From owner-tcpsat@lerc.nasa.gov Fri Nov 3 13:26:56 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 SMTP id NAA28831; Fri, 3 Nov 2000 13:26:55 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA29901 for tcpsat-outgoing; Fri, 3 Nov 2000 12:30:54 -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 SMTP id MAA29856 for ; Fri, 3 Nov 2000 12:30:50 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id MAA09388; Fri, 3 Nov 2000 12:30:49 -0500 Received: from store.metrodata.co.uk(194.154.181.2) by seraph3.lerc.nasa.gov via smap (V5.5) id xma009288; Fri, 3 Nov 00 12:30:17 -0500 Received: from POPPADOM ([193.114.254.141]) by store.metrodata.co.uk with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2650.21) id V8R7NMGH; Fri, 3 Nov 2000 17:43:47 -0000 Message-ID: <01ed01c045bc$58597600$8dfe72c1@metrodata.co.uk> Reply-To: "Mike Holdsworth" From: "Mike Holdsworth" To: , Subject: Some Developments - Internet Over Satellite Above 34/8Mbits Date: Fri, 3 Nov 2000 17:34:39 -0000 Organization: Metrodata Ltd MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit Hi Everyone, If anyone is currently looking at Internet Over Satellite (Or Broadcast or any satellite network) at speeds in excess of the old 34/8Mbits "standard" then this might prove interesting. Also if you are attending COMDEX in Las Vegas drop me a mail as I am there all week, and would prefer talking about Satellite Networking than whatever the rest of the people are talking about. Sorry the rest of you ;-)!! Mainly we are involved in interfacing between Satellite & Terrestrial Wide Area Networks. There are a couple of issues here that are worth noting. HSSI - High Speed Serial Interface Commonly found on Satellite Modems and Cisco Routers (Also Lucent) this interface can run at significantly higher speeds than the Cisco max of 51.84Mbits (STS-1/OC-1). A lot of the HSSI/G.703 DSUs for 8Mbits, 34Mbits and 45Mbits are not designed to work with Satellite Networks. In particular this is true of the 45Mbits/DS3 HSSI DSUs which often operate in Fractional T3 Mode, therefore generating spurious errors. As opposed to a Clear Channel DS3 DSU. Recently we supplied some 51.84Mbits HSSI to OC-3 Fiber Converters into a Broadcast Network. This seemed to be the fastest possible on HSSI. A few hours in the lab proved this completely wrong. Using short HSSI Cables we have currently tested 70Mbits using our own ATM Switches into EFDATA SDM2020 Satellite Modems. One Application we tested was 70/17Mbits as an Asymmetric Internet Backbone and this worked fine. Satellite Modem Manufacturers It seems that the main 3 Manufacturers COMTECH EFDATA, NEWTEC and RADYNE COMSTREAM are offering Standard HSSI Modules to 51.84Mbits, and offering Software Upgrade Keys to support up to 70Mbits. I'm not sure why this is the "supported" rate, though I imagine this is because to go faster you would need maybe a ASI or LVDS interface. This presents a potential problem. There aren't many IP Routers out there with ASI or LVDS modules. Also if you ramp the HSSI Module to 70Mbits what are you going to plug it into. Cisco won't support this speed. We've got a fix for this problem basically. I am just after some feedback to see which way I should take this. Currently we can easily do 70Mbits HSSI into our small 3-Port ATM Switch. We currently output this as OC-3/STM-1 ATM to an ATM interface on a Router. Most Clients are fine with ATM on a router. Would this be better if the Metrodata equipment supported Packet Over Sonet (POS)? We can go higher than 70Mbits on the HSSI Module. Clocking EFDATA SDM2020s we got to 90Mbits on the Satmod HSSI Modules in testing though this was using some proprietary HSSI Modules on the Metrodata Equipment. We are currenlty developing an ASI Module for our equipment which is expected to work at up to 130Mbits. This could then easily be interfaced into an OC-3/STM-1 ATM Port on a router. Currently the highest speed Asymmetric Application we have tested has been with the Newtec SDH 155Mbits Satellite Modems. This was 155/70Mbits using 2 Bi-Direcitonal ATM PVCS between the 2 Earth Stations. We used Single Mode Fiber Optic Modems in the 155Mbits path and HSSI Modems in the 70Mbits path. The HSSI Modules in the Metrodata equipment are actually passing ATM cells, and the Interface to the Routers was OC-3 ATM. Also, one point I would like to mention is that when we can use ATM between the 2 Metrodata boxes they require no clocking configuration. They simply operate from the Satellite Modem Clock. This may be useful in a boradcast network as you simply plug them in and forget about them, only needing to change the Modem Clocks when the client wants more speed. I've made some updates to our website at www.metrodata.co.uk which covers most of the points here. fee; free to visit and please give me feedback. Its not completely finished though and I apologise for this. I like playing with the kit too much I guess!! Regards and Have a great weekend Mike mike.holdsworth@metrodata.co.uk Satellite Product Manager ==================== www.metrodata.co.uk/satellite From owner-tcpsat@lerc.nasa.gov Tue Nov 7 07:44:41 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 SMTP id HAA16373; Tue, 7 Nov 2000 07:44:41 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id HAA03520 for tcpsat-outgoing; Tue, 7 Nov 2000 07:02:49 -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 SMTP id HAA03497 for ; Tue, 7 Nov 2000 07:02:46 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id HAA18210; Tue, 7 Nov 2000 07:02:45 -0500 Received: from swan.prod.itd.earthlink.net(207.217.120.123) by seraph3.lerc.nasa.gov via smap (V5.5) id xma018122; Tue, 7 Nov 00 07:02:09 -0500 Received: from vaio (hsa072.pool013.at001.earthlink.net [216.249.76.72]) by swan.prod.itd.earthlink.net (EL-8_9_3_3/8.9.3) with SMTP id EAA10981 for ; Tue, 7 Nov 2000 04:02:07 -0800 (PST) From: "Shirley Tseng" To: Subject: Space Internet Workshop Nov 13-15, 2000 Date: Tue, 7 Nov 2000 04:04:35 -0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit The First Joint Space Internet Workshop NASA Goddard Space Flight Center Greenbelt, Maryland November 13 - 16, 2000 http://siw.gsfc.nasa.gov/ The workshop is free of charge. This should make it simpler and easier for everyone, including civil servants, to attend. Pre-registration via the workshop web site (http://siw.gsfc.nasa.gov) is highly encouraged. Note that, as stated in the workshop announcement (which is accessible on the web site), participants are responsible for their own travel and living accommodations. SCOPE The Science, Engineering, and Standards communities are pleased to announce the first of a series of Space Internet Workshops. This series will address all issues related to Internet or Internet-like communication protocols in space environments. The vision is to bring together and integrate the Internet, the Consultative Committee for Space Data Systems, and any other applicable protocol suites, to enable transparent end-to-end Internet (or future Internet) communications to space missions resources. Communications within and between the various space environments are included. The purpose of this first workshop is to foster broadly based, comprehensive discussion of cost-effective technical solutions for the design and engineering of mission communications. The goal is to develop an understanding of the technical "territory" and to plan for working the issues in future workshops. The first workshop seeks to bring forth results and information that will help to: 1. Describe the science drivers and requirements with respect to communications and information exchange 2. Define and characterize the different communication domains for space applications 3. Identify and explore the currently available and proposed technical approaches 4. Map the technical approaches onto the operational domains 5. Identify areas where solutions do exist and areas where further study, analysis, or development is needed All types of missions * robotic and manned missions * scientific, military, and commercial spacecraft * constellations, formation-flying missions, and single nodes * nano- and micro-, and macro-satellites * relay satellites * buoys, balloons, and aircraft * planetary rovers and "space" environments, for example: * Local or Wired * In Situ * Severely Resource Constrained * Nearby * Circum-planetary * Deep Space are of interest. Issues and solutions related to space and ground systems and operations as well as mission design and implementation will be under consideration. Draft Agenda >--------------------------------------------------------------------------- -- > > -------- DRAFT -------- > > Monday Tuesday Wednesday > 13 November 14 November 15 November > ------------------------------------------------------------------------ --- > | 8:00 | | | | > | 8:30 | Register | | | > | 9:00 | Welcome | Invited - Space | Invited - Earth | > | 9:10 | Keynote - Fred Baker| | Ed Torres-Martinez | > | 9:40 | | Security - 20 | Protocols - 11 | > | 10:00 | Panel / Discussion | Security - 8 | Protocols - 1 | > | 10:20 | Applications in | Security - 9 | Protocols - 24 | > | 10:40 | Space Missions | Break / Discussion | Protocols - 31 | > | 11:00 | | Protocols - 21 | Break / Discussion | > | 11:20 | - Kul Bhasin - | Protocols - 5 | Architecture - 13 | > | 11:40 | | Protocols - 12 | Architecture - 35 | > | 12:00 | Lunch / Discussion | Lunch / Discussion | Lunch / Discussion | > | 12:20 | ... | ... | ... | > | 12:40 | ... | ... | ... | > | 1:00 | Experiments - 3 | Experiments - 28 | Experiments - 17 | > | 1:20 | Experiments - 23 | Experiments - 15 | Experiments - 26 | > | 1:40 | Experiments - 27 | Experiments - 33 | Experiments - 16 | > | 