This applet animates the Go-Back-N protocol, covered in Section 3.4 of the text. In this applet, the window limits the sender to a maximum of five unacknowledged packets. Try clicking "Send New" multiple times and then clicking on "Stop Animation" before the first packet reaches the receiver. Then, click on the first packet and click on kill. After you resume the operation, what do you observe? Repeat the experiment, but this time let the first packet reach the receiver and then kill its acknowledgment. Finally, try putting more than five packets in the pipeline.
This applet was coded by Shamiul Azom. It was designed as a project work of course no. EEE 459/591, assigned by Prof. Martin Reisslein, Arizona State University.