6 area virtual-link – CANOGA PERKINS CanogaOS Command Reference User Manual

Page 245

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CanogaOS Command Line Reference

Revision 1.02

Proprietary & Confidential Canoga Pertkins Metro Ethernet Switches

Page 245 of 855

There are two stub area router configuration commands: the stub and

Default

-cost options of the

area router configuration command. In all routers attached to the stub area, the area should be
configured as a stub area using the stub keyword of the area command. Use the

Default

-cost

keyword only on an ABR attached to the stub area. The

Default

-cost keyword provides the metric for

the summary default route generated by the ABR into the stub area.
To further reduce the number of link-state advertisements (LSAs) sent into a stub area, you can
configure the no-summary keyword on the ABR to prevent it from sending summary LSAs (LSA type 3)
into the stub area.


Examples

The following example assigns a default cost of 20 to stub network 10.0.0.0:
interface eth-0-1
ip address 10.56.0.201/16
!
router ospf 201
network 10.0.0.0/8 area 10.0.0.0
area 10.0.0.0 stub
area 10.0.0.0 default-cost 20


Related Commands

area default-cost
area authentication

15.6 area virtual-link

To define an Open Shortest Path First (OSPF) virtual link, use the area virtual-link command in router
configuration mode. To remove a virtual link, use the no form of this command.


Command Syntax

area area-id virtual-link router-id [hello-interval seconds] [retransmit-interval seconds]
[transmit-delay seconds] [dead-interval seconds] [authentication] [authentication-key key-string]
[message-digest-key key-id md5 key-string]
no area area-id virtual-link router-id [hello-interval] [retransmit-interval] [transmit-delay
seconds
] [dead-interval] [authentication] [authentication-key] [message-digest-key key-id]

area-id

Area ID assigned to the transit area for the virtual link.
There is no default.

router-id

Router ID associated with the virtual link neighbor. There is
no default.

hello-interval seconds

(Optional) Time (in seconds) between the hello packets that
the router sends on an interface. The hello interval is an
unsigned integer value to be advertised in the hello packets.
The value must be the same for all routers and access

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