A.True

B.False

A.igmp program

B.Multicast VLAN

C.igmp profile

D.igmp user

A.If it is an ASL board, it needs to be added manually, if it is an A32 board, it is automatically discovered

B.If it is an A32 board, it needs to be added manually, if it is an ASL board, it is automatically discovered

C.Must be added manually

D.Automatic discovery

A.data link layer

B.Physical layer

C.Network layer

D.Transport layer

A.Other ONTs under the same PON port are disconnected

B.All business is normal, no impact

C.Other ONTs under the entire OLT are disconnected

D.All of the above are possible