For the network given in Figure $3\mathrm{.}51,$ give global distance$-$vector tables like those of Tables $3\mathrm{.}12$ and $3\mathrm{.}15$ when:

$($a$)$ each node knows only the distances to its immediate neighbors.

$($b$)$ each node has reported the information it had in the preceding step to its immediate neighbors.

$($c$)$ step $($b$)$ happens a second time.