Introduction Components of Areas Selecting Area Identifiers Basic OSPF Components Special Links Configuring OSPF
Prerequisites to OSPF Startup
Basic OSPF Startup
Address Advertising Inside Areas Wildcard and Subnet Masks So, How are Network Statements Applied by IOS?
Costs and Metrics Tip Router Relationships
Hello Protocols and Interface Initialization
Neighbor and Adjacency Relationships Secondaries can be Primary Problems OSPF Protocol Mechanisms
OSPF Hello Processing Hello Packets must be ...sniff... of an acceptable sort.
Link State Advertisements
Designated Routers Becoming a DR or BDR DR and BDR Response to Failures
Database Initialization Remember, there can be Multiple Adjacencies.
Propagating Topology Changes Synchronization isn't always good. Improving Update Efficiency Dealing with Old LSAs
Stub Networks and Host Routes Convergence Time after Changes
Failure Detection on the Local Router Optical Hope
Change Propagation Media Issues
OSPF NBMA Networks Explicit NBMA OSPF Point-to-MultiPoint The Good, the Bad, and the Subinterface NBMA Timing Issues
OSPF Demand Networks Conclusion References