CCNP Enterprise Advanced Routing ENARSI 300-410 Official Cert Guide

Chapter 7. Advanced OSPF

This chapter covers the following topics:

• Link-State Advertisements: This section explains how Open Shortest Path First (OSPF) stores, communicates, and builds the topology from link-state advertisements (LSAs).

• OSPF Stubby Areas: This section explains the method OSPF provides for filtering external routes while still providing connectivity to them.

• OSPF Path Selection: This section explains how OSPF makes path selection choices for routes learned within the OSPF routing domain.

• Summarization of Routes: This section explains how network summarization works with OSPF.

• Discontiguous Network: This section demonstrates a discontiguous network and explains why it cannot distribute routes to all areas properly.

• Virtual Links: ...