Users Guide

Table Of Contents
Hardware Overview 159
The Dell EMC Networking N3000E-ON Series front panel displays, from left
to right, status LEDs for over-temperature alarm, internal power supply 1,
and switch status on the top row. The bottom row of status LEDs displays,
from left to right, the management unit in the stack, internal power supply 2,
and fan alarm status.
Switch Ports
The Dell EMC Networking N3024ET-ON/N3024EP-ON front panel provides
24 Gigabit Ethernet (10/100/1000BASE-T) RJ-45 ports that support auto-
negotiation for speed, flow control, and duplex. The Dell EMC Networking
N3024P models support two SFP+ 10G ports. Dell EMC-qualified SFP+
transceivers are sold separately. The Dell EMC Networking N3000E-ON
Series switches operate in full-duplex mode only.
The Dell EMC Networking N3024EF-ON front panel provides 24 Gigabit
Ethernet 100BASE-FX/1000BASE-X SFP ports plus two 1000BASE-T combo
ports. The combo ports are set to prefer fiber. A fiber combo port may flap
once after powering up the transceiver and detecting that a change in the
interface mode is required. If using the 1000BASE-T port, remove any
transceivers from the SFP port. Dell EMC-qualified SFP transceivers are sold
separately. 1000BASE-X and 1000BASE-T operation requires the use of auto-
negotiation.
The Dell EMC Networking N3048ET-ON/N3000 front panel provides 48
Gigabit Ethernet (10BASE-T, 100BASE-TX, 1000BASE-T) RJ-45 ports that
support auto-negotiation for speed, flow control, and duplex. The Dell EMC
Networking N3048ET-ON/N3048P-ON support two SFP+ 10G ports. Dell
EMC-qualified SFP+ transceivers are sold separately.
The front-panel switch ports have the following characteristics:
The switch automatically detects the difference between crossed and
straight-through cables on RJ-45 ports and automatically chooses the MDI
or MDIX configuration to match the other end.
SFP+ ports support Dell EMC-qualified transceivers. The default
behavior is to log a message and generate an SNMP trap on insertion or
removal of an optic that is not qualified by Dell. The message and trap can
be suppressed by using the service unsupported-transceiver command.
RJ-45 ports support full-duplex mode 10/100/1000 Mbps speeds on
standard Category 5 UTP cable.