# Computer Network Routing Protocols Set Distance Vector Routing

This post categorized under Vector and posted on June 16th, 2019.

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Computer Network Routing Protocols Set 1 (Distance Vector Routing) A distance-vector routing (DVR) protocol requires that a router inform its neighbors of topology changes periodically. Historically known as the old ARPANET routing algorithm (or known as Bellman-Ford algorithm).Unfortunately if the distance vector sent to A is lost or if A sends its own distance vector ( ) at the same time as D sends its distance vector D updates its routing table to use the shorter routes advertised by A towards B C and E. After some time D sends a new distance vector .Distance Vector Routing Algorithm. The Distance vector algorithm is iterative asynchronous and distributed. Distributed It is distributed in that each node receives information from one or more of its directly attached neighbors performs calculation and then distributes the result back to its neighbors.

The distance-vector routing Protocol is a type of algorithm used by routing protocols to discover routes on an interconnected network. The primary distance-vector routing protocol algorithm is the Bellman-Ford algorithm.Distance Vector Routing It is a dynamic routing algorithm in which each router computes distance between itself and each possible destination i.e. its immediate neighbors. The router share its knowledge about the whole network to its neighbors and accordingly updates table based on its neighbors.Distance Vector Routing Distance vector algorithms use the Bellman- Ford algorithm. Distance vector algorithms are examples of dynamic routing protocols. Algorithms allow each device in the network to automatically build and maintain a local routing table or matrix.

A few routing protocols (called link state protocols) enable a router to build and track a full map of all network links in a region while others (called distance vector protocols) allow routers to work with less information about the network area.