Chapter3 Configuring Open Shortest Path First
Configuring OSPF on a CSS IP Interface
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Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-8241-02
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