Administrator Guide

Switch Management Commands 2017
• class —Class-based power management
• unit-id—A stack unit ID.
Default Configuration
Default management is dynamic.
Command Mode
Global Configuration
User Guidelines
Static dynamic and class-based modes differ in how the available power is
calculated:
Static Power Management
Available Power = Power Limit of the Sources – Total Configured Power
Where Total Configured Power is calculated as sum of the configured power
limit configured on the port. Static power management supplies the
configured power regardless of the actual power draw. LLDP-MED packets
requesting power are ignored in static mode. Do not configure the powered
device to use LLDP-MED to request power in this mode.
Dynamic Power Management
Available Power = Power limit of the Sources – Total Allocated power
Where Total Allocated Power is calculated as the sum of the power consumed
by each port. Dynamic power management ignores LLDP-MED packets sent
by the powered device. Do not configure the powered device to send LLDP-
MED packets in this mode. The powered device may draw up to the port
limit if power is available.
Class-Based Power Management
Available Power = Power limit of the Sources – Total Class Configured power
Where Total Class Configured Power is calculated as the sum of the class
based power allocation for each port. Note that Class-Based Power
Management mode reserves the class limit for the port. The Powered Device
need not draw all of the requested power. The Consumed Power display from
2CSNXXX_SWUM204.book Page 2017 Monday, January 25, 2016 1:25 PM