Chapter 16. OSPFv3
Open Shortest Path First (OSPF) is a link-state routing protocol that was developed as a replacement for the distance-vector routing protocol Routing Information Protocol (RIP). RIP was an acceptable routing protocol in the early days of networking, but its reliance on a limited hop count as the only metric for choosing the best route quickly became unacceptable in larger networks that needed a more robust routing solution. OSPF is a classless routing protocol that uses the concept of areas for scalability.
In 1989, the specifications for OSPFv1 were published in RFC 1131, The OSPF Specification. In 1991, John Moy introduced OSPFv2 in RFC 1247, OSPF Version 2. OSPFv2 offered significant technical improvements over OSPFv1. Both ...
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