3COM 4210G User Manual
3 Mb

3Com Switch 4210G Family

Getting Started Guide

Manual Version: 6W100-20100203 www.3com.com

3Com Corporation

350 Campus Drive, Marlborough,

MA, USA 01752 3064

Copyright © 2010, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.

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About This Manual


3Com Switch 4210G Family Getting Started Guide is organized as follows:







Router Overview


Briefly introduces the appearance, system description, as well as



the features and applications of the 3Com Switch 4210G Family.












Describes the requirements on installation site, the safety


Preparing for Installation

recommendations before and during installation, and the required













Covers the procedures for installing the 3Com Switch 4210G


Installing the Switch


Family, ground wire connection, power module installation,




interface module installation, and so on.







Starting and Configuring the

Helps you get familiar with the basic knowledge of how to boot and

configure the 3Com Switch 4210G Family, including device




startup, power-on,and initialization of system files, and so on.










Boot ROM and


Introduces how to load Boot ROM and host software for the



Software Loading


3Com Switch 4210G Family.









Introduces the problems that might occur during the installation

and the booting of the 3Com Switch 4210G Family and the related









The manual uses the following conventions:

Command conventions






The keywords of a command line are in Boldface.








Command arguments are in italic.






[ ]

Items (keywords or arguments) in square brackets [ ] are optional.




{ x | y | ... }

Alternative items are grouped in braces and separated by vertical bars.

One is selected.










[ x | y | ... ]

Optional alternative items are grouped in square



separated by vertical bars. One or none is selected.








{ x | y | ... } *

Alternative items are grouped in braces and separated by vertical bars.

A minimum of one or a maximum of all can be selected.










[ x | y | ... ] *

Optional alternative items are grouped in square



separated by vertical bars. Many or none can be selected.







The argument(s) before the ampersand (&) sign can be entered 1 to n












A line starting with the # sign is comments.







GUI conventions









Window names, button names, field names, and menu items are in



Boldface. For example, the New User window appears; clickOK.













Multi-levelmenus are separated by angle brackets. For example,File >



Create > Folder.















Means reader be extremely careful. Improper operation may cause bodily injury.

Means reader be careful. Improper operation may cause data loss or damage to equipment.

Means an action or information that needs special attention to ensure successful configuration or good performance.

Means a complementary description.

Means techniques helpful for you to make configuration with ease.

Related Documentation

In addition to this manual, each 3Com Switch 4210G documentation set includes the following:





Switch 4210G Family

Describe how to configure your 4210 Switch using the supported

Configuration Guide

protocols and CLI commands.





Switch 4210G Family

Provide detailed descriptions of command line interface (CLI)

Command Reference Guide

commands, that you require to manage your switch.




Obtaining Documentation

You can access the most up-to-date3Com product documentation on the World Wide Web at this URL: http://www.3com.com.

Table of Contents

1Product Overview ······································································································································1-1

Overview ·················································································································································1-1 Introduction to Switch 4210G··················································································································1-3 Switch 4210G 24-Port ·····················································································································1-3 Switch 4210G 48-Port ·····················································································································1-4 Switch 4210G PWR 24-Port············································································································1-5 Switch 4210G PWR 48-Port············································································································1-6 Switch 4210G NT 24-Port ···············································································································1-7 Switch 4210G NT 48-Port ···············································································································1-8 Ports························································································································································1-8 Console Port····································································································································1-8 10/100/1000Base-T Ethernet Port···································································································1-9 1000Base-X SFP Port ·····················································································································1-9 Combo Port ···································································································································1-10 LEDs······················································································································································1-10 System Status LED ·······················································································································1-11 RPS Status LED ····························································································································1-11 Port Mode LED ······························································································································1-11 Seven-Segment LED·····················································································································1-12 10/100/1000Base-T Auto-Sensing Ethernet Port Status LED·······················································1-13 1000Base-X SFP Port Status LED································································································1-14 Interface Module Status LED ········································································································1-15 Optional Interface Modules ···················································································································1-15 Short-haul Dual-Port 10 GE CX4 Interface Module ······································································1-15 Dual-Port 10 GE XFP Interface Module ························································································1-16 One-port 10 GE XFP Interface Module ·························································································1-17 Dual-Port 10 GE SFP+ Interface Module ······················································································1-18 Description of LEDs of Interface Modules·····················································································1-19

2Preparing for Installation ··························································································································2-1