2:00 | Experiments - 7 | Experiments - 4 | Experiments - 32 | > | 2:20 | Break / Discussion | Break / Discussion | Break / Discussion | > | 2:40 | Operations - 10 | Operations - 22 | Panel / Discussion | > | 3:00 | Operations - 29 | Operations - 38 | State of Network | > | 3:20 | Operations - 25 | Operations - 37 | in Space Missions | > | 3:40 | Break / Discussion | Operations - 34 | (Protocols & | > | 4:00 | Architecture - 2 | Break / Discussion | Security) | > | 4:20 | Architecture - 30 | Architecture - 14 | | > | 4:40 | Architecture - 6 | Architecture - 19 | Wrap up | > | 5:00 | Architecture - 36 | Architecture - 18 | | > | 5:20 | Discussion | Discussion | | > | 5:40 | | | | > | 6:00 | | | | > ------------------------------------------------------------------------ --- > > > >--------------------------------------------------------------------------- --- > > 1 Protocols - > A New Multicast Routing Scheme for IP-Based LEO Satellite Networks > Ian F. Akyildiz Georgia Tech > Eylem Ekici Georgia Tech > Michael D. Bender Department of Defense > > > 2 Architecture - > Payload IP Networking With The Improved Space Architecture Concept > Dr. Carl J. Beckmann Sanders > Michael Harris Sanders > > 3 Experiments - > Internet communications for planetary exploration. > Stephen Braham Simon Fraser University > Peter Anderson Simon Fraser University > Richard Alena NASA Ames Research Center > Brian Glass NASA Ames Research Center > Pascal Lee SETI/NASA Ames Research Center > > > 4 Experiments - > High Rate TCP Communication over Geo-Stationary Distances > David Brooks Infinite Global Infrastructures > Arun Welch Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Scott Jakl Lockheed Martin Space Operations > > 5 Protocols - > Transport Protocols and Applications for Internet Use in Space > Ed Criscuolo Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > > > 6 Architecture - > File Management In Space > Anna R. Critchfield Computer Sciences Corp > Robert H. Zepp Computer Sciences Corp > > > 7 Experiments - > A Testbed for Internet Based Operations > James Cutler Stanford > Bob Twiggs Stanford > > > 8 Security - > IP Security Study for Space Applications > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > > 9 Security - > Endpoint Security Using Biometric Authentication for Secure Remote > Mission Operations > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > >10 Operations - > CHIPSat, 1st NASA UnEx Mission: Satellite Communications Via the Internet > Jason Gracilieri SpaceDev > Simon Dawson SpaceDev > Will Marchant UC Berkeley > Jonathan Wolff SpaceDev > > >11 Protocols - > Link and Routing Issues for Internet Protocols in Space > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > > >12 Protocols - > Using a Generic XML Driven Translator for Downlink and Uplink Data > Paula Holmes Motorola > >13 Architecture - > 3G - Wireless Solution > Paula Holmes Motorola > >14 Architecture - > The Potential for Using LEO Telecommunications Constellations to Support > Nanosatellite Formation Flying > Stephen Horan New Mexico State University > > >15 Experiments - > Integrating & Applying Internet Protocols with a Reconfigurable Software > Radio--The Low Power Transceiver > William Horne ITT Industries > David J. Zillig NASA Goddard 567 > Marc Harlacher ITT Industries > > >16 Experiments - > The NASA Space Network Demand Access System: A Building Block Toward the > Space Internet > William Horne ITT Industries > David J. Zillig NASA/GSFC Code 567 > > >17 Experiments - > TDRSS' History as an Internet Service Provider > Dave Israel NASA/GSFC Code 567.3 > > >18 Architecture - > The Ground Station Router Interface Device (GRID) > Dave Israel NASA/GSFC Code 567.3 > > >19 Architecture - > An IP Ground Station Architecture > Dave Israel NASA/GSFC Code 567.3 > >20 Security - > A Basis for Security Utilizing the Internet Protocol for Command and > Telemetry of Spacecrafts > Freemon Johnson III NASA/GSFC Code 584 > James Rash NASA/GSFC Code 588 > > >21 Protocols - > Intersatellite Links: Lower Layer Protocols for Autonomous Constellations > Kerri Kusza Princeton Satellite Systems > Mike Paluszek Princeton Satellite Systems > > >22 Operations - > Operations Concepts Enabled by Cooperating Internet Spacecraft > Jim Langston Computer Sciences Corp > > >23 Experiments - > Use of the Internet to expedite early integration on CHIPSat > Will Marchant UC Berkeley > Simon Dawson SpaceDev > Jason Gracilieri SpaceDev > Jonathan Wolff SpaceDev > > >24 Protocols - > TCP-Peach: A New Flow Control Scheme for Satellite IP networks. > Giacomo Morabito Georgia Tech > Ian F. Akyildiz Georgia Tech > Sergio Palazzo Georgia Tech > >25 Operations - > "Faster, Better, Cheaper" - Benefits of Internet Protocols in Space > Ron Parise Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > > >26 Experiments - > Demonstrations of Internet Protocols in Space Using TDRSS > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > Frank Hallahan Computer Sciences Corp > Thinh Le Computer Sciences Corp > > >27 Experiments - > Results of "Internet in Space" Tests Using the UoSAT-12 Satellite > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > Chris Jackson Surrey Satellite Technology Ltd > Harold Price VyTek Wireless > > >28 Experiments - > A Study of TCP Mechanisms for Distinguishing Losses Due to Errors vs. > Losses Due to Congestion > Gregory Romaniak Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Michael Rupar US Naval Research Laboratory > Mark Solsman US Naval Research Laboratory > >29 Operations - > Operations Concepts for the Mars Relay Satellite > Tim Rykowski NASA/GSFC Code 581 > Dave Israel NASA/GSFC Code 567.3 > >30 Architecture - > Flight system architectures using Internet Protocol methods > Richard G Schnurr NASA/GSFC Code 560 > >31 Protocols - > On board flight network development activity at NASA GSFC > Richard G Schnurr NASA/GSFC Code 560 > Glenn Rakow NASA/GSFC Code 561 > Evan Webb NASA/GSFC Code 561 > > >32 Experiments - > Mobile-Router > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >33 Experiments - > Deployment Tests of COTS Networking Equipment in STS and ISS > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >34 Operations - > SOMO Commercialization and the Space Internet > Jon M. Smith NASA/JSC > Dan Heimingdinger > > >35 Architecture - > Crosslink Transceiver for Integrated Navigation and Communications in > Distributed Spacecraft Systems > Patrick A. Stadter JHU/APL > > >36 Architecture - > Flight Linux: Enabling Migration of the Internet to Space-Based Systems > Pat Stakem QSS Group, Inc. > >37 Operations - > DoD Satellite Control Directions > Carl A Sunshine Aerospace > > >38 Operations - > An Operations Concept for Internet-based Satellite Instruments > G. Michael Tong NASA/GSFC Code 583 James L. Rash/Code 588 Building 23, Room E403 Advanced Architectures and Automation Branch NASA Goddard Space Flight Center Greenbelt, MD 20771 301-286-5246 (voice) 301-286-1768 (fax) From owner-tcpsat@lerc.nasa.gov Tue Nov 7 13:05:15 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 SMTP id NAA03910; Tue, 7 Nov 2000 13:05:14 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA23392 for tcpsat-outgoing; Tue, 7 Nov 2000 12:11:18 -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 SMTP id MAA23344 for ; Tue, 7 Nov 2000 12:11:16 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id MAA00434; Tue, 7 Nov 2000 12:11:12 -0500 Received: from store.metrodata.co.uk(194.154.181.2) by seraph3.lerc.nasa.gov via smap (V5.5) id xma000295; Tue, 7 Nov 00 12:10:48 -0500 Received: from POPPADOM ([193.114.254.141]) by store.metrodata.co.uk with SMTP (Microsoft Exchange Internet Mail Service Version 5.5.2650.21) id V8R7NN2F; Tue, 7 Nov 2000 17:09:58 -0000 Message-ID: <015b01c048de$3073aa00$8dfe72c1@metrodata.co.uk> Reply-To: "Mike Holdsworth" From: "Mike Holdsworth" To: "Shirley Tseng" , References: Subject: Re: Space Internet Workshop Nov 13-15, 2000 Date: Tue, 7 Nov 2000 17:14:11 -0000 Organization: Metrodata Ltd MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook Express 5.00.2919.6600 X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2919.6600 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit Hi Everyone, This looks like a very pertinent workshop for people on this list. I noticed on the website that Pre-Registration is now closed and that we can turn up at Goddard Space Center and register on the day. To make this easier you can fill out the Fax Form on the website and take it along. I copied the link here http://www.westoverconferences.com/nasa/SpaceInternetPDF.pdf Its a shame that it is so close in time. Will there be another? Regards Mike mike.holdsworth@metrodata.co.uk Satellite Product Manager Satellite, Microwave, DSL, Leased Line Solutions From: "Shirley Tseng" To: Sent: Tuesday, November 07, 2000 12:04 Subject: Space Internet Workshop Nov 13-15, 2000 The First Joint Space Internet Workshop NASA Goddard Space Flight Center Greenbelt, Maryland November 13 - 16, 2000 http://siw.gsfc.nasa.gov/ The workshop is free of charge. This should make it simpler and easier for everyone, including civil servants, to attend. Pre-registration via the workshop web site (http://siw.gsfc.nasa.gov) is highly encouraged. Note that, as stated in the workshop announcement (which is accessible on the web site), participants are responsible for their own travel and living accommodations. SCOPE The Science, Engineering, and Standards communities are pleased to announce the first of a series of Space Internet Workshops. This series will address all issues related to Internet or Internet-like communication protocols in space environments. The vision is to bring together and integrate the Internet, the