Alcatel OS6855-24, Руководство пользователя по оборудованию

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Installing and Managing Power over Ethernet (PoE) Configuring Power over Ethernet Parameters
OmniSwitch 6855 Series Hardware Users Guide September 2011 page 6-7
To increase or decrease the total power available to a slot, use the lanpower maxpower command. Since
you are setting the power allowance for an individual slot, you must specify a slot number in the command
line. For example, the syntax
-> lanpower 1 maxpower 40
reduces the power allowance of the OmniSwitch 6850 Series slot 1 to 40 watts. This value is now the
maximum amount of power the slot can use to power all attached devices (until the value is modified by
the user).
Note. Changing the maximum power available to a slot or port does not reserve or immediately allocate
that power. These settings are only used for configuring a maximum amount of power that may be used,
any unused power is still available and remains a part of the overall PoE budget.
Setting Port Priority Levels
As not all Powered Devices (PDs) connected to the switch have the same priority within a customer
network setting, the OmniSwitch 6855 Series switches allow the user to specify priority levels on a port-
by-port basis. Priority levels include low, high, and critical. The default priority level for a port is low.
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Low. This default value is used for port(s) that have low-priority devices attached. In the event of a
power management issue, inline power to low-priority is interrupted first (i.e., before critical and high-
priority).
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High. This value is used for port(s) that have important, but not mission-critical, devices attached. If
other in the chassis have been configured as critical, inline power to high-priority is given second
priority.
•
Critical. This value is used for port(s) that have mission-critical devices attached, and therefore require
top (i.e., critical) priority. In the event of a power management issue, inline power to critical is main-
tained as long as possible.
To change the priority level for a particular port, use the lanpower priority command. Since the switch
allows you to set priority levels on a port-by-port basis, be sure to specify slot/port information in the
command line. For example, the syntax
-> lanpower 1/1 priority critical
changes the priority value of port 1 to the highest priority level of critical. Now that the default value has
been reconfigured, this port should be reserved for those PDs that are mission critical for network opera-
tions.