Function if_up

freebsd/net/if.c:2318–2324

* Mark an interface up and notify protocols of * the transition. */

 * the transition.
 */
void
if_up(struct ifnet *ifp)
{

	if_route(ifp, IFF_UP, AF_UNSPEC);
	EVENTHANDLER_INVOKE(ifnet_event, ifp, IFNET_EVENT_UP);
}

/*
 * Flush an interface queue.