Consultative Committee for Space Data Systems, and any other applicable protocol suites, to enable transparent end-to-end Internet (or future Internet) communications to space missions resources. Communications within and between the various space environments are included. The purpose of this first workshop is to foster broadly based, comprehensive discussion of cost-effective technical solutions for the design and engineering of mission communications. The goal is to develop an understanding of the technical "territory" and to plan for working the issues in future workshops. The first workshop seeks to bring forth results and information that will help to: 1. Describe the science drivers and requirements with respect to communications and information exchange 2. Define and characterize the different communication domains for space applications 3. Identify and explore the currently available and proposed technical approaches 4. Map the technical approaches onto the operational domains 5. Identify areas where solutions do exist and areas where further study, analysis, or development is needed All types of missions * robotic and manned missions * scientific, military, and commercial spacecraft * constellations, formation-flying missions, and single nodes * nano- and micro-, and macro-satellites * relay satellites * buoys, balloons, and aircraft * planetary rovers and "space" environments, for example: * Local or Wired * In Situ * Severely Resource Constrained * Nearby * Circum-planetary * Deep Space are of interest. Issues and solutions related to space and ground systems and operations as well as mission design and implementation will be under consideration. Draft Agenda >--------------------------------------------------------------------------- -- > > -------- DRAFT -------- > > Monday Tuesday Wednesday > 13 November 14 November 15 November > ------------------------------------------------------------------------ --- > | 8:00 | | | | > | 8:30 | Register | | | > | 9:00 | Welcome | Invited - Space | Invited - Earth | > | 9:10 | Keynote - Fred Baker| | Ed Torres-Martinez | > | 9:40 | | Security - 20 | Protocols - 11 | > | 10:00 | Panel / Discussion | Security - 8 | Protocols - 1 | > | 10:20 | Applications in | Security - 9 | Protocols - 24 | > | 10:40 | Space Missions | Break / Discussion | Protocols - 31 | > | 11:00 | | Protocols - 21 | Break / Discussion | > | 11:20 | - Kul Bhasin - | Protocols - 5 | Architecture - 13 | > | 11:40 | | Protocols - 12 | Architecture - 35 | > | 12:00 | Lunch / Discussion | Lunch / Discussion | Lunch / Discussion | > | 12:20 | ... | ... | ... | > | 12:40 | ... | ... | ... | > | 1:00 | Experiments - 3 | Experiments - 28 | Experiments - 17 | > | 1:20 | Experiments - 23 | Experiments - 15 | Experiments - 26 | > | 1:40 | Experiments - 27 | Experiments - 33 | Experiments - 16 | > | 2:00 | Experiments - 7 | Experiments - 4 | Experiments - 32 | > | 2:20 | Break / Discussion | Break / Discussion | Break / Discussion | > | 2:40 | Operations - 10 | Operations - 22 | Panel / Discussion | > | 3:00 | Operations - 29 | Operations - 38 | State of Network | > | 3:20 | Operations - 25 | Operations - 37 | in Space Missions | > | 3:40 | Break / Discussion | Operations - 34 | (Protocols & | > | 4:00 | Architecture - 2 | Break / Discussion | Security) | > | 4:20 | Architecture - 30 | Architecture - 14 | | > | 4:40 | Architecture - 6 | Architecture - 19 | Wrap up | > | 5:00 | Architecture - 36 | Architecture - 18 | | > | 5:20 | Discussion | Discussion | | > | 5:40 | | | | > | 6:00 | | | | > ------------------------------------------------------------------------ --- > > > >--------------------------------------------------------------------------- --- > > 1 Protocols - > A New Multicast Routing Scheme for IP-Based LEO Satellite Networks > Ian F. Akyildiz Georgia Tech > Eylem Ekici Georgia Tech > Michael D. Bender Department of Defense > > > 2 Architecture - > Payload IP Networking With The Improved Space Architecture Concept > Dr. Carl J. Beckmann Sanders > Michael Harris Sanders > > 3 Experiments - > Internet communications for planetary exploration. > Stephen Braham Simon Fraser University > Peter Anderson Simon Fraser University > Richard Alena NASA Ames Research Center > Brian Glass NASA Ames Research Center > Pascal Lee SETI/NASA Ames Research Center > > > 4 Experiments - > High Rate TCP Communication over Geo-Stationary Distances > David Brooks Infinite Global Infrastructures > Arun Welch Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Scott Jakl Lockheed Martin Space Operations > > 5 Protocols - > Transport Protocols and Applications for Internet Use in Space > Ed Criscuolo Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > > > 6 Architecture - > File Management In Space > Anna R. Critchfield Computer Sciences Corp > Robert H. Zepp Computer Sciences Corp > > > 7 Experiments - > A Testbed for Internet Based Operations > James Cutler Stanford > Bob Twiggs Stanford > > > 8 Security - > IP Security Study for Space Applications > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > > 9 Security - > Endpoint Security Using Biometric Authentication for Secure Remote > Mission Operations > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > >10 Operations - > CHIPSat, 1st NASA UnEx Mission: Satellite Communications Via the Internet > Jason Gracilieri SpaceDev > Simon Dawson SpaceDev > Will Marchant UC Berkeley > Jonathan Wolff SpaceDev > > >11 Protocols - > Link and Routing Issues for Internet Protocols in Space > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > > >12 Protocols - > Using a Generic XML Driven Translator for Downlink and Uplink Data > Paula Holmes Motorola > >13 Architecture - > 3G - Wireless Solution > Paula Holmes Motorola > >14 Architecture - > The Potential for Using LEO Telecommunications Constellations to Support > Nanosatellite Formation Flying > Stephen Horan New Mexico State University > > >15 Experiments - > Integrating & Applying Internet Protocols with a Reconfigurable Software > Radio--The Low Power Transceiver > William Horne ITT Industries > David J. Zillig NASA Goddard 567 > Marc Harlacher ITT Industries > > >16 Experiments - > The NASA Space Network Demand Access System: A Building Block Toward the > Space Internet > William Horne ITT Industries > David J. Zillig NASA/GSFC Code 567 > > >17 Experiments - > TDRSS' History as an Internet Service Provider > Dave Israel NASA/GSFC Code 567.3 > > >18 Architecture - > The Ground Station Router Interface Device (GRID) > Dave Israel NASA/GSFC Code 567.3 > > >19 Architecture - > An IP Ground Station Architecture > Dave Israel NASA/GSFC Code 567.3 > >20 Security - > A Basis for Security Utilizing the Internet Protocol for Command and > Telemetry of Spacecrafts > Freemon Johnson III NASA/GSFC Code 584 > James Rash NASA/GSFC Code 588 > > >21 Protocols - > Intersatellite Links: Lower Layer Protocols for Autonomous Constellations > Kerri Kusza Princeton Satellite Systems > Mike Paluszek Princeton Satellite Systems > > >22 Operations - > Operations Concepts Enabled by Cooperating Internet Spacecraft > Jim Langston Computer Sciences Corp > > >23 Experiments - > Use of the Internet to expedite early integration on CHIPSat > Will Marchant UC Berkeley > Simon Dawson SpaceDev > Jason Gracilieri SpaceDev > Jonathan Wolff SpaceDev > > >24 Protocols - > TCP-Peach: A New Flow Control Scheme for Satellite IP networks. > Giacomo Morabito Georgia Tech > Ian F. Akyildiz Georgia Tech > Sergio Palazzo Georgia Tech > >25 Operations - > "Faster, Better, Cheaper" - Benefits of Internet Protocols in Space > Ron Parise Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > > >26 Experiments - > Demonstrations of Internet Protocols in Space Using TDRSS > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > Frank Hallahan Computer Sciences Corp > Thinh Le Computer Sciences Corp > > >27 Experiments - > Results of "Internet in Space" Tests Using the UoSAT-12 Satellite > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > Chris Jackson Surrey Satellite Technology Ltd > Harold Price VyTek Wireless > > >28 Experiments - > A Study of TCP Mechanisms for Distinguishing Losses Due to Errors vs. > Losses Due to Congestion > Gregory Romaniak Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Michael Rupar US Naval Research Laboratory > Mark Solsman US Naval Research Laboratory > >29 Operations - > Operations Concepts for the Mars Relay Satellite > Tim Rykowski NASA/GSFC Code 581 > Dave Israel NASA/GSFC Code 567.3 > >30 Architecture - > Flight system architectures using Internet Protocol methods > Richard G Schnurr NASA/GSFC Code 560 > >31 Protocols - > On board flight network development activity at NASA GSFC > Richard G Schnurr NASA/GSFC Code 560 > Glenn Rakow NASA/GSFC Code 561 > Evan Webb NASA/GSFC Code 561 > > >32 Experiments - > Mobile-Router > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >33 Experiments - > Deployment Tests of COTS Networking Equipment in STS and ISS > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >34 Operations - > SOMO Commercialization and the Space Internet > Jon M. Smith NASA/JSC > Dan Heimingdinger > > >35 Architecture - > Crosslink Transceiver for Integrated Navigation and Communications in > Distributed Spacecraft Systems > Patrick A. Stadter JHU/APL > > >36 Architecture - > Flight Linux: Enabling Migration of the Internet to Space-Based Systems > Pat Stakem QSS Group, Inc. > >37 Operations - > DoD Satellite Control Directions > Carl A Sunshine Aerospace > > >38 Operations - > An Operations Concept for Internet-based Satellite Instruments > G. Michael Tong NASA/GSFC Code 583 James L. Rash/Code 588 Building 23, Room E403 Advanced Architectures and