The sender node sends a data packet to the receiver node. The stop & wait protocol is half-duplex whereas sliding window protocol is full-duplex. And, in stop & wait protocol sorting is not necessary, but in sliding window protocol, sorting may be or may not be necessary. Talking about the efficiency, the efficiency of stop &wait protocol is less, while the efficiency of the sliding window protocol is more than stop & wait protocol. ![]() On the other hand, in the sliding window protocol, the sender node keeps on sending frames to the receiver node without waiting for any feedback and it re-sends the frame which is/are damaged or suspected. The basic difference between them is that, in stop & wait the sender node sends one frame and then waits for the feedback from the receiver node. In the above diagram, we can see that there are two protocols, Stop & Wait and a sliding window. ![]() ![]() Flow control in computer networks is defined as the process of managing the rate of data transmission between two systems(nodes), this mechanism ensures that the rate of data (transmitted by the sender) is within the receiving capacity of the receiver node.
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