Modeling &Simulation of Traffic Classification in Networks Case Study: SUST Network

Abstract

The growth of internet and increase in multimedia applications has created significant challenges on the networks to support higher bandwidth and provide quality of service guarantees needs by this application. Congestion, packet loss and delays in a network can adversely affect the Quality of Service for the multimedia applications. Therefore, mechanisms to manage bandwidth usage must be utilized to maximize the service quality. Bandwidth management is a technique that allows the use of bandwidth to be protected or limited for a given class of applications. Using this technology guarantees adequate bandwidth is always available for critical applications while allowing non –critical application to compete for the reminder of this bandwidth. In this research the researcher proposes bandwidth management algorithm that efficiently manages various kinds of user traffic by categorizing them into three classes according to the traffic priority and gives each class their needs in term of bandwidth. This algorithm is suitable for multimedia services because the reservation strategy make sure that sufficient bandwidth is always available for high priority service like multimedia application. A program implemented to Test the efficient or failure of the suggested bandwidth management algorithm, using visual basic .net and Sql Server as programming language .the algorithm has been tested and the researcher finds that multimedia application has a good chance to deliver more packet than the lower priority application (best effort traffic).and also lower priority traffic has a chance to access the network, this indicate that each type of traffic takes its share in resource distribution.