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Chapter 11: Power Over Ethernet
218
Enabling and Disabling PoE
Enabling PoE on ports allows the switch to supply power to PDs
connected to the ports. In order for PDs to receive power, PoE must be
enabled on the ports. By default, PoE is enabled on all the ports on the
PoE switch.
The switch detects whether or not a network device connected to the port
is a valid PD. If the device is not a valid PD, the port functions as a regular
Ethernet port even when PoE is enabled on the port. The PoE feature
remains activated on the port, but no power is delivered to the device.
Disabling PoE on the port turns off the power supply to the port. You may
want to disable PoE on the ports used only for data traffic in order to
prevent them from unauthorized power use.
There are two ways to disable and enable PoE:
Globally: all the ports on the switch at a time.
Individually: on a port basis.
To enable PoE globally, use the SERVICE POWER-INLINE command in
the Global Configuration mode. See “SERVICE POWER-INLINE” on
page 245. The NO SERVICE POWER-INLINE command disables PoE on
all the ports on the switch. See “NO SERVICE POWER-INLINE” on
page 236.
To enable PoE on an individual port basis, use the POWER-INLINE
ENABLE command in the Port Interface mode. See “POWER-INLINE
ENABLE” on page 240. The NO POWER-INLINE command disables PoE
on a port. See “NO POWER-INLINE ENABLE” on page 232.
This example enables PoE globally:
awplus> enable
awplus# configure terminal
awplus(config)# service power-inline
This example disables PoE globally:
awplus> enable
awplus# configure terminal
awplus(config)# no service power-inline
This example enables PoE individually on port 6 and port 8:
awplus> enable
awplus# configure terminal
awplus(config)# interface port1.0.6,port1.0.8
awplus(config-if)# power-inline enable