3Com Switch 3CR17660 91 User Manual

3Com® Switch 4200G Family  
Getting Started Guide  
4200G 12-Port (3CR17660-91)  
4200G 24-Port (3CR17661-91)  
4200G 48-Port (3CR17662-91)  
www.3Com.com  
Part No. 10014914 Rev. AA  
Published July 2006  
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DOWNLOAD THE LATEST  
SOFTWARE AND DOCUMENTATION  
FOR YOUR 3COM SWITCH  
Thank you for purchasing a 3Com Switch 4200G Family switch. As part  
of our commitment to bringing you the most capable and dependable  
network equipment, 3Com offers free software maintenance updates  
and documentation updates on our website.  
To obtain the most up-to-date operating software and user  
documentation for the Switch 4200G, point your web browser to:  
www.3Com.com/4200G and select the “Support and Registration” link.  
Please note that you must register your 3Com switch to receive the  
software upgrade. To register, point your web browser to  
eSupport.3Com.com.  
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CONTENTS  
Before You Start  
About Your CD-ROM  
Conventions 10  
9
LEDs 18  
Switch 4200G — Rear View Detail 19  
Power Socket 19  
10 Gbps Interface Slots 19  
Default Settings 20  
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Web Management Over the Network 49  
Setting Up SNMP Management V1 or V2 50  
4 PROBLEM SOLVING  
TFTP 68  
FTP 68  
XModem 69  
Upgrading the Bootrom 70  
Bootrom Upgrade using TFTP 71  
Bootrom Upgrade using FTP 71  
Bootrom Upgrade using XModem 72  
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8
CONTENTS  
Important Safety Information 76  
Linformation de Sécurité Importante 78  
Wichtige Sicherheitsinformationen 81  
B PIN-OUTS  
Null Modem Cable 89  
C TECHNICAL SPECIFICATIONS  
Purchase Value-Added Services 97  
Troubleshoot Online 98  
Telephone Technical Support and Repair 98  
Contact Us 99  
INDEX  
REGULATORY NOTICES  
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ABOUT THIS GUIDE  
This guide provides all the information you need to install and use the  
3Com® Switch 4200G Family.  
The guide is intended for use by network administrators who are  
responsible for installing and setting up network equipment;  
consequently, it assumes a basic working knowledge of LANs (Local Area  
Networks).  
Before You Start  
This section contains information about the documents and CD-ROM  
that accompany your Switch 4200G.  
Release Notes The Release Notes provide important information about the current  
software release, including new features, modifications, and known  
problems. You should read the Release Notes before installing the Switch  
in your network.  
If the information in the Release Notes differ from the information in this  
guide, follow the instructions in the Release Notes.  
About Your CD-ROM The CD-ROM contains the following:  
Online documentation for the Switch 4200G—refer to Related  
Documentation on page 11 for details.  
A link to 3Com Network Director software.  
A number of other useful links.  
Most user guides and Release Notes are available in Adobe Acrobat  
Reader Portable Document Format (PDF) or HTML on the 3Com  
World Wide Web site:  
http://www.3com.com/  
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10  
ABOUT THIS GUIDE  
Conventions  
Table 1 and Table 2 list conventions that are used throughout this guide.  
Table 1 Notice Icons  
Icon  
Notice Type  
Description  
Information note Information that describes important features or  
instructions  
Caution  
Information that alerts you to potential loss of data or  
potential damage to an application, system, or device  
Warning  
Information that alerts you to potential personal injury  
Table 2 Text Conventions  
Convention Description  
Screen displays This typeface represents information as it appears on the  
screen.  
Syntax  
The word “syntax” means that you must evaluate the syntax  
provided and then supply the appropriate values for the  
placeholders that appear in angle brackets. Example:  
To change your password, use the following syntax:  
system password <password>  
In this example, you must supply a password for <password>.  
Commands  
The word “command” means that you must enter the  
command exactly as shown and then press Return or Enter.  
Commands appear in bold. Example:  
To display IP information, enter the following command:  
display ip interface br  
The words “enter”  
and “type”  
When you see the word “enter” in this guide, you must type  
something, and then press Return or Enter. Do not press  
Return or Enter when an instruction simply says “type.”  
