start with ... I take it that this is the significant part of the output: Name Mtu Network Address Ipkts Ierrs Opkts Oerrs Coll em0 1500 00:07:e9:05:1b:2e 760865424 58003349 775965555 0 0 where the fxp devices don't show any Ierrs? That works out to be ~7% ... Dropping it to 10baseT/UTP appears to improve things by 10x: 1038785 bytes received in 6.86 seconds (147.89 KB/s) And drop'ng it to 100baseTX, half-duplex makes an even larger difference: 1038785 bytes received in 0.49 seconds (2.01 MB/s) 1038785 bytes received in 0.14 seconds (6.89 MB/s) The fxp devices are all running 100baseTX, full-duplex, and doing 10MB/s between each other ... ---- Marc G. Fournier Hub.Org Networking Services (http://www.hub.org) Email: scrappy@hub.org Yahoo!: yscrappy ICQ: 7615664