Managing Power over Ethernet (PoE)
Configuring Power over Ethernet Parameters
OmniSwitch 6850/6850E Series Hardware Users Guide
June 2011
page 5-5
Configuring Power over Ethernet Parameters
Power over Ethernet Defaults
The following table lists the defaults for PoE configuration:
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 (such as a 120W 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.
Parameter Description
Command(s)
Default Value/Comments
PoE operational status
lanpower start
or
lanpower stop
Disabled
Total power available to a port
lanpower power
See
Chapter 5, “Managing
Power over Ethernet (PoE).”
Total power available to an
entire slot
lanpower maxpower
See
Chapter 5, “Managing
Power over Ethernet (PoE).”
Power priority level for a port
lanpower priority
low
Capacitor detection method
lanpower capacitor-detection
Disabled
Priority disconnect status
lanpower priority-disconnect
Enabled
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
