A Comparative Analysis Of Network Performances Of Ethernet, Token Ring And Fddi Protocols In Distributed Systems
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Date
2018-06
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KNUST
Abstract
Internet connectivity is growing with most enterprises shifting to the use of web-based services to satisfy the demands of clients in their organisations. The choice of suitable LAN protocols in network design is of great concern to individuals and organisations. Failure to make the right choice can lead to poor network performances that lower the speed to access information. How can organizations' LAN performances be improved? How fast is data or information transmitted to and from business organization? This research work was carried out to investigate a comparative analysis of network performances of Ethernet, Token Ring and FDDI protocols in terms of throughput and delay in a distributed system. In the study, three LAN protocols; Ethernet, FDDI and Token Ring were modelled and devices within the network were configured using Cisco Packet Tracer Version 7.1 to evaluate their network performances. Varied packet sizes were sent from one station to another workstation on each of the scenarios created. The simulation exercise was conducted after which the time it takes for a machine to receive a packet and sending machine to receive an acknowledgement is recorded and evaluated. The difference between the times a packet was sent from machine to another and the time to take acknowledgement of receipt of the packet was computed as delay. Several scenarios were evaluated through simulations using Cisco Packet Tracer Version 7.1 to show network performances of the three networks. The simulation was done 10 times each for the different scenarios using FTP and SMTP application of a constant packet sizes with varied time and vice versa. The time was recorded as well as averages computed. The general conclusion is that based on the perfomance metrics; delay and throughput used in the study, FDDI recorded the least values of throughput and delay in most of the scenarios according to the tables and figures.
FDDI therefore have better network performance than Token Ring and Ethernet.
Description
A THESIS SUBMITTED TO THE DEPARTMENT OF COMPUTER SCIENCE, KWAME NKRUMAH UNIVERSITY OF SCIENCE AND TECHNOLOGY IN PARTIAL FUFILLMENT OF THEREQUIREMENT FOR THE DEGREE OF MASTER OF SCIENCE IN INFORMATION TECHNOLOGY