This Unsigned64 is an internal access-control propagation bitmask UCS Manager maintains on this IP pool object, not a value an admin sets directly. It encodes which organizational scopes are permitted to read or reference this pool as UCS propagates role-based-access-control state down the org tree, so its exact bits are meaningful to UCS Manager's internal RBAC engine rather than to a human troubleshooting the network. This field would only realistically be inspected by Cisco TAC while debugging an RBAC visibility issue, not during normal address-pool monitoring.