Administrator Guide

Layer 3 Routing Commands 1664
no area area-id stub no-summary
• area-id — Identifies the OSPF area to configure. (Range: IP address or
decimal from 0–4294967295)
Default Configuration
Disabled is the default configuration.
Command Mode
Router OSPF Configuration mode.
User Guidelines
This command creates a totally stubby area when used in conjunction with
the area stub command.
Example
The following example prevents the Summary LSA from being advertised
into the area 3 NSSA. Area 3 will be configured as a totally stubby area.
console(config-router)#area 3 stub
console(config-router)#area 3 stub no-summary
area virtual-link
Use the area virtual-link command in Router OSPF Configuration mode to
create the OSPF virtual interface for the specified area-id and neighbor
router. To remove the link, use the no form of the command. Use the optional
parameters to configure authentication, dead-interval, hello-interval,
retransmit-interval and transmit-delay. If the area has not been previously
created, it is created by this command. If the area already exists, the virtual-
link information is added or modified.
Syntax
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]]