Keyboard key names If you must press two or more keys simultaneously, the key  
names are linked with a plus sign (+). Example:  
Press Ctrl+Alt+Del  
Words in italics  
Italics are used to:  
Emphasize a point.  
Denote a new term at the place where it is defined in the  
text.  
Identify menu names, menu commands, and software  
button names. Examples:  
From the Help menu, select Contents.  
Click OK.  
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Related Documentation  
11  
Related  
Documentation  
In addition to this guide, Switch 4200G documentation set includes the  
following:  
Switch 4200G Configuration Guide  
This guide contains information on the features supported by your  
Switch and how they can be used to optimize your network. It is  
supplied in PDF format on the CD-ROM that accompanies the Switch.  
Switch 4200G Quick Reference Guide  
This guide contains:  
a list of the features supported by the Switch.  
a summary of the command line interface commands for the  
Switch. This guide is also available under the Help button on the  
web interface.  
Switch 4200G Command Reference Guide  
This guide provides detailed information about the web interface and  
command line interface that enable you to manage the Switch. It is  
supplied in PDF format on the CD-ROM that accompanies the Switch.  
Release Notes  
These notes provide information about the current software release,  
including new features, modifications, and known problems. The  
Release Notes are supplied in hard copy with your Switch.  
Accessing Online To access the documentation on the CD-ROM supplied with your Switch,  
Documentation do the following:  
1 Insert the CD-ROM into your CD-ROM drive. If your PC has auto-run  
enabled, a splash screen will be displayed automatically.  
2 Select the Documentation section from the contents page.  
If the online documentation is to be accessed from a local drive or server,  
you will need to access the CD-ROM contents using the root directory  
and copy the files from the CD-ROM to a suitable directory.  
The PDF Command Reference Guide is stored in the Docsdirectory on  
the CD-ROM.  
The PDF Configuration Guide is stored in the Docsdirectory of the  
CD-ROM.  
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12  
ABOUT THIS GUIDE  
Documentation  
Comments  
Your suggestions are very important to us. They will help make our  
documentation more useful to you. Please e-mail comments about this  
document to 3Com at:  
Please include the following information when commenting:  
Document title  
Document part number (on the title page)  
Page number (if appropriate)  
Example:  
Part Number 10014914AA  
Switch 4200G Family Getting Started Guide  
Page 21  
Please note that we can only respond to comments and questions about  
3Com product documentation at this e-mail address. Questions related to  
technical support or sales should be directed in the first instance to your  
network supplier.  
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1
INTRODUCING THE  
SWITCH 4200G FAMILY  
This chapter contains introductory information about the Switch 4200G  
and how it can be used in your network. It covers summaries of hardware  
and software features and also the following topics:  
About the Switch 4200G  
Switch 4200G—Front View Detail  
Switch 4200G — Rear View Detail  
Default Settings  
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14  
CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILY  
About the Switch  
4200G  
The Switch 4200G Family are mixed media devices which consist of:  
12, 24 or 48 10/100/1000BASE-T ports  
Four 1000BASE-X SFP ports  
One option module slot for a 10 Gigabit Ethernet port module on the  
Switch 4200G 12-Port. Requires an optional XFP.  
Two option module slots for a 10 Gigabit Ethernet port module on the  
Switch 4200G 24-Port and the Switch 4200G 48-Port. Requires an  
optional XFP.  
One RJ-45 connector for serial management  
The Switch 4200G Family provides high-performance workgroups with a  
backbone to server connection. You can also add the Switch 4200G  
Family to any SuperStack® system as your network grows.  
For information about using the software features of the Switch, refer to  
the “Command Reference Guide” and the “Configuration Guide” on the  
CD-ROM that accompanies the Switch.  
Summary of Table 3 summarizes the hardware features that are supported by the  
Hardware Features Switch 4200G.  
Table 3 Hardware Features  
Feature  
Switch 4200G  
Addresses  
Up to 8,000 supported  
Supported on all ports  
Store and Forward  
Auto-negotiation  
Forwarding Modes  
Duplex Modes  
Auto MDI/MDIX  
Half and full duplex on all front panel ports  
Supported on all ports. If fiber SFP transceivers are used,  
Auto MDIX is not supported.  
