user manual

3-13
Cisco Content Services Switch Routing and Bridging Configuration Guide
OL-4580-01
Chapter 3 Configuring Open Shortest Path First (OSPF)
Configuring OSPF on the CSS
Enabling OSPF
After you assign the router ID to the CSS, globally enable OSPF on the CSS. Use
the ospf enable command to enable OSPF. For example:
(config)# ospf enable
To disable OSPF, enter:
(config)# no ospf enable
Configuring an Area
By default, the CSS is configured to the backbone area automatically. The
backbone area has a reserved ID of 0.0.0.0. If the CSS is part of an area other than
the backbone area, assign the CSS to that area.
Use the ospf area command to assign an area. Enter the ID in dotted-decimal
notation (for examp
le, 0.0.0.1). Although an area ID has the same form as an
IP address, the area ID address space is its own distinct address space.
For example, if the CSS is in area 0.0.0.1, enter:
(config)# ospf area 0.0.0.1
If the CSS is in a stub area, include the stub option.
For example, if area 0.0.0.1 is a stub area, enter:
(config)# ospf area 0.0.0.1 stub
Optionally, for a stub area you can also:
• Set a metric for the default route advertised in the stub area.
• Propagate summary LSAs into the stub area.
To set a metric for the default route advertised in the stub area, include the
default-metric option. By default, the metric equals the smallest metric among
the interfaces to other areas. You can assign an integer from 1 to 16777215.
For example, to assign a metric of 200, enter:
(config)# ospf area 0.0.0.1 stub default-metric 200