Configuring An Nssa Area; Configuring A Virtual Link - HP 6125G Configuration Manual

NOTE:
Virtual links cannot transit totally stub areas.

Configuring an NSSA area

A stub area cannot redistribute routes. Configure the area as an NSSA area to allow for route
redistribution by keeping other stub area characteristics.
To configure an NSSA area:
Step
1. Enter system view.
2. Enter OSPF view.
3. Enter area view.
4. Configure the area as an
NSSA area.
5. Specify a cost for the default
route advertised to the
NSSA area.

Configuring a virtual link

Non-backbone areas exchange routing information via the backbone area. Connectivity between the
backbone and non-backbone areas and within the backbone must be maintained.
If the required physical links are not available for this connectivity maintenance, you can configure virtual
links to resolve it.
To configure a virtual link:
Step
1. Enter system view.
2. Enter OSPF view.
3. Enter area view.
Command
system-view
ospf [ process-id | router-id
router-id | vpn-instance
vpn-instance-name ] *
area area-id
nssa [ default-route-advertise |
no-import-route | no-summary |
translate-always |
translator-stability-interval value ]
*
default-cost cost
Command
system-view
ospf [ process-id | router-id
router-id | vpn-instance
vpn-instance-name ] *
area area-id
69
Remarks
N/A
N/A
N/A
Not configured by default.
You must use the nssa command on
all the routers attached to an NSSA
area.
Optional.
1 by default.
The default-cost command is
available only on the ABR/ASBR of
an NSSA area.
Remarks
N/A
N/A
N/A