Chapter 3 Configuring Open Shortest Path First (OSPF)

Configuring OSPF on a CSS IP Interface

Optionally, you can define any of the following:

The network cost for the route by including the metric option. Enter a number from 1 to 16,777,215. The default is 1.

A 32-bit tag value to advertise each external route by including the tag option. The 32-bit tag value is not used by the OSPF protocol itself. You can use the tag value to communicate information between AS boundary routers.

The advertised routes as ASE type1 by including the type1 option. By default, the type is ASE type2. The difference between type1 and type2 is how the cost is calculated. For a type2 ASE, only the external cost (metric) is considered when comparing multiple paths to the same destination. For type1 ASE, the combination of the external cost and the cost to reach the ASBR is used.

For example:

(config)# ospf redistribute rip metric 3 type1

To stop advertising the RIP routes via OSPF, enter:

(config)# no ospf redistribute rip

Configuring OSPF on a CSS IP Interface

When you configure a CSS IP interface as an OSPF interface, you define its behavior and role within the OSPF routing domain. This section includes the following topics:

Configuring the CSS IP Interface as an OSPF Interface

Assigning an OSPF Area to the Interface

Enabling OSPF on the Interface

Configuring the Interface Attributes

 

Cisco Content Services Switch Routing and Bridging Configuration Guide

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OL-4580-01

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Cisco Systems OL-4580-01 manual Configuring Ospf on a CSS IP Interface, To stop advertising the RIP routes via OSPF, enter