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Interior Gateway Protocol Definition: Interior Gateway Protocol (IGP) is a type of routing protocol used to exchange routing information within an autonomous system.
Interior Gateway Protocol (IGP) is a type of routing protocol used within autonomous systems to exchange routing information between routers. IGPs are utilized to determine the best paths for forwarding data packets within a network based on various factors such as network topology, link costs, and routing metrics. Popular examples of IGPs include Routing Information Protocol (RIP), Open Shortest Path First (OSPF), and Enhanced Interior Gateway Routing Protocol (EIGRP).