Classification of Routing Protocols

Classification of routing protocols

Although there are many types of routing protocols, three major classes are in widespread use on IP networks:

• Interior gateway protocols type 1, link-state routing protocols, such as OSPF and IS-IS

type 2, distance-vector routing protocols, such as Routing Information Protocol, RIPv2, IGRP.

• Exterior gateway protocols are routing protocols used on the Internet for exchanging routing information between Autonomous Systems, such as Border Gateway Protocol (BGP), Path Vector Routing Protocol. Exterior gateway protocols should not be confused with Exterior Gateway Protocol (EGP), an obsolete routing protocol.