Answer the following questions on distance-vector routing on the network shown below. W Routing information to...
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Answer the following questions on distance-vector routing on the network shown below. W Routing information to x X y Z W time slot 4 3 distance, next hop distance, next hop distance, next hop Initially After first exchange Z 50 After second exchange (a) Assume that the initial time step corresponds to a step where all computed dis- tance vectors are stabilized. Fill in the values for this row. (b) Assume that poisoned reverse is used. What distance values to node x are exchanged among the remaining routers? (c) Now assume that immediately prior to the beginning of the first exchange (the second row) the link cost between x and y changes to 60. Redraw the table, and fill in the values in the second and third rows assuming poisoned reverse is used. Answer the following questions on distance-vector routing on the network shown below. W Routing information to x X y Z W time slot 4 3 distance, next hop distance, next hop distance, next hop Initially After first exchange Z 50 After second exchange (a) Assume that the initial time step corresponds to a step where all computed dis- tance vectors are stabilized. Fill in the values for this row. (b) Assume that poisoned reverse is used. What distance values to node x are exchanged among the remaining routers? (c) Now assume that immediately prior to the beginning of the first exchange (the second row) the link cost between x and y changes to 60. Redraw the table, and fill in the values in the second and third rows assuming poisoned reverse is used.
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