Question

1.      Suppose there is exactly one packet switch between a sending host and a receiving host. The transmission rates between the sending host and the switch and between the switch and the receiving host are R and R, respectively. If the switch uses store-and-forward packet switching, what is the total end-to-end delay to send a packet of length L? (Ignore queuing, propagation delay, and processing delay.)

Answer 1

R1= Transmission rates between the sending host and the switch

R2= Transmission rates between the switch and the receiving host

L= Packet of length

Therefore, total end-to-end delay to send a packet of length L=L/R1+L/R2