Automation Branch NASA Goddard Space Flight Center Greenbelt, MD 20771 301-286-5246 (voice) 301-286-1768 (fax) From owner-tcpsat@lerc.nasa.gov Tue Nov 7 13:34:17 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 SMTP id NAA14028; Tue, 7 Nov 2000 13:34:16 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA29481 for tcpsat-outgoing; Tue, 7 Nov 2000 12:52:19 -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 SMTP id MAA29438 for ; Tue, 7 Nov 2000 12:52:17 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id MAA06528; Tue, 7 Nov 2000 12:52:16 -0500 Received: from harrier.prod.itd.earthlink.net(207.217.121.12) by seraph3.lerc.nasa.gov via smap (V5.5) id xma006451; Tue, 7 Nov 00 12:51:23 -0500 Received: from vaio (hsa078.pool012.at101.earthlink.net [216.249.83.78]) by harrier.prod.itd.earthlink.net (EL-8_9_3_3/8.9.3) with SMTP id JAA18479; Tue, 7 Nov 2000 09:51:17 -0800 (PST) From: "Shirley Tseng" To: "Mike Holdsworth" , Subject: RE: Space Internet Workshop Nov 13-15, 2000 Date: Tue, 7 Nov 2000 09:53:49 -0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: <015b01c048de$3073aa00$8dfe72c1@metrodata.co.uk> X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit There will be other workshops. This is the first of a series, so if you would like to propose future topics and panels or would like to speak at future events, please send them to Michael E. Van Steenberg, Chair Organizing Committee Michael.E.VanSteenberg@gsfc.nasa.gov Astrophysics Data Facility, code 631 NASA Goddard Space Flight Center Greenbelt, MD 20771 Shirley Tseng Infinite Global Infrastructures www.igigllc.com -----Original Message----- From: Mike Holdsworth [mailto:mike.holdsworth@metrodata.co.uk] Sent: Tuesday, November 07, 2000 9:14 AM To: Shirley Tseng; tcpsat@grc.nasa.gov Subject: Re: Space Internet Workshop Nov 13-15, 2000 Hi Everyone, This looks like a very pertinent workshop for people on this list. I noticed on the website that Pre-Registration is now closed and that we can turn up at Goddard Space Center and register on the day. To make this easier you can fill out the Fax Form on the website and take it along. I copied the link here http://www.westoverconferences.com/nasa/SpaceInternetPDF.pdf Its a shame that it is so close in time. Will there be another? Regards Mike mike.holdsworth@metrodata.co.uk Satellite Product Manager Satellite, Microwave, DSL, Leased Line Solutions From: "Shirley Tseng" To: Sent: Tuesday, November 07, 2000 12:04 Subject: Space Internet Workshop Nov 13-15, 2000 The First Joint Space Internet Workshop NASA Goddard Space Flight Center Greenbelt, Maryland November 13 - 16, 2000 http://siw.gsfc.nasa.gov/ The workshop is free of charge. This should make it simpler and easier for everyone, including civil servants, to attend. Pre-registration via the workshop web site (http://siw.gsfc.nasa.gov) is highly encouraged. Note that, as stated in the workshop announcement (which is accessible on the web site), participants are responsible for their own travel and living accommodations. SCOPE The Science, Engineering, and Standards communities are pleased to announce the first of a series of Space Internet Workshops. This series will address all issues related to Internet or Internet-like communication protocols in space environments. The vision is to bring together and integrate the Internet, the Consultative Committee for Space Data Systems, and any other applicable protocol suites, to enable transparent end-to-end Internet (or future Internet) communications to space missions resources. Communications within and between the various space environments are included. The purpose of this first workshop is to foster broadly based, comprehensive discussion of cost-effective technical solutions for the design and engineering of mission communications. The goal is to develop an understanding of the technical "territory" and to plan for working the issues in future workshops. The first workshop seeks to bring forth results and information that will help to: 1. Describe the science drivers and requirements with respect to communications and information exchange 2. Define and characterize the different communication domains for space applications 3. Identify and explore the currently available and proposed technical approaches 4. Map the technical approaches onto the operational domains 5. Identify areas where solutions do exist and areas where further study, analysis, or development is needed All types of missions * robotic and manned missions * scientific, military, and commercial spacecraft * constellations, formation-flying missions, and single nodes * nano- and micro-, and macro-satellites * relay satellites * buoys, balloons, and aircraft * planetary rovers and "space" environments, for example: * Local or Wired * In Situ * Severely Resource Constrained * Nearby * Circum-planetary * Deep Space are of interest. Issues and solutions related to space and ground systems and operations as well as mission design and implementation will be under consideration. Draft Agenda >--------------------------------------------------------------------------- -- > > -------- DRAFT -------- > > Monday Tuesday Wednesday > 13 November 14 November 15 November > ------------------------------------------------------------------------ --- > | 8:00 | | | | > | 8:30 | Register | | | > | 9:00 | Welcome | Invited - Space | Invited - Earth | > | 9:10 | Keynote - Fred Baker| | Ed Torres-Martinez | > | 9:40 | | Security - 20 | Protocols - 11 | > | 10:00 | Panel / Discussion | Security - 8 | Protocols - 1 | > | 10:20 | Applications in | Security - 9 | Protocols - 24 | > | 10:40 | Space Missions | Break / Discussion | Protocols - 31 | > | 11:00 | | Protocols - 21 | Break / Discussion | > | 11:20 | - Kul Bhasin - | Protocols - 5 | Architecture - 13 | > | 11:40 | | Protocols - 12 | Architecture - 35 | > | 12:00 | Lunch / Discussion | Lunch / Discussion | Lunch / Discussion | > | 12:20 | ... | ... | ... | > | 12:40 | ... | ... | ... | > | 1:00 | Experiments - 3 | Experiments - 28 | Experiments - 17 | > | 1:20 | Experiments - 23 | Experiments - 15 | Experiments - 26 | > | 1:40 | Experiments - 27 | Experiments - 33 | Experiments - 16 | > | 2:00 | Experiments - 7 | Experiments - 4 | Experiments - 32 | > | 2:20 | Break / Discussion | Break / Discussion | Break / Discussion | > | 2:40 | Operations - 10 | Operations - 22 | Panel / Discussion | > | 3:00 | Operations - 29 | Operations - 38 | State of Network | > | 3:20 | Operations - 25 | Operations - 37 | in Space Missions | > | 3:40 | Break / Discussion | Operations - 34 | (Protocols & | > | 4:00 | Architecture - 2 | Break / Discussion | Security) | > | 4:20 | Architecture - 30 | Architecture - 14 | | > | 4:40 | Architecture - 6 | Architecture - 19 | Wrap up | > | 5:00 | Architecture - 36 | Architecture - 18 | | > | 5:20 | Discussion | Discussion | | > | 5:40 | | | | > | 6:00 | | | | > ------------------------------------------------------------------------ --- > > > >--------------------------------------------------------------------------- --- > > 1 Protocols - > A New Multicast Routing Scheme for IP-Based LEO Satellite Networks > Ian F. Akyildiz Georgia Tech > Eylem Ekici Georgia Tech > Michael D. Bender Department of Defense > > > 2 Architecture - > Payload IP Networking With The Improved Space Architecture Concept > Dr. Carl J. Beckmann Sanders > Michael Harris Sanders > > 3 Experiments - > Internet communications for planetary exploration. > Stephen Braham Simon Fraser University > Peter Anderson Simon Fraser University > Richard Alena NASA Ames Research Center > Brian Glass NASA Ames Research Center > Pascal Lee SETI/NASA Ames Research Center > > > 4 Experiments - > High Rate TCP Communication over Geo-Stationary Distances > David Brooks Infinite Global Infrastructures > Arun Welch Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Scott Jakl Lockheed Martin Space Operations > > 5 Protocols - > Transport Protocols and Applications for Internet Use in Space > Ed Criscuolo Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > > > 6 Architecture - > File Management In Space > Anna R. Critchfield Computer Sciences Corp > Robert H. Zepp Computer Sciences Corp > > > 7 Experiments - > A Testbed for Internet Based Operations > James Cutler Stanford > Bob Twiggs Stanford > > > 8 Security - > IP Security Study for Space Applications > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > > 9 Security - > Endpoint Security Using Biometric Authentication for Secure Remote > Mission Operations > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > >10 Operations - > CHIPSat, 1st NASA UnEx Mission: Satellite Communications Via the Internet > Jason Gracilieri SpaceDev > Simon Dawson SpaceDev > Will Marchant UC Berkeley > Jonathan Wolff SpaceDev > > >11 Protocols - > Link and Routing Issues for Internet Protocols in Space > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > > >12 Protocols - > Using a Generic XML Driven Translator for Downlink and Uplink Data > Paula Holmes Motorola > >13 Architecture - > 3G - Wireless Solution > Paula Holmes Motorola > >14 Architecture - > The Potential for Using LEO Telecommunications Constellations to Support > Nanosatellite Formation Flying > Stephen Horan New Mexico State University > > >15 Experiments - > Integrating & Applying Internet Protocols with a Reconfigurable Software > Radio--The Low Power Transceiver > William Horne ITT Industries > David J. Zillig NASA Goddard 567 > Marc Harlacher ITT Industries > > >16 Experiments - > The NASA Space Network Demand Access System: A Building Block Toward the > Space Internet > William Horne ITT Industries > David J. Zillig NASA/GSFC Code 567 > > >17 Experiments - > TDRSS' History