Answer to Question #319231 in Computer Networks for aadya

Question

Compare the Go-back N protocol with the rest of the protocols for effective frame transmission in Data link Layer detailed summary?

Answer 1

1. In Go-Back-N if a sent frame is found suspected or damaged then all the frames are retransmitted till the last packet.In Selective Repeat, only the suspected or damaged frames are retransmitted.

2.In Go-back N Sender Window is of size N. In Selective Repeat Sender Window size is same as N.

3.In Go-back N Receiver Window Size is 1. In Selective Repeat Receiver Window Size is N.

4. In terms of complexity Go-Back-N is easier to implement.In Selective Repeat, receiver window needs to sort the frames.

5.In Go-back N Acknowledgement type is cumulative. In Selective Repeat Acknowledgement type is individual.