The actual state of each link in a bundle. The link is fully operational in the up(1) state, and not operational in the down(2) state. The starting(3) state is an inter- mediate state when the link is physically established but PPP or other link negotation has not finished yet. The loopbacked(4) state is entered when the PPP keepalive mechanism detects a loopbacked link. The dialing(5) state shows that a dialup link is in its link establishment phase, dialing. If there is no answer to the call, the link enters the retry-wait(6) state for biboPPPRetryTime seconds. After waiting that time either a call retry will occur, or the ifOperStatus will enter the blocked state, depending on the amount of retries already done (biboPPPLinkRetries) and the value of the biboPPPMaxRetries field.