Recent developments in mobile router technology include the ability to prioritize selection of th... more Recent developments in mobile router technology include the ability to prioritize selection of the home agent by the mobile unit. This technology was originally developed for route optimization. However, the technology also can be applied to autonomous catastrophic recovery, and robust redundant network control centers. This paper describes a variety of architecture scenarios that can benefit from prioritized home agents including: homeland security, virtual mission operations, mobile command centers and route optimization for aeronautical applications.
2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277), 2001
Cisco Systems and NASA Glenn Research Center under a NASA Space Act Agreement have been performin... more Cisco Systems and NASA Glenn Research Center under a NASA Space Act Agreement have been performing joint networking research to apply Internet technologies and protocols to space-based communications. During this time, Cisco Systems developed the mobile-router which NASA and Cisco jointly tested. The early field trials of this technology have been successfully completed. The mobile-router is software code that resides in a network router. A Mobile-Router allows entire networks to roam while maintaining connectivity to the Internet. This router code is pertinent to a myriad of applications for both the government and commercial sectors. This technology will be applied to the wireless battlefield. NASA and the DoD will utilize this technology for nearplanetary observation and sensing spacecraft. It is the enabling technology for communication via the Internet or Intranets to aircraft. Information such as weather, air traffic control, voice and video can be easily and inexpensively transmitted to the aircraft using Internet protocols. The mobile router can be incorporated into emergency vehicles particularly ambulances and lifeflight aircraft to provide real-time connectivity back to the hospital and healthcare experts. Commercial applications include entertainment services, IP telephone, and Internet connectivity for cruise ships, commercial shipping, tour busses, aircraft, and eventually cars.
The combination of the CLEO and VMOC initiatives together provides a framework to define, test, a... more The combination of the CLEO and VMOC initiatives together provides a framework to define, test, and field a 'system of systems' based on the Internet Protocol (IP), capable of supporting secure distributed mission operations of IP-based platforms and sensors.
Proceedings of the 4th ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems - MSWIM '01, 2001
Cisco System and NASA have been performing joint research on mobile routing technology under a NA... more Cisco System and NASA have been performing joint research on mobile routing technology under a NASA Space Act Agreement. Cisco developed mobile router technology and provided that technology to NASA for applications to aeronautic and space-based missions. NASA has performed stringent performance testing of the mobile router, including of the interaction of routing and transport level protocols. This paper describes
Devices and associated applications are increasingly connected to a variety of smart modems that ... more Devices and associated applications are increasingly connected to a variety of smart modems that have dynamically varying link characteristics. For example, incoming and outgoing link rates can be varied over time with adaptive coding and modulation to suit the channel characteristics. In addition, those links may go up and down due to a variety of factors. The link rate and
he Space Program Office and Communication Technology Division of the NASA Glenn Research Center h... more he Space Program Office and Communication Technology Division of the NASA Glenn Research Center have been working with the United States satellite communication industry over the past 16 years to develop advanced communication and networking technologies to improve commercial satellite communications. With the recent explosion of the Internet and the enormous business opportunities available to communication system providers, great interest has developed in using commercial protocols over satellite networks. NASA Glenn has been addressing five major areas of concern regarding broadband satellite communications using commercial protocols: quality of service (QoS), interoperability, routing, traffic management, and protocol bandwidth efficiency.
IEEE Aerospace and Electronic Systems Magazine, 2001
The National Aeronautics and Space Administration (NASA) is interested in applying mobile Interne... more The National Aeronautics and Space Administration (NASA) is interested in applying mobile Internet protocol (mobile-ip) technologies to its space and aeronautics programs. In particular, mobile-ip will play a major role in the Advanced Aeronautic Transportation Technology (AATT), the Weather Information Communication (WINCOMM), and the Small Aircraft Transportation System (SATS) aeronautics programs. This paper describes mobile-ip and mobile routersin particular, the features, capabilities, and initial performance of the mobile router are presented. The application of mobilerouter technology to NASA's space and aeronautics programs is also discussed.
