The maximum number of non-default AS-external-LSA entries that can be stored in the link state database. If the value is -1, then there is no limit. When the number of non-default AS-external-LSAs in a router's link state database reaches ospfv3ExtAreaLsdbLimit, the router enters Overflow state. The router never holds more than ospfv3ExtAreaLsdbLimit non-default AS-external-LSAs in its database. ospfv3ExtAreaLsdbLimit MUST be set identically in all routers attached to the OSPFv3 backbone and/or any regular OSPFv3 area (i.e., OSPFv3 stub areas and not-so-stubby-areas (NSSAs) are excluded). This object is persistent, and when written, the entity SHOULD save the change to non-volatile storage.