Netw420 Week3 Ilab

Preparation for Performance Management 100 Mbps Lab

1. Based on the interarrival time used in this lab (0.005), the number of users (10), and the frame size used in each of the three runs, calculate the following (see pages 13 and 14 of this lab for example calculations).

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1. How many total bits/sec for the network would you expect to be sent for the frame size of 256 bytes?

When using a frame size of 256 bytes the network would be expected to have a speed of 4.192 Mbps.

2. How many total bits/sec for the network would you expect to be sent for the frame size of 512 bytes?

When using a frame size of 512 bytes the network would be expected to have a speed 8.192 Mbps.

3. How many total bits/sec for the network would you expect to be sent for the frame size of 1,024 bytes?

When using a frame size of 1024 bytes the network would be expected to have a speed 1.638,4 Mbps.

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2. Use the Scenario > Switch To Scenario option, and go to the PK256_100Mbps run. Select View Results from the toolbar, and select Global Statistics > Traffic Source -> Traffic Sent (bits/sec). Set the view setting to AS IS, and select the Show tab. Copy and paste this graph to your lab report.

After you copy this graph to your lab report, repeat this process for the PK512_100Mbps and the PK1024_100Mbps runs so that you now have three labeled graphs imported to your lab report that indicate how many packets were sent for each of the three frame sizes used in this lab.

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Then use these graphs to answer the following.

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4. Compare the simulation results for the PK256_100Mbps run with your calculations from Question 1 part (a). Are they about the same?

Comparing the results to the calculation, the results are almost identical to the calculations performed.

5. Compare the simulation results for the PK512_100Mbps run with your calculations from Question 1 part (a). Are they about the same?

Comparing the results to the calculation,...