1. CCNA 3 Chapter 3 Single-Area OSPF

2. Objectives Link-state routing protocol Single-area OSPF concepts
Single-area OSPF configuration

3. Overview of Link-State and Distance Vector Routing

4. Link-State Routing Features
Respond quickly to network changes.
Send triggered updates only when network change occurrs.
Send periodic updates known as link-state refreshes.
Use a hello mechanism to determine neighbors’ reachability.

5. How Routing Information Is Maintained

6. Link-State Routing Algorithms

7. Advantages and Disadvantages of Link-State Routing

8. Comparing Distance Vector and Link-State Routing

9. Single-Area OSPF Concepts

10. OSPF Overview
OSPF is becoming the preferred IGP protocol when compared with RIPv1 and RIPv2 because it is scalable.

11. OSPF Terminology

12. Comparing OSPF with Distance Vector Routing Protocols

13. Shortest Path Algorithm
The best path is the lowest-cost path.

14. OSPF Network Types

15. OSPF Hello Protocol

16. Steps in the Operation of OSPF

17. Single-Area OSPF Configuration

18. Configuring the OSPF Routing Process

19. Configuring the OSPF Routing Process

20. Configuring OSPF Loopback Address and Router Priority

21. Configuring Router Priority
The priorities can be set to any value from 0 to 255. A value of 0 prevents
that router from being elected. A router with the Highest OSPF priority will win the election for DR.

22. Modifying OSPF Cost Metric

23. Configuring OSPF Authentication

24. Configuring OSPF Timers

25. OSPF, Propagating a Default Route

26. Common OSPF Configuration Issues

27. Verifying OSPF Configuration
show ip protocol
show ip route
show ip ospf interface
shop ip ospf
show ip ospf neighbor detail
show ip ospf database

28. The debug and clear Commands for OSPF Verification