Mobile Networks Lab 7 mobilenetworkslab@gmail.com Lab Quiz Mobile Networks Lab 7 mobilenetworkslab@gmail.com.

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Mobile Networks Lab 7 mobilenetworkslab@gmail.com Lab Quiz Mobile Networks Lab 7 mobilenetworkslab@gmail.com

Scenarios Create two scenarios: Connect all nodes with10BaseT The first one is the HubLAN scenario The second is the HubAndSwitchLAN scenario Connect all nodes with10BaseT Compare the performance of the four scenarios in terms of delay, throughput, and collision count.

Parameters Packet size= Packet Inter-arrival time=exp(0.001) 512 bytes

Questions Compare the load and throughput of both scenarios. Find %age increase/decrease of throughput for 2nd scenario. Compare the Delay observed by packets in both scenarios. Find %age increase/decrease of the end-end delay in 1st scenario. Compare the collision count of centralHub (Scenario1), Hub1Hub4(Scenario2). Find %age increase/decrease of collision count of centralHub(scenario1 HubLAN).

Analysis Questions Explain why adding a switch makes the network perform better in terms of throughput and delay. Analyze the collision count of the Switch in Scenario2 and compare the result with that of HUB. Explain the difference. Observe the difference in throughput(bits/sec) for different packet sizes. Explain your answer.