Question

Router R has the table shown below listing five destinations A-E, and three neighbor routers S, T, U. It updates its table using the usual distance-vector algorithm, where dist is the distance in hops.

Original table:

net	dist	nexthop
A	5	S
B	4	U
C	6	T
D	7	T
E	8	S

Suppose R receives the table below as its next distance-vector report from neighbor S.

net	dist
A	4
B	3
C	4
D	7
E	9
F	3

Give R’s updated table and a brief explanation of each change. Remember that the report's distances are from S; the distance from R is increased by 1. In case of ties, do not change the table. Possible explanations include:

no change/same route; no change/other route same length; no change/other route longer;
new route is shorter; next_hop reports length increase; new destination

It may be easiest to copy the table below, paste it into the Sakai answer box with richtext enabled, and then fill in the table there.

R’s table after this update from S:

net	dist	next_hop	explanation
A
B
C
D
E
F please provide a write answer for above Question

Answer 1

/* Below is your required updated table*/

net	dist	next_hop	explanation
A	4	S	new route is shorter
B	3	S	new route is shorter
C	4	S	new route is shorter
D	7	T	no change/other route same length
E	8	S	other route longer
F	3	S	new route added