Administrator Guide

78 Switch Feature Overview
Power Over Ethernet (PoE) Plus Configuration
The Dell EMC Networking N1108P-ON/N1124P-ON/N1148P-ON,
N1524P/N1548P, N2024P/N2048P, N2128PX-ON, N3024P/N3048P/N3048EP-
ON, and N3132PX-ON switches support PoE Plus configuration for power
threshold, power priority, SNMP traps, and PoE legacy device support. Power
can be limited on a per-port basis.
PoE Plus Support
The Dell EMC Networking N1108P-ON/N1124P-ON/N1148P-ON,
N1524P/N1548P, N2024P/N2048P, N2128PX-ON, N3024P/N3048P/N3048EP-
ON, and N3132PX-ON switches implement the PoE Plus specification (IEEE
802.1at), in addition to the IEEE 802.3AF specification. This allows power to
be supplied to Class 4 PD devices that require power greater than 15.4 Watts.
Each port is capable of delivering up to 34.2W of power. Real-time power
supply status is also available on the switch as part of the PoE Plus
implementation.
Power Management
Modes
Supports three power-management modes:
• Static—Reserves a configurable amount of power for a PoE
port.
• Dynamic—Power is not reserved for the port at any point
of time. Power is supplied based upon the detected
powered device (PD) signature.
• Class-based—Reserves a classed-based amount of power
for a PoE port. The final power delivered is determined via
LLDP-MED negotiation, which allows for refinement of
the power limit.
Power Detection Mode Sets the mode to 802.3at or 802.3at+legacy detection.
Table 2-1. PoE Plus Key Features (Continued)
Feature Description