nsVrOspfExitOverflowInterval 1.3.6.1.4.1.3224.18.5.1.1.13

The number of seconds that, after entering OverflowState, a router will attempt to leave OverflowState. This allows the router to again originate non-default AS-external-LSAs. When set to 0, the router will not leave Overflow- State until restarted.