Problem 5 (bonus) Consider a version of TCP where cwnd grows by a-MSS upon receiving each new ACK. Suppose that cwnd starts from W/2 bytes, grows as specified until reaching W bytes, and then is reset to W/2 bytes upon detecting a loss (no loss in between). Assume that each segment contains MSS bytes of data, and each round takes RTT seconds.
a) How many rounds does it take for cwnd to grow from W/2 to W? [2 pt]
b) How many bytes are transmitted during the period that cwnd grows from W/2 to W (including bytes sent in the last round)? [2 pt]
c) What is the loss rate? [1 pt]