mit and receive network traffic; it should&#13;
            change to dormant(5) if the interface is waiting for&#13;
            external actions (such as a serial line waiting for an&#13;
            incoming connection); it should remain in the down(2) state&#13;
            if and only if there is a fault that prevents it from going&#13;
            to the up(1) state; it should remain in the notPresent(6)&#13;
            state if the interface has missing (typically, hardware)&#13;
            compone