as an Internet Service Provider > Dave Israel NASA/GSFC Code 567.3 > > >18 Architecture - > The Ground Station Router Interface Device (GRID) > Dave Israel NASA/GSFC Code 567.3 > > >19 Architecture - > An IP Ground Station Architecture > Dave Israel NASA/GSFC Code 567.3 > >20 Security - > A Basis for Security Utilizing the Internet Protocol for Command and > Telemetry of Spacecrafts > Freemon Johnson III NASA/GSFC Code 584 > James Rash NASA/GSFC Code 588 > > >21 Protocols - > Intersatellite Links: Lower Layer Protocols for Autonomous Constellations > Kerri Kusza Princeton Satellite Systems > Mike Paluszek Princeton Satellite Systems > > >22 Operations - > Operations Concepts Enabled by Cooperating Internet Spacecraft > Jim Langston Computer Sciences Corp > > >23 Experiments - > Use of the Internet to expedite early integration on CHIPSat > Will Marchant UC Berkeley > Simon Dawson SpaceDev > Jason Gracilieri SpaceDev > Jonathan Wolff SpaceDev > > >24 Protocols - > TCP-Peach: A New Flow Control Scheme for Satellite IP networks. > Giacomo Morabito Georgia Tech > Ian F. Akyildiz Georgia Tech > Sergio Palazzo Georgia Tech > >25 Operations - > "Faster, Better, Cheaper" - Benefits of Internet Protocols in Space > Ron Parise Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > > >26 Experiments - > Demonstrations of Internet Protocols in Space Using TDRSS > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > Frank Hallahan Computer Sciences Corp > Thinh Le Computer Sciences Corp > > >27 Experiments - > Results of "Internet in Space" Tests Using the UoSAT-12 Satellite > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > Chris Jackson Surrey Satellite Technology Ltd > Harold Price VyTek Wireless > > >28 Experiments - > A Study of TCP Mechanisms for Distinguishing Losses Due to Errors vs. > Losses Due to Congestion > Gregory Romaniak Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Michael Rupar US Naval Research Laboratory > Mark Solsman US Naval Research Laboratory > >29 Operations - > Operations Concepts for the Mars Relay Satellite > Tim Rykowski NASA/GSFC Code 581 > Dave Israel NASA/GSFC Code 567.3 > >30 Architecture - > Flight system architectures using Internet Protocol methods > Richard G Schnurr NASA/GSFC Code 560 > >31 Protocols - > On board flight network development activity at NASA GSFC > Richard G Schnurr NASA/GSFC Code 560 > Glenn Rakow NASA/GSFC Code 561 > Evan Webb NASA/GSFC Code 561 > > >32 Experiments - > Mobile-Router > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >33 Experiments - > Deployment Tests of COTS Networking Equipment in STS and ISS > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >34 Operations - > SOMO Commercialization and the Space Internet > Jon M. Smith NASA/JSC > Dan Heimingdinger > > >35 Architecture - > Crosslink Transceiver for Integrated Navigation and Communications in > Distributed Spacecraft Systems > Patrick A. Stadter JHU/APL > > >36 Architecture - > Flight Linux: Enabling Migration of the Internet to Space-Based Systems > Pat Stakem QSS Group, Inc. > >37 Operations - > DoD Satellite Control Directions > Carl A Sunshine Aerospace > > >38 Operations - > An Operations Concept for Internet-based Satellite Instruments > G. Michael Tong NASA/GSFC Code 583 James L. Rash/Code 588 Building 23, Room E403 Advanced Architectures and Automation Branch NASA Goddard Space Flight Center Greenbelt, MD 20771 301-286-5246 (voice) 301-286-1768 (fax) From owner-tcpsat@lerc.nasa.gov Tue Nov 7 14:30:09 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 SMTP id OAA29664; Tue, 7 Nov 2000 14:30:07 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id NAA07565 for tcpsat-outgoing; Tue, 7 Nov 2000 13:36:51 -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 SMTP id NAA07515 for ; Tue, 7 Nov 2000 13:36:47 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id NAA13122; Tue, 7 Nov 2000 13:36:46 -0500 Received: from harrier.prod.itd.earthlink.net(207.217.121.12) by seraph3.lerc.nasa.gov via smap (V5.5) id xma013080; Tue, 7 Nov 00 13:36:44 -0500 Received: from vaio (hsa078.pool012.at101.earthlink.net [216.249.83.78]) by harrier.prod.itd.earthlink.net (EL-8_9_3_3/8.9.3) with SMTP id KAA21818 for ; Tue, 7 Nov 2000 10:36:37 -0800 (PST) From: "Shirley Tseng" To: Subject: RE: Space Internet Workshop Nov 13-15, 2000 Date: Tue, 7 Nov 2000 10:39:08 -0800 Message-ID: MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook IMO, Build 9.0.2416 (9.0.2910.0) Importance: Normal In-Reply-To: X-MimeOLE: Produced By Microsoft MimeOLE V5.00.2615.200 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit For those unable to attend this workshop, abstracts and POC information are at http://siw.gsfc.nasa.gov/SIW_Abstracts/collected.abstracts.html Presentation charts will be collected for posting at the web site in the future... Shirley -----Original Message----- From: Shirley Tseng [mailto:shirleytseng@earthlink.net] Sent: Tuesday, November 07, 2000 9:54 AM To: Mike Holdsworth; tcpsat@grc.nasa.gov Subject: RE: Space Internet Workshop Nov 13-15, 2000 There will be other workshops. This is the first of a series, so if you would like to propose future topics and panels or would like to speak at future events, please send them to Michael E. Van Steenberg, Chair Organizing Committee Michael.E.VanSteenberg@gsfc.nasa.gov Astrophysics Data Facility, code 631 NASA Goddard Space Flight Center Greenbelt, MD 20771 Shirley Tseng Infinite Global Infrastructures www.igigllc.com -----Original Message----- From: Mike Holdsworth [mailto:mike.holdsworth@metrodata.co.uk] Sent: Tuesday, November 07, 2000 9:14 AM To: Shirley Tseng; tcpsat@grc.nasa.gov Subject: Re: Space Internet Workshop Nov 13-15, 2000 Hi Everyone, This looks like a very pertinent workshop for people on this list. I noticed on the website that Pre-Registration is now closed and that we can turn up at Goddard Space Center and register on the day. To make this easier you can fill out the Fax Form on the website and take it along. I copied the link here http://www.westoverconferences.com/nasa/SpaceInternetPDF.pdf Its a shame that it is so close in time. Will there be another? Regards Mike mike.holdsworth@metrodata.co.uk Satellite Product Manager Satellite, Microwave, DSL, Leased Line Solutions From: "Shirley Tseng" To: Sent: Tuesday, November 07, 2000 12:04 Subject: Space Internet Workshop Nov 13-15, 2000 The First Joint Space Internet Workshop NASA Goddard Space Flight Center Greenbelt, Maryland November 13 - 16, 2000 http://siw.gsfc.nasa.gov/ The workshop is free of charge. This should make it simpler and easier for everyone, including civil servants, to attend. Pre-registration via the workshop web site (http://siw.gsfc.nasa.gov) is highly encouraged. Note that, as stated in the workshop announcement (which is accessible on the web site), participants are responsible for their own travel and living accommodations. SCOPE The Science, Engineering, and Standards communities are pleased to announce the first of a series of Space Internet Workshops. This series will address all issues related to Internet or Internet-like communication protocols in space environments. The vision is to bring together and integrate the Internet, the Consultative Committee for Space Data Systems, and any other applicable protocol suites, to enable transparent end-to-end Internet (or future Internet) communications to space missions resources. Communications within and between the various space environments are included. The purpose of this first workshop is to foster broadly based, comprehensive discussion of cost-effective technical solutions for the design and engineering of mission communications. The goal is to develop an understanding of the technical "territory" and to plan for working the issues in future workshops. The first workshop seeks to bring forth results and information that will help to: 1. Describe the science drivers and requirements with respect to communications and information exchange 2. Define and characterize the different communication domains for space applications 3. Identify and explore the currently available and proposed technical approaches 4. Map the technical approaches onto the operational domains 5. Identify areas where solutions do exist and areas where further study, analysis, or development is needed All types of missions * robotic and manned missions * scientific, military, and commercial spacecraft * constellations, formation-flying missions, and single nodes * nano- and micro-, and macro-satellites * relay satellites * buoys, balloons, and aircraft * planetary rovers and "space" environments, for example: * Local or Wired * In Situ * Severely Resource Constrained * Nearby * Circum-planetary * Deep Space are of interest. Issues and solutions related to space and ground systems and operations as well as mission design and implementation will be under consideration. Draft Agenda >--------------------------------------------------------------------------- -- > > -------- DRAFT -------- > > Monday Tuesday Wednesday > 13 November 14 November 15 November > ------------------------------------------------------------------------ --- > | 8:00 | | | | > | 8:30 | Register | | | > | 9:00 | Welcome | Invited - Space | Invited - Earth | > | 9:10 | Keynote - Fred Baker| | Ed Torres-Martinez | > | 9:40 | | Security - 20 | Protocols - 11 | > | 10:00 | Panel / Discussion | Security - 8 | Protocols - 1 | > | 10:20 | Applications in | Security - 9 | Protocols - 24 | > | 10:40 | Space Missions | Break / Discussion | Protocols - 31 | > | 11:00 | | Protocols - 21 | Break / Discussion | > | 11:20 | - Kul Bhasin - | Protocols - 5 | Architecture - 13 | > | 11:40 | | Protocols - 12 | Architecture - 