Flow Control  
In full duplex operation all ports are supported  
Traffic Prioritization  
Supported (using the IEEE Std 802.ID, 1998 Edition):  
Eight traffic queues per port  
Ethernet, Fast  
Auto-negotiating 10/100/1000BASE-T ports  
Ethernet, and Gigabit  
Ethernet Ports  
SFP Ethernet Ports  
Supports fiber Gigabit Ethernet long-wave (LX),  
long-haul (LH70) and copper (T) transceivers in any  
combination.  
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Switch 4200G—Front View Detail  
15  
Table 3 Hardware Features (continued)  
Feature  
Switch 4200G  
19-inch rack or standalone mounting  
Mounting  
Clustering  
Up to 16 units can be linked together (15 members and  
1 commander)  
Switch  
4200G—Front View  
Detail  
Figure 1 Switch 4200G 12-Port—front view  
Unit Status  
Display  
Port Status LEDs  
Console  
Port  
SFP Status  
LEDs  
Power LED  
PWR  
Mode  
Green=Speed  
Yellow=Duplex  
MOD  
MOD  
1
2
10/100/1000BASE-T  
Mode  
Switch  
10Gbps  
Interface Slot  
LEDs  
Mode LED  
Gigabit SFP Ports  
10/100/1000BASE-T Ports  
Figure 2 Switch 4200G 24-Port—front view  
Unit Status  
Display  
Console  
Port  
SFP Status  
LEDs  
Port Status LEDs  
Power LED  
Speed: (100Base-TX) Green  
=
100Mbps Yellow  
=
10Mbps  
Duplex: Green  
=
Full Duplex, Yellow  
=
Half Duplex  
Power: Green  
=
Delivering Power, Yellow  
=
Fault, Flashing Green  
=
Over Budget  
PWR  
26  
27/25  
28/26  
25  
Mode  
Green=Speed  
Yellow=Duplex  
MOD  
MOD  
1
2
10/100/1000BASE-T  
Mode  
Switch  
10Gbps  
Interface Slot  
LEDs  
Mode LED  
Gigabit SFP Ports  
10/100/1000BASE-T Ports  
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16  
CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILY  
Figure 3 Switch 4200G 48-Port—front view  
Unit Status  
Display  
Mode  
Switch  
Console Port  
Power  
LED  
Mode  
LED  
Port Status LEDs  
Mode  
Green=Speed  
Yellow=Duplex  
Power:Green  
=
Deliverng Power. Yellow=Fault, Flashing Green=Over Budget  
Speed:Green  
=
100Mbps, Yellow  
=
10Mbps Duplex:Green  
=
Full Duplex, Yellow  
=
Half Duplex  
49  
50  
51/49  
52/50  
PWR  
MOD1  
MOD1  
10/100/1000BASE-T Ports  
Gigabit SFP  
Ports  
10Gbps  
Interface Slot  
LEDs  
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot  
be used as standard traditional telephone sockets, or to connect the unit to a  
traditional PBX or public telephone network. Only connect RJ-45 data  
connectors, network telephony systems, or network telephones to these  
sockets.  
Either shielded or unshielded data cables with shielded or unshielded  
jacks can be connected to these data sockets.  
10/100/1000BASE-T The Switch 4200G has 12, 24 or 48 auto-negotiating  
Ports 10BASE-T/100BASE-TX ports configured as Auto MDIX (crossover). When  
auto-negotiation is enabled these ports automatically operate in MDI or  
MDIX mode as needed. These ports provide 10/100/1000 Mbps  
full-duplex connections to other Gigabit Ethernet devices. Full-duplex  
allows packets to be transmitted and received simultaneously which  
effectively doubles the potential throughput of a link.  
These ports require either straight-through or cross-over Category 5  
cables with RJ-45 connectors at each end. The maximum UTP cable  
length is 100 m (328 ft) over Category 5 cable.  
The 10/100/1000BASE-T ports will auto-negotiate the appropriate speed.  
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Switch 4200G—Front View Detail  
17  
1000BASE-X SFP Ports SFP (Small Form Factor Pluggable) ports support fiber Gigabit Ethernet  
long-wave (LX), long-haul (LH70) and copper (T) SFP Transceivers in any  
combination. This offers you the flexibility of using SFP transceivers to  
provide connectivity between the Switch and remote 1000 Mbps  
workgroups or to create a high capacity aggregated link backbone  
connection.  
