4. Consider a TCP Tahoe flow. Assume the initial TCP congestion window size is cwnd-1 packet, sshreshold-10 packet, and the sender sends out packets starting from packet I. Suppose packet S is lost in its first transmission and will go through in subsequent try. All other packets will go through in their first transmission. Plot the time line graph for this flow until the transmission of packet 15. You also need to show the value of
OR
OR