Consider the use of the go-back-n protocol where n=3 for error control for communication from A to B. A packet from A to B, and an ACK from B to A are received in error.

Consider the use of the go-back-n protocol where n-3 for error control for c B. A packet from A to B, and an ACK from B to A are received in error from A to (a) (12 pt) Indicate the sequence number (SN) for packets from A to B, the request number (RN) for packets from B to A, the times and SN of the accepted packets at B, and the windows kept at A in the following figure. (The windows specify the range of sequence # of packets that the sender is allowed to send, e.g., [0, 21 means the sender can send from packet #0 to #2.) Timeout for Window [0,2] [, 2] [2.2] 0 SN at Node A ACK I ACK 1 0 RN at Node B (b) (4 pt.) Suppose packets are transmitted in error from A to B with a probability of 0.01 Estimate the throughput of this go-back-3 protocol, assuming that the round trip delay is small compared to the transmission delay Hint: let a = propagation timetransmission time. When a