Dell Networking N2024 User manual

Dell N20xx/N30xx
Series Switch
Getting Started Guide
Guide de mise en route
Guia de Primeiros Passos
Guía de introducción
Regulatory Models: N2024, N2024P,
N2048, N2048P, N3024, N3024P, N3048,
N3048P, N3024F

Dell N20xx/N30xx
Series Switch
Getting Started Guide
Regulatory Models: N2024, N2024P,
N2048, N2048P, N3024, N3024P, N3048,
N3048P, N3024F

Notes, Cautions, and Warnings
NOTE: A NOTE indicates important information that helps you make better use of
your switch.
CAUTION: A CAUTION indicates either potential damage to hardware or loss of
data and tells you how to avoid the problem.
WARNING: A WARNING indicates a potential for property damage, personal
injury, or death.
____________________
© 2013 Dell Inc.
Trademarks used in this text: Dell®, the DELL logo, OpenManage™, and ReadyRails™ are
trademarksofDellInc.Microsoft®,andWindows®areregisteredtrademarksofMicrosoftCorporation
in the United States and/or other countries.
Regulatory Models N2024, N2024P, N2048, N2048P, N3024, N3024P, N3048, N3048P, N3024F
December 2013 P/N TX9NF Rev. A00

Contents 3
Contents
1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . 7
2 N20xx Series Overview . . . . . . . . . . . . . . . 7
3 N20xx Series Hardware Overview. . . . . . . 8
N20xx Series Front Panel . . . . . . . . . . . . . . . . . 8
Switch Ports . . . . . . . . . . . . . . . . . . . . 10
Console Port . . . . . . . . . . . . . . . . . . . . 10
USB Port . . . . . . . . . . . . . . . . . . . . . . 11
Reset Button . . . . . . . . . . . . . . . . . . . . 11
Port and System LEDs . . . . . . . . . . . . . . . 11
Stack Master LED and Stack Number Display . . . 11
N20xx Series Back Panel . . . . . . . . . . . . . . . . 12
Power Supplies . . . . . . . . . . . . . . . . . . . 12
Ventilation System . . . . . . . . . . . . . . . . . 13
N20xx Model Summary . . . . . . . . . . . . . . . . . 13
4 N20xx Series Installation . . . . . . . . . . . . 14
Site Preparation . . . . . . . . . . . . . . . . . . . . . 14
Unpacking the N20xx Switch . . . . . . . . . . . . . . 15
Package Contents . . . . . . . . . . . . . . . . . 15
Unpacking Steps . . . . . . . . . . . . . . . . . . 15

4Contents
Rack Mounting a N20xx Switch . . . . . . . . . . . . . 15
Installing in a Rack . . . . . . . . . . . . . . . . . 15
Installing as a Free-standing Switch . . . . . . . . 17
Stacking Multiple N20xx Switches . . . . . . . . . . . 17
Creating a Switch Stack . . . . . . . . . . . . . . 17
5 Starting and Configuring the N20xx Switch 20
Connecting a N20xx Switch to a Terminal . . . . . . . 21
Connecting a N20xx Switch to a Power Source . . . . 22
AC and DC Power Connection . . . . . . . . . . . 22
Booting the N20xx Switch . . . . . . . . . . . . . . . . 23
Performing the N20xx Initial Configuration . . . . . . . 24
Enabling Remote Management . . . . . . . . . . . 24
Initial Configuration Procedure . . . . . . . . . . . 25
Example Session . . . . . . . . . . . . . . . . . . 26
Dell Easy Setup Wizard Console Example . . . . . 27
Next Steps . . . . . . . . . . . . . . . . . . . . . 30
6 N30xx Series Overview . . . . . . . . . . . . . 31
7 N30xx Series Hardware Overview . . . . . 31
N30xx Series Front Panel . . . . . . . . . . . . . . . . 32
Switch Ports . . . . . . . . . . . . . . . . . . . . 34
Console Port . . . . . . . . . . . . . . . . . . . . 34
Out-of-Band Management Port. . . . . . . . . . . 35
USB Port . . . . . . . . . . . . . . . . . . . . . . 35
Reset Button . . . . . . . . . . . . . . . . . . . . 35

