Your installers have installed IP phones on your Brocade FCX HPOE switch. You use show inline
power and notice that there are 802.3at devices in the table.

Why should you be concerned?

A.
They are legacy devices that need to be configured as such.

B.
These devices can consume up to 30 watts of power and you must monitor power
consumption.

C.
These devices must have FDP enabled on the ports.

D.
These devices do not support LLDP-MED.