Performance Measurement of TCP and UDP Using Different Queuing Algorithm in High Speed Local Area Network

Abstract

In the current high speed networks, it is increasingly important to have mechanisms that keep throughput high but average queue sizes low. The queue management algorithm, which is applied to a router, plays an important role in providing Quality of Service (QoS). This paper present a Simulation-based performance Evaluation of two well known transport layer protocol TCP and UDP using two popular queue management methods; Random Early Detection (RED) and Drop Tail, in terms of throughput, queuing delay, packet drop rate and bandwidth utilization. In this paper we study the effect of buffer behavior on each one of these QoS measurements. TCP, UDP and shared topology scenarios are simulated by considering varying number of client case topologies and also the effect of performance in TCP and UDP with increasing the number of client. This simulation report is useful for implementing the queue management algorithm in router based on the traffic type and bandwidth. Index Terms—TCP, UDP, drop tail, RED queue, bandwidth delay product, throughput and end-to-end delay.