Stop and Wait protocol Algorithm at sender(node A) (with initial condition SNEO 1) Accept packet from higher layer when available assign number sn to it 2) Transmit packet SN in frame with sequence SN 3 Wait for an error free frame from B if received and it contains rn>sn in the request#f field. set sn to rn and go to 1 if not received within given time, go to 2 Eytan modianoStop and Wait Protocol Algorithm at sender (node A) (with initial condition SN=0) 1) Accept packet from higher layer when available; assign number SN to it 2) Transmit packet SN in frame with sequence # SN 3) Wait for an error free frame from B i. if received and it contains RN>SN in the request # field, set SN to RN and go to 1 ii. if not received within given time, go to 2 Eyt an Modiano 6