You work on a large distributed network that includes 30 Brocade MLXe series routers. One of
your MLXe routers has logged a series of TCN notifications.
What are two results? (Choose two.)

A.
The downstream bridge has sent a new BPDU, reporting an active topology change.

B.
The root bridge has sent a new BPDU, reporting an active configuration change.

C.
The root bridge has sent a new BPDU, reporting an active topology change.

D.
The downstream bridge has sent a new BPDU, reporting an active configuration change.