Consider the queuing delay in a router buffer. Let I denote traffic intensity; that is, I = La/R. Suppose that the queuing delay takes the form IL/R (1 – I) for I < 1.
a. Provide a formula for the total delay, that is, the queuing delay plus the transmission delay.
b. Plot the total delay as a function of L/R.
Total delay = Queuing delay + Transmission delay