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4. Use the display current-configuration configuration ospf command to display information about
area configuration. If more than two areas are configured, at least one area is connected to the
backbone.
5. In a stub area, all routers attached are configured with the stub command. In an NSSA area, all
routers attached are configured with the nssa command.
6. If a virtual link is configured, use the display ospf vlink command to verify the state of the virtual
link.