Power over Ethernet Budget Managing Power over Ethernet (PoE)
page 4-6 OmniSwitch 6465 Hardware Users Guide December 2019
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 1/1 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 1/1/1-4 admin-state enable
Note. You cannot use the lanpower port admin-state command to initially activate PoE on a port. This
syntax is intended only to reactivate power to those that have been disconnected via the lanpower slot
service command. To initially activate PoE, you must use the lanpower slot service command as
described above.
Disabling PoE
To disable PoE on a particular port, use the lanpower port admin-state command. For example:
-> lanpower port 1/1/4 admin-state disable
To disable PoE for all PoE-capable ports in a slot, use the lanpower slot service command. For example:
-> lanpower slot 1/1 service stop
Configuring the Total Power Available to a Port
By default, each port is authorized by the system software to use up to a maximum amount of milliwatts to
power any attached device.
You can either increase or decrease this value based on the allowed ranges.
Increasing the total power available to an individual port may provide a more demanding Powered Device
(PD) with additional power required for operation. Decreasing the total power available to a port helps to
preserve inline power and assists in the overall management of the switch’s power budget.
To increase or decrease the total power available to an individual port, use the lanpower power command.
Since you are setting the power allowance for an individual port, you must specify chassis/slot/port values
in the command line. For example, the syntax
-> lanpower port 1/1/4 power 3000
reduces the power allowance on the port to 3000 milliwatts. This new value is now the maximum amount
of power the port can use to power any attached device (until the value is modified by the user).
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