From mailman-bounces@mailman.isi.edu Sat Jan 1 09:17:11 2005 Received: from gamma.isi.edu (gamma.isi.edu [128.9.144.145]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id JAA23156 for ; Sat, 1 Jan 2005 09:17:11 -0500 (EST) Received: from gamma.isi.edu (localhost [127.0.0.1]) by gamma.isi.edu (8.11.6p2+0917/8.11.2) with ESMTP id j01DnwQ25496 for ; Sat, 1 Jan 2005 05:49:58 -0800 (PST) MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Subject: isi.edu mailing list memberships reminder From: mailman-owner@ISI.EDU To: tcpsat-archive@ietf.org X-No-Archive: yes Message-ID: Date: Sat, 01 Jan 2005 05:12:14 -0800 Precedence: bulk X-BeenThere: mailman@mailman.isi.edu X-Mailman-Version: 2.1.4 List-Id: Mailman site list X-List-Administrivia: yes Sender: mailman-bounces@mailman.isi.edu Errors-To: mailman-bounces@mailman.isi.edu X-ISI-4-30-3-MailScanner: Found to be clean X-MailScanner-From: mailman-bounces@mailman.isi.edu Content-Transfer-Encoding: 7bit This is a reminder, sent out once a month, about your isi.edu mailing list memberships. 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Passwords for tcpsat-archive@lists.ietf.org: List Password // URL ---- -------- tcpsat@isi.edu wuzuxo http://mailman.isi.edu/mailman/options/tcpsat/tcpsat-archive%40lists.ietf.org From bulletin@staffadministrator.com Mon Jan 3 18:45:37 2005 Received: from ietf-mx.ietf.org (ietf-mx.ietf.org [132.151.6.1]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id SAA06473; Mon, 3 Jan 2005 18:45:37 -0500 (EST) Received: from [200.30.113.234] (helo=WEBSERVER) by ietf-mx.ietf.org with smtp (Exim 4.33) id 1Clc4u-0006Mv-8G; Mon, 03 Jan 2005 18:58:20 -0500 Received: from u3w.qaghapj.org ([95.118.210.105]) by WEBSERVER; Mon, 03 Jan 2005 19:42:06 -0400 Message-ID: From: "Administrator" To: wgchairs-admin@ietf.org Subject: ADV: Staff Announcement Date: Mon, 03 Jan 05 19:42:06 GMT X-Priority: 1 X-MSMail-Priority: High X-Mailer: eGroups Message Poster MIME-Version: 1.0 Content-Type: multipart/alternative; boundary="__.DBD_.1..021030.E1D0" X-Spam-Score: 38.0 (++++++++++++++++++++++++++++++++++++++) X-Spam-Flag: YES X-Scan-Signature: d8ae4fd88fcaf47c1a71c804d04f413d This is a multi-part message in MIME format. --__.DBD_.1..021030.E1D0 Content-Type: text/plain Content-Transfer-Encoding: quoted-printable Attention All School Staff: Teachers, Students and Faculty Members: You Must Respond By 5 P.M. 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Wednesday, January 5, 2005 Visit our website at http://www.avtechcomputers.com If you wish to unsubscribe from this list, please go to http://www.avtechcomputers.com/announcements.asp Avtech Direct 22647 Ventura Blvd. Suite 374 Woodland Hills, CA 91364 --__.DBD_.1..021030.E1D0-- From tcpsat-bounces@ISI.EDU Wed Jan 19 14:05:44 2005 Received: from gamma.isi.edu (gamma.isi.edu [128.9.144.145]) by ietf.org (8.9.1a/8.9.1a) with ESMTP id OAA11280 for ; Wed, 19 Jan 2005 14:05:43 -0500 (EST) Received: from gamma.isi.edu (localhost [127.0.0.1]) by gamma.isi.edu (8.11.6p2+0917/8.11.2) with ESMTP id j0JIi2Q23254; Wed, 19 Jan 2005 10:44:02 -0800 (PST) Received: from vapor.isi.edu (vapor.isi.edu [128.9.64.64]) by gamma.isi.edu (8.11.6p2+0917/8.11.2) with ESMTP id j0JIh3Q23186 for ; Wed, 19 Jan 2005 10:43:03 -0800 (PST) Received: from nak.isi.edu (26.sub-69-83-57.myvzw.com [69.83.57.26]) by vapor.isi.edu (8.11.6p2+0917/8.11.2) with ESMTP id j0JIg2x20270 for ; Wed, 19 Jan 2005 10:42:03 -0800 (PST) Received: by nak.isi.edu (Postfix, from userid 3494) id B774263EBAF; Wed, 19 Jan 2005 10:41:44 -0800 (PST) Date: Wed, 19 Jan 2005 10:41:44 -0800 From: Aaron Falk To: tcpsat@ISI.EDU Message-ID: <20050119184132.GG4541@isi.edu> Mail-Followup-To: tcpsat@isi.edu Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.4.2.1i Organization: USC ISI X-ISI-4-32-5-MailScanner: Found to be clean X-ISI-4-30-3-MailScanner: Found to be clean, Found to be clean Subject: [tcpsat] Liaison Statement to ITU-R from the IETF Transport Directorate on TCP over Satellite Collaboration X-BeenThere: tcpsat@isi.edu X-Mailman-Version: 2.1.4 Precedence: list List-Id: "TCP over Satellite mailing list \(concluded IETF