The development of the information and the entertainment needs more technology to access the information and entertainment we need. Sometimes, the network that already exists couldn't supply the information to the user that increases very fast. So the network needs expanded or built a new network to serve the demand. Making change in the existing network structure requires an adequate investigation, such that when those changes are made performance and reliability is not comprised. This project looks into possible expansion of an existing Ethernet network and how the addition of an infrastructure new network could affect the overall performance and the reliability of the network. 

The Ethernet network performance could be measured by these parameters. Throughput, delay including: end to end delay, mean delay, queuing delay, client to server end to end delay, service time, link utilization, and server utilization. By analyzing these parameters, we can see that the network performance is suitable or not. So we can decide to rebuild the network or not.