35 | > | 12:00 | Lunch / Discussion | Lunch / Discussion | Lunch / Discussion | > | 12:20 | ... | ... | ... | > | 12:40 | ... | ... | ... | > | 1:00 | Experiments - 3 | Experiments - 28 | Experiments - 17 | > | 1:20 | Experiments - 23 | Experiments - 15 | Experiments - 26 | > | 1:40 | Experiments - 27 | Experiments - 33 | Experiments - 16 | > | 2:00 | Experiments - 7 | Experiments - 4 | Experiments - 32 | > | 2:20 | Break / Discussion | Break / Discussion | Break / Discussion | > | 2:40 | Operations - 10 | Operations - 22 | Panel / Discussion | > | 3:00 | Operations - 29 | Operations - 38 | State of Network | > | 3:20 | Operations - 25 | Operations - 37 | in Space Missions | > | 3:40 | Break / Discussion | Operations - 34 | (Protocols & | > | 4:00 | Architecture - 2 | Break / Discussion | Security) | > | 4:20 | Architecture - 30 | Architecture - 14 | | > | 4:40 | Architecture - 6 | Architecture - 19 | Wrap up | > | 5:00 | Architecture - 36 | Architecture - 18 | | > | 5:20 | Discussion | Discussion | | > | 5:40 | | | | > | 6:00 | | | | > ------------------------------------------------------------------------ --- > > > >--------------------------------------------------------------------------- --- > > 1 Protocols - > A New Multicast Routing Scheme for IP-Based LEO Satellite Networks > Ian F. Akyildiz Georgia Tech > Eylem Ekici Georgia Tech > Michael D. Bender Department of Defense > > > 2 Architecture - > Payload IP Networking With The Improved Space Architecture Concept > Dr. Carl J. Beckmann Sanders > Michael Harris Sanders > > 3 Experiments - > Internet communications for planetary exploration. > Stephen Braham Simon Fraser University > Peter Anderson Simon Fraser University > Richard Alena NASA Ames Research Center > Brian Glass NASA Ames Research Center > Pascal Lee SETI/NASA Ames Research Center > > > 4 Experiments - > High Rate TCP Communication over Geo-Stationary Distances > David Brooks Infinite Global Infrastructures > Arun Welch Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Scott Jakl Lockheed Martin Space Operations > > 5 Protocols - > Transport Protocols and Applications for Internet Use in Space > Ed Criscuolo Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > > > 6 Architecture - > File Management In Space > Anna R. Critchfield Computer Sciences Corp > Robert H. Zepp Computer Sciences Corp > > > 7 Experiments - > A Testbed for Internet Based Operations > James Cutler Stanford > Bob Twiggs Stanford > > > 8 Security - > IP Security Study for Space Applications > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > > 9 Security - > Endpoint Security Using Biometric Authentication for Secure Remote > Mission Operations > John T. Donohue, NASA/GSFC Code 584 > Anna R. Critchfield Computer Sciences Corp > > >10 Operations - > CHIPSat, 1st NASA UnEx Mission: Satellite Communications Via the Internet > Jason Gracilieri SpaceDev > Simon Dawson SpaceDev > Will Marchant UC Berkeley > Jonathan Wolff SpaceDev > > >11 Protocols - > Link and Routing Issues for Internet Protocols in Space > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > > >12 Protocols - > Using a Generic XML Driven Translator for Downlink and Uplink Data > Paula Holmes Motorola > >13 Architecture - > 3G - Wireless Solution > Paula Holmes Motorola > >14 Architecture - > The Potential for Using LEO Telecommunications Constellations to Support > Nanosatellite Formation Flying > Stephen Horan New Mexico State University > > >15 Experiments - > Integrating & Applying Internet Protocols with a Reconfigurable Software > Radio--The Low Power Transceiver > William Horne ITT Industries > David J. Zillig NASA Goddard 567 > Marc Harlacher ITT Industries > > >16 Experiments - > The NASA Space Network Demand Access System: A Building Block Toward the > Space Internet > William Horne ITT Industries > David J. Zillig NASA/GSFC Code 567 > > >17 Experiments - > TDRSS' History as an Internet Service Provider > Dave Israel NASA/GSFC Code 567.3 > > >18 Architecture - > The Ground Station Router Interface Device (GRID) > Dave Israel NASA/GSFC Code 567.3 > > >19 Architecture - > An IP Ground Station Architecture > Dave Israel NASA/GSFC Code 567.3 > >20 Security - > A Basis for Security Utilizing the Internet Protocol for Command and > Telemetry of Spacecrafts > Freemon Johnson III NASA/GSFC Code 584 > James Rash NASA/GSFC Code 588 > > >21 Protocols - > Intersatellite Links: Lower Layer Protocols for Autonomous Constellations > Kerri Kusza Princeton Satellite Systems > Mike Paluszek Princeton Satellite Systems > > >22 Operations - > Operations Concepts Enabled by Cooperating Internet Spacecraft > Jim Langston Computer Sciences Corp > > >23 Experiments - > Use of the Internet to expedite early integration on CHIPSat > Will Marchant UC Berkeley > Simon Dawson SpaceDev > Jason Gracilieri SpaceDev > Jonathan Wolff SpaceDev > > >24 Protocols - > TCP-Peach: A New Flow Control Scheme for Satellite IP networks. > Giacomo Morabito Georgia Tech > Ian F. Akyildiz Georgia Tech > Sergio Palazzo Georgia Tech > >25 Operations - > "Faster, Better, Cheaper" - Benefits of Internet Protocols in Space > Ron Parise Computer Sciences Corp > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > > >26 Experiments - > Demonstrations of Internet Protocols in Space Using TDRSS > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Ron Parise Computer Sciences Corp > Frank Hallahan Computer Sciences Corp > Thinh Le Computer Sciences Corp > > >27 Experiments - > Results of "Internet in Space" Tests Using the UoSAT-12 Satellite > James Rash NASA/GSFC Code 588 > Keith Hogie Computer Sciences Corp > Ron Parise Computer Sciences Corp > Ed Criscuolo Computer Sciences Corp > Jim Langston Computer Sciences Corp > Chris Jackson Surrey Satellite Technology Ltd > Harold Price VyTek Wireless > > >28 Experiments - > A Study of TCP Mechanisms for Distinguishing Losses Due to Errors vs. > Losses Due to Congestion > Gregory Romaniak Infinite Global Infrastructures > David Beering Infinite Global Infrastructures > Michael Rupar US Naval Research Laboratory > Mark Solsman US Naval Research Laboratory > >29 Operations - > Operations Concepts for the Mars Relay Satellite > Tim Rykowski NASA/GSFC Code 581 > Dave Israel NASA/GSFC Code 567.3 > >30 Architecture - > Flight system architectures using Internet Protocol methods > Richard G Schnurr NASA/GSFC Code 560 > >31 Protocols - > On board flight network development activity at NASA GSFC > Richard G Schnurr NASA/GSFC Code 560 > Glenn Rakow NASA/GSFC Code 561 > Evan Webb NASA/GSFC Code 561 > > >32 Experiments - > Mobile-Router > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >33 Experiments - > Deployment Tests of COTS Networking Equipment in STS and ISS > Dan Shell Cisco System > Will Ivancic NASA Glenn Research Center > > >34 Operations - > SOMO Commercialization and the Space Internet > Jon M. Smith NASA/JSC > Dan Heimingdinger > > >35 Architecture - > Crosslink Transceiver for Integrated Navigation and Communications in > Distributed Spacecraft Systems > Patrick A. Stadter JHU/APL > > >36 Architecture - > Flight Linux: Enabling Migration of the Internet to Space-Based Systems > Pat Stakem QSS Group, Inc. > >37 Operations - > DoD Satellite Control Directions > Carl A Sunshine Aerospace > > >38 Operations - > An Operations Concept for Internet-based Satellite Instruments > G. Michael Tong NASA/GSFC Code 583 James L. Rash/Code 588 Building 23, Room E403 Advanced Architectures and Automation Branch NASA Goddard Space Flight Center Greenbelt, MD 20771 301-286-5246 (voice) 301-286-1768 (fax) From owner-tcpsat@lerc.nasa.gov Wed Nov 15 11:38:35 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 SMTP id LAA07337; Wed, 15 Nov 2000 11:38:35 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id KAA08234 for tcpsat-outgoing; Wed, 15 Nov 2000 10:40:15 -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 SMTP id KAA08210 for ; Wed, 15 Nov 2000 10:40:13 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id KAA03484; Wed, 15 Nov 2000 10:40:13 -0500 Received: from mail.kingston-tli.co.uk(193.115.135.146) by seraph3.lerc.nasa.gov via smap (V5.5) id xma003332; Wed, 15 Nov 00 10:39:11 -0500 Received: from mail.kingston-tli.co.uk (unverified) by mail.kingston-tli.com (Content Technologies SMTPRS 4.1.5) with ESMTP id ; Wed, 15 Nov 2000 15:38:53 +0000 Received: by KTLINT1 with Internet Mail Service (5.5.2448.0) id ; Wed, 15 Nov 2000 15:38:53 -0000 Message-ID: <429ACF5B9704D3118D390008C7E9C2ECEF7A4A@KTLINT1> From: Matthew Halsey To: "'isp-satellites@isp-satellites.com'" , "'tcpsat@grc.nasa.gov'" Subject: how is hybrid ISP routing done Date: Wed, 15 Nov 2000 15:38:48 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2448.0) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk I have been trying to figure out exactly how hybrid satellite ISP routing is actually done? If a user has a terrestrial ISP connection for making requests, how is it that the responses are routed back via a satellite uplink facility rather than back via the terrestrial ISP? I have seen it explained as IP in IP encapsulation, proxy servers or BGP routing. Can someone please explain? Thanks Matt ========================= Matthew Halsey Sales Support Manager, Internet Services Kingston MediaStream Tel : +44 (0) 1494 878608 Fax : +44 (0) 1494 874433 Mobile : +44 (0) 7879 405 880 mailto:mhalsey@kingston-mediastream.com http://www.kingston-mediastream.com ========================= ***************************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify postmaster@kingston-mediastream.com and delete the original email. ***************************************************************************** From owner-tcpsat@lerc.nasa.gov