wg\)" List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Sender: tcpsat-bounces@ISI.EDU Errors-To: tcpsat-bounces@ISI.EDU X-MailScanner-From: tcpsat-bounces@isi.edu This is a heads-up to this mostly-idle list. There may be some discussion here related to the note below. Follow the link at the bottom if you'd like to read the letter from ITU-R to the IETF. --aaron ----- Forwarded message from Aaron Falk ----- From: Aaron Falk To: Valery Timofeev , Jinxing Li Cc: Mark Allman , Scott Bradner , Allison Mankin , Transport Directorate List Date: Thu, 13 Jan 2005 17:38:06 -0800 Subject: Liaison Statement to ITU-R from the IETF Transport Directorate on TCP over Satellite Collaboration User-Agent: Mutt/1.4.2.1i Organization: USC ISI Dear Director Timofeev, We were very interested to read your letter of 13 October 2004 [1] informing the IETF of a new Study Group 4 Recommendation on "Performance enhancements of TCP over satellite networks." Beyond the issue of whether the Recommendation may include RFC abstracts (we believe Scott Bradner has already addressed this), we would like to offer some technical feedback on IETF technologies and activities which might be of interest to SG4. First, we should make clear that we believe the list of IETF RFCs included in your letter seems very appropriate to improving TCP performance over satellite. In the spirit of collaboration, offered in your letter, there are several suggestions we would like to make. 1. Several of the RFCs listed have been obsoleted by new work. The table below summarizes the obsoleted RFCs: Obsolete New ======== ======== RFC2414 RFC3390 RFC2481 RFC3168 RFC2582 RFC3782 2. The IETF had a working group on TCP Performance over Satellite (tcpsat) which produced two of the RFCs on SG4's list: RFC2488, "Enhancing TCP Over Satellite Channels using Standard Mechanisms", and RFC2760, "Ongoing TCP Research Related to Satellites." This work was later generalized to encompass any 'disadvantaged' link in another working group, Performance Implications of Link Characteristics (pilc) [2]. The output from the PILC working group will likely also be of interest to SG4: o Advice for Internet Subnetwork Designers (RFC 3819) o Performance Enhancing Proxies (PEPs) Intended to Mitigate Link-Related Degradations (RFC 3135) o End-to-end Performance Implications of Slow Links (RFC 3150) o End-to-end Performance Implications of Links with Errors (RFC 3155) o Advice to link designers on link Automatic Repeat reQuest (ARQ) (RFC 3366) o TCP Performance Implications of Network Path Asymmetry (RFC 3449) 3. As satellite networks tend to be sensitive to efficient use of bandwidth, we recommend reviewing the RFCs and works-in-progress by the IETF working group on Robust Header Compression (rohc) (see [3]). 4. The IETF continues to evolve TCP in the TCP Maintenance and Minor Extensions (tcpm) working group [4]. While the group is concerned with general TCP modifications, some modifications are motivated by specific environments (e.g., wireless networks). The TCPM WG would benefit from the participation and perspective of the members of ITU-R SG4 and we encourage their participation. While the TCPSAT working group is no longer active, the mailing list continues to be maintained with over 1000 subscribers from both the IETF and satellite communities. We would like to offer the TCPSAT mailing list as a forum for additional collaboration between the ITU-R and IETF on this topic. Anyone may subscribe to this list. Instructions for subscribing may be found at [5]. Best Regards, For the IETF Transport Directorate: Aaron Falk Chair, past TCPSAT and PILC working groups Mark Allman Chair, TCPM working group Scott Bradner IETF liaison to ITU ------------------ [1] http://www.ietf.org/IESG/LIAISON/file58.PDF [2] http://www.ietf.org/html.charters/OLD/pilc-charter.html [3] http://www.ietf.org/html.charters/rohc-charter.html [4] http://www.ietf.org/html.charters/tcpm-charter.html [5] http://mailman.isi.edu/mailman/listinfo/tcpsat ----- End forwarded message ----- _______________________________________________ tcpsat mailing list tcpsat@isi.edu http://mailman.isi.edu/mailman/listinfo/tcpsat