Homework 3

Due Nov 4, 2003

This homework is to be done in groups of two. Individual work is acceptable, but not encouraged.

In this homework, you will study the correlation between network hops and round-trip latency on the Internet. Two earlier published studies in this regard are available here and here, the second one being a follow-up of the first. These should provide you with  enough background. You are expected to generate an appropriate number of samples and come up with a reasonable way to select target sites to ping. At the minimum, you are expected to do a linear regression analysis to measure the correlation between network hops and round-trip latency [RJ Chapter 14].

The tools of your trade will be tcpping and tcptraceroute. They work similar to more traditional ping and traceroute. They are installed on the system you will use. Since you will have root access on the system you will use, the system information will be given out to you in class. 

You should submit a brief report of your method and findings, including any plots/charts/tables. No need to submit any code.