Contents 5
Port and System LEDs . . . . . . . . . . . . . . . 35
Stack Master LED and Stack Number Display . . . 36
N30xx Series Back Panel . . . . . . . . . . . . . . . . 36
Expansion Slots for Plug-in Modules. . . . . . . . 37
Power Supplies . . . . . . . . . . . . . . . . . . . 38
Ventilation System . . . . . . . . . . . . . . . . . 38
N30xx Model Summary . . . . . . . . . . . . . . . . . 39
8 N30xx Series Installation . . . . . . . . . . . . 40
Site Preparation . . . . . . . . . . . . . . . . . . . . . 40
Unpacking the N30xx Switch . . . . . . . . . . . . . . 41
Package Contents . . . . . . . . . . . . . . . . . 41
Unpacking Steps . . . . . . . . . . . . . . . . . . 41
Rack Mounting a N30xx Switch. . . . . . . . . . . . . 42
Rack Mounting Safety Considerations . . . . . . . 42
Installing the Dell ReadyRail System . . . . . . . . 43
Installing as a Free-standing Switch . . . . . . . . 47
Stacking Multiple N30xx Switches . . . . . . . . . . . 47
Creating a Switch Stack . . . . . . . . . . . . . . 47
9 Starting and Configuring the N30xx Switch 49
Connecting a N30xx Switch to a Terminal . . . . . . . 50
Connecting a N30xx Switch to a Power Source . . . . 51
AC and DC Power Connection . . . . . . . . . . . 51
Booting the N30xx Switch. . . . . . . . . . . . . . . . 52
Performing the N30xx Initial Configuration . . . . . . . 53

6Contents
Enabling Remote Management . . . . . . . . . . . 53
Initial Configuration Procedure . . . . . . . . . . . 54
Example Session . . . . . . . . . . . . . . . . . . 55
Dell Easy Setup Wizard Console Example . . . . . 56
Next Steps . . . . . . . . . . . . . . . . . . . . . 59
10 NOM Information (Mexico Only) . . . . . . 60

Getting Started Guide 7
Introduction
This document provides basic information about the Dell N20xx/N30xx
Series switches, including how to install a switch and perform the initial
configuration. For information about how to configure and monitor switch
features, see the User’s Configuration Guide, which is available on the Dell
Support website at dell.com/support/manuals, for the latest updates on
documentation and firmware.
This document contains the following sections:
• N20xx Series Overview
• N20xx Series Hardware Overview
• N20xx Series Installation
• Starting and Configuring the N20xx Switch
• N30xx Series Overview
• N30xx Series Hardware Overview
• N30xx Series Installation
• Starting and Configuring the N30xx Switch
• NOM Information (Mexico Only)
NOTE: Switch administrators are strongly advised to maintain Dell Networking
switches on the latest version of the Dell Networking Operating System (DNOS).
Dell Networking continually improves the features and functions of DNOS based on
feedback from you, the customer. For critical infrastructure, prestaging of the new
release into a noncritical portion of the network is recommended to verify network
configuration and operation with the new DNOS version.
N20xx Series Overview
The Dell N20xx switches are stackable Layer 2 Gigabit Ethernet switches and
include the following models:
• Dell N2024
• Dell N2024P
• Dell N2048
• Dell N2048P

8Getting Started Guide
N20xx Series Hardware Overview
This section contains information about device characteristics and modular
hardware configurations for the N20xx Series switches.
All N20xx non-PoE models are 1U, rack-mountable switches with the
following physical dimensions:
• 440.0 x 257.0 x 43.5 mm (W x D x H).
• 17.3 x 10.1 x 1.7 inches (W x D x H).
All N20xx PoE models are 1U, rack-mountable switches with the following
physical dimensions:
• 440.0 x 387.0 x 43.5 mm (W x D x H).
• 17.3 x 15.2 x 1.7 inches (W x D x H).
N20xx Series Front Panel
The following images show the front panels of the switch models in the
N20xx Series.
Figure 1-1. N2048 Series with 48 10/100/1000BASE-T Ports (Front Panel)
In addition to the switch ports, the front panel of each model in the N20xx
series includes the following ports:
• Console port
• USB port
48 10/100/1000BASE-T Ports SFP+
Ports
Console Port USB Port

Getting Started Guide 9
Figure 1-2. N2024 Close-up
The N20xx front panel, shown in Figure 1-2, has status LEDs for over-
temperature alarm, internal power, and status on the top row. The bottom
row of status LEDs displays stack master, redundant power supply (RPS)
status and fan alarm status.
Figure 1-3. N2024P Close-up
The N20xxP front panel, shown in Figure 1-3, has status LEDs for over-
temperature alarm, internal power and status on the top row. The bottom row
of status LEDs displays stack master, modular power supply (MPS) status and
fan alarm status.

