Distance vector routing program

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Control System. Data Mining. Intra domain routing means routing inside the autonomous system i. The distance vector routing protocol considers the entire autonomous system as a graph , where routers are the nodes and the networks are the lines or paths connecting the nodes. Each path has some cost or distance associated with it which a datagram has to pay off to travel from one node to another.

The paths with smaller cost are more appealing and are preferred over the path with a larger cost to reach the destination. Each router in the system organizes this information in a distance-vector table or routing table. Every router advertises this distance vector routing table to its neighbouring routers only, after the regular intervals. Routers receiving this advertise use distance vector to update their routing table and calculate the shortest path through the network.

After updation, the routers send there updated distance-vector table to their neighbour routers and thus the routing table of every router is updated periodically. The distance vector routing protocol uses the basic principle of the Bellman-Ford Algorithm to identify the shortest path through the network.

As we have learned above, each path connecting the nodes is associated with the cost. So, to calculate the shortest distance follow the following steps:.