[Contents] [Prev] [Next] [Index] [Report an Error]

Configuring an OSPF Virtual Link

If any router on the backbone is not physically connected to the backbone itself, you must establish a virtual connection between that router and the backbone. You can establish a virtual connection between area border routers by configuring a OSPF virtual link.

To configure an OSPF virtual link, include the virtual-link statement when configuring the backbone area (area 0):




virtual-link neighbor-id router-id transit-area area-id;

To configure an OSPFv3 virtual link, include the virtual-link statement when configuring the backbone area (area 0):




virtual-link neighbor-id router-id transit-area area-id;

For a list of hierarchy levels at which you can include this statement, see the statement summary section for this statement.

Specify the router ID (as an IPv4 address) of the router at the other end of the virtual link. This router must be an area border router that is physically connected to the backbone. Also, specify the number of the area through which the virtual link transits.

For the virtual connection to work, you also must configure a link to the backbone area on the remote area border router (the router at the other end of the LSP).

[Contents] [Prev] [Next] [Index] [Report an Error]