The variable nsVrOspfAreaSummary controls the im-
port of summary LSAs into stub areas. It has
no effect on other areas.
If it is noAreaSummary, the router will neither
originate nor propagate summary LSAs into the
stub area. It will rely entirely on its de-
fault route.
If it is sendAreaSummary, the router will both
summarize and propagate summary LSAs.