From owner-tcp-impl@lerc.nasa.gov Sun Apr 2 01:49:31 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id BAA22267 for ; Sun, 2 Apr 2000 01:49:30 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id WAA20888 for tcp-impl-outgoing; Sat, 1 Apr 2000 22:55:42 -0500 (EST) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id WAA20544; Sat, 1 Apr 2000 22:42:24 -0500 (EST) From: jeffallen@acninc.net Received: by seraph3.lerc.nasa.gov; id WAA06475; Sat, 1 Apr 2000 22:42:23 -0500 (EST) Received: from host-209-214-98-205.sav.bellsouth.net(209.214.98.205) by seraph3.lerc.nasa.gov via smap (V5.0) id xma006355; Sat, 1 Apr 00 22:41:44 -0500 Subject: Would you like to save 30% on your phone bills and... 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Come take a look at: http://www.ffanet.com/links/Makemoneyback.htm jeffallen@sourcenet.org http://www.whathasworked.homestead.com From owner-tcp-impl@lerc.nasa.gov Thu Apr 20 21:29:07 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id VAA23959 for ; Thu, 20 Apr 2000 21:29:07 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id SAA02983 for tcp-impl-outgoing; Thu, 20 Apr 2000 18:45:02 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id SAA02958; Thu, 20 Apr 2000 18:44:59 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id SAA11736; Thu, 20 Apr 2000 18:44:59 -0400 (EDT) Received: from bbcr.uwaterloo.ca(129.97.34.2) by seraph3.lerc.nasa.gov via smap (V5.0) id xma011723; Thu, 20 Apr 00 18:44:40 -0400 Received: from hotmail.com (boutaba.uwaterloo.ca [129.97.34.80]) by bbcr.uwaterloo.ca (8.8.8/8.8.8) with ESMTP id RAA28543; Thu, 20 Apr 2000 17:33:53 -0400 (EDT) Message-ID: <38FF77B9.BC3D2D29@hotmail.com> Date: Thu, 20 Apr 2000 17:33:45 -0400 From: Networking 2000 Organization: Networking 2000 X-Mailer: Mozilla 4.61 [en] (Win98; U) X-Accept-Language: en MIME-Version: 1.0 Subject: Networking 2000 Call for Participation Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit +--------------------------------------------------------------+ | apologies if you receive multiple copies of this email | +--------------------------------------------------------------+ IFIP NETWORKING 2000 PARIS, May 14-19, 2000 CALL FOR PARTICIPATION http://netconf.lip6.fr/net2000 Networking 2000 conference is a joint conference of: HPN (High Performance Networking) Aaren 1987, Liege 1988, Berlin 1990, Liege 1992, Grenoble 1994, Palma 1995, New York 1997, Vienna 1998, Paris 2000. BC (Broadband Communications) Paris 1995, Montreal 1996, Lisboa 1997, Stuttgart 1998, Hong-Kong 1999, Paris 2000. PCN (Performance of Communication Networks) Paris 1981, Zurich 1984, Rio de Janeiro 1987, Barcelona 1990, Raleigh 1993, Lund 1998, Paris 2000. In addition to the conference program with its 3 parallel tracks, 12 tutorials and 9 mini-conferences featuring hot topics in networking are scheduled. -------------------------------------------------------------------------- From owner-tcp-impl@lerc.nasa.gov Mon Apr 24 14:43:35 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA11887 for ; Mon, 24 Apr 2000 14:43:34 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA01557 for tcp-impl-outgoing; Mon, 24 Apr 2000 12:09:48 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id MAA01537 for ; Mon, 24 Apr 2000 12:09:45 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id MAA22765; Mon, 24 Apr 2000 12:09:42 -0400 (EDT) Received: from inetfw.sonycsl.co.jp(203.137.129.4) by seraph3.lerc.nasa.gov via smap (V5.0) id xma022652; Mon, 24 Apr 00 12:08:58 -0400 Received: from playground.csl.sony.co.jp (playground.csl.sony.co.jp [43.27.100.210]) by inetfw.sonycsl.co.jp (8.9.3+3.2W/3.7Ws3/inetfw/2000030111/smtpfeed 1.01) with ESMTP id BAA90038; Tue, 25 Apr 2000 01:08:51 +0900 (JST) Received: from localhost (localhost [127.0.0.1]) by playground.csl.sony.co.jp (8.9.3/8.9.3) with ESMTP id BAA13178; Tue, 25 Apr 2000 01:18:13 +0900 (JST) (envelope-from nishida@csl.sony.co.jp) To: end2end-interest@ISI.EDU, tcp-impl@grc.nasa.gov Cc: nishida@csl.sony.co.jp Subject: tcpillust-1.0a released X-Mailer: Mew version 1.94b19 on Emacs 19.34 / Mule 2.3 (SUETSUMUHANA) Mime-Version: 1.0 Content-Type: Text/Plain; charset=us-ascii Content-Transfer-Encoding: 7bit Message-Id: <20000425011813B.nishida@csl.sony.co.jp> Date: Tue, 25 Apr 2000 01:18:13 +0900 From: Yoshifumi Nishida X-Dispatcher: imput version 990401(IM113) Lines: 23 Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit A graphical TCP connection analysis tool: "tcpillust" is now available at: ftp://ftp.csl.sony.co.jp/CSL/nishida/tcpillust.tar.gz Tcpillust takes tcpdump file(s) specified at the command line and draw pictures like figures in the ``TCP/IP Illustrated'' series. If you're interested, please check my web site: http://www.csl.sony.co.jp/person/nishida/tcpillust.html You can see sample screen images of tcpillust. Currently, I tested only on freebsd-3.4 with tcl8.2/tk8.2. If you have any problem for building tcpillust, please let me know. Feedbacks, comments, suggestions and bug-reports are welcome. P.S. if you're looking for a presentation software on UNIX, please check http://www.csl.sony.co.jp/person/nishida/magicpoint.html -- Yoshifumi Nishida Sony Computer Science Laboratories, Inc. From owner-tcp-impl@lerc.nasa.gov Tue Apr 25 10:17:29 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id KAA13133 for ; Tue, 25 Apr 2000 10:17:29 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id HAA26427 for tcp-impl-outgoing; Tue, 25 Apr 2000 07:46:05 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id HAA26417 for ; Tue, 25 Apr 2000 07:46:03 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id HAA17195; Tue, 25 Apr 2000 07:46:02 -0400 (EDT) Received: from prv-mail20.provo.novell.com(137.65.81.122) by seraph3.lerc.nasa.gov via smap (V5.0) id xma017166; Tue, 25 Apr 00 07:45:53 -0400 Received: from INET-PRV-Message_Server by prv-mail20.provo.novell.com with Novell_GroupWise; Tue, 25 Apr 2000 05:39:55 -0600 Message-Id: X-Mailer: Novell GroupWise Internet Agent 5.5.3.1 Date: Tue, 25 Apr 2000 05:39:38 -0600 From: "Narsimharao Nagampalli" To: , Cc: "KV Sudha" Subject: Conformance Testing Tools For TCP/IP Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Disposition: inline Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by lombok-fi.lerc.nasa.gov id HAA26418 Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 8bit Hi All, We are interested in information regarding Conformance Testing Tools and Test Suites for complete TCP/IP stack. Appreciate if anybody can throw some pointers. Thanks, Narsi From owner-tcp-impl@lerc.nasa.gov Tue Apr 25 14:58:51 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA22513 for ; Tue, 25 Apr 2000 14:58:51 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA04388 for tcp-impl-outgoing; Tue, 25 Apr 2000 12:18:36 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id MAA04373 for ; Tue, 25 Apr 2000 12:18:34 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id MAA22233; Tue, 25 Apr 2000 12:18:34 -0400 (EDT) Received: from deliverator.sgi.com(204.94.214.10) by seraph3.lerc.nasa.gov via smap (V5.0) id xma022216; Tue, 25 Apr 00 12:18:14 -0400 Received: from cthulhu.engr.sgi.com (cthulhu.engr.sgi.com [192.26.80.2]) by deliverator.sgi.com (980309.SGI.8.8.8-aspam-6.2/980310.SGI-aspam) via ESMTP id JAA08827; Tue, 25 Apr 2000 09:13:26 -0700 (PDT) mail_from (zamsden@clock.engr.sgi.com) Received: from clock.engr.sgi.com (clock.engr.sgi.com [163.154.34.45]) by cthulhu.engr.sgi.com (980427.SGI.8.8.8/970903.SGI.AUTOCF) via ESMTP id JAA97793; Tue, 25 Apr 2000 09:18:07 -0700 (PDT) mail_from (zamsden@clock.engr.sgi.com) Received: from clock.engr.sgi.com (localhost [127.0.0.1]) by clock.engr.sgi.com (980427.SGI.8.8.8/970903.SGI.AUTOCF) via ESMTP id JAA16428; Tue, 25 Apr 2000 09:28:33 -0700 (PDT) Message-Id: <200004251628.JAA16428@clock.engr.sgi.com> X-Mailer: exmh version 2.0.2 2/24/98 To: "Narsimharao Nagampalli" Cc: "KV Sudha" Cc: tcp-impl@grc.nasa.gov, end2end-interest@ISI.EDU Subject: Re: Conformance Testing Tools For TCP/IP From: Zachary Amsden In-Reply-To: Your message of "Tue, 25 Apr 2000 05:39:38 MDT." Date: Tue, 25 Apr 2000 09:28:33 -0700 Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk check out this RFC: 2398 Some Testing Tools for TCP Implementors. S. Parker, C. Schmechel. August 1998. (Format: TXT=24107 bytes) (Also FYI0033) (Status: INFORMATIONAL) -- Zachary Amsden zamsden@engr.sgi.com 3-6919 31-2-510 Core Protocols From owner-tcp-impl@lerc.nasa.gov Tue Apr 25 15:00:40 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id PAA22624 for ; Tue, 25 Apr 2000 15:00:40 