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Authors:
James F. Kurose, Keith W. Ross
Chapter:
Transport Layer
Exercise:
Problems
Question:49 | ISBN:9780132856201 | Edition: 6

Question

Let T (measured by RTT) denote the time interval that a TCP connection takes to increase its congestion window size from W/2 to W, where W is the maximum congestion window size. Argue that T is a function of TCP’s average throughput.

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Answer

Here, B represents as the average throughput of a connection.

If a connection has loss rate L, then its average throughput

                                                          

Loss rate L is derived from the above formula as shown below:

TCP host sends 1/L packets between two consecutive packet losses.

Hence, the time interval T is derived as follows

Therefore, T is a function of TCP’s average throughput.

 

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