Chapter 8

Troubleshooting Open Shortest Path First (OSPF)

This chapter covers the following topics:

Open Shortest Path First (OSPF) is a link-state routing protocol that provides every router with a complete map for all destination networks. Every router in the network calculates the best, shortest, loop-free paths using this complete map of the network.

This chapter focuses on identifying and troubleshooting issues that are caused with forming OSPF neighbor adjacency, path selection, and missing routes.

OSPF Fundamentals

OSPF advertises link-state advertisements (LSA) that contain the link state and metric to neighboring ...

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