From owner-freebsd-net@FreeBSD.ORG Fri Oct 19 06:42:17 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 B5FCC16A417 for ; Fri, 19 Oct 2007 06:42:17 +0000 (UTC) (envelope-from fox@verio.net) Received: from dfw-smtpout1.email.verio.net (dfw-smtpout1.email.verio.net [129.250.36.41]) by mx1.freebsd.org (Postfix) with ESMTP id 92ED813C458 for ; Fri, 19 Oct 2007 06:42:17 +0000 (UTC) (envelope-from fox@verio.net) Received: from [129.250.36.63] (helo=dfw-mmp3.email.verio.net) by dfw-smtpout1.email.verio.net with esmtp id 1IilYm-0007lN-K0 for freebsd-net@freebsd.org; Fri, 19 Oct 2007 06:42:16 +0000 Received: from [129.250.40.241] (helo=limbo.int.dllstx01.us.it.verio.net) by dfw-mmp3.email.verio.net with esmtp id 1IilYm-0002Uc-8I for freebsd-net@freebsd.org; Fri, 19 Oct 2007 06:42:16 +0000 Received: by limbo.int.dllstx01.us.it.verio.net (Postfix, from userid 1000) id AD4B88E296; Fri, 19 Oct 2007 01:42:15 -0500 (CDT) Date: Fri, 19 Oct 2007 01:42:15 -0500 From: David DeSimone To: freebsd-net@freebsd.org Message-ID: <20071019064215.GB18889@verio.net> Mail-Followup-To: freebsd-net@freebsd.org References: <4717FDF1.4030909@elischer.org> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii; x-action=pgp-signed Content-Disposition: inline In-Reply-To: <4717FDF1.4030909@elischer.org> Precedence: bulk User-Agent: Mutt/1.5.9i Subject: Re: tcp analysis tool? X-BeenThere: freebsd-net@freebsd.org X-Mailman-Version: 2.1.5 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 06:42:17 -0000 -----BEGIN PGP SIGNED MESSAGE----- Hash: SHA1 Julian Elischer wrote: > > does anyone have a favourite tool for analysing tcp flows to easily figure > out why a transfer is slow? Wireshark is good for interactively examining a tcpdump trace between two hosts. It will point out (and colorize) tcp packets with bad checksums, as well as retransmitted frames. - -- David DeSimone == Network Admin == fox@verio.net "This email message is intended for the use of the person to whom it has been sent, and may contain information that is confidential or legally protected. If you are not the intended recipient or have received this message in error, you are not authorized to copy, dis- tribute, or otherwise use this message or its attachments. Please notify the sender immediately by return e-mail and permanently delete this message and any attachments. Verio, Inc. makes no warranty that this email is error or virus free. Thank you." --Lawyer Bot 6000 -----BEGIN PGP SIGNATURE----- Version: GnuPG v1.4.1 (GNU/Linux) iD8DBQFHGFHHFSrKRjX5eCoRAoVAAJ9yIZ28UHzH0prc/bmHms7s7NeesACfeI6i zKCZBWXY2AenBqPajESPLCA= =o3Jg -----END PGP SIGNATURE-----