LINK_STATE_UNKNOWN
case LINK_STATE_UNKNOWN:
if (ifi->ifi_link_state != LINK_STATE_UNKNOWN)
case LINK_STATE_UNKNOWN:
if_link_state_change(ifp, LINK_STATE_UNKNOWN);
link = LINK_STATE_UNKNOWN;
((_s) >= LINK_STATE_UP || (_s) == LINK_STATE_UNKNOWN)
sc->sc_link_state = LINK_STATE_UNKNOWN;
case LINK_STATE_UNKNOWN:
case LINK_STATE_UNKNOWN:
ifp->if_link_state == LINK_STATE_UNKNOWN);
state = LINK_STATE_UNKNOWN;
ifp->if_link_state = LINK_STATE_UNKNOWN;
{ 0, LINK_STATE_UNKNOWN, "unknown" }, \
if (ifs->if_link_state == LINK_STATE_UNKNOWN)
link_state = LINK_STATE_UNKNOWN;
if_link_state_change(ifp, LINK_STATE_UNKNOWN);
ifp->if_link_state = LINK_STATE_UNKNOWN;