[3.6] NP 12 flights OSPF interfaces fourth day -OSPF state machine and DR and BDR election -2

OSPF interface state machine and the DR and BDR election

Interface state machine:

If after a broadcast network or a non-broadcast network interface UP, will> waiting (40s), from down- interface wait time is 40 seconds, wait for a DR BDR election / need 2WAY neighbor state machine into the future, will go to elections; if the election does not come out DR, waiting time in the waiting time of the timeout, he thinks he is DR

 

Is known from notes (Wiz)