![](/images/new-backgrounds/1299835/2998351083x1.webp)
Backup Designated Router - This router is itself the Backup Designated Router on the attached network. It will be promoted to Designated Router if the present Designated Router fails. The router establishes adjacencies to all other routers attached to the network. The Backup Designated Router performs slightly different functions during the Flooding Procedure, as compared to the Designated Router.
Other Designated Router - The interface is connected to a broadcast or NBMA network on which other routers have been selected to be the Designated Router and Backup Designated Router. The router attempts to form adjacencies to both the Designated Router and the Backup Designated Router.
Neighbor State - The state of the Virtual Neighbor Relationship.
Command Buttons
Configure Authentication - Display a new screen where you can select the authentication method for the virtual link.
Submit - Send the updated configuration to the switch. Configuration changes take effect immediately. These changes will not be retained across a power cycle unless a save is performed.
Delete - Removes the specified virtual link from the router configuration.