Setting Port Priority Levels - Alcatel-Lucent OmniSwitch 6250 Hardware User's Manual

Managing Power over Ethernet (PoE)
Important. Before changing the maximum slot-wide power allowance, you must disable PoE for the slot
via the lanpower stop
lanpower start command.
To increase or decrease the total power available to a slot, use the
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 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 switch allows 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.
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).
• 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
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.
OmniSwitch 6250 Hardware Users Guide
command. Once the new value is assigned, re-enable PoE for the slot via the
September 2015
Configuring Power over Ethernet Parameters
lanpower maxpower
lanpower priority command. Since the switch
command. Since
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