A、The port must be put into forwarding state manually after root-inconsistent state has beencorrected

B、A Root Guard port receiving superior BPDU goes into a root-inconsistent state

C、A Root Guard port receiving inferior BPDU goes into a root-inconsistent state

D、While the port is in a root-inconsistent state no user data is sent across that port

E、The port returns to a forwarding state if inferior BPDUs stop

F、It should be applied to all switch ports