ACCORD Broadband ATM Satellite Experiment (BASE) : protocols characterization / by Isabelle Labbé, Louis Gravel, Gérard Nourry, Corey Pike and John Butterworth, Communications Research Centre, and Gretchen... : Co24-3/7-97-008E-PDF

"A Broadband ATM satellite Experiment (BASE) was carried out between the Communications Research Centre, Canada and Rome Laboratory, USA during the period of May 95 to March 96. The objectives of the experiment was to perform a series of tests to characterize ATM over broadband satellite bearers. This document reports on the second phase of the experiment that was conducted from December 95 to March 96 over the NASA Advanced Communication Technology Satellite (ACTS) satellite (Ka-band). Tests consisted in throughput measurements of TCP over a broadband ATM satellite link as a function of Bit Error Rate (BER). The throughput performance of TCP/IP was very poor due mostly to the (bandwidth * delay) product being limited by the TCP window size implementation. The results are presented along with the influence of others factors such as the Maximum Transmission Unit (MTU) size and packet size. Finally, a performance comparison with a special implementation of TCP for network with large delays and high bandwidth (TCP for Long Fat Networks - TCP-LFN) is presented"--Abstract, page iii.

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