Problem
I. Suppose, in TCP's adaptive retransmission mechanism, that EstimatedRTT is 90 at some point and subsequent measured RTTs are all 200. How long does it take before the TimeOut value, as calculated by the Jacobson/Karels algorithm, falls below 300? Assume initial Deviation value of 50; use α = μ = 1/8 and β=4. Use a program to solve this problem. You can use Matlab to solve it. Upload your code file separately.
II. For the abovd question, 1) generate a plot showing how RTO changes over time. Use X-axis to represent the number of iterations (from 1 to 70) and Y-axis as the value of RTO. From the plot, we can tell that the RTO will eventually converge to ___. 2) If μ is set to 1/4, plot a new figure. Obviously, the adaptive speed of RTO is then ___.
Embed your figures under this question. You can generate them into one figure to better show the corresponding changes due to various μ.
III. Explain your results, i.e., why the increment of μ leads to such a change?