A $3200-$bit message must be transmitted through a three$-$hop Wide Area Network

$($WAN$).$ Each network link has a maximum capacity of $9600$ bps$.$ A fixed packet size of $128$ bytes is used to send data over the network. Assuming a propagation delay of $0\mathrm{.}002$ s per hop and a call setup time of $0\mathrm{.}1$ s$,$

$($i$)$ calculate end$-$to$-$end delay incur to transmit the whole message on circuit switched network.

$($ii$)$ calculate end$-$to$-$end delay incur to transmit the whole message on virtual circuit packet switching network.