Ericsson ECN330, User Manual

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Command Line Interface
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1553-KDU 137 365 Uen D 2006-06-16
7.13 Power over Ethernet Commands
The commands in this group control the power that can be delivered to EDA
devices through the ECN330’s ports.
The ECN330-switch’s power management enables total ECN330 power and
individual port power to be controlled within a configured power budget. Port
power can be automatically turned on and off for connected EDA devices and a
per-port power priority can be set so that the ECN330 never exceeds its
allocated power budget. When a device is connected to a ECN330 port, its
power requirements are detected by the ECN330-switch before power is
supplied. If the power required by a device exceeds the power budget of the port
or the whole ECN330, power is not supplied.
Ports can be set to one of three power priority levels, critical, high, or low. To
control power supply within the ECN330’s budget, ports set at critical or high
priority have power enabled in preference to those ports set at low priority. For
example, when a device is connected to a port set to critical priority, the ECN330
supplies the required power, if necessary by dropping power to ports set for a
lower priority. If power is dropped to some low-priority ports and later the power
demands on the ECN330 fall back within its budget, the dropped power is
automatically restored.
Table 81 Power Management Commands
Command Function Mode Page
power mainpower
maximum
allocation
Sets the maximum power available to all ECN330
ports GC 779
power inline
Turns power on and off for specific ports IC 780
power inline
maximum
allocation
Sets the maximum power available to specific
ECN330 ports IC 781
power inline
priority
Sets the priority for power supplied to specific ports IC 782