Question: Computer Networking: A Top-Down Approach (6th/7th editions) chapter 3 problem 37. P36. Compare GBN, SR, and TCP (no delayed ACK). Assume that the timeout values

Computer Networking: A Top-Down Approach (6th/7th editions) chapter 3 problem 37.

P36. Compare GBN, SR, and TCP (no delayed ACK). Assume that the timeout values for all three protocals are sufficiently long such that 5 consecutive data segments and their corresponding ACKs can be received (if not lost in the channel) by the receiving host (Host B) and the sending host (Host A) respectively. Suppose Host A sends 5 data segments to Host B, and the 2nd segment (sent from A) is lost. In the end, all 5 data segments have been correctly received by Host B.

a. How many segments has Host A sent in total and how many ACKs has Host B sent in total? What are their sequence numbers? Answer this question for all three protocols.

b. If the timeout values for all three protocol are much longer than 5 RTT, then which protocol successfully delivers all five data segments in shortest time interval?

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