10 Getting Started Guide
Switch Ports
The N2024/N2024P front panel provides 24 Gigabit Ethernet
(10/100/1000BASE-T) RJ-45 ports that support auto-negotiation for speed,
flow control, and duplex. The N2024/N2024P models support two SFP+ 10G
ports. Dell-qualified SFP+ transceivers are sold separately.
The N2048/N2048P 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 N2048/N2048P support two SFP+ 10G
ports. Dell-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-qualified transceivers.
• RJ-45 ports support full-duplex mode 10/100/1000 Mbps speeds on
standard Category 5 UTP cable.
• SFP+ ports support SFP+ transceivers and SFP+ copper twin-ax
technology plus SFP transceivers operating at 1G.
• The N2024P/N2048P front panel ports support PoE (15.4W) and PoE+
(30W).
Console Port
The console port provides serial communication capabilities, which allows
communication using RS-232 protocol. The serial port provides a direct
connection to the switch and allows access to the CLI from a console
terminal connected to the port through the provided serial cable (with RJ45
YOST to female DB-9 connectors).
The console port is separately configurable and can be run as an asynchronous
link from 1200 baud to 115,200 baud.
The Dell CLI only supports changing the speed. The defaults are 9600 baud
rate, 8 data bits, No Parity, 1 Stop Bit, No Flow Control.

Getting Started Guide 11
USB Port
The Type-A, female USB port supports a USB 2.0-compliant flash memory
drive. The Dell Networking switch can read or write to a flash drive formatted
as FAT-32. You can use a USB flash drive to copy switch configuration files
and images between the USB flash drive and the switch. You can also use the
USB flash drive to move and copy configuration files and images from one
switch to other switches in the network.
The USB port does not support any other type of USB device.
Reset Button
The reset button is accessed through the pinhole and allows you to perform a
hard reset on the switch. To use the reset button, insert an unbent paper clip
or similar tool into the pinhole. When the switch completes the boot process
after the reset, it resumes operation with the most recently saved
configuration. Any changes made to the running configuration that were not
saved to the startup configuration prior to the reset are lost.
Port and System LEDs
The front panel contains light emitting diodes (LEDs) that indicate the
status of port links, power supplies, fans, stacking, and the overall system
status.
For information about the status that the LEDs indicate, see the User’s
Configuration Guide.
Stack Master LED and Stack Number Display
When a switch within a stack is the master unit, the stack master LED, which
is labeled M, is solid green. If the M LED is off, the stack member is not the
master unit. The Stack No. panel displays the unit number for the stack
member. If a switch is not part of a stack (in other words, it is a stack of one
switch), the M LED is illuminated, and the unit number is displayed.

12 Getting Started Guide
N20xx Series Back Panel
The following images show the back panels of the N20xx switches.
Figure 1-4. N20xx Back Panel
Figure 1-5. N2024P/N2048P Back Panel
The term mini-SAS refers to the stacking port cable connections shown in
Figure 1-6. See Stacking Multiple N20xx Switches for information on using
the mini-SAS ports to connect switches.
Figure 1-6. N2048 Mini-SAS Stacking Ports and Fans
Power Supplies
N2024 and N2048
N2024 and N2048 switches have an internal 100-watt power supply. The
additional redundant power supply (Dell Networking RPS720) provides 180
watts of power and gives full redundancy for the switch.
Fan Vents
AC Power Receptacle
Mini-SAS stacking ports

Getting Started Guide 13
N2024P and N2048P
Dell Networking N2024P and N2048P switches have an internal 1000-watt
power supply feeding up to 24 PoE devices at full PoE+ power (850W). An
additional external power supply (MPS1000) provides 1000 watts and gives
full power coverage for all 48 PoE devices (1800W).
NOTE: PoE power is dynamically allocated. Not all ports will require the full PoE+
power.
CAUTION: Remove the power cable from the power supplies prior to removing
the power supply module itself. Power must not be connected prior to insertion in
the chassis.
Ventilation System
Two fans cool the N20xx switches.
N20xx Model Summary
Table 1-1. N20xx Model Summary
Marketing
Model
Name
Description Power
Supply
Unit
Regulatory
Model Number
Regulatory
Type
Number
N2024 24x1G/2x10G SFP+/2x
Stacking
100W E04W E04W001
N2024P 24x1G/2x10G SFP+/2x
Stacking/24x PoE+ Ports
1000W E05W E05W001
N2048 48x1G/2x10G SFP+/2x
Stacking
100W E04W E04W002
N2048P 48x1G/2x10G SFP+/2x
Stacking/48x PoE+ Ports
1000W E05W E05W002

14 Getting Started Guide
N20xx Series Installation
Site Preparation
N20xx Series switches can be mounted in a standard 48.26 cm (19-inch) rack
or placed on a flat surface.
Make sure that the chosen installation location meets the following site
requirements:
• Power — The switch is installed near an easily accessible 100–240 VAC,
50–60 Hz outlet.
•
Clearance — There is adequate front and rear clearance for operator
access. Allow clearance for cabling, power connections, and ventilation.
•
Cabling — The cabling is routed to avoid sources of electrical noise such
as radio transmitters, broadcast amplifiers, power lines, and fluorescent
lighting fixtures.
•
Ambient Temperature — The ambient switch operating temperature
range is 0 to 45ºC (32 to 113ºF) at a relative humidity of up to 95 percent,
non-condensing.
NOTE: Decrease the maximum temperature by 1°C (1.8°F) per 300 m (985 ft.) above
900m (2955 ft.).
• Relative Humidity — The operating relative humidity is 8% to 85%
(noncondensing) with a maximum humidity gradation of 10% per hour.