Wed Nov 15 12:41:02 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 SMTP id MAA29775; Wed, 15 Nov 2000 12:41:01 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id LAA23077 for tcpsat-outgoing; Wed, 15 Nov 2000 11:54:19 -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 SMTP id LAA23039 for ; Wed, 15 Nov 2000 11:54:17 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id LAA15310; Wed, 15 Nov 2000 11:54:16 -0500 Received: from mail.kingston-tli.co.uk(193.115.135.146) by seraph3.lerc.nasa.gov via smap (V5.5) id xma015199; Wed, 15 Nov 00 11:53:14 -0500 Received: from mail.kingston-tli.co.uk (unverified) by mail.kingston-tli.com (Content Technologies SMTPRS 4.1.5) with ESMTP id ; Wed, 15 Nov 2000 16:53:05 +0000 Received: by KTLINT1 with Internet Mail Service (5.5.2448.0) id ; Wed, 15 Nov 2000 16:53:05 -0000 Message-ID: <429ACF5B9704D3118D390008C7E9C2ECEF7A4D@KTLINT1> From: Matthew Halsey To: "'isp-satellites@isp-satellites.com'" , "'tcpsat@grc.nasa.gov'" Subject: RE: how is hybrid ISP routing done Date: Wed, 15 Nov 2000 16:53:01 -0000 MIME-Version: 1.0 X-Mailer: Internet Mail Service (5.5.2448.0) Content-Type: text/plain; charset="iso-8859-1" Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk I have been trying to figure out exactly how hybrid satellite ISP routing is actually done? If a user has a terrestrial ISP connection for making requests, how is it that the responses are routed back via a satellite uplink facility rather than back via the terrestrial ISP? I have seen it explained as IP in IP encapsulation, proxy servers or BGP routing. Can someone please explain? Thanks Matt ========================= Matthew Halsey Sales Support Manager, Internet Services Kingston MediaStream Tel : +44 (0) 1494 878608 Fax : +44 (0) 1494 874433 Mobile : +44 (0) 7879 405 880 mailto:mhalsey@kingston-mediastream.com http://www.kingston-mediastream.com ========================= ***************************************************************************** This email and any files transmitted with it are confidential and intended solely for the use of the individual or entity to whom they are addressed. If you have received this email in error please notify postmaster@kingston-mediastream.com and delete the original email. ***************************************************************************** From owner-tcpsat@lerc.nasa.gov Wed Nov 15 13:17:02 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 SMTP id NAA12703; Wed, 15 Nov 2000 13:16:59 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id MAA29297 for tcpsat-outgoing; Wed, 15 Nov 2000 12:34:37 -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 SMTP id MAA29259 for ; Wed, 15 Nov 2000 12:34:35 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id MAA21526; Wed, 15 Nov 2000 12:34:34 -0500 Received: from diesel.erg.abdn.ac.uk(139.133.204.76) by seraph3.lerc.nasa.gov via smap (V5.5) id xma021451; Wed, 15 Nov 00 12:33:50 -0500 Received: from erg.abdn.ac.uk (gresley.erg.abdn.ac.uk [139.133.207.106]) by erg.abdn.ac.uk (8.11.1/8.11.1) with ESMTP id eAFHXl701537; Wed, 15 Nov 2000 17:33:47 GMT Message-ID: <3A12C8FB.494A181@erg.abdn.ac.uk> Date: Wed, 15 Nov 2000 17:33:49 +0000 From: Dr G Fairhurst Reply-To: gorry@erg.abdn.ac.uk Organization: erg.abdn.ac.uk X-Mailer: Mozilla 4.73C-CCK-MCD {C-UDP; EBM-APPLE} (Macintosh; U; PPC) X-Accept-Language: en MIME-Version: 1.0 To: Matthew Halsey CC: "'tcpsat@grc.nasa.gov'" Subject: Re: how is hybrid ISP routing done References: <429ACF5B9704D3118D390008C7E9C2ECEF7A4A@KTLINT1> Content-Type: text/plain; charset=iso-8859-1; x-mac-type="54455854"; x-mac-creator="4D4F5353" X-MIME-Autoconverted: from 8bit to quoted-printable by erg.abdn.ac.uk id eAFHXl701537 X-MIME-Autoconverted: from quoted-printable to 8bit by lombok-fi.lerc.nasa.gov id MAA29283 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk X-MIME-Autoconverted: from 8bit to quoted-printable by lombok-fi.lerc.nasa.gov id MAA29297 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by ietf.org id NAA12703 This is asymmetric link routing. Here is a brief summary of the topic: IP assumes very little about the under-lying network and therefore may operate over v irtually any type of link. Most links provide duplex communications with the same characteristics in both directions. Asymmetry however does occur in various forms: Asymmetric capacity (forward and return links operate at different speeds, or under different loading), asymmetric loss (forward and return links exhibit different error environments), and asymmetric routing (using two different paths). A DVB Satellite link with terrestrial return introduces all three forms of asymmetry. No changes are required to the IP protocol headers for asymmetric routing. However when additional services are provided within the network and a boundary router (at the edge of a subnetwork) receives a packet from a path which is not the route to the packet’s source address, several issues may arise including: (i) If the boundary router employs ingress source address filtering (e.g. to prevent address spoofing), the packet may be filtered and discarded. (ii) If the up-stream networking nodes use a routing protocol (Unicast or multicast) routing protocol advertisement may be confused by the asymmetry. (iii) If policy-based routing or accounting is used, the packet may be assigned a wrong service class. Three approaches have been suggested to overcome these limitations: the oldest approach uses an IP source-route option, (each IP packet carries a list of addresses of routers along the path to be taken). This can expensive to implement in routers. A second approach uses IP-in-IP tunnelling (encapsulating an IP packet with another IP header, adding 20 B overhead). This approach is used in the Multicast Backbone (MBone) and to provide virtual networks. In the DVB case, a packet from a client is encapsulated with an IP header with a destination address of the tunnel end router (e.g. the hub router in figure 1). The remote router extracts the encapsulated packet and forwards it to either a local (hub) server or onwards to the Internet, as if the client was connected via a full-duplex connection terminated at the tunnel end. The tunnel end must also validate the addresses of received packets to prevent spoofing. A third approach resembles the former, but uses Generic Routing Encapsulation (GRE) which also adds an additional 8 B header between the outer and inner IP headers. This allows more sophisticated control of the tunnel and supports a range of protocols (including transparent Ethernet bridging). Both IP-in-IP and GRE allow asymmetric routing. A new problem arises, in that to establish a tunnel between two end-systems requires manual configuration of addresses (and also any multicast group membership). An automatic tunnel setup protocol is therefore highly desirable (in which the out-bound satellite link sends the appropriate information to allow all clients to configure their tunnels). Such a protocol (for bridging using GRE) is currently under development within the Internet Engineering Task Force (IETF) Uni-Directional Link Routing (UDLR) working group. BGP can be used in some cases between routers - and is more common in delivering content to ISPs rather than to corporate / home users. Gorry Fairhurst Matthew Halsey wrote: > I have been trying to figure out exactly how hybrid satellite ISP routing is > actually done? > If a user has a terrestrial ISP connection for making requests, how is it > that the responses are routed back via a satellite uplink facility rather > than back via the terrestrial ISP? > I have seen it explained as IP in IP encapsulation, proxy servers or BGP > routing. Can someone please explain? > > Thanks Matt > > ========================= > Matthew Halsey > Sales Support Manager, Internet Services > Kingston MediaStream > Tel : +44 (0) 1494 878608 > Fax : +44 (0) 1494 874433 > Mobile : +44 (0) 7879 405 880 > mailto:mhalsey@kingston-mediastream.com > http://www.kingston-mediastream.com > ========================= > > ***************************************************************************** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. If you have received this email in error please > notify postmaster@kingston-mediastream.com and delete the original email. > ***************************************************************************** -- ------------------------------ http://www.erg.abdn.ac.uk/users/gorry From owner-tcpsat@lerc.nasa.gov Wed Nov 15 17:10:05 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 SMTP id RAA18631; Wed, 15 Nov 2000 17:10:04 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id QAA09252 for tcpsat-outgoing; Wed, 15 Nov 2000 16:24:05 -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 SMTP id QAA09208 for ; Wed, 15 Nov 2000 16:24:01 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id QAA26130; Wed, 15 Nov 2000 16:24:01 -0500 Received: from sj-msg-core-1.cisco.com(171.71.163.11) by seraph3.lerc.nasa.gov via smap (V5.5) id xma026052; Wed, 15 Nov 00 16:23:26 -0500 Received: from wooly-booly.cisco.com (wooly-booly.cisco.com [171.69.167.33]) by sj-msg-core-1.cisco.com (8.9.3/8.9.1) with ESMTP id NAA05417; Wed, 15 Nov 2000 13:23:28 -0800 (PST) Received: from bgreenent2 ([10.19.254.81]) by wooly-booly.cisco.com (8.8.8-Cisco List Logging/CISCO.WS.1.2) with SMTP id PAA16340; Wed, 15 Nov 2000 15:23:13 -0600 (CST) From: "Barry Raveendran Greene" To: "Matthew Halsey" , , Subject: RE: how is hybrid ISP routing done Date: Wed, 15 Nov 2000 13:20:12 -0800 Message-ID: <001e01c04f49$d77b1ab0$51fe130a@bgreenent2.cisco.com> MIME-Version: 1.0 Content-Type: text/plain; charset="iso-8859-1" Content-Transfer-Encoding: 7bit