Dell N3000E Rackmount Service Manual

Dell Networking N20xx and N30xx Series Switch

Installation Guide

Regulatory Model: N20xx, N30xx

Notes, cautions, and warnings

NOTE: A NOTE indicates important information that helps you make better use of your product.

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.

trademarks may be trademarks of their respective owners.

2016 - 12

Rev. A00

About this Guide

This document is intended as an installation guide to get new systems up and running and ready for configuration. You can use a Dell N20xx or N30xx either as a switch or a port extender for a C9010 switch. You can use the N20xx or N30xx series

devices as a switch if you use the Dell Networking OS version 6.3(0.16) or later. If you use a N20xx or N30xx series device as a port extender for the C9010, install the Dell Networking OS version 9.11(0.0) or later. For converting the switch, purchase a rapid access node conversion license from Dell. For more information about installing the Dell Networking OS version 9.11(0.0) or version 6.3(0.16) on an N20xx or N30xx system, see the

For complete installation, configuration, and update information, see the following documents at www.dell.com/support.

Table 1. N20xx/N30xx Documentation

Information Documentation

Software configuration

Dell Networking OS Conversion Guide for the N20xx/N30xx Series.

• Dell Networking Configuration Guide for the C9000 Series—for Dell Networking OS 9.11(0.0) or later

• Dell Networking N-Series User Guide—for Dell Networking OS

6.3(0.16)

Command-line interface

Installing Dell Networking OS version 9.11(0.0) or version 6.3(0.16) on an N20xx or N30xx system

Latest updates

• Dell Networking Command-Line Reference Guide for the C9000 Series—for Dell Networking OS 9.11(0.0) or later

• Dell Networking CLI Reference Guide—for Dell Networking OS

6.3(0.16)

Dell Networking OS Conversion Guide for the N20xx/N30xx Series

Dell Networking C9010, C1048P, and N20xx/N30xx Series Release Notes

About this Guide 3

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

N20xx Series Hardware Overview

This section contains information about device characteristics and modular hardware configurations for the N20xx Series switches.

All N20xx non-power over Ethernet (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).

Other characteristics:

PSU handle length—1.25 inches

Stacking cable length—2.5 inches

N20xx Series I/O-Side

The following images show the I/O-side of the switch models in the N20xx Series.

Figure 1. N2048 Series with 48 10/100/1000BASE-T Ports

4 N20xx Series Overview

1 Console Port 2 USB Port 3 SFP+ Ports 4 48 10/100/1000BASE-T Ports

Figure 2. N2024 Close-up

1 Console Port 2 USB Port 3 Reset Button 4 SFP+ Ports

The N20xx I/O-side has status light emitting diodes (LEDs) for overtemperature alarm, internal power, and status on the top row. The bottom row of the status LEDs display the stack master, redundant power supply (RPS) status, and fan alarm status.

N20xx Series Overview

Figure 3. N2024P Close-up

1 Console Port 2 USB Port 3 Reset Button 4 SFP+ Ports

The N20xxP I/O-side has status LEDs for the overtemperature alarm, internal power, and status on the top row. The bottom row of the status LEDs display the stack master, modular power supply units (MPS) status, and fan alarm status.

Switch Ports

The N2024/N2024P I/O-side provides 24 Gigabit Ethernet (10/100/1000BASE-T) RJ-45 ports that support autonegotiation 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 I/O-side provides 48 Gigabit Ethernet (10BASE-T, 100BASE-TX, 1000BASE-T) RJ-45 ports that support autonegotiation 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 I/O-side ports support PoE (15.4W) and PoE+ (30W).

N20xx Series Overview

Console Port

The console port provides serial communication capabilities, which allows communication using the RS-232 protocol. The serial port provides a direct connection to the switch and allows access to the command line interface (CLI) from a console terminal connected to the port through the provided serial cable.

The console port is separately configurable and can run as an asynchronous link from 1,200 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.

USB Port

The Type-A, female USB port supports a universal serial bus (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 I/O-side contains LED that indicate the status of port links, power supplies, fans, stacking, and the overall system status.

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 lit, and the unit number displays.

