Routing Protocol Algorithms and Metrics
Another key differentiation of routing protocols is on the basis of the algorithms and metrics they use. An algorithm refers to a method that the protocol uses for determining the best route between any pair of networks, and for sharing routing information between routers. A metric is a measure of "cost" that is used to assess the efficiency of a particular route. Since internetworks can be quite complex, the algorithms and metrics of a protocol are very important, and they can be the determining factor in deciding that one protocol is superior to another.
There are two routing protocol algorithms that are most commonly encountered: distance vector and link state. There are also protocols that use a combination ...
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