Consider the following plot below of TCP window size as a function of time. Assuming TCP Reno is the protocol experiencing the behaviour shown above, answer the following questions. In all cases, you should provide a short discussion justifying your answer. a. Identify the intervals of time when TCP slow start is operating. b. Identify the intervals of time when TCP congestion avoidance is operating. c. After the 16th transmission round, is segment loss detected by a triple duplicate ACK or by a timeout? d. After the 22nd transmission round, is segment loss detected by a triple duplicate ACK or by a timeout? e. What is the initial value of Threshold at the first transmission round? f. What is the value of threshold at the 18th transmission round? g. What is the value of threshold at the 24th transmission round? h. During what transmission round is the 70th segment sent? i. Assuming a packet lost is detected after the 26th round by the receipt of a triple duplicate ACK, what will be the values of the congestion-window size and of Threshold?
Consider the following plot below of TCP window size as a function of time. Assuming TCP Reno is the protocol experiencing the behaviour shown above, answer the following questions. In all cases, you should provide a short discussion justifying your answer.
a. Identify the intervals of time when TCP slow start is operating.
b. Identify the intervals of time when TCP congestion avoidance is operating.
c. After the 16th transmission round, is segment loss detected by a triple duplicate ACK or by a timeout?
d. After the 22nd transmission round, is segment loss detected by a triple duplicate ACK or by a timeout?
e. What is the initial value of Threshold at the first transmission round?
f. What is the value of threshold at the 18th transmission round?
g. What is the value of threshold at the 24th transmission round?
h. During what transmission round is the 70th segment sent?
i. Assuming a packet lost is detected after the 26th round by the receipt of a triple duplicate ACK, what will be the values of the congestion-window size and of Threshold?
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