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Configuring Routing 357
The following is an example of the CLI commands:
Console (config)# router ospf enable
Console (config)# router ospf area 7.7.7.7 stub
Console (config)# router ospf area 192.168.3.1 default-cost 10000
Configuring the OSPF Virtual Links
OSPF requires all areas to be linked through a backbone area. However, if an area is not connected
to a backbone, you can connect two area border routers through a virtual link. Virtual links are
defined by configuring a virtual neighbor. Virtual links cannot be configured through a stub area.
Define virtual links on the
Virtual Links
page. To display the
Virtual Links
page, click
Router
→
OSPF
→
Virtual Links
in the tree view.
Figure 8-12. Virtual Links Page
Area ID
— The OSPF interface area ID of the transit area.
Virtual Neighbor
— Router ID of the virtual neighbor.
Virtual Neighbor State
— State of the virtual neighbor.