Safety Precautions··································································································································2-1 Installation Site········································································································································2-1 Temperature/Humidity·····················································································································2-2 Cleanness········································································································································2-2 Electromagnetic Susceptibility·········································································································2-2 Laser Safety ····································································································································2-3 Installation Tools ·····································································································································2-3

3Installing the Switch··································································································································3-1

Installation Flow of the Switch·················································································································3-1 Installing the Switch into a 19-Inch Rack Using Mounting Brackets·······················································3-2 Introduction to Mounting Bracket·····································································································3-2 Use Front Mounting Brackets to Install a Switch·············································································3-3 Use Front Mounting Brackets and a Tray to Install a Switch ··························································3-4 Use Front and Rear Mounting Brackets to Install a Switch·····························································3-5


Mounting the Switch on a Workbench ····································································································3-8 Connecting the Grounding Cable············································································································3-9 When a Grounding Strip is Available·······························································································3-9 Where a Grounding Conductor Can be Buried ·············································································3-10 In Other Installation Sites ··············································································································3-11

Connecting the Power Cords ················································································································3-12 Connecting the AC Power Cord ····································································································3-12 Connecting the RPS Power Cord··································································································3-13 Installing an Interface Module ···············································································································3-15 Installing an Interface Card ···········································································································3-15 Removing an Interface Module ·····································································································3-16 Installing Dedicated CX4/SFP+ Cable ··························································································3-16 Removing Dedicated CX4/SFP+ Cable ························································································3-17 Installing Switches for an IRF ···············································································································3-17 Installation Flow for an IRF············································································································3-18 Drawing a Plan for an IRF with Switches ······················································································3-19 Verifying the Installation························································································································3-22

4Starting and Configuring the Switch ·······································································································4-1

Setting up the Configuration Environment ······························································································4-1 Connecting the Console Cable ···············································································································4-1 Console Cable ·································································································································4-1 Connection Procedure·····················································································································4-2 Setting Terminal Parameters ··················································································································4-2 Booting the Switch ··································································································································4-5 Checking before Powering on the Switch························································································4-5 Powering on the Switch···················································································································4-5 Changing the Startup Mode ············································································································4-7

5Boot ROM and Host Software Loading ···································································································5-1

Introduction to Loading Modes················································································································5-1 Loading Software Through the Boot ROM Menu····················································································5-1 Boot Menu ·······································································································································5-1 Loading Software Using XMODEM Through Console Port·····························································5-3 Loading Software Using TFTP through Ethernet Port·····································································5-8 Loading Software Using FTP Through Ethernet Port····································································5-10 Loading Software Through CLI ·············································································································5-12 Loading Software Using FTP ········································································································5-12 Loading Software Using TFTP ······································································································5-13

6Maintenance and Troubleshooting··········································································································6-1

Software Loading Failure ························································································································6-1 Password Missing Failure ·······················································································································6-1 Missing User Password···················································································································6-1 Missing Boot ROM Password··········································································································6-1 Power Supply Failure······························································································································6-2 AC input···········································································································································6-2 RPS input ········································································································································6-2 RPS&AC input ·································································································································6-2 Fan Failure ··············································································································································6-3


Configuration System Failure··················································································································6-4 Troubleshooting when there is no terminal display ·········································································6-4 Troubleshooting when the terminal display is illegible ····································································6-4


1 Product Overview


3Com Switch 4210G Family (hereinafter referred to as the Switch 4210G ) are Layer 3 Gigabit Ethernet switching products developed by 3Com Corporation. (Hereinafter referred to as 3Com).

The Switch 4210G are designed as distribution or access devices for intranets and metropolitan area networks (MANs). Supporting IPv4/IPv6 dual stack, the Switch 4210G provide abundant service features.

The Switch 4210G include six models, and have the system specifications as shown in Table 1-1.They all support the3Com-specificcluster management function, which facilitates your network management. And four models of the Switch 4210G also support 10 GE uplink interfaces and the Intelligent Resilient Framework (IRF) technology. You can connect multiple 4210G switches through 10 GE ports to form a logical entity, thus to establish a new intelligent network with high reliability, expandability and manageability.

Table 1-1 System specifications of the Switch 4210G





4210G 24-Port



4210G 48-Port



4210G PWR



4210G PWR





4210G NT



4210G NT















































43.6 × 440 × 300 mm


43.6 × 440 × 420 mm







(1.72 × 17.32 × 11.81 in.)


