Chapter 12
| Power over Ethernet Commands
– 376 –
Command Usage
â—† The switch automatically detects attached PoE devices by periodically
transmitting test voltages that over the Gigabit Ethernet copper-media ports.
When an IEEE 802.3af or 802.3at compatible device is plugged into one of these
ports, the powered device reflects the test voltage back to the switch, which
may then turn on the power to this device. When the power inline compatible
command is used, this switch can detect IEEE 802.3af or 802.3at compliant
devices and the more recent 802.3af non-compliant devices that also reflect
the test voltages back to the switch. It cannot detect other legacy devices that
do not reflect back the test voltages.
â—† For legacy devices to be supported by this switch, they must be able to accept
power over the data pairs connected to the 10/100/1000BASE-T ports.
Example
Console(config)#power inline compatible
Console(config)#end
Console#show power inline status
Unit: 1
Compatible mode : Enabled
Time Max Used
Interface Admin Range Oper Power Power Priority
--------- -------- -------- ---- -------- -------- --------
Eth 1/ 1 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 2 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 3 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 4 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 5 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 6 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 7 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 8 Enabled -- Off 34200 mW 0 mW Low
Eth 1/ 9 Enabled -- Off 34200 mW 0 mW Low
Eth 1/10 Enabled -- Off 34200 mW 0 mW Low
Eth 1/11 Enabled -- Off 34200 mW 0 mW Low
Eth 1/12 Enabled -- Off 34200 mW 0 mW Low
.
.
.
power inline This command instructs the switch to automatically detect if a PoE-compliant
device is connected to the specified port, and turn power on or off accordingly. Use
the no form to turn off power for a port.
Syntax
[no] power inline
Default Setting
Detection is enabled for PoE-compliant devices.
Command Mode
Interface Configuration (Ethernet ports 1-12/24)
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