Ericsson ECN330 - Page 1076

Command Line Interface
1070 1553-KDU 137 365 Uen D 2006-06-16
• Also, note that unlike stub areas, all Type-3 summary LSAs are always
imported into NSSAs to ensure that internal routes are always chosen
over Type-7 NSSA external routes.
• This router supports up to 16 total areas (either normal transit areas,
stubs, or NSSAs).
Example
This example creates a stub area 10.3.0.0, and assigns all interfaces with class
B addresses 10.3.x.x to the NSSA. It also instructs the router to generate
external LSAs into the NSSA when it is an NSSA ABR or NSSA ASBR.
7.26.31 area virtual-link
This command defines a virtual link. To remove a virtual link, use the no form
with no optional keywords. To restore the default value for an attribute, use the
no form with the required keyword.
Syntax
[no] area <area-id> virtual-link <router-id>
[authentication [message-digest | null ]] [hello-
interval <seconds>] [retransmit-interval <seconds>]
[transmit-delay <seconds>] [dead-interval
<seconds>] [[authentication-key <key>] | [message-
digest-key <key-id> md5 <key>]]
no area <area-id>
• area-id - Identifies the transit area for the virtual link.
(The area ID must be in the form of an IP address.)
• router-id - Router ID of the virtual link neighbor. This must
be an Area Border Router (ABR) that is adjacent to both the
backbone and the transit area at the other end of the virtual link.
Console(config-router)#area 10.3.0.0 nssa default-information-
originate
Console(config-router)#network 10.3.0.0 255.255.0.0 area 10.2.0.0
Console(config-router)#