The slow start phase's throughput ??
As mentioned in Chapter 14, TCP starts with a small congestion window, which is initially set to 1 MSS, and go through the slow start phase. The congestion window increases multiplicatively, e.g., 2 MSSs, 4 MSSs, 8 MSSs, ..., for every round trip time, until the slow start threshold is reached and the congestion avoidance phase is entered. Suppose you open a web browser and try to download a webpage of 70 MSSs.
(a) Assuming there is no packet lost, how many RTTs are required in order to download the webpage? Remember to add up one RTT of handshake to set up the TCP connection.
(b) If RTT = 100 ms, what is the average throughput in kbps? Can you see the impact of slow start on a short-duration session's throughput?