TCP is robust and flexible when operated on wired terrestrial networks. There are problems, however, when TCP is used on long delay satellite links. This paper first studies the effects that these long delays have on TCP, and then it presents a transport layer solution that is implemented in OPNET 7.0. This solution enables TCP to share congestion control information among connections between the same host-pair. The shared information is used to speed up new connections to the same destination, and to coordinate concurrent connections in order to reduce the possibility of congestion losses.
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