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Circuit Switching

Consider the transfer of a file in a circuit switched network. The file is L bits long, and the transmission passes over n, n 2 1, links. Each link transmits at a data rate of R bps. To establish a circuit over the links, a delay of des seconds is incurred. (a) Give an expression of the file transfer time, denoted Tcs (b) Obtain the numerical value of Tos when L-40 Mbits, n-10 links, R CS. 10 Mbits/sec, and des 750 milliseconds.

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delay s d L : lo mb - Sec U1.5 Sec

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