Distributed cache updating using dynamic source routing protocol

02-Jun-2015 01:27 by 8 Comments

Distributed cache updating using dynamic source routing protocol - 1 on 1 webcams for girls for free

This route cache is also used during the route construction phase.

Each Route Request carries a sequence number generated by the source node and the path it has traversed.

It has only two major phases, which are Route Discovery and Route Maintenance.

Route Reply would only be generated if the message has reached the intended destination node (route record which is initially contained in Route Request would be inserted into the Route Reply).

Otherwise, the node will reverse the route based on the route record in the Route Request message header (this requires that all links are symmetric).

In the event of fatal transmission, the Route Maintenance Phase is initiated whereby the Route Error packets are generated at a node.

When it has data packets to be sent to that destination, it initiates a Route Request packet.

This Route Request is flooded throughout the network.

To return the Route Reply, the destination node must have a route to the source node.

If the route is in the Destination Node's route cache, the route would be used.

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 disadvantage of this protocol is that the route maintenance mechanism does not locally repair a broken link.

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