Different lan Technologies

Different lan Technologies1. AIMTo learn about different lan technologies and to design a network based on these lan technologies and to model these networks by a simulation tool know as opnet and by set different loads on these networks and to study the performance of these networks.2. OverviewLocal range networks (LAN) atomic number 18 a group of devices which communicate with each other in a small geo representical area identical within a board or within a building. There are different topologies in LAN which are designed according to usage, cost, amount of traffic flow. The different topologies are star topology, bus topology (Ethernet), ring topology, FDDI.The main aim of this project is to design network and compare different lan topologies and to simulate these networks by putting different network loads and to analyse how these networks behave to the different traffic loads and by running the simulation for a long time. Analyse the results and wherefore to decide which topology is the topper.This project has been suggested by Dr Diane Gan.This project meets the guidelines of the Masters project and the requirements of the programme that i am studying and as i will be able to design an network and simulate it using opnet and to vary the traffic load and to analyse the result of the simulation and to decide which network topology is the best and efficient.After completion of the project i would be in a situation to tell about different parameters of the network like delays, packet secrete arrival time, link utilisation, packet loss.3. ObjectivesLiterature review of different LAN topologiesTo design different LAN topologiesSimulate different LAN topologies by varying the traffic loads say about 20%, 40%,70%,80%Analyse the quality of service (QOS) when an particular load is applied.To compare and analyse the results based on these simulationsTo decide which topology would be the best, looking at the results of the simulations and to suggest which to pology would be better.How the objectives will be achievedResearch on different networking books and different publications like IEEE, ACM etc.To learn to use opnet.Using opnet to design different LAN networks.To simulate these networks with different traffic loads like database traffic, ftp traffic, email traffic, clear surfing, voip, video streaming, printing.To collect and put the result of these simulations on spreadsheet and to analyze the results.To check the results like loads at servers, packets loss, packets delivery time, utilization of the links.To plot the results on graphTo decide which network topology is the best based on the results.4. ResourcesTo complete this project i would requireOpnet ModelerA computer with high constellation so that i could store the network models and the simulations.6. Initial ReferencesComputer networks- Andrew S. Tanenbaum Pearson education international, 2003Network simulations with OPNET by Xinjie Chang, Winter Simulation Conference, Pr oceedings of the 31st conference on Winter simulation Simulationa bridge to the future, Phoenix, Arizona, United States 1999