Experimental evaluation of TCP congestion control mechanisms in short and long distance networks

Abstract

Originally TCP was designed for early, low bandwidth, short distance networks, so Standard TCP did not utilize the maximum bandwidth in today’s high bandwidth network environments. Therefore a lot of TCP congestion control mechanisms also known as TCP variants have been developed for today’s long distance high bandwidth networks. In this paper the experimental results evaluating the performance of TCP Reno, HighSpeed TCP, BIC TCP, TCP CUBIC and Compound TCP in short and long distance high bandwidth networks are presented. Results show that TCP CUBIC shows the highest performance in goodput whereas TCP Compound shows the highest performance in protocol fairness and TCP friendliness as compared to the other stat of the art congestion control mechanisms.