Define the following parameters for a switching network: N number of hops between two given end systems L = message length in bits B = data rate, in bits per second (bps), on all links P = fixed packet size, in bits H = overhead (header) bits per packet S = call setup time (circuit switching or virtual circuit) in seconds Tcall teardown time (circuit switching or virtual circuit) in seconds D = propagation delay per hop in seconds a

Define the following parameters for a switching network:

N number of hops between two given end systems

L = message length in bits

B = data rate, in bits per second (bps), on all links

P = fixed packet size, in bits

H = overhead (header) bits per packet

S = call setup time (circuit switching or virtual circuit) in seconds Tcall teardown time (circuit switching or virtual circuit) in seconds

D = propagation delay per hop in seconds

a. For N = 4, L = 3000, B = 9600, P = 1080, H = 80, S = 0.2, T = 0.02, D = 0.001,
compute the end-to-end delay for circuit switching, virtual circuit packet switching,
and datagram packet switching. Assume that there are no acknowledgments. Ignore
processing delay at the nodes. Assume no header for circuit switching.