After a year of testing and demonstrating a Cisco mobile access router intended for terrestrial u... more After a year of testing and demonstrating a Cisco mobile access router intended for terrestrial use onboard the low-Earth-orbiting UK-DMC satellite as part of a larger merged ground/space IP-based internetwork, we reflect on and discuss the benefits and drawbacks of integration and standards reuse for small satellite missions.
This paper describes a network demonstration and three month field trial of mobile networking usi... more This paper describes a network demonstration and three month field trial of mobile networking using mobile-IPv4. The network was implemented as part of the US Coast Guard operational network which is a ".mil" network and requires stringent levels of security. The initial demonstrations took place in November 2002 and a three month field trial took place from July through September of 2003. The mobile network utilized encryptors capable of NSA-approved Type 1 algorithms, mobile router from Cisco Systems and 802.11 and satellite wireless links. This paper also describes a conceptual architecture for wide-scale deployment of secure mobile networking in operational environments where both private and public infrastructure is used. Additional issues presented include link costs, placement of encryptors and running routing protocols over layer-3 encryption devices.
After twenty months of flying, testing and demonstrating a Cisco mobile access router, originally... more After twenty months of flying, testing and demonstrating a Cisco mobile access router, originally designed for terrestrial use, onboard the low-Earth-orbiting UK-DMC satellite as part of a larger merged ground/space IP-based internetwork, we use our experience to examine the benefits and drawbacks of integration and standards reuse for small satellite missions.
a Cisco Internet router (Cisco Systems, Inc., San Jose, CA) was launched into low Earth orbit onb... more a Cisco Internet router (Cisco Systems, Inc., San Jose, CA) was launched into low Earth orbit onboard the UK-DMC, the disaster-monitoring satellite built by Surrey Satellite Technology Limited (SSTL, Guildford, UK). This router has since been successfully tested and demonstrated by an international government and private sector collaboration, showing how IP can be used to communicate with satellite payloads in space.
Recent developments in mobile router technology include the ability to prioritize selection of th... more Recent developments in mobile router technology include the ability to prioritize selection of the home agent by the mobile unit. This technology was originally developed for route optimization. However, the technology also can be applied to autonomous catastrophic recovery, and robust redundant network control centers. This paper describes a variety of architecture scenarios that can benefit from prioritized home agents including: homeland security, virtual mission operations, mobile command centers and route optimization for aeronautical applications.
2001 MILCOM Proceedings Communications for Network-Centric Operations: Creating the Information Force (Cat. No.01CH37277), 2001
Cisco Systems and NASA Glenn Research Center under a NASA Space Act Agreement have been performin... more Cisco Systems and NASA Glenn Research Center under a NASA Space Act Agreement have been performing joint networking research to apply Internet technologies and protocols to space-based communications. During this time, Cisco Systems developed the mobile-router which NASA and Cisco jointly tested. The early field trials of this technology have been successfully completed. The mobile-router is software code that resides in a network router. A Mobile-Router allows entire networks to roam while maintaining connectivity to the Internet. This router code is pertinent to a myriad of applications for both the government and commercial sectors. This technology will be applied to the wireless battlefield. NASA and the DoD will utilize this technology for nearplanetary observation and sensing spacecraft. It is the enabling technology for communication via the Internet or Intranets to aircraft. Information such as weather, air traffic control, voice and video can be easily and inexpensively transmitted to the aircraft using Internet protocols. The mobile router can be incorporated into emergency vehicles particularly ambulances and lifeflight aircraft to provide real-time connectivity back to the hospital and healthcare experts. Commercial applications include entertainment services, IP telephone, and Internet connectivity for cruise ships, commercial shipping, tour busses, aircraft, and eventually cars.
The combination of the CLEO and VMOC initiatives together provides a framework to define, test, a... more The combination of the CLEO and VMOC initiatives together provides a framework to define, test, and field a 'system of systems' based on the Internet Protocol (IP), capable of supporting secure distributed mission operations of IP-based platforms and sensors.