(1.72 × 17.32 × 16.54 in.)


(H × W × D)
































<4.4 kg (9.70 lb)


< 4.7 kg


<6.9 kg

<7.4 kg (16.31 lb)




(10.36 lb)


(15.21 lb)























Management port

One console port, on the front panel










































T Ethernet ports




Supports PoE

Supports PoE










(on the front panel)

























4, each 1000 Base-XSFP port and the correspondingauto-sensing


1000 Base-XSFP


10/100/1000Base-TEthernet port form a Combo port.




















: For each Combo port, either the SFP port or the corresponding


(on the front panel)




10/100/1000Base-TEthernet port can be used at a time. For details about the









combo port mapping relationship, please refer to Table 1-4.










Switch 4210G NT 24-Portand Switch 4210G NT48-Portdo not support any





interface modules;











Interface modules


Switch 4210G 24-Port,Switch 4210G48-Port,Switch 4210G PWR24-Port,



and Switch 4210G PWR 48-Portsupport two interface modules respectively,






which can be:











(optional, on the













z Short-hauldual-port10GE CX4 interface module (3C17767, support IRF)


rear panel)


zDual-port10 GE XFP interface module (3C17766, support IRF)

zOne-port10 GE XFP interface module (3C17768, support IRF)

zDual-port10 GE SFP+ interface module (LSPM2SP2P, support IRF)








4210G 24-Port



4210G 48-Port



4210G PWR



4210G PWR








4210G NT



4210G NT


























































Power socket


1 AC power socket and 1 RPS power socket





















types and quantity


: The two power inputs can be simultaneously used, acting as









backup for each other. Alternatively, you can use either power input.
















AC input

Rated voltage range: 100 VAC to 240 VAC, 50 Hz or 60 Hz






Input voltage range: 90 VAC to 264 VAC, 47 Hz to 63 Hz































Rated voltage range: 10.8 VDC to

Rated voltage range: –52VDC to–55









13.2 VDC
































RPS500-A3(+12 V/10.5 A output,

RPS1000-A3(–54V/25 A output,







power cable 0404A03C)

power cable 0404A053)

































: Please use the external RPS power supply units recommended









by 3Com only.



































4210G 24-Port:


4210G 48-Port:










Static power


36 W


55 W


55 W


78 W






4210G NT


4210G NT






















24-Port:35 W


48-Port:54 W










































550 W when RPS is


















not connected, with















495 W, with


180 W of system









4210G 24-Port:


4210G 48-Port:



power consumption











125 W of













and 370 W of PoE








103 W


145 W


system power





consumption (full










4210G NT


4210G NT















920 W when RPS is








24-Port:62 W


48-Port:110 W


and 370 W of













connected, with 180















PoE power

















W of system power



































consumption and


















740 W of PoE power












Cooling system

Four fans for heat dissipation

Six fans for heat dissipation






















0°C to 45°C (32°F to 113°F)




















































Relative humidity


10% to 90%



























































For details about the external RPS power supply units, see the RPS500-A3 User Manual and

RPS1000-A3User Manual.


Introduction to Switch 4210G

Switch 4210G 24-Port
Front Panel

Figure 1-1 Front panel of the Switch 4210G24-PortEthernet switch

(1)10/100/1000 Base-Tauto-sensingEthernet port

(2)10/100/1000 Base-Tauto-sensingEthernet port status LED


1000Base-XSFP port


1000Base-XSFP port status LED


Console port




Port mode LED (Mode)


System status LED (PWR)


RPS status LED (RPS)

(10) Interface module 1 status LED (MOD1)

(11) Interface module 2 status LED (MOD2)

(12) Port status LED mode switching button

Rear Panel

Figure 1-2 Rear panel of the Switch 4210G24-PortEthernet switch


















































































































































































































































































































































































































































































































































































































































































































































































AC power input





(2) RPS power input (shipped with a protective cover)







Grounding screw





(4) Interface module slot 1 (MOD1)







Interface module slot 2 (MOD2)




























































































































The Switch 4210G 24-Portprovides two interface module slots on its rear panel. Each slot is installed with a filler panel when the switch is shipped. You can select one or two interface modules for your switch as needed. SeeOptional Interface Modules on page1-15 for the interface module models supported by the Switch 4210G, and seeConnecting the RPS Power Cord on page3-14 for the installation of interface modules.