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Q. Illustrate Go Back - N protocol?
Go Back - N
- Sender window size < 2m
- Receiver window size = 1
- Why the names go back- N?
- When the frame is spoilt the sender goes back and sends a set of frames starting from the last one ACKn'd
- The number of retransmitted frames is N
Fragmentation - Wireless environment is very noisy - Corrupt frames must be retransmitted - Large frames must be divided into smaller ones to increase efficiency
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