The following topics are covered in this appendix:
OSPF Route Summarization
Open Shortest Path First (OSPF) is a routing protocol developed for Internet Protocol (IP) networks by the Interior Gateway Protocol (IGP) working group of the Internet Engineering Task Force (IETF). OSPF was created in the mid-1980s because RIP (Routing Information Protocol) was (and is) incapable of serving large, heterogeneous internetworks.
OSPF has two primary characteristics:
The protocol is open, which means that its specification is in the public domain. The OSPF specification is based on Request For Comments (RFC) 1247.
OSPF is based on the SPF algorithm. The SPF algorithm in turn ...