Performance Evaluation of TCP Extensions on ATM over High Bandwidth Delay Product Networks

Practical experiments in a satellite network environment assist in the design and understanding of future global networks. This paper describes the practical experiences gained from TCP/IP on ATM networks over a high speed satellite link and presents performance comparison studies of such networks with the same host/traac conngurations over local area (LAN) and wide area (WAN) networks. These comparison studies on the LAN, WAN, and satellite environments increase our understanding of the behavior of high bandwidth networks. NASA's Advanced Communications Technology Satellite (ACTS), with its special characteristics and high data rate satellite channels, and the ACTS ATM Internetwork (AAI) were used in these experiments to deliver broadband traac. Network performance tests were carried out using application-level software (Netspec) on SONET OC-3 (155.52 Mbps) satellite links. Finally, in this paper we study the performance, eeciency, fairness, and aggressiveness of TCP Reno, TCP New Reno, and TCP SACK end hosts on ATM networks over high Bandwidth Delay Product (BDP) networks.