A Gigabit Ethernet uses the CSMA$/$CD protocol and operates at B $=1$ Gb$/$s speed. The length of the cable bus is L $=500$ m with one repeater in the middle. Assuming that the velocity of propagation of a signal through the cable is v $=2108$ m$/$s and that the additional one$-$way delay introduced by the repeater is $1\mathrm{.}0$s$.$