3Com 3C17203 - SuperStack 3 Switch 4400, Implementation Manual

Page: 118 / 153

118 C
HAPTER
12: P
OWER
M
ANAGEMENT AND
C
ONTROL
Monitoring Power
Usage using the
Web Interface
The Switch keeps statistics on the power usage of each port. To view the
Power Usage for a port:
1 Log into the Web interface.
2 From the Device View , select Physical Interface > Power > Detail . The PoE
Detail screen will be displayed.
3 Select the port you wish to examine from the drop-down list. The
following information will be displayed:
■
Power Mode or Profile Name — displays Guaranteed, Not Guaranteed
or the name of the profile selected.
■
State — displays Enabled or Disabled if the port is not delivering
power , or Active if the port is currently delivering power. Displays fault
information if the port is not supplying power due to limits of power
budget or another fault.
■
Average Power — displays the average power that has been supplied
to the device since the meter was last reset. If a device had been
switched off for part of the time, it will register a lower average.
■
Peak Power — displays the most power supplied to the device since
the meter was last reset.
■
Current Power — displays the power currently being supplied to the
device.
Table 14 Port Status and Port Packet LEDs (Power over Ethernet information)
LED Status Meaning
Port Status LED
Off No Power over Ethernet device is present.
Green Power is being supplied from this port.
Flashing Green The power budget for Switch or port has been exceeded.
See
“Planning Power Budgets” on page 114 .
Yellow Power over Ethernet error. No power is supplied. Check
your Power over Ethernet device.
Port Packet LED
Off The port is functioning correctly
Yellow The port has failed internal test. The port is unable to
supply power, but may still function correctly as an
unpowered Ethernet port. Power cycle the switch. If the
problem persists contact your hardware supplier.