Question

Station a needs to send a message consisting of 9 packets to station b using a sliding window (window size 3) and go-back-n error control strategy. all packets are ready and immediately available for transmission. if every 5th packet that a transmits gets lost (but no acks from b ever get lost), then what is the number of packets that a will transmit for sending the message to b?

Answer 1

Station A uses 32 byte packets to transmit messages to Station B using a sliding window protocol. The round trip delay between A and B is 80 milliseconds and the bottleneck bandwidth on the path between A and B is 128 kbps.



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