Exercise 2 (25 points) A factor in the delay of a store-and-forward packet-switching system is how long it takes to store and forward a packet through a switch (router (L3 switch) or L2 switch). The objective of this exercise is to investigate the impact of the switch time on the overall delivery delay of a packet. The switch time is 10 sec. Consider a packet P sent from Auburn University (AU) to Boston University (www.bu.edu) (about 2,000 kms) over a copper line. Assume the propagation speed in copper to be 2/3 the speed of light. a) What is the propagation time for Packet P? b) Provide the number of switches (routers) between a computer at Auburn University and a computer at the destination. Provide the answer and do not forget to write how you found the answer. c) Assuming that there are 10 switches between AU and the destination, what is the ratio of the switch time to the propagation time? Is the switching time a major component in the total delivery time? d) How many switches should there be between AU and the destination such that the switch time is equal to the propagation time? Exercise 2 (25 points) A factor in the delay of a store-and-forward packet-switching system is how long it takes to store and forward a packet through a switch (router (L3 switch) or L2 switch). The objective of this exercise is to investigate the impact of the switch time on the overall delivery delay of a packet. The switch time is 10 sec. Consider a packet P sent from Auburn University (AU) to Boston University (www.bu.edu) (about 2,000 kms) over a copper line. Assume the propagation speed in copper to be 2/3 the speed of light. a) What is the propagation time for Packet P? b) Provide the number of switches (routers) between a computer at Auburn University and a computer at the destination. Provide the answer and do not forget to write how you found the answer. c) Assuming that there are 10 switches between AU and the destination, what is the ratio of the switch time to the propagation time? Is the switching time a major component in the total delivery time? d) How many switches should there be between AU and the destination such that the switch time is equal to the propagation time