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA05453 for tcp-impl-outgoing; Tue, 25 Apr 2000 12:26:55 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id MAA05412 for ; Tue, 25 Apr 2000 12:26:52 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id MAA23348; Tue, 25 Apr 2000 12:26:50 -0400 (EDT) Received: from f82.law8.hotmail.com(216.33.241.82) by seraph3.lerc.nasa.gov via smap (V5.0) id xma023305; Tue, 25 Apr 00 12:26:19 -0400 Received: (qmail 15388 invoked by uid 0); 25 Apr 2000 16:26:18 -0000 Message-ID: <20000425162618.15387.qmail@hotmail.com> Received: from 149.149.39.109 by www.hotmail.com with HTTP; Tue, 25 Apr 2000 09:26:18 PDT X-Originating-IP: [149.149.39.109] From: "Srinivas Kurla" To: NNARASIMHARAO@novell.com, tcp-impl@grc.nasa.gov, end2end-interest@ISI.EDU Cc: KVsudha@novell.com Subject: Re: Conformance Testing Tools For TCP/IP Date: Tue, 25 Apr 2000 11:26:18 CDT Mime-Version: 1.0 Content-Type: text/plain; format=flowed Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk See RFC 2398 for various TCP testing, analysis tools!!. Srinivas Kurla > >Hi All, > >We are interested in information regarding Conformance Testing Tools and >Test Suites for complete TCP/IP stack. Appreciate if anybody can throw some >pointers. > >Thanks, >Narsi > ************************************************************ Thought of the Week: "Confidence comes from not always being correct but not fearing to be wrong". SRINIVAS KURLA ;-) 340, North Walnut Avenue, P.O. BOX: 11943, Apt#5, Tennessee Technological Univ', Cookeville, TN -38501. Cookeville, TN -38505. ph: (931)-372-0134 ph:(931)-372-3447(office) :(931)-372-3264(Telecom lab) E-mail: kurla@hotmail.com E-mail: srk9365@tntech.edu ************************************************************ ________________________________________________________________________ Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com From owner-tcp-impl@lerc.nasa.gov Tue Apr 25 17:53:56 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id RAA27127 for ; Tue, 25 Apr 2000 17:53:56 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id PAA02880 for tcp-impl-outgoing; Tue, 25 Apr 2000 15:34:52 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id PAA02866 for ; Tue, 25 Apr 2000 15:34:51 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id PAA20442; Tue, 25 Apr 2000 15:34:49 -0400 (EDT) Received: from unknown(209.31.7.46) by seraph3.lerc.nasa.gov via smap (V5.0) id xma020427; Tue, 25 Apr 00 15:34:32 -0400 Received: from ehsco.com (ferret.ntrg.com [192.168.10.10]) by Arachnid.NTRG.com (Netscape Messaging Server 3.62) with ESMTP id 684 for ; Tue, 25 Apr 2000 12:34:28 -0700 Message-ID: <3905F343.C81AF406@ehsco.com> Date: Tue, 25 Apr 2000 12:34:28 -0700 From: "Eric A. Hall" Organization: EHS Company X-Mailer: Mozilla 4.7 [en] (WinNT; I) X-Accept-Language: en MIME-Version: 1.0 To: TCP Implementations Subject: interesting MSS handling issue Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit Saw an interesting tcpdump between UnixWare 7 and Solaris 7, where the UnixWare host was transmitting segments with 1460-byte payloads, even though timestamp and a couple of noop options were in the TCP headers (resulting in fragmentation). This did not occur with connections between similar UnixWare hosts; in those cases the host sent 1448-byte payloads (leaving room for timestamp and noops). The only thing that shows up different between the UW-Sol and UW-UW connections is that Solaris put the MSS option at the end of the option list, while UW puts it at the beginning: UW7 returns: 09:18:38.817464 btstche.bld.cqg.com.shell > bvt.bld.cqg.com.1017: S 13303670:13303670(0) ack 2674166220 win 24820 Solaris returns: 09:19:44.222169 bsldev.bld.cqg.com.shell > bvt.bld.cqg.com.1014: S 2501322619:2501322619(0) ack 2690620994 win 10136 (DF) Possible explanation: UW is processing options linearly, so it is starting with a default MSS, subtracting segment space for options like SACK and timestamp as needed, and then sees MSS of 1460 which overrides the adjustments. Has this happened anywhere else? Has putting MSS at the end of the option list triggered this sort of problem anywhere else, or has UW7 shown this problem with other platforms that put MSS somewhere other than at the beginning. -- Eric A. Hall ehall@ehsco.com +1-650-685-0557 