Administrator Guide

Switch Management Commands 2012
Power Over Ethernet Commands
Dell Networking N1500P/N2000P/N3000P Series Switches
The Dell Networking PoE solution implements the PoE+ specification
(IEEE 802.3at) for power sourcing equipment (PSE). IEEE 802.3at allows
power to be supplied to Class 4 PD devices that require power greater than
15.4 Watts and up to 34.2 Watts. This allows the PoE+ enabled network
switches and routers to be used for deployment with devices that require
more power than the 802.3AF specification allows. PoE+ 802.3at is
compatible with 802.1AF.
The Dell Networking N3024P/N3048P switches support delivery of up to
62W of power on the first 12 interfaces of each stack unit.
NOTE: This section applies to the N1524P/N1548P/N2024P/N2048P/N3024P/N3048P
switches.
Flexible Power Management
The Dell Networking PoE solution provides power management which
supports power reservation, power prioritization and power limiting. The
operator can assign a priority to each PoE port. When the power budget of
the PoE switch has been exhausted, the higher priority ports are given
preference over the lower priority ports. Lower priority ports are forcibly
stopped to supply power in order to provide power to higher priority ports.
The static power management feature allows operators to reserve a
guaranteed amount of power for a PoE port. This is useful for powering up
devices which draw variable amounts of power and provide them an assured
power range within which to operate. Class based power management
allocates power at class limits as opposed to user defined limits.
In the Dynamic Power management feature, power is not reserved for a given
port at any point of time. The power available with the PoE switch is
calculated by subtracting the instantaneous power drawn by all the ports from
the maximum available power. Thus, more ports can be powered at the same
time. This feature is useful to efficiently power up more devices when the
available power with the PoE switch is limited.
2CSNXXX_SWUM204.book Page 2012 Monday, January 25, 2016 1:25 PM