The default state for these ports is auto-negotiation enabled, where the  
speed, duplex and flow control modes are negotiated. As the speed and  
duplex modes are fixed by the media type, only the flow control is  
negotiated with the link partner. Alternatively, auto-negotiation can be  
disabled (except 1000BASE-T which auto-negotiation is mandatory) and  
the flow control setting can be manually configured.  
Console Port The console port allows you to connect a terminal and perform remote or  
local out-of-band management. As the console port on the Switch is an  
RJ-45 port, you will need to connect an RJ-45 to DB9 converter cable to a  
standard null modem cable in order to connect a terminal.  
Unit Status Display The Status Display is a seven segment display visible on the front of the  
Switch. The Status Display indicates switch status conditions such as the  
unit number, POST test ID, and software upgrade information. In the  
unlikely event of a hardware fault occurring, the Status Display may be  
used to help diagnose the problem. For information on using the Status  
Display for problem solving, see “Solving Problems Indicated by LEDs” on  
page 54.  
Table 4 Status Display  
Display  
Mode LED Color  
Description  
Digit (1–9)  
Digit (0–8)  
Mode LED flashing green  
Mode LED flashing red  
POST (power-on startup tests) running.  
POST failure. Digit indicates ID of failed test.  
0
1
2
3
4
5
6
7
8
POST test OK  
CPU error  
Switch chip error  
RAM error  
Flash error  
Port error  
PHY error  
Packet memory error  
CPLD error  
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18  
CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILY  
Table 4 Status Display (continued)  
Display  
Mode LED Color  
Description  
Rotating bar segment  
Mode LED flashing green  
Mode LED steady red  
Software download in progress.  
Fan failure detected.  
Flashing “F”  
Flashing “t”  
“C”  
Mode LED flashing red  
Switch is too hot; temperature is critical.  
Switch is clustered Commander unit.  
Switch is clustered Candidate unit.  
Switch is un-clustered.  
Mode LED green or yellow  
Mode LED green or yellow  
Mode LED green or yellow  
“c”  
“S”  
“1”  
LEDs Table 5 lists LEDs visible on the front of the Switch, and how to read their  
status. For information on using the LEDs for problem solving, see  
“Solving Problems Indicated by LEDs” on page 54.  
Table 5 LED Behavior  
LED Color  
PWR LED  
Green  
Indicates  
The Switch is powered-up and operating normally.  
Green flashing Self Test (POST) or Software Download is in progress.  
Yellow flashing One or more ports have failed POST.  
Red  
Off  
The Switch has failed its Power On Self Test.  
The Switch is not receiving power or there is a fault with the  
Power Supply Unit.  
Mode LED  
Speed Green  
10/100 Port Speed and Activity, Gigabit SFP Status and  
Activity, or Stack Status and Activity.  
Duplex Yellow  
10/100 Duplex and Activity, Gigabit SFP Duplex and  
Activity, or Stack Activity.  
10/100/1000BASE-T Port LEDs  
Speed Green  
A high speed (1000 Mbps) link is present, blinking off for  
every packet received or transmitted.  
Yellow  
A low speed link is present, blinking off for every packet  
received or transmitted.  
Yellow Flashing The port has failed POST.  
Off  
No link is present.  
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Switch 4200G — Rear View Detail  
19  
Table 5 LED Behavior (continued)  
LED Color  
Indicates  
Duplex Green  
Full duplex, blinking off for every packet received or  
transmitted.  
Yellow  
Half duplex, blinking off for every packet received or  
transmitted.  
Yellow flashing The port has failed POST.  
Off  
No link is present.  
1000BASE-X Port SFP Port LEDs  
Speed Green A high speed (1000 Mbps) link is present.  
Yellow Flashing Port failed POST.  
Off  
No link is present.  
Duplex Green  
Full duplex packets are being transmitted/received on the  
port.  
Yellow  
Half duplex packets are being transmitted/received on the  
port.  
Yellow flashing Port failed POST.  
Off  
No link is present.  
