Effect of Packet-Size Over Network Performance

TCP (Transmission Control Protocol) is the most widely-used protocol on Internet. It divides one large data into small sized packets, called segments. Segmentation is useful for improving network performance. It has a major problem in that its congestion control algorithm does not allow flows to obtain full available bandwidth during fast long-distance links. One of the tools for evaluating TCP performance in various network scenarios is Network Simulator-2 (NS-2). By using this tool one can simulate and evaluate the performance of different TCP algorithms. In fast network one of the factors that degrade the TCP performance is packet size.