Demonstration of the Congestion Control Algorithms Implemented by TCP

Abstract: In this paper, we have set up a network in which the Transmission Control Protocol (TCP) is its end-to-end transmission protocol. We have analyzed the congestion window size with different methods. The purpose of this study is to examine the congestion control algorithms implemented by TCP. The article presents a number of scenarios to examine these algorithms. We have tested the scenarios for FTP that transfers files of 1MB and 10MB sizes. The simulation results show the performance and effect of the file’s size. The performance parameters in this work are: Sent Segment Sequence Number, Received Segment Ack Number and Congestion Window Size. The OPNET Modeler simulation results show a good estimation of the traffic examined in the network.