Technical information

Cuda 12000 IP Access Switch CLI Reference Guide
ospf-vi 303
ospf-vi
Configures OSPF virtual interfaces. OSPF requires that all areas be attached to the OSPF backbone
area (area 0.0.0.0). However, you may encounter situations in which you cannot connect an
OSPF area directly to the backbone. If your Cuda 12000 is an area border router between one
area that is physically connected to the OSPF backbone and one area that is not (the
non-contiguous area), you can create a virtual interface on your Cuda 12000 to connect the
non-contiguous area to the OSPF backbone.
Before you configure an OSPF virtual interface, make sure that you have configured the OSPF
backbone area (area 0).
The no form of the command, when specified with no arguments, removes the virtual interface.
When specified with the authentication argument, the no form of the command disables
authentication on the interface, regardless of authentication type (MD5 or simple password).
Mode
router:ospf
Syntax
ospf-vi <transit-area-id> <neighbor-router-id>
[{enable | disable}] [dead-interval <seconds>] [hello-interval
<seconds>] [retransmit-interval <seconds>] [transit-delay <seconds>]
[authentication {{md5 | password} | {key-id <id> key <key> | key
<key>}}]
no ospf-vi <transit-area-id> <neighbor-router-id> [authentication]
Arguments
<transit-area-id> Specifies the area ID of the transit area, which is the area that
connects the non-contiguous area to the backbone.
<neighbor-router-id> Specifies the router ID of the OSPF neighbor that acts as the Area
Border Router between the transit area and the backbone.
{enable | disable} Enables or disables the virtual interface.
dead-interval <seconds> Specifies the dead interval, which is the interval, in seconds,
during which hello packets must not be seen before neighbors
declare the router down. You must set this value the same for all
participating OSPF routers on the virtual interface. Valid range: 0
to 2147483647 seconds. The default is 40.