$2$ of $2$

$$ The processing delay is negligible.

$$ Each time one of Host $1$s packets arrive at Router $1,3$ packets $($from other hosts connecting through

the same router$)$ arrive at the same time. Assume the buffers are infinite $($no lost packets$).$

$$ When needed, the setup delay is $5$microseconds.

a$.$ Sketch the network topology.

b$.$ Calculate the total delay for: $($i$)$ Circuit$-$switched network, $($ii$)$ Packet$-$switched network, $($iii$)$

Virtual$-$circuit switched network