•The DSDV protocol requires each mobile node to advertise its own route table to all of its current neighbours.
•Since the nodes are mobile, the entries can change dynamically over time.
•The route advertisements should be made whenever there is any change in the neighbourhood or periodically.
•Each mobile node agrees to forward route advertising messages from other mobile nodes.
•This forwarding is necessary to send the advertisement messages all over the network.
•In other words, route advertisement messages help mobile nodes to get an overall picture of the topology of the network.
Route Table Entry Structure
•The route advertisement broadcast by each mobile node has the following information for each new route :
–The destination’s address
–The number of hops to the destination
–The sequence number of the information received from that destination. This is the original sequence number assigned by the destination.
•Since the nodes are mobile, the entries can change dynamically over time.
•The route advertisements should be made whenever there is any change in the neighbourhood or periodically.
•Each mobile node agrees to forward route advertising messages from other mobile nodes.
•This forwarding is necessary to send the advertisement messages all over the network.
•In other words, route advertisement messages help mobile nodes to get an overall picture of the topology of the network.
Route Table Entry Structure
•The route advertisement broadcast by each mobile node has the following information for each new route :
–The destination’s address
–The number of hops to the destination
–The sequence number of the information received from that destination. This is the original sequence number assigned by the destination.
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