http://www.ehsco.com From owner-tcp-impl@lerc.nasa.gov Fri Apr 28 09:56:00 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA01312 for ; Fri, 28 Apr 2000 09:55:59 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id GAA02253 for tcp-impl-outgoing; Fri, 28 Apr 2000 06:49:14 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id GAA02241 for ; Fri, 28 Apr 2000 06:49:12 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id GAA16236; Fri, 28 Apr 2000 06:49:11 -0400 (EDT) Received: from penguin-ext.wise.edt.ericsson.se(194.237.142.110) by seraph3.lerc.nasa.gov via smap (V5.0) id xma016226; Fri, 28 Apr 00 06:49:07 -0400 Received: from lt.eth.ericsson.se (lt.eth.ericsson.se [164.48.158.205]) by penguin.wise.edt.ericsson.se (8.9.3/8.9.3/WIREfire-1.5) with ESMTP id MAA13676; Fri, 28 Apr 2000 12:48:57 +0200 (MET DST) Received: from eth.ericsson.se by lt.eth.ericsson.se (8.8.8+Sun/SMI-SVR4) id MAA16454; Fri, 28 Apr 2000 12:48:50 +0200 (MET DST) Message-ID: <39096C91.2337917D@eth.ericsson.se> Date: Fri, 28 Apr 2000 12:48:49 +0200 From: =?iso-8859-1?Q?P=E9ter=20Kr=E9mer?= Organization: ETH/RL/S X-Mailer: Mozilla 4.7 [en] (X11; I; SunOS 5.6 sun4u) X-Accept-Language: en MIME-Version: 1.0 To: tcp-impl@grc.nasa.gov CC: Narsimharao Nagampalli Subject: Re: Conformance Testing Tools For TCP/IP References: Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit Hi, Narsimharao Nagampalli wrote: > We are interested in information regarding Conformance Testing > Tools and Test Suites for complete TCP/IP stack. Appreciate if > anybody can throw some pointers. We're dealing with conformance test of Internet protocols (TCP and IPv6). We wrote test cases (~180) for IPv6 in TTCN, which is an abstract notation developed for conformance test. We also have some test cases for TCP congestion control (slow start, congestion avoidance, fast recovery and retransmit) and for connection establishment and closing are being prepared. Please, feel free to contact me for further information. Bye, -- Peter Kremer E-mail: Peter.Kremer@eth.ericsson.se Ericsson Kft. Tel: +36-1-437-7033 Conformance Center ETH/RL/S Fax: +36-1-437-7767 H-1300, Budapest 3., P.O. Box 107 From owner-tcp-impl@lerc.nasa.gov Fri Apr 28 14:48:01 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA08725 for ; Fri, 28 Apr 2000 14:48:01 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA12461 for tcp-impl-outgoing; Fri, 28 Apr 2000 12:29:09 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id MAA12428 for ; Fri, 28 Apr 2000 12:29:07 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id MAA26738; Fri, 28 Apr 2000 12:29:06 -0400 (EDT) Received: from goose.prod.itd.earthlink.net(207.217.120.18) by seraph3.lerc.nasa.gov via smap (V5.0) id xma026686; Fri, 28 Apr 00 12:28:30 -0400 Received: from erols.com (dialup-63.208.186.136.Baltimore1.Level3.net [63.208.186.136]) by goose.prod.itd.earthlink.net (8.9.3/8.9.3) with ESMTP id JAA05499; Fri, 28 Apr 2000 09:28:26 -0700 (PDT) Message-ID: <3909BC15.404913BC@erols.com> Date: Fri, 28 Apr 2000 12:28:05 -0400 From: Paula DuFour Reply-To: fdufour@erols.com Organization: The DuFour Family X-Mailer: Mozilla 4.72 [en]C-CCK-MCD NSCPCD47 (Win98; I) X-Accept-Language: en MIME-Version: 1.0 CC: tcp-impl@grc.nasa.gov Subject: Question regarding direction TCP/IP development References: <39096C91.2337917D@eth.ericsson.se> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit Hello, I am a graduate student and I am attempting to understand the developmental direction of the applications which use TCP/IP protocols to communicate through the network. I have seen in the discussion of NFSv4 an encouragement to use TCP rather than UDP for communications on the network due to the lack of congestion control in UDP. I have seen some discussions of changing UDP to have congestion control mechanisms. I just read this morning Sally Floyd's ietf draft regarding the use of ECN field within IP to pass information regarding congestion to the encapsulating protocols. Would anyone be able to give me a good feel for what direction TCP/IP will take with respect to congestion control? Paula DuFour Graduate Student Telecommunications and Computer SEAS George Washington University From owner-tcp-impl@lerc.nasa.gov Sun Apr 30 14:39:30 2000 Received: from lombok-fi.lerc.nasa.gov (lombok-fi.lerc.nasa.gov [139.88.112.33]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA03734 for ; Sun, 30 Apr 2000 14:39:29 -0400 (EDT) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id LAA13323 for tcp-impl-outgoing; Sun, 30 Apr 2000 11:49:16 -0400 (EDT) Received: from seraph3.lerc.nasa.gov (firewall-user@guardian03.lerc.nasa.gov [139.88.146.12]) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) with ESMTP id LAA13316 for ; Sun, 30 Apr 2000 11:49:13 -0400 (EDT) Received: by seraph3.lerc.nasa.gov; id LAA22336; Sun, 30 Apr 2000 11:48:58 -0400 (EDT) Received: from smtp1.cluster.oleane.net(195.25.12.16) by seraph3.lerc.nasa.gov via smap (V5.0) id xma022298; Sun, 30 Apr 00 11:48:00 -0400 Received: from Philippr.dial.oleane.com (dyn-1-1-167.Vin.dialup.oleane.fr [195.25.4.167]) by smtp1.cluster.oleane.net with ESMTP id RAA53786; Sun, 30 Apr 2000 17:47:37 +0200 (CEST) Message-Id: <4.3.2.20000430153031.00a8e520@pop.dial.oleane.com> X-Sender: pr018@pop.dial.oleane.com X-Mailer: QUALCOMM Windows Eudora Version 4.3 Date: Sun, 30 Apr 2000 17:47:52 +0200 To: tcp-impl@lerc.nasa.gov From: Ragon Philippe Subject: Bad implementation of TCP fast retransmit by Microsoft ? Cc: pragon@nortelnetworks.com Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="=====================_21295538==_" Sender: owner-tcp-impl@lerc.nasa.gov Precedence: bulk --=====================_21295538==_ Content-Type: text/plain; charset="us-ascii"; format=flowed Being involved in the development of a radio network, I had to study the trace of an HTTP session that performed very badly in order to assess whether it was due to the radio part of the network. I am attaching the trace captured on the server, because I would like to have the opinion of experts on this list to confirm / infirm my conclusions. Context : The client (Internet Explorer) is running on a Windows 95 laptop connected to a radio mobile phone. The server (Internet Information Server 4) is running on a Windows NT 4 SP6 desktop on an Ethernet LAN. A tunneling protocol is used between intermediate nodes physically connected by an Ethernet network ==> MTU is set to 1450 on the client discounting for the tunnel overhead, in order to avoid fragmentation and re-assembly at tunnel end-points ==> the client proposes an MSS of 1410 The radio link introduces an important latency that results in a measured RTT of 9s for a full-size downlink (server to client) packet that is well over the initial RTO of 3s of TCP implementation of Microsoft. In order to study the downloading of a large image without being annoyed by this discrepancy between the assumed RTT and the real one, a persistent HTTP connection is opened to request a short page first (frame 1 to 14) to train TCP. Like that, when the request for the large image is issued (frame 15) the RTO for the TCP connection is 12s i.e. above the real RTT (9s). Frame numbers appearing in the text below refer to numbers in the attached trace. Question / Problem 1 : The ACK for frame 19 has been lost by the network. Therefore, the content of frame 19 is repeated 12s later in frame 23. Then ACK for frame 21 arrives (of course also acknowledging frame 19) The server reacts by sending a packet in sequence with what has been ACKed, (i.e. SN = end of frame 21 + 1) instead of in sequence with the last packet sent (i.e. SN = end of frame 22 + 1), hence repeating this packet. Is this correct, considering that packet in frame 22 was not (for some reason) a full-size one ? Remark : from this point the RTO is around 24 s Question / Problem 2 : Frame 32 is a repetition of frame 26 after 7s. Because RTO at that moment is close to 24s we have either : a buggy early re-transmission but it should not be the case because this known Windows problem is supposed to be corrected in SP6 for NT 4 that is in use for the server or : a buggy fast retransmit. There are two reasons for which I am saying buggy : - fast retransmit has been triggered by a second duplicate ACK instead of a third as mandated by RFC 2581. A confirmation of this lack of compliancy on the part of Microsoft appears again with frame 43 which repeats frame 37 after the reception of a second duplicate ACK - the second duplicate ACK is not a duplicate ACK. The ACK sequence we have is ACK 48714, ACK 48714 and ACK 48855. I am right on