Collect the test tcp program ttcp (e.g. ttcpw for Windows or ttcp Linux) for traffic testing between hosts. Choose pairs of hosts on your local network and test the transmission rates between them. On...

Collect the test tcp program ttcp (e.g. ttcpw for Windows or ttcp Linux) for traffic testing between hosts. Choose pairs of hosts on your local network and test the transmission rates between them. On the receiver host, use:  ttcp_linux -s -r  to receive and discard a standard source transmission, and on the transmitting host, use:  ttcp_linux -s -t receiver-IP

(a) Write a script to repeat this standard test every five minutes over the course of a day. Plot the transmission rate as a function of time throughout the day. Explain why the measured value varies as a function of time.

(b) Work out the average transmission rate and the standard deviation of the values in the previous part. What is the meaning of (what interpretation do you offer for) the average and standard deviation values for the whole day?

(c) Now pick ten hosts from a variety of locations on your LAN; make ten measurements of the transmission rate between each host and a single reference host. Work out the average and standard deviation in each case. Make a table of the results. Can you explain the differences between different hosts? Hint: think about the different hardware of hosts, what hardware connects them, and environmental factors.