Chapter 8. Understanding Open Shortest Path First (OSPF)
This chapter covers the following key topics about the Open Shortest Path First (OSPF) protocol:
OSPF is a link-state interior gateway protocol designed for a large complex network. An IETF standard, OSPF is widely deployed in many large networks. Development began in 1987, and OSPF Version 2 was established in 1991 with RFC 1247. The goal was to have a link-state protocol that is more efficient and scalable than RIP. RFC 2328 (April 1998) is the latest revision to OSPF Version 2.
OSPF runs on top of IP and uses protocol number 89, just as TCP runs on top of IP and uses protocol number 6. OSPF doesn’t ...
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