From owner-freebsd-net@FreeBSD.ORG Fri Oct 19 01:31:33 2007 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 AA90016A46B for ; Fri, 19 Oct 2007 01:31:33 +0000 (UTC) (envelope-from julian@elischer.org) Received: from outC.internet-mail-service.net (outC.internet-mail-service.net [216.240.47.226]) by mx1.freebsd.org (Postfix) with ESMTP id 754C813C461 for ; Fri, 19 Oct 2007 01:31:29 +0000 (UTC) (envelope-from julian@elischer.org) Received: from mx0.idiom.com (HELO idiom.com) (216.240.32.160) by out.internet-mail-service.net (qpsmtpd/0.40) with ESMTP; Thu, 18 Oct 2007 18:31:13 -0700 X-Client-Authorized: MaGic Cook1e X-Client-Authorized: MaGic Cook1e Received: from julian-mac.elischer.org (nat.ironport.com [63.251.108.100]) by idiom.com (Postfix) with ESMTP id 17B91126753; Thu, 18 Oct 2007 18:31:12 -0700 (PDT) Message-ID: <471808F5.8010608@elischer.org> Date: Thu, 18 Oct 2007 18:31:33 -0700 From: Julian Elischer User-Agent: Thunderbird 2.0.0.6 (Macintosh/20070728) MIME-Version: 1.0 To: Maksim Yevmenkin References: <4717FDF1.4030909@elischer.org> In-Reply-To: Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: FreeBSD Net Subject: Re: tcp analysis tool? 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: Fri, 19 Oct 2007 01:31:33 -0000 Maksim Yevmenkin wrote: > On 10/18/07, Julian Elischer wrote: >> does anyone have a favourite tool for analysing tcp flows to easily figure out why a transfer is slow? >> >> I am hoping for something that can help visualise the flow as one of those >> "two timeline poles with lines between them" diagrams.. >> >> (that doesn't require too much extra software to be loaded. > > i used tcptrace at one point. > > http://jarok.cs.ohiou.edu/software/tcptrace/ > > works on dumps produced by tcpdump and can do some plots and provides > some statistical data. > > thanks, > max thanks.. I see from the man page it can do what I want!