Switch 4200G —  
Rear View Detail  
Figure 4 Switch 4200G—rear view  
MOD 1  
MOD 2  
10Gbps Interface  
10Gbps Interface  
AC Power Input  
Slot 1  
Slot 2  
Power Socket The Switch automatically adjusts its power setting to any supply voltage  
in the range 100–240 VAC.  
10 Gbps Interface The MOD 1 and MOD 2 interface slots accept the 10 Gbps SFP modules.  
Slots  
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20  
CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILY  
Default Settings  
Table 6 shows the default settings for the Switch 4200G Family.  
Table 6 Default Settings  
Feature  
Switch 4200G  
Enabled  
Automatic IP Configuration  
Port Status  
Enabled  
Port Speed  
Auto-negotiated  
Auto-negotiated  
Auto-negotiated  
Enabled  
Duplex Mode  
Flow Control  
Broadcast Storm Control  
Virtual LANs (VLANs)  
All ports belong to the untagged Default VLAN  
(VLAN 1) with IEEE Std 802.1Q-1998 learning  
operational  
Management VLAN  
Fixed as VLAN 1 on 4200G units. Can be any  
VLAN for 4200G units.  
Link Aggregation Control  
Protocol (LACP)  
Disabled per port  
IP Multicast Filtering  
Filtering enabled  
Rapid Spanning Tree Protocol Enabled  
Fast Start  
Enabled on front panel ports  
RMON Alarm  
Traffic Prioritization  
Enabled  
All ports prioritize NBX VoIP traffic (LAN and IP).  
All ports set to “best effort” for all other traffic.  
Port Security  
Disabled per port  
Disabled  
Configuration Save and  
Restore  
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2
INSTALLING THE SWITCH  
Switch 4200G. It covers the following topics:  
Rack-mounting  
Placing Units On Top of Each Other  
The Power-up Sequence  
SFP Operation  
Choosing the Correct Cables  
WARNING: Safety Information. Before installing or removing any  
components from the Switch 4200G or carrying out any maintenance  
procedures, you must read the safety information provided in Appendix A  
of this guide.  
AVERTISSEMENT: Consignes de sécurité. Avant d'installer ou d'enlever  
tout composant du Switch 4200G ou d'entamer une procédure de  
maintenance, lisez les informations relatives à la sécurité qui se trouvent  
dans l'Appendice A de ce guide.  
VORSICHT: Sicherheitsinformationen. Bevor Sie Komponenten aus  
dem Switch 4200G entfernen oder dem Switch 4200G hinzufuegen oder  
Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen,  
die in Appendix A (Anhang A) in diesem Handbuch aufgefuehrt sind.  
ADVERTENCIA: Información de seguridad. Antes de instalar o extraer  
cualquier componente del Switch 4200G o de realizar tareas de  
mantenimiento, debe leer la información de seguridad facilitada en el  
Apéndice A de esta guía del usuario.  
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22  
CHAPTER 2: INSTALLING THE SWITCH  
AVVERTENZA: Informazioni di sicurezza. Prima di installare o  
rimuovere qualsiasi componente dal Switch 4200G o di eseguire qualsiasi  
procedura di manutenzione, leggere le informazioni di sicurezza riportate  
nell'Appendice A della presente guida per l'utente.  
OSTRZEŻENIE: Informacje o zabezpieczeniach. Przed instalacją lub  
usunięciem jakichkolwiek elementów z product lub przeprowadzeniem  
prac konserwacyjnych należy zapoznać się z informacjami o  
bezpieczeństwie zawartymi w Załączniku A niniejszego podręcznika.  
Package Contents  
Switch unit  
CD-ROM (includes documentation related to your Switch)  
Getting Started Guide (this guide)  
Release Notes  
Unit Information Labels  
Warranty Information  
Power Cord  
Console Cable (RJ-45)  
2 x Mounting brackets  
4 x Screws  
4 x Rubber feet  
Choosing a Suitable  
Site  
The Switch is suited for use either free standing on a desktop, or  
mounted in a standard 19-inch equipment rack (for example, in a wiring  
closet or equipment room). A rack-mounting kit containing two  
mounting brackets is supplied with the Switch.  
CAUTION: Ensure that the ventilation holes are not obstructed.  
