A switching network has N $=2$ hops between two given end$-$devices, message length of L $=2000$ bits, data rate of B $=2048$bps on all links, fixed packet size of P $=1024$ bits including header of H $=16$ bits, call setup time of S$=0\mathrm{.}2$ seconds, and propagation delay per hop of D $=0\mathrm{.}004$ seconds. Compute the end$-$to$-$end delay for circuit switching, virtual circuit packet switching, and datagram packet switching. Assume that acknowledgments and processing delay at the nodes are negligible.