The RowStatus interlock for creation and deletion of row entries. The device must not allow the NMS to set RowStatus to notInService(2). The device must assign a RowStatus of notInService(2) to any new row entry created with a non-unique, routerLanAddrClientID value. The device must assign a RowStatus of notReady(3) to any new row entry created without a routerLanAddrClientID. The device will prevent modification of this table's columns and return an inconsistentValue error, if the NMS attempts to make such modifications while the RowStatus is active(1).