Managing Power over Ethernet (PoE) Power over Ethernet Budget
OmniSwitch 6465 Hardware Users Guide December 2019 page 4-5
Viewing PoE Status
To view current PoE status and settings, use the show lanpower slot command:
Port Maximum(mW) Actual Used(mW) Status Priority On/Off Class Type
----+-----------+---------------+-----------+---------+--------+-------+----------
1 60000 0 Powered Off Low OFF .
2 30000 0 Powered Off Low OFF .
3 60000 0 Powered Off Low OFF .
4 30000 0 Powered Off Low OFF .
ChassisId 1 Slot 1 Max Watts 45
0 Watts Actual Power Consumed
0 Watts Total Power Budget Used
45 Watts Total Power Budget Available
1 Power Supply Available
'*' appending port maxpower indicates 4pair port operating in 2pair mode
Understanding and Modifying the Default Settings
The sections below provide information on each of the key components within the Power over Ethernet
software. They include information on PoE-related CLI commands. For detailed information on PoE-
related commands, refer to the OmniSwitch CLI Reference Guide.
Note. PoE units support different wattage power supplies. If unlike power supplies are mixed or if an
unsupported power supply is used, a console message and a trap are generated.
PoE Class Detection
Powered devices can be classified into different classes as shown in the table below. Class detection
allows for automatic maximum power adjustment based on the power class detected. This will prevent the
switch from delivering more than the maximum power allowed based on a device’s class.
During class detection, the switch will allocate the maximum amount of power allowed based on the class
detected. Once powered, if the device uses less than the maximum, the remaining power will be made
available for other devices.
Although class-detection is disabled by default, the switch still provides power to incoming PDs (if avail-
able in the power budget). However, to strictly enforce class detection as specified in the 802.3at stan-
dard, class detection must be enabled using the lanpower slot class-detection command.
Enabling class detection will reset all PoE ports on the chassis.
Class
Usage
Classification
Current (mA)
Power Range
(Watts)
Class Description
0 Default 0-4 0.44-30.00 Unimplemented
1 Optional 9-12 0.44-3.84 Very Low Power
2 Optional 17-20 3.84-6.49 Low Power
3 Optional 26-30 6.49-12.95 Mid Power
4 Optional 36-44 12.95- 30.00 High Power