When deciding where to position the Switch, ensure that:  
Cabling is located away from:  
sources of electrical noise such as radios, transmitters and  
broadband amplifiers.  
power lines and fluorescent lighting fixtures  
The Switch is accessible and cables can be connected easily.  
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Rack-mounting  
23  
Water or moisture cannot enter the case of the Switch.  
Air flow is not restricted around the Switch or through the vents in the  
side of the Switch. 3Com recommends that you provide a minimum of  
25mm (1in.) clearance.  
Air temperature around the Switch does not exceed 40 °C (104 °F).  
If the Switch is installed in a 19-inch rack or closed assembly its local air  
temperature may be greater than room ambient temperature.  
The air is as free from dust as possible.  
The unit is installed in a clean, air conditioned environment.  
No more than four Switch units are placed on top of one another, if  
the units are free-standing.  
The Switch is situated away from sources of conductive (electrical)  
dust, for example laser printers.  
The AC supply used by the Switch is separate to that used by units  
that generate high levels of AC noise, for example air conditioning  
units and laser printers.  
Rack-mounting  
The Switch 4200G is 1 rack unit (1U) high and will fit in most standard  
19-inch racks.  
CAUTION: Disconnect all cables from the Switch before continuing.  
Remove all self adhesive pads from the underside of the Switch if they  
have been fitted.  
To rack-mount your Switch:  
1 Place the Switch the right way up on a hard flat surface, with the front  
facing towards you.  
2 Locate a mounting bracket over the mounting holes on one side of the  
front of the Switch, as shown in Figure 5.  
You can also rack mount your Switch using the mounting holes at the  
rear of the Switch.  
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24  
CHAPTER 2: INSTALLING THE SWITCH  
Figure 5 Fitting a Bracket for Rack-Mounting  
3 Insert the two screws and tighten with a suitable screwdriver.  
You must use the screws supplied with the mounting brackets. Damage  
caused to the unit by using incorrect screws invalidates your warranty.  
4 Repeat step 2 and step 3 for the other side of the Switch.  
5 Insert the Switch into the 19-inch rack and secure with suitable screws  
(not provided). Ensure that ventilation holes are not obstructed.  
6 Connect network cabling.  
7 Finally place a unit information label on the unit in an easily accessible  
position. The unit information label shows the following:  
3Com product name of the Switch  
3Com 3C number of the Switch  
Unique MAC address (Ethernet address) of the Switch  
Serial number of the Switch  
You may need this information if you contact 3Com Technical Support.  
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Placing Units On Top of Each Other  
25  
Placing Units On  
Top of Each Other  
If the Switch units are free-standing, up to four units can be placed one  
on top of the other. If you are mixing a variety of 3Com equipment, the  
smaller units must be positioned at the top.  
If you are placing Switch units one on top of the other, you must use the  
self-adhesive rubber feet supplied. Apply the feet to the underside of  
each Switch, sticking one in the marked area at each corner. Place the  
Switch units on top of each other, ensuring that the feet of the upper unit  
sit fully on the lower unit.  
The Power-up  
Sequence  
The following sections describe how to get your Switch 4200G  
powered-up and ready for operation.  
Powering-up the Use the following sequence of steps to power-up the Switch.  
Switch 4200G  
1 Plug the power cord into the power socket at the rear of the Switch.  
2 Plug the other end of the power cord into your power outlet.  
The Switch powers-up and runs through its Power On Self Test (POST),  
which takes approximately one minute.  
Checking for Correct During the Power On Self Test, all ports on the Switch are disabled and  
Operation of LEDs the LEDs light. The PWR LED will flash green during the POST.  
When the POST has completed, check the PWR LED to make sure that  
your Switch is operating correctly. Table 7 shows possible colors for the  
LED.  
Table 7 PWR LED Colors  
Color  
State  
Green  
The Switch is powered-up and operating normally.  
The Switch has failed its Power On Self Test (POST).  
Some ports have failed POST*  
Red  
Yellow flashing  
Off  
The Switch is not receiving power.  
* In this event you can still use the Switch using the remaining ports that have passed the  
POST.  
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26  
CHAPTER 2: INSTALLING THE SWITCH  
If there is evidence of a problem, see “Solving Problems Indicated by  
LEDs” on page 54 for a list of suggested solutions.  
