5. (25 points) TCP Congestion Control Consider the following plot of congestion window size as a function of transmission ro that TCP Reno is used. und. Assume TCP Reno 2 246810-12 14 16 18 20 time (RTT) (a) (2 pts) Identify the time intervals of TCP slow start. (b) (3 pts) Identify the time intervals of TCP congestion avoidance (c) (2 pts) What is the initial value of ssthresh at the first transmission round? (d) (2 pts) After the 10h RTT is the segment loss detected by a triple duplicate ACK or by a timeout? ts) After the 10t RTT, when the segment loss is detected, what will the values of ssthresh and cwnd immediately update to? After that, if a new ACK is received (at 11th RTT), what will the cwnd value change to? 0 (6 pts) After the 14th RTT, is the segment loss detected by a triple duplicate ACK or by a timeout? After that, what will the values of ssthresh and cwnd update to? (8) (4 pts) Estimate the average throughput for the time interval (0,20RTT]? Assuming each segment is 15 KBytes, and RTT 1se