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ACTS 118x Final Report High-Speed TCP Interoperability TestingWith the recent explosion of the Internet and the enormous business opportunities available to communication system providers, great interest has developed in improving the efficiency of data transfer using the Transmission Control Protocol (TCP) of the Internet Protocol (IP) suite. The satellite system providers are interested in solving TCP efficiency problems associated with long delays and error-prone links. Similarly, the terrestrial community is interested in solving TCP problems over high-bandwidth links. Whereas the wireless community is interested in improving TCP performance over bandwidth constrained, error-prone links. NASA realized that solutions had already been proposed for most of the problems associated with efficient data transfer over large bandwidth-delay links (which include satellite links). The solutions are detailed in various Internet Engineering Task Force (IETF) Request for Comments (RFCs). Unfortunately, most of these solutions had not been tested at high-speed (155+ Mbps). Therefore, the NASA's ACTS experiments program initiated a series of TCP experiments to demonstrate scalability of TCP/IP and determine how far the protocol can be optimized over a 622 Mbps satellite link. These experiments were known as the 118i and 118j experiments. During the 118i and 118j experiments, NASA worked closely with SUN Microsystems and FORE Systems to improve the operating system, TCP stacks. and network interface cards and drivers. We were able to obtain instantaneous data throughput rates of greater than 520 Mbps and average throughput rates of 470 Mbps using TCP over Asynchronous Transfer Mode (ATM) over a 622 Mbps Synchronous Optical Network (SONET) OC12 link. Following the success of these experiments and the successful government/industry collaboration, a new series of experiments. the 118x experiments. were developed.
Document ID
19990116706
Acquisition Source
Glenn Research Center
Document Type
Preprint (Draft being sent to journal)
Authors
Ivancic, William D. (NASA Glenn Research Center Cleveland, OH United States)
Zernic, Mike (NASA Glenn Research Center Cleveland, OH United States)
Hoder, Douglas J. (NASA Glenn Research Center Cleveland, OH United States)
Brooks, David E. (Infinite Global Infrastructures, LLC Chicago, IL United States)
Beering, Dave R. (Infinite Global Infrastructures, LLC Chicago, IL United States)
Welch, Arun (Infinite Global Infrastructures, LLC Chicago, IL United States)
Date Acquired
September 6, 2013
Publication Date
November 1, 1999
Subject Category
Space Communications, Spacecraft Communications, Command And Tracking
Report/Patent Number
E-11931
NAS 1.15:209445
NASA/TM-1999-209445
Meeting Information
Meeting: Ka-Band Utilization
Location: Sicily Island
Country: Italy
Start Date: October 18, 1999
End Date: October 20, 1999
Sponsors: Instituto Internazionale delle Comunicazioni Taormina
Funding Number(s)
PROJECT: RTOP 632-50-5A
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

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