Getting Started Guide 15
Unpacking the N20xx Switch
Package Contents
When unpacking each switch, make sure that the following items are
included:
• One Dell Networking switch
• One RJ-45 to DB-9 female cable
• One rack-mount kit (N20xx) for rack installation, two mounting brackets,
bolts, and cage nuts
• One set of self-adhesive rubber pads for the free-standing switch (four pads
are included)
Unpacking Steps
NOTE: Before unpacking the switch, inspect the container and immediately report
any evidence of damage.
1 Place the container on a clean, flat surface and cut all straps securing the
container.
2 Open the container or remove the container top.
3 Carefully remove the switch from the container and place it on a secure
and clean surface.
4 Remove all packing material.
5 Inspect the product and accessories for damage.
Rack Mounting a N20xx Switch
WARNING: Read the safety information in the Safety and Regulatory Information
as well as the safety information for other switches that connect to or support the
switch.
The AC power connector is on the back panel of the switch.
Installing in a Rack
WARNING: Do not use rack mounting kits to suspend the switch from under a
table or desk, or attach it to a wall.

16 Getting Started Guide
CAUTION: Disconnect all cables from the switch before continuing. Remove all
self-adhesive pads from the underside of the switch, if they have been attached.
CAUTION: When mounting multiple switches into a rack, mount the switches
from the bottom up.
1 Place the supplied rack-mounting bracket on one side of the switch,
ensuring that the mounting holes on the switch line up to the mounting
holes in the rack-mounting bracket. Figure 1-7 illustrates where to mount
the brackets.
Figure 1-7. Attaching the Brackets
2 Insert the supplied bolts into the rack-mounting holes and tighten with a
screwdriver.
3 Repeat the process for the rack-mounting bracket on the other side of the
switch.
4 Insert the switch into the 48.26 cm (19 inch) rack, ensuring that the rack-
mounting holes on the switch line up to the mounting holes in the rack.
5 Secure the switch to the rack with either the rack bolts or cage nuts and
cage-nut bolts with washers (depending on the kind of rack you have).
Fasten the bolts on bottom before fastening the bolts on top.
CAUTION: Make sure that the supplied rack bolts fit the pre-threaded holes in the
rack.
NOTE: Make sure that the ventilation holes are not obstructed.

Getting Started Guide 17
Installing as a Free-standing Switch
NOTE: We strongly recommend mounting the switch in a rack.
Install the switch on a flat surface if you are not installing it in a rack. The
surface must be able to support the weight of the switch and the switch
cables. The switch is supplied with four self-adhesive rubber pads.
1
Attach the self-adhesive rubber pads on each location marked on the
bottom of the switch.
2 Set the switch on a flat surface, and make sure that it has proper
ventilation by leaving 5 cm (2 inches) on each side and 13 cm (5 inches) at
the back.
Stacking Multiple N20xx Switches
You can stack N20xx switches up to 12 switches high using the mini-SAS
ports located on the rear of the switch. N20xx switches support stacking only
with other N20xx series switches. When multiple switches are connected
together through the stack ports, they operate as a single unit with up to 576
front panel ports. The stack operates and is managed as a single entity.
NOTE: If you are installing a stack of switches, you need to assemble and cable the
stack before powering up and configuring it. When a stack is powered up for the
first time, the switches elect a Master Switch, which may occupy any location in
the stack. The Master LED on the front panel is illuminated on the master unit.
Creating a Switch Stack
Create a stack by connecting adjacent units using the mini-SAS stacking
ports on the back panel of the switch. Figure 1-8 on page 18 shows the
switches connected in a ring topology, which is the recommended topology
for a stack.
1
Connect one of the mini-SAS cables into either of the stacking ports of the
top switch and the switch directly below it.
If necessary, use a separately purchased, longer (1 meter or 3 meter) mini-
SAS cable to connect the switches.
2 Repeat this process until all of the devices are connected.
3 Use the remaining stacking cable to connect the two remaining stacking
ports together so that a ring topology is assembled.

18 Getting Started Guide
Figure 1-8. Connecting a Stack of Switches
The stack in Figure 1-8 is connected in a ring topology and has the following
physical connections between the switches:
• The bottom mini-SAS port on Unit 1 is connected to the top mini-SAS
port on Unit 2.
• The bottom mini-SAS port on Unit 2 is connected to the top mini-SAS
port on Unit 3.
• The bottom mini-SAS port on Unit 3 is connected to the top mini-SAS
port on Unit 1.
Unit 1
Unit 2
Unit 3