this point ? Question / Problem 3 : After frame 26 has been repeated by frame 32, the ACK for frame 26 arrives (on time). This triggers the repetition of frames 28 and 30 with frames 34 and 35 instead of continuing in sequence with the last packet sent (frame 30). Said otherwise, I would expect the sending of a packet starting with SN 53085 instead of 50265 for frame 34 Conclusion : A single lost ACK triggers a cascade of unnecessary repetitions that are due to : - a bad implementation of fast retransmit, - the left side of the window that does not progress as it should. The problem is self-sustaining as demonstrated by the end of the trace (not provided in the file attached which has been cut to a reasonable size) due the following pattern : - early fast retransmit triggers undue repetitions - undue repetitions trigger early fast retransmit Between undue repetitions, the left side of the window progress a little bit, thanks to what the transfer of the image reaches its end, but only after a very looong time. --=====================_21295538==_ Content-Type: text/plain; charset="us-ascii" Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 1 42.845 TCP ....S., len: 24, seq: 3467580-3467603, ack: 0, win: 8192 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0x9E04; Proto = TCP; Len: 64 + TCP: ....S., len: 24, seq: 3467580-3467603, ack: 0, win: 8192, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 2 42.846 TCP .A..S., len: 4, seq: 41191-41194, ack: 3467581, win: 8460, Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA115; Proto = TCP; Len: 44 + TCP: .A..S., len: 4, seq: 41191-41194, ack: 3467581, win: 8460, src: 80 dst: 1041 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 3 45.726 TCP ....S., len: 24, seq: 3467580-3467603, ack: 0, win: 8192 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA004; Proto = TCP; Len: 64 + TCP: ....S., len: 24, seq: 3467580-3467603, ack: 0, win: 8192, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 4 45.726 TCP .A...., len: 0, seq: 41192-41192, ack: 3467581, win: 8460, Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA215; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 41192-41192, ack: 3467581, win: 8460, src: 80 dst: 1041 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 5 45.804 TCP .A..S., len: 4, seq: 41191-41194, ack: 3467581, win: 8460, Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA315; Proto = TCP; Len: 44 + TCP: .A..S., len: 4, seq: 41191-41194, ack: 3467581, win: 8460, src: 80 dst: 1041 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 6 50.503 TCP .A...., len: 0, seq: 3467581-3467581, ack: 41192, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA104; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3467581-3467581, ack: 41192, win: 8460, src: 1041 dst: 80 page 1 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 7 50.858 HTTP GET Request (from client using port 1041) 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA204; Proto = TCP; Len: 302 + TCP: .AP..., len: 262, seq: 3467581-3467842, ack: 41192, win: 8460, src: 1041 dst: 80 + HTTP: GET Request (from client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 8 50.860 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA415; Proto = TCP; Len: 653 + TCP: .AP..., len: 613, seq: 41192-41804, ack: 3467843, win: 8198, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 9 50.868 TCP .A...., len: 0, seq: 3467843-3467843, ack: 41192, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA404; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3467843-3467843, ack: 41192, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 10 56.559 HTTP GET Request (from client using port 1041) 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA504; Proto = TCP; Len: 302 + TCP: .AP..., len: 262, seq: 3467581-3467842, ack: 41192, win: 8460, src: 1041 dst: 80 + HTTP: GET Request (from client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 11 56.559 TCP .A...., len: 0, seq: 41805-41805, ack: 3467843, win: 8198, Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA515; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 41805-41805, ack: 3467843, win: 8198, src: 80 dst: 1041 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 12 56.822 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP page 2 