Being different from the DSDV which preserves a complete
routing table, AODV reduces the number of routing broadcasting by establishing the on-demand routing; it is an important improvement of AODV on DSDV.
Routing table: As shown in fig.2,
routing table at each node stores the list of reachable nodes and their pheromone value.
If none of the
routing tables involved in a particular routing session contained the location of the destination, by default the networks would simply hand the packets back and forth continuously and the packets would never reach their final destination.
The
routing table is "local" because it only suggests what the "best" next node is, given the goal node of the course.
Compact
routing tables for graphs of bounded genus.
This is accomplished by having immediate access to more than 90% of the Internet
routing table within the center.
He said: "We now have an `intelligent' scan that not only identifies where an item is but verifies it against a database, which in our case is a
routing table.
Before a geographic router can determine where to forward an incoming packet, it must first have a
routing table containing information about the network topology and geography.
Furthermore, it has a drawback of maintaining a
routing table in a zone of each node.
Route discovery occurs when a source node is request to communicate with a target node where a path is created and the route is saved in the
routing table. On the other hand, when a communication failure occurs or change of network topology, the routing maintenance procedure is activated.