This object indicates the status of this entry. other(0) - this entry is currently in use but the conditions under which it will remain so differ from the following values. valid(1) - this value to indicate this entry is currently in used. invalid(2) - write this value to the corresponding entry, the whole entry will be removed. Since the order of entry shall be re-order while it has been deleted. To re-freshed the whole table is recommended for new index. create(3) - write this value to indicate that the new MAC address will be added after next writing MAC address to that new entry. The adding action will be taken on the index that grater than 1.