Introduction to Networking

Flow Control Protocols Numerical

Numerical flow control protocols are mainly required to calculate efficiency. Before efficiency calculation, let’s learn all the basic factors in protocols.

Stop and Wait

Go Back N Selective Repeat
Only one frame can transmit at a time Multiple frame transmissions at a time Multiple frame transmissions at a time
Sender window size =1 Sender window size = 2K-1 Sender window size = 2K-1
Receiver window size =1 Receiver window size =1 Receiver window size = 2K-1

Note: K is the number of bits to represent the window size.

To find the Efficiency of any protocol, use any of the following formula