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Data segments in the shortest time interval

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Compare GBN, SR and TCP (no delayed ACK). Assume that the timeout values for all three protocols are sufficiently long such that 7 consecutive data segments and the 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 7 data segments to Host B, and the third segment (sent from A) is lost. In the end, all 7 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 protocols are much longer than 7 RTT, then which protocol successfully delivers all 7 data segments in the shortest time interval?

Reference no: EM132347571

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