Alcatel-Lucent OmniSwitch 6860E - PoE Class Detection; PoE Operational Status

Managing Power over Ethernet (PoE) Power over Ethernet Defaults
OmniSwitch 6860 Hardware Users Guide May 2014 page 5-5
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 OS6860 still provides power to incoming PDs (if
available in the power budget). However, to strictly enforce class detection as specified in the 802.3at
standard, class detection must be enabled using the lanpower slot class-detection command.
Enabling class detection will reset all PoE ports on the chassis.
PoE Operational Status
Enabling PoE
By default, Power over Ethernet is administratively enabled in the switch’s system software. However, in
order to physically activate PoE, you must issue the lanpower slot service command on a slot-by-slot
basis before any connected PDs will receive inline power.
To activate power to PoE-capable in a switch, enter the corresponding slot number only. For example:
-> lanpower slot 2/1 service start
If power to a particular port has been administratively disconnected, you can reactivate power to the port
using the lanpower port admin-state command. For example:
-> lanpower port 2/1/1-24 admin-state enable
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