N20xx Series Overview

N20xx Series PSU-Side

The following image shows the PSU-side of the N20xx switches.

Figure 4. N20xx PSU-Side

1 Mini-SAS stacking ports 2 Fan Vents 3 To DC Power Source (Optional) 4 AC Power Receptacle

The term mini-SAS refers to the stacking port cable connections. For information about using the mini-SAS ports to connect switches, see the Stacking Multiple N20xx Switches section.

Figure 5. N2048 Mini-SAS Stacking Ports Close-up

N20xx Series Overview

1 Mini-SAS stacking ports

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.

Power Supplies - 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 require the full PoE+ power.

CAUTION: Remove the power cable from the power supplies prior to removing the power supply module itself. You must not

connect power prior to insertion in the chassis.

Ventilation System

Two fans cool the N20xx switches.

N20xx Model Summary

Table 2. N20xx Model Summary

Marketing Model Name Description Power Supply Unit Regulatory Model

N2024 24x1G/2x10G SFP+/2x

Stacking

N2024P 24x1G/2x10G SFP+/2x

Stacking/24x PoE+ Ports

N2048 48x1G/2x10G SFP+/2x

Stacking

N2048P 48x1G/2x10G SFP+/2x

Stacking/48x PoE+ Ports

100W E04W E04W001

1000W E05W E05W001

100W E04W E04W002

1000W E05W E05W002

Number

Regulatory Type Number

N20xx Series Overview 9

N20xx Series Installation

You can mount the N20xx Series switches in a standard 48.26 cm (19-inch) rack or placed on a flat surface.

Make sure that the 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.

Topics:

• Unpacking the N20xx Switch

• Rack Mounting an N20xx Switch

• Stacking on N20xx Series Switches

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.

10 N20xx Series Installation

Rack Mounting an N20xx Switch

WARNING: Read the safety information in the

that connect to or support the switch.

The AC power connector is on the PSU-side of the switch.

Safety and Regulatory Information

and the safety information for other switches

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.

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 Align the holes on the right rack-mount bracket with the holes on the right side (facing you) of the switch. 2 Secure the bracket (item 3) to the chassis by tightening the screws (item 2) provided with the mount bracket.

Figure 6. Attaching Mount Brackets to the N20xx

3 Repeat Steps 1 and 2 to attach the left rack-mount bracket on the device. 4 Mount the switch into a 48.26 cm (19 inch) rack. Align the holes on each bracket flange with the holes on a rack post. 5 Secure the switch to the rack using the rack bolts (provided with the mount brackets) or cage nuts and cage-nut bolts with washers

(provided with the rack). Tighten the bolts on the bottom of each bracket flange first; then tighten the bolts on top (item 1).

CAUTION

NOTE: Do not obstruct the ventilation holes.

: Make sure that the supplied rack bolts fit the pre-threaded holes in the rack.

N20xx Series Installation 11

Figure 7. Mounting the N20xx in a 2-Post Rack

Installing as a Free-standing Switch

: Dell strongly recommends mounting the switch in a rack.

NOTE

Install the switch on a flat surface if you are not installing it in a rack. The surface must support the weight of the switch and the switch cables. The switch is includes 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. 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 on N20xx Series Switches

This section explains how to stack multiple N20xx series switches.

Stacking Multiple N20xx Switches on Dell Networking OS

6.3(0.16)

If you are using Dell Networking OS version 6.3(0.16), you can stack up to 12 switches using the mini-SAS ports located on the rear of the switch. N20xx switches support stacking only with other N20xx series switches. When you connect multiple switches together through the stack ports, they operate as a single unit with up to 576 I/O-side ports. The stack operates and is managed as a single entity.

NOTE

: If you are installing a stack of switches, you must assemble and cable the stack before powering up and configuring it.

When you power up a stack for the first time, the switches elect a Master Switch, which may occupy any location in the stack. The Master LED on the I/O-side lights on the master unit.

12 N20xx Series Installation

Stacking Multiple Switches on Dell Networking OS 9.11(0.0)

The system supports PE stacking, which allows multiple units to act as a single port extender. You can stack up to eight units using the stack ports on the PSU-side.

