ALM-303046663 The PD classes are invalid

POE/4/PDINVALIDCLASS: OID [OID] PD with invalid IEEE class and power denied.(IfIndex=[INTEGER], Interface="[OCTET]")

The system detects that the PD class is invalid.

Alarm ID	Alarm Severity	Alarm Type
303046663	Warning	Communication alarm

Name	Meaning
OID	Indicates the MIB object ID of the alarm.
IfIndex	Indicates the interface index.
Interface	Indicates the interface name.

Services are not affected.

Cause 1:

The PD may not comply with standards, whereas the switch supports 802.3af and 802.3at. In this case, the PD class cannot be identified by the switch.

Cause 2:

The PD hardware is faulty.

Cause 3:

The PoE chip of the device is faulty.

Run the poe legacy enable command on the interface to enable compatibility detection and then check whether the alarm is cleared.

If so, the alarm handling ends.

If not, go to step 2.
Replace the PD with a standard PD and then check whether the alarm is cleared.

If so, the alarm handling ends.

If not, collect alarm information and configuration information, and then contact technical support personnel.