What is DVRP (Distance Vector Routing Protocol)?

A distance-vector routing (DVR) protocol requires that a router give signal to its neighbors regarding topology changes intermittently. Distance-vector routing protocols examine the distance by the quantity of routers a packet has to pass, one router counts as one hop. Also generally called as the old ARPANET routing algorithm. A distance-vector routing protocol in information networks decides the best route for information packets dependent on distance.