Layer 3 Routing Commands 1637• area-id — Identifies the OSPF area to configure. (Range: IP address ordecimal from 0–4294967295)Default ConfigurationDisabled is the default configuration.Command ModeRouter OSPF Configuration mode.User GuidelinesThis command has no user guidelines.ExampleThe following example prevents the Summary LSA from being advertisedinto the area 3 NSSA.console(config-router)#area 3 stub no-summaryarea virtual-linkUse the area virtual-link command in Router OSPF Configuration mode tocreate the OSPF virtual interface for the specified area-id and neighborrouter. To remove the link, use the no form of the command. Use the optionalparameters to configure authentication, dead-interval, hello-interval,retransmit-interval and transmit-delay. If the area has not been previouslycreated, it is created by this command. If the area already exists, the virtual-link information is added or modified.Syntaxarea area-id virtual-link router-id [authentication [message-digest | null]][hello-interval seconds] [retransmit-interval seconds] [transmit-delayseconds] [dead-interval seconds] [[authentication-key key] | [message-digest-key key-id md5 key]]no area area-id virtual-link router-id [authentication [message-digest | null]][hello-interval] [retransmit-interval] [transmit-delay] [dead-interval][[authentication-key] | [message-digest-key]]
