OSPF Commands 1111ExampleThe 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.Syntaxareaarea-id virtual-linkrouter-id [authentication [message-digest |null]][hello-interval seconds] [retransmit-interval seconds] [transmit-delayseconds] [dead-interval seconds] [[authentication-keykey] | [message-digest-keykey-id md5 key]]no areaarea-id virtual-linkrouter-id [authentication [message-digest |null]][hello-interval] [retransmit-interval] [transmit-delay] [dead-interval][[authentication-key] | [message-digest-key]]Parameter DescriptionParameter Descriptionarea-id Identifies the OSPF stub area to configure. (Range: IP addressor decimal from 0-4294967295)router-id Valid IP address.authentication Specifies authentication type.message-digest Specifies that message-digest authentication is used.null No authentication is used. Overrides password or message-digest authentication if configured for the area.
