Chapter 4: OSPF in a Single Area

Outline:

Chapter Review
Chapter Overview 
4.1 OSPF Overview
4.1.1 Issues Addressed by OSPF
4.1.2 OSPF Terminology
4.1.3 OSPF Packet Formats
4.2 Steps to OSPF Operation
4.2.1 List of Steps
4.2.2 Step 1: Establishing Router Adjacencies
4.2.3 Step 2: Electing the DR and BDR
4.2.4 Step 3: Discovering Routes
4.2.5 Step 4: Choosing Routes
4.2.6 Step 5: Maintaining Routing Information
4.3 Configuring OSPF on Routers within a Single Area
4.3.1 Basic Configuration Steps
4.3.2 Optional Configuration Commands
4.4 OSPF Over Non-Broadcast Networks
4.4.1 Non-Broadcast Multiple Access (NBMA) Overview
4.4.2 Configuring OSPF for Nonbroadcast Networks
4.4.3 Point-to-Point Subinterfaces
4.4.4 Point-to-MultiPoint Mode
4.4.5 Point-to-Multipoint Interfaces
4.4.6 Broadcast Interfaces
4.5 Verifying OSPF Operation
4.5.1 Show Commands
4.5.2 Clear and Debug Commands
Chapter Summary
Chapter Quiz