X-Priority: 3 (Normal) X-MSMail-Priority: Normal X-Mailer: Microsoft Outlook 8.5, Build 4.71.2173.0 In-Reply-To: <429ACF5B9704D3118D390008C7E9C2ECEF7A4A@KTLINT1> Importance: Normal X-MimeOLE: Produced By Microsoft MimeOLE V4.72.3155.0 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk Content-Transfer-Encoding: 7bit Hello Matt, The following URL has Geoff Huston's orginal work documented and the follow-up work to have this work within one AS. http://www.cisco.com/public/cons/isp/documents/Trans-Oceanic_Systems-BGP.pdf Barry > -----Original Message----- > From: owner-tcpsat@lerc.nasa.gov [mailto:owner-tcpsat@lerc.nasa.gov]On > Behalf Of Matthew Halsey > Sent: Wednesday, November 15, 2000 7:39 AM > To: 'isp-satellites@isp-satellites.com'; 'tcpsat@grc.nasa.gov' > Subject: how is hybrid ISP routing done > > > I have been trying to figure out exactly how hybrid satellite ISP > routing is > actually done? > If a user has a terrestrial ISP connection for making requests, how is it > that the responses are routed back via a satellite uplink facility rather > than back via the terrestrial ISP? > I have seen it explained as IP in IP encapsulation, proxy servers or BGP > routing. Can someone please explain? > > Thanks Matt > > ========================= > Matthew Halsey > Sales Support Manager, Internet Services > Kingston MediaStream > Tel : +44 (0) 1494 878608 > Fax : +44 (0) 1494 874433 > Mobile : +44 (0) 7879 405 880 > mailto:mhalsey@kingston-mediastream.com > http://www.kingston-mediastream.com > ========================= > > > > ****************************************************************** > *********** > This email and any files transmitted with it are confidential and > intended solely for the use of the individual or entity to whom they > are addressed. 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------=_NextPart_000_0020_01C0552A.A55B8600-- From owner-tcpsat@lerc.nasa.gov Thu Nov 23 09:42:49 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 SMTP id JAA07394; Thu, 23 Nov 2000 09:42:49 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id JAA05531 for tcpsat-outgoing; Thu, 23 Nov 2000 09:10:01 -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 SMTP id JAA05515 for ; Thu, 23 Nov 2000 09:10:00 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id JAA06729; Thu, 23 Nov 2000 09:09:59 -0500 Received: from web9704.mail.yahoo.com(216.136.129.140) by seraph3.lerc.nasa.gov via smap (V5.5) id xma006693; Thu, 23 Nov 00 09:09:11 -0500 Message-ID: <20001123140910.63997.qmail@web9704.mail.yahoo.com> Received: from [193.50.49.59] by web9704.mail.yahoo.com; Thu, 23 Nov 2000 06:09:10 PST Date: Thu, 23 Nov 2000 06:09:10 -0800 (PST) From: Hafssa Benaboud Subject: Re: Half Price Cigarettes! Why pay more ? ? ? To: tcpsat@lerc.nasa.gov MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk X-MIME-Autoconverted: from 8bit to quoted-printable by lombok-fi.lerc.nasa.gov id JAA05531 Content-Transfer-Encoding: 8bit X-MIME-Autoconverted: from quoted-printable to 8bit by ietf.org id JAA07394 je ne voix pas la relation avec tcp satellite. --- CheapFags74@Hotmail.com wrote: > Hi, > > In the UK we currently pay around £45.00 for a > carton of 200 > cigarettes. This is just another example of the > highly inflated > prices UK consumers are paying for their goods. > > We can provide the same carton of 200 cigarettes for > just £25.00. > We will also deliver them direct to your door. > > Our service is totally legal and complies with all > EEC > reglations. Free trade within Europe allows you to > buy goods at > a discounted price. 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Millions of Products. http://shopping.yahoo.com/ From owner-tcpsat@lerc.nasa.gov Thu Nov 23 12:23:12 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 SMTP id MAA03078; Thu, 23 Nov 2000 12:23:11 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id LAA12328 for tcpsat-outgoing; Thu, 23 Nov 2000 11:51:28 -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 SMTP id LAA12319 for ; Thu, 23 Nov 2000 11:51:27 -0500 (EST) From: Mohssine.Lahlou@sita.int Received: by seraph3.lerc.nasa.gov; id LAA19276; Thu, 23 Nov 2000 11:51:25 -0500 Received: from mx1.sita.int(57.250.224.237) by seraph3.lerc.nasa.gov via smap (V5.5) id xma019229; Thu, 23 Nov 00 11:50:51 -0500 Received: from montreal1.yul.sita.int (montreal1.yul.sita.int [57.4.233.253]) by mx.sita.int with SMTP id eANGopM15122 for ; Thu, 23 Nov 2000 16:50:51 GMT Received: by montreal1.yul.sita.int(Lotus SMTP MTA v4.6.7 (934.1 12-30-1999)) id 052569A0.005C78AE ; Thu, 23 Nov 2000 11:50:02 -0500 X-Lotus-FromDomain: SITA To: tcpsat@lerc.nasa.gov Message-ID: <052569A0.005C77B3.00@montreal1.yul.sita.int> Date: Thu, 23 Nov 2000 11:49:58 -0500 Subject: REMOVE Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk From owner-tcpsat@lerc.nasa.gov Tue Nov 28 19:24:52 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 SMTP id TAA06442; Tue, 28 Nov 2000 19:24:51 -0500 (EST) Received: (from listserv@localhost) by lombok-fi.lerc.nasa.gov (NASA LeRC 8.9.1.1/8.9.1) id SAA11504 for tcpsat-outgoing; Tue, 28 Nov 2000 18:37:14 -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 SMTP id SAA11464; Tue, 28 Nov 2000 18:36:20 -0500 (EST) Received: by seraph3.lerc.nasa.gov; id SAA23830; Tue, 28 Nov 2000 18:36:18 -0500 Received: from tc070.bbn.com(128.33.238.70) by seraph3.lerc.nasa.gov via smap (V5.5) id xmaa23735; Tue, 28 Nov 00 18:36:00 -0500 Received: from lawyers.grc.nasa.gov (mallman@localhost) by lawyers.grc.nasa.gov (8.9.3/8.9.3) with ESMTP id LAA00331; Tue, 28 Nov 2000 11:35:17 -0500 Message-Id: <200011281635.LAA00331@lawyers.grc.nasa.gov> To: tcpsat@grc.nasa.gov, pilc@grc.nasa.gov From: Mark Allman Reply-To: mallman@grc.nasa.gov Subject: Michael Hadjitheodosiou: CFP: Communications for Space Missions Organization: Late Night Hackers, NASA Glenn, Cleveland, Ohio Song-of-the-Day: Roadhouse Blues Date: Tue, 28 Nov 2000 11:35:16 -0500 Sender: owner-tcpsat@lerc.nasa.gov Precedence: bulk I was asked to forward this announcement to folks on tcpsat and pilc, as there very well could be interested folks on these lists. allman ------- Forwarded Message Date: Fri, 20 Oct 2000 15:51:09 -0400 To: mallman@grc.nasa.gov From: Michael Hadjitheodosiou Subject: CFP: Communications for Space Missions Call For Papers: Special Issue of the International Journal of Satellite Communications: Communications for Space Missions - ------------------------------------------------------------------------------- The start of the deployment of the International Space Station and an increasing number of planetary and other scientific missions have ushered in a new era in space exploration. At the same time, advances in communication technologies will allow investigators on Earth to enjoy a virtual presence in space. This generates a need to provide researchers with high quality communication support that will enable cost effective global access to experimental data from future space missions. Space agencies, like NASA, as well as Industry are also interested to gradually facilitate broadband Internet services throughout future space missions, eventually leading to a scenario where every spacecraft and instrument can be an addressable node and have a direct connection to the Internet. At the same time, there is a drive for space agencies to start utilizing capacity from commercial providers and adopt Commercial Of The Shelf technology. There is clearly a gradual transition to an operational scenario that will enable investigators to access their data "anytime, anywhere" through the Internet. For these reasons, the International Journal of Satellite Communications is launching a special issue on "Communications for Space Missions". This special issue will publish papers describing recent experiences and innovative new ideas on these issues. Specific topics of interest include, but are not limited to: - -Communication Architectures for supporting future near-Earth or Planetary missions. - - Network Issues related to extending IP services to next generation spacecraft. - - New Coding and Modulation techniques for Deep Space Missions. - - Related Antenna Technology developments (e.g. Ka-band, Phased Arrays). - - Protocol support for space missions [Custom protocols (SAFE, SCPS) Vs standard internet protocols (TCP/IP, FTP)]. - - Networking issues for constellations of : -formation flying Nano-satellites,; -networked sensors in space; -the "distributed spacecraft" concept. - - Supporting mission requirements using commercial satcomm providers. DEADLINES Intention to Submit with Abstract (up to 500 words): December 31st, 2000 (Include Full Paper, if available) Full Paper Due: February 28, 2001 Review Process/ Final Paper Due: June 30, 2001 Expected Publication Date: Summer 2001 SUBMISSION INSTRUCTIONS Interested authors should submit a Title / Abstract to : Dr. Michael Hadjitheodosiou Center for Satellite & Hybrid Communication Networks ISR, A.V. Williams Building University of Maryland, College Park MD 20742, USA Tel:+301-405-7904 Fax:+301-314-8586 e-mail: michalis@isr.umd.edu Preferred Method of Submission: - ------------------------------- By e-mail to: michalis@isr.umd.edu Abstract: TXT Format Full Paper: PDF (preferred), Postscript or MS Word electronic attachment. - --------------------------------------------------------------------------- The International Journal of Satellite Communications provides a focus for professionals in all aspects of satellite communications. The Journal covers all aspects of the theory and practice of satellite systems and networks. Information about the Journal: http://www.interscience.wiley.com/jpages/0737-2884/info.html ------- End of Forwarded Message