Congestion avoidance and control
SIGCOMM '88 Symposium proceedings on Communications architectures and protocols
A control-theoretic approach to flow control
SIGCOMM '91 Proceedings of the conference on Communications architecture & protocols
Evaluation of TCP Vegas: emulation and experiment
SIGCOMM '95 Proceedings of the conference on Applications, technologies, architectures, and protocols for computer communication
Packet network simulation: speedup and accuracy versus timing granularity
IEEE/ACM Transactions on Networking (TON)
The Influence of the Large Bandwidth-Delay Product on TCP Reno, NewReno, and SACK
ICOIN '01 Proceedings of the The 15th International Conference on Information Networking
TCP Vegas: end to end congestion avoidance on a global Internet
IEEE Journal on Selected Areas in Communications
Wide-area Internet traffic patterns and characteristics
IEEE Network: The Magazine of Global Internetworking
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With the rapid expansion of the Internet, it has become possible for end hosts that are separated long apart to be connected through high bandwidth links. This environment, called a Large Bandwidth Delay Network, poses a major challenge to the performance of the Internet. A long-delay connection usually suffers from being treated unfairly when competing with short-delay connections. A link, to avoid being underutilized, has to be equipped with an a buffer as large as the bandwidth delay product of the longest connection.TCP-Vegas is known as a potential solution to these problems. According to a number of previous studies, it is said to fairly treat connections with different propagation delays and avoid under-utilization even with a buffer that is independent of the bandwidth delay product.In this paper we show, from simulation and analysis, that the current TCP-Vegas does NOT achieve high utilization in such a large bandwidth delay network, because of its slow-start phase. Moreover, to avoid loss, TCP-Vegas slow-start requires a buffer that is proportional to the square root of the bandwidth delay product. We propose a solution to these problems and analyze its performance.