From owner-freebsd-current@FreeBSD.ORG Wed Jul 9 15:10:18 2003 Return-Path: Delivered-To: freebsd-current@freebsd.org Received: from mx1.FreeBSD.org (mx1.freebsd.org [216.136.204.125]) by hub.freebsd.org (Postfix) with ESMTP id 3679137B40A for ; Wed, 9 Jul 2003 15:10:18 -0700 (PDT) Received: from dan.emsphone.com (dan.emsphone.com [199.67.51.101]) by mx1.FreeBSD.org (Postfix) with ESMTP id 829EF43F93 for ; Wed, 9 Jul 2003 15:10:17 -0700 (PDT) (envelope-from dan@dan.emsphone.com) Received: (from dan@localhost) by dan.emsphone.com (8.12.9/8.12.9) id h69M9wMB064067; Wed, 9 Jul 2003 17:09:58 -0500 (CDT) (envelope-from dan) Date: Wed, 9 Jul 2003 17:09:58 -0500 From: Dan Nelson To: Kenneth Culver Message-ID: <20030709220958.GO39506@dan.emsphone.com> References: <20030709173114.W5579@alpha.yumyumyum.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20030709173114.W5579@alpha.yumyumyum.org> X-OS: FreeBSD 5.1-CURRENT X-message-flag: Outlook Error User-Agent: Mutt/1.5.4i cc: Jeff Roberson cc: John Polstra cc: Julian Elischer cc: current@freebsd.org Subject: Re: wierd dsl performance with -CURRENT X-BeenThere: freebsd-current@freebsd.org X-Mailman-Version: 2.1.1 Precedence: list List-Id: Discussions about the use of FreeBSD-current List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 09 Jul 2003 22:10:18 -0000 In the last episode (Jul 09), Kenneth Culver said: > > look of any large values in the timestamps and see if there is > > anything before that indicates a lost packet or a re-ordered one or > > something (or a retransmitted ack) > > > > The key is to find the gap in the arriving packets and figure out > > what caused it.. > > > Alright, I'll have to do this later this evening, don't have time > right now. Thanks for the help though. Tcptrace is great for this; the tsg output graph will mark out-of-order packets and duplicate acks for you. -- Dan Nelson dnelson@allantgroup.com