Sexy young live teen chat - Distributed cache updating for dynamic source routing

Each node, upon receiving a Route Request packet, rebroadcasts the packet to its neighbors if it has not forwarded it already, provided that the node is not the destination node and that the packet’s time to live (TTL) counter has not been exceeded.Each Route Request carries a sequence number generated by the source node and the path it has traversed.

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In a reactive (on-demand) approach such as this, a route is established only when it is required and hence the need to find routes to all other nodes in the network as required by the table-driven approach is eliminated.

The intermediate nodes also utilize the route cache information efficiently to reduce the control overhead.

The connection setup delay is higher than in table-driven protocols.

Even though the protocol performs well in static and low-mobility environments, the performance degrades rapidly with increasing mobility.

The major difference between this and the other on-demand routing protocols is that it is beacon-less and hence does not require periodic hello packet (beacon) transmissions, which are used by a node to inform its neighbors of its presence.

The basic approach of this protocol (and all other on-demand routing protocols) during the route construction phase is to establish a route by flooding Route Request packets in the network.

A destination node, after receiving the first Route Request packet, replies to the source node through the reverse path the Route Request packet had traversed.

Nodes can also learn about the neighboring routes traversed by data packets if operated in the promiscuous mode (the mode of operation in which a node can receive the packets that are neither broadcast nor addressed to itself).

The erroneous hop will be removed from the node's route cache; all routes containing the hop are truncated at that point.

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