Proceedings of the 4th ACM international workshop on Modeling, analysis and simulation of wireless and mobile systems - MSWIM '01, 2001
Cisco System and NASA have been performing joint research on mobile routing technology under a NA... more Cisco System and NASA have been performing joint research on mobile routing technology under a NASA Space Act Agreement. Cisco developed mobile router technology and provided that technology to NASA for applications to aeronautic and space-based missions. NASA has performed stringent performance testing of the mobile router, including of the interaction of routing and transport level protocols. This paper describes
Devices and associated applications are increasingly connected to a variety of smart modems that ... more Devices and associated applications are increasingly connected to a variety of smart modems that have dynamically varying link characteristics. For example, incoming and outgoing link rates can be varied over time with adaptive coding and modulation to suit the channel characteristics. In addition, those links may go up and down due to a variety of factors. The link rate and
he Space Program Office and Communication Technology Division of the NASA Glenn Research Center h... more he Space Program Office and Communication Technology Division of the NASA Glenn Research Center have been working with the United States satellite communication industry over the past 16 years to develop advanced communication and networking technologies to improve commercial satellite communications. With the recent explosion of the Internet and the enormous business opportunities available to communication system providers, great interest has developed in using commercial protocols over satellite networks. NASA Glenn has been addressing five major areas of concern regarding broadband satellite communications using commercial protocols: quality of service (QoS), interoperability, routing, traffic management, and protocol bandwidth efficiency.
IEEE Aerospace and Electronic Systems Magazine, 2001
The National Aeronautics and Space Administration (NASA) is interested in applying mobile Interne... more The National Aeronautics and Space Administration (NASA) is interested in applying mobile Internet protocol (mobile-ip) technologies to its space and aeronautics programs. In particular, mobile-ip will play a major role in the Advanced Aeronautic Transportation Technology (AATT), the Weather Information Communication (WINCOMM), and the Small Aircraft Transportation System (SATS) aeronautics programs. This paper describes mobile-ip and mobile routersin particular, the features, capabilities, and initial performance of the mobile router are presented. The application of mobilerouter technology to NASA's space and aeronautics programs is also discussed.
After a year of testing and demonstrating a Cisco mobile access router intended for terrestrial u... more After a year of testing and demonstrating a Cisco mobile access router intended for terrestrial use onboard the low-Earth-orbiting UK-DMC satellite as part of a larger merged ground/space IP-based internetwork, we reflect on and discuss the benefits and drawbacks of integration and standards reuse for small satellite missions.
This paper describes a network demonstration and three month field trial of mobile networking usi... more This paper describes a network demonstration and three month field trial of mobile networking using mobile-IPv4. The network was implemented as part of the US Coast Guard operational network which is a ".mil" network and requires stringent levels of security. The initial demonstrations took place in November 2002 and a three month field trial took place from July through September of 2003. The mobile network utilized encryptors capable of NSA-approved Type 1 algorithms, mobile router from Cisco Systems and 802.11 and satellite wireless links. This paper also describes a conceptual architecture for wide-scale deployment of secure mobile networking in operational environments where both private and public infrastructure is used. Additional issues presented include link costs, placement of encryptors and running routing protocols over layer-3 encryption devices.
After twenty months of flying, testing and demonstrating a Cisco mobile access router, originally... more After twenty months of flying, testing and demonstrating a Cisco mobile access router, originally designed for terrestrial use, onboard the low-Earth-orbiting UK-DMC satellite as part of a larger merged ground/space IP-based internetwork, we use our experience to examine the benefits and drawbacks of integration and standards reuse for small satellite missions.
a Cisco Internet router (Cisco Systems, Inc., San Jose, CA) was launched into low Earth orbit onb... more a Cisco Internet router (Cisco Systems, Inc., San Jose, CA) was launched into low Earth orbit onboard the UK-DMC, the disaster-monitoring satellite built by Surrey Satellite Technology Limited (SSTL, Guildford, UK). This router has since been successfully tested and demonstrated by an international government and private sector collaboration, showing how IP can be used to communicate with satellite payloads in space.
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Papers by Dan Shell