DVRP is one of the two major routing protocols for communications methods that use data packets sent over Internet Protocol (IP).
It requires a routing hardware to report the distances of various nodes within a network or IP topology in order to determine the best and most efficient routes to pass the packets.
DVRP tends to contemplate only two factors : Distance and Vector
Distance is the nothing but a number of steps or hosts, a message go through to reach its destination.
Vector describes the trajectory of the message over a given set of network nodes.