1. NETW420 Week 2 iLab 2
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http://homeworkfox.com/tutorials/general-
questions/8320/netw420-week-2-ilab-2/
1. How many total bits/sec for the network would you expect to be sent for the frame size of 256
bytes?
2. How many total bits/sec for the network would you expect to be sent for the frame size of 512
bytes?
3. How many total bits/sec for the network would you expect to be sent for the frame size of
1,024 bytes?
Compare the simulation results for the PK256_10Mbps run with your calculations from Question
1 part (a). Are they about the same?
Compare the simulation results for the PK512_10Mbps run with your calculations from Question
1 part (a). Are they about the same?
Compare the simulation results for the PK1024_10Mbps run with your calculations from
Question 1 part (a). Are they about the same?
For the PK256_10Mbps run, compare the total traffic sent to the total traffic received. Are they
the same? Would you expect them to be about the same? Why or why not?
For the PK512_10Mbps run, compare the total traffic sent to the total traffic received. Are they
the same? Would you expect them to be about the same? Why or why not?
For the PK1024_10Mbps run, compare the total traffic sent to the total traffic received. Are they
the same? Would you expect them to be about the same? Why or why not?
For the PK256_10Mbps run, estimate the average end-to-end delay time.
For the PK512_10Mbps run, estimate the average end-to-end delay time.
For the PK1024_10Mbps run, estimate the average end-to-end delay time.
Examine the graph that shows throughput in the direction of Hub1 to the switch. Which frame
size has the highest throughput? Explain why.
Examine the graph that shows throughput in the direction of the switch to Hub1. Which frame
size has the highest throughput? Explain why.

2. Examine both graphs and compare the throughput on the link that attaches Hub1 to the switch
in both directions. In which direction is the throughput higher? Why are they not the same?
Write a one to two page summary report describing which of the three frame sizes (256 byte, 512
bytes, and 1,024 bytes) you would choose to implement if you were the network administrator
for the low-bandwidth LAN network that was analyzed in this lab. To help support your analysis,
you should reference some of your answers from the required lab question section. In addition,
you must import a minimum of two graphs that you obtained during this lab to help support your
conclusions.