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA615; Proto = TCP; Len: 653 + TCP: .AP..., len: 613, seq: 41192-41804, ack: 3467843, win: 8198, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 13 59.145 TCP .A...., len: 0, seq: 3467843-3467843, ack: 41805, win: 7847 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA604; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3467843-3467843, ack: 41805, win: 7847, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 14 65.865 TCP .A...., len: 0, seq: 3467843-3467843, ack: 41805, win: 7847 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA704; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3467843-3467843, ack: 41805, win: 7847, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 15 76.743 HTTP GET Request (from client using port 1041) 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA804; Proto = TCP; Len: 312 + TCP: .AP..., len: 272, seq: 3467843-3468114, ack: 41805, win: 7847, src: 1041 dst: 80 + HTTP: GET Request (from client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 16 76.744 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA715; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 41805-43214, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 17 76.744 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA815; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 43215-44624, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) page 3 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 18 82.187 TCP .A...., len: 0, seq: 3468115-3468115, ack: 43215, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAA04; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 43215, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 19 82.187 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xA915; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 44625-46034, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 20 86.028 TCP .A...., len: 0, seq: 3468115-3468115, ack: 44625, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAC04; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 44625, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 21 86.028 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAA15; Proto = TCP; Len: 1450 + TCP: .AP..., len: 1410, seq: 46035-47444, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 22 90.976 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAB15; Proto = TCP; Len: 1309 + TCP: .A...., len: 1269, seq: 47445-48713, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 23 94.381 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP page 4 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAC15; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 44625-46034, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 24 95.629 TCP .A...., len: 0, seq: 3468115-3468115, ack: 47445, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB104; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 47445, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 25 95.629 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAD15; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 47445-48854, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 26 95.629 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAE15; Proto = TCP; Len: 1450 + TCP: .AP..., len: 1410, seq: 48855-50264, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 27 97.549 TCP .A...., len: 0, seq: 3468115-3468115, ack: 48714, win: 7191 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB204; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 48714, win: 7191, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 28 97.549 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xAF15; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 50265-51674, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) page 5 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 29 99.470 TCP .A...., len: 0, seq: 3468115-3468115, ack: 48714, win: 7191 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB404; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 48714, win: 7191, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 30 99.470 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB015; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 