This project prototypes are protocol3 and protocol5 in chapter 3 the data link layer of textbook. You should implement the function from_physical_layer() and to_physical_layer() using UDP socket API. You should also implement other functions to make protocol3 and protocol5 runnable. Sender must display variable next_frame_to_send, ack_expected, s.seq. Receiver must display variable frame_expected. Sender will send 9 frames every 10 frames to simulate frame lose.
You must submit the following files:
The project design document: for example, flow chart and running screen display.
Source code and executable file
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