Consider the following plot of TCP window size as a function of time:

Assuming the TCP protocol discussed in class is experiencing the behavior shown above, answer the following questions.

Identify the intervals of time when TCP slow start is operating.

Identify the intervals of time when TCP congestion avoidance is operating.

After the 16th transmission round, is segment loss detected by a triple duplicate ACK or by a timeout?

What is the initial value of ssthreshold at the first transmission round?

What is the value of ssthreshold at the 18th transmission round?

What is the value of ssthreshold at the 24th transmission round?

During what transmission round is the 70th segment sent?

Assuming a packet loss 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 ssthreshold?

10 15 20 25 30 Transmission Round