Question $3$: B: $($A: $4,C$:$1,F$:$5$; It means the cost of the link from router $B$ to router $A$ is $4,$ and from

router $B$ to router $C$ is $1,$ and from router $B$ to router $F$ is $5.$

C: $($B: $3,$ D: $4,$ E: $3)$;

D: $($C: $3,F$:$4$;

E: $($A: $2,$ C: $2,$ F: $2)$;

F: $($B: $1,$ D: $2,$ E: $3).$

Note: In this network cost of the link from router A to router B is different than the cost of

the link from router B to router A$.$

$($a$)$ What are the Distance Vector $($DV$)$ tables of each router in $t=0?$ Follow the following

structure as depicted for router A$.$ No need to explain, just show the tables $(15$ points$).$

$($b$)$ What are the Distance Vector $($DV$)$ tables of each router in t$=1$ after exchanging the

tables between adjacent routers? No need to explain, just show the tables $(15$

points$).$

$($c$)$ What are the Distance Vector $($DV$)$ tables of each router in $t=2$ after exchanging the

tables between adjacent routers? No need to explain, just show the tables $(15$

points$).$

Consider the network in the above figure including $6$ routers. The cost of links between

routers are as follows.

A: $($B: $5,$ E: $4)$; It means the cost of the link from router $A$ to router $B$ is $5$ and from router $A$

to router $E$ is $4.$