Configuring OSPF

Configuring OSPF
Configuring OSPF is a simple task. There are many options that are allowed within OSPF, such
as statically configuring neighbors, creating a virtual link between an area that is not physically
connected to Area 0, neighbor/adjacency encryption, and many more. The following sections
describe how to configure OSPF in different environments.
Enabling OSPF is common for all implementations of OSPF; the difference comes when you
configure parameters to make OSPF behave in the desired fashion. We’ll cover parameters for
NBMA as well.
The basic elements of OSPF configuration are:
 Enabling OSPF
 Configuring OSPF for different network types
 Configuring the OSPF area
 Route summarization
 Route redistribution (covered in detail in Chapter 10, “Route Optimization”)
 Interface parameters
We’ll start with basic configuration of OSPF and then introduce commands relating to
NBMA, as well as the methods and commands used to verify proper configuration and operation
of OSPF.