51675-53084, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 31 102.350 TCP .A...., len: 0, seq: 3468115-3468115, ack: 48855, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB504; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 48855, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 32 102.394 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB115; Proto = TCP; Len: 1450 + TCP: .AP..., len: 1410, seq: 48855-50264, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 33 104.750 TCP .A...., len: 0, seq: 3468115-3468115, ack: 50265, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB804; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 50265, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 34 104.750 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties page 6 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB215; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 50265-51674, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 35 104.750 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB315; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 51675-53084, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 36 107.150 TCP .A...., len: 0, seq: 3468115-3468115, ack: 51675, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB904; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 51675, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 37 107.150 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB415; Proto = TCP; Len: 1450 + TCP: .AP..., len: 1410, seq: 53085-54494, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 38 109.551 TCP .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xBB04; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 39 109.551 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB515; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 54495-55904, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) page 7 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 40 110.991 TCP .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xBD04; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 41 110.991 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB615; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 55905-57314, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 42 113.391 TCP .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xBE04; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 43 113.391 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB715; Proto = TCP; Len: 1301 + TCP: .AP..., len: 1261, seq: 53085-54345, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 44 115.792 TCP .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xBF04; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 53085, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 45 115.792 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol page 8 Network Monitor trace Sun 04/30/00 14:44:55 27-04_TCP_Server_3.TXT + IP: ID = 0xB815; Proto = TCP; Len: 1167 + TCP: .AP..., len: 1127, seq: 57315-58441, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 46 118.192 TCP .A...., len: 0, seq: 3468115-3468115, ack: 54495, win: 8460 47.217.248.130 Srv Guillemot IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xC104; Proto = TCP; Len: 40 + TCP: .A...., len: 0, seq: 3468115-3468115, ack: 54495, win: 8460, src: 1041 dst: 80 ********************************************************************************************************************************* Frame Time Protocol Description Src Other Addr Dst Other Addr Type Other Addr 47 118.219 HTTP Response (to client using port 1041) Srv Guillemot 47.217.248.130 IP + FRAME: Base frame properties + ETHERNET: ETYPE = 0x0800 : Protocol = IP: DOD Internet Protocol + IP: ID = 0xB915; Proto = TCP; Len: 1450 + TCP: .A...., len: 1410, seq: 54495-55904, ack: 3468115, win: 7926, src: 80 dst: 1041 + HTTP: Response (to client using port 1041) page 9 --=====================_21295538==_ Content-Type: text/plain; charset="us-ascii"; format=flowed --------------------------------------------------------------------- Philippe Ragon / Tour Atlas / 10, villa d'Este/ 75013 Paris/ FRANCE Telephone & Fax : (33) 01 45 70 79 53 E-mail : phragon@dial.oleane.com --------------------------------------------------------------------- --=====================_21295538==_--