The stack ports support the serial attached SCSI (SAS) protocol and operate as mini-SAS ports. The system supports stacking only with port extenders of the same series. The stack operates and is managed as a single entity.

NOTE: If you are installing a stack, assemble and cable the stack before powering it up. When you power up a stack for the first

time, the units receive the provisioned configuration from the parent C9010. A Stack Master unit is elected based on the highest MAC address or highest provisioned priority. The master unit may occupy any location in the stack. The Stack Master LED on the I/O-side lights on the master unit.

NOTE: Although individual stack members do not require a separate uplink to a parent C9010, Dell Networking recommends

connecting more than one stack unit to the C9010 for redundancy. A stack unit uses the stacking connection to the master PE for its C9010 uplink. For more information, see the

Connecting to a C9010 Switch

section.

Creating a Switch Stack

Create a stack by connecting adjacent units using the mini-SAS stacking ports on the PSU-side of the switch. Figure 8 shows the switches connected in a ring topology. A ring topology 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 you connect all the devices. 3 Use the remaining stacking cable to connect the two remaining stacking ports together to create the ring topology.

Figure 8. Connecting a Stack of Switches

N20xx Series Installation

1 Stack units 2 Stacking cables

The ring topology stack 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.

Stacking Standby on Dell Networking OS 6.3(0.16)

The stacking feature on Dell Networking OS version 6.3(0.16) supports a Standby or backup unit that assumes the Master unit role if the Master unit in the stack fails. As soon as a Master failure is detected in the stack, the Standby unit initializes the control plane and enables all other stack units with the current configuration. The Standby unit maintains a synchronized copy of the running configuration for the stack. The Standby unit is automatically selected in the stack; however, you can use the CLI to select a different stack member as Standby. For more information, see the User's Configuration Guide or the CLI Reference Guide.

Stacking Standby on Dell Networking OS 9.11(0.0)

If the system runs Dell Networking OS version 9.11(0.0), the system supports a Standby or backup unit that assumes the Stack Master role if the Master unit in the stack fails. The parent C9010 maintains a synchronized copy of the running configuration for the stack. When the system detects a Stack Master failure, the C9010 initializes the Standby unit and enables all other stack units with the current configuration.

Although the Standby unit is automatically selected in the stack, you can use the CLI on the C9010 or the N20xx/N30xx series system console to manually configure a different stack member as Standby. For more information, see the Dell Networking Configuration Guide

for C9000 Series Switches

N20xx Series Installation

Starting and Configuring the N20xx Switch

Connecting an N20xx Switch to a Terminal

After completing all external connections, connect a terminal to a switch to configure the switch.

NOTE: Read the Release Notes for this product before proceeding. Dell Networking recommends that you obtain the most

recent version of the user documentation from the Dell Support website at http://www.dell.com/support.

To monitor and configure the switch using the serial console, use the console port on the I/O-side of the switch. Connect it to a VT100 terminal or to a computer running VT100 terminal emulation software. The console port is a data terminal equipment (DTE) connector.

You must have the following equipments to use the console port:

• VT100-compatible terminal or a computer with a serial port running VT100 terminal emulation software, such as Microsoft

HyperTerminal.

• A serial cable (provided) with an RJ-45 connector for the console port and DB-9 connector for the terminal.

To connect a terminal to the switch console port,

1 Connect the DB-9 connector on the serial cable to the terminal or computer running VT100 terminal emulation software. 2 Configure the terminal emulation software as follows:

a Select the appropriate serial port (for example, COM 1) to connect to the console. b Set the data rate to 9600 baud. c Set the data format to 8 data bits, 1 stop bit, and no parity. d Set the flow control to none. e Set the terminal emulation mode to VT100. f Select Terminal keys for Function, Arrow, and Ctrl keys. Make sure that the setting is for Terminal keys (not Microsoft

Windows keys).

3 Connect the RJ-45 connector on the cable directly to the switch console port. The Dell Networking console port is on the right side

of the I/O-side and is labeled with a |O|O| symbol.

NOTE

: Serial console access to the Stack Manager is available from any serial port using the local CLI. Only one serial

console session at a time is supported.

Starting and Configuring the N20xx Switch 15

+ 32 hidden pages