H3C Technologies H3C S7500E Series Switches - Manual (Page 95)

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To do… Use the command… Remarks
Enter system view system-view —
Enter OSPF view
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
—
Enter area view area area-id —
Configure the area as an NSSA
area
nssa [ default-route-advertise |
no-import-route | no-summary |
translate-always |
translator-stability-interval
value ] *
Required
Not configured by default.
Specify a cost for the default
route advertised to the NSSA
area
default-cost cost
Optional
Defaults to 1.
z It is required to use the nssa command on all the routers attached to an NSSA area.
z Using the default-cost command only takes effect on the ABR/ASBR of an NSSA area.
Configuring a Virtual Link
Non-backbone areas exchange routing information via the backbone area. Therefore, connectivity
between the backbone and non-backbone areas and within the backbone itself must be maintained.
If necessary physical links are not available for this connectivity maintenance, you can configure virtual
links to solve it.
Follow these steps to configure a virtual link:
To do… Use the command… Remarks
Enter system view system-view —
Enter OSPF view
ospf [ process-id | router-id
router-id | vpn-instance
instance-name ] *
—
Enter area view area area-id —