CAUTION: The Switch has no ON/OFF switch; the only method of  
connecting or disconnecting mains power is by connecting or  
disconnecting the power cord.  
SFP Operation  
The following section describes how to insert an SFP transceiver into an  
SFP port.  
SFP transceivers are hot-insertable and hot-swappable. You can remove  
them from and insert them into any SFP port without having to power  
down the Switch.  
Approved SFP The following list of approved Gigabit Ethernet SFP transceivers is correct  
Transceivers at the time of publication.  
3CSFP92 SFP (1000BASE-LX)  
3CSFP97 SFP (1000BASE-LH70)  
3CSFP93 SFP (1000BASE-T)  
To access the latest list of approved SFP transceivers for the Switch on the  
3Com Corporation World Wide Web site, enter this URL into your  
internet browser:  
http://www.3com.com  
Inserting an SFP To be recognized as valid, the SFP transceiver must have the following  
Transceiver characteristics:  
1000BASE-LX SFP transceiver  
Use this transceiver to connect Gigabit Ethernet SFP ports on the  
Switch directly to a single-mode fiber-optic cable or to multimode  
fiber using a conditioned launch cable.  
1000BASE-LH70 SFP transceiver  
Use this transceiver to connect Gigabit Ethernet SFP ports on the  
Switch directly to a single-mode fiber-optic cable.  
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SFP Operation  
27  
1000BASE-T SFP transceiver  
This transceiver uses Category 5 copper cabling with RJ-45 connectors  
and supports segment lengths of up to 100 m (328 ft).  
If the SFP transceiver is faulty, it will not operate within the Switch. See  
“Solving Hardware Problems” on page 55.  
3Com recommends that you only use SFPs supplied by 3Com. If the SFP  
transceiver is invalid it will not be recognized by the Switch.  
Use the following sequence of steps to activate the SFP ports:  
1 The SFP transceiver is keyed and there is only one way in which it can be  
installed correctly. It is not necessary to power-down your Switch.  
2 Hold the transceiver so that the connector is toward you and the product  
label is visible. Ensure the wire release lever is closed (in the upright  
position).  
3 Gently slide the transceiver into the SFP port until it clicks. If the  
transceiver does not click into place, remove it, turn it over and re-insert.  
4 Remove the plastic protective cover if fitted.  
Figure 6 Inserting an SFP Transceiver  
Product  
label  
Suitable port  
on host Switch  
5 Use and appropriate cable to connect the transceiver to a suitable device.  
6 Check the LEDs on the front of the Switch to ensure that it is operating  
correctly. Refer to “LEDs” on page 18 for more information.  
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28  
CHAPTER 2: INSTALLING THE SWITCH  
Removing an SFP If you wish to remove the transceiver (it is not necessary to power-down  
Transceiver your Switch):  
1 Disconnect the cable from the transceiver.  
2 Move the wire release lever downwards until it is pointing toward you.  
3 Pull the wire release lever toward you to release the catch mechanism;  
the transceiver will then easily slide out.  
Choosing the  
Correct Cables  
All of the ports on the Switch are Auto-MDIX, that is they have a  
cross-over capability. These ports can automatically detect whether to  
operate in MDI or MDIX mode. Therefore you can make a connection to  
one of the ports with a straight-through (MDI) or a cross-over cable  
(MDIX).  
The Auto-MDIX feature only operates when auto-negotiation is enabled.  
If auto-negotiation is disabled, all the Switch ports are configured as  
MDIX (cross-over). If you want to make a connection to another MDIX  
port, you need a cross-over cable. Many ports on workstations and  
servers are configured as MDI (straight-through). If you want to make a  
connection to an MDI port, you need to use a standard straight-through  
cable. See Table 8.  
3Com recommends that you use at least Category 5 twisted pair  
cable—the maximum segment length for this type of cable is 100 m (328  
ft.).  
Table 8 Cables required to connect the Switch to other devices if  
auto-negotiation is disabled  
Cross-over Cable  
Straight-through Cable  
Switch to Switch  
(MDIX to MDIX)  
Switch to Hub  
(MDIX to MDIX)  
Switch to PC (NIC)  
(MDIX to MDI)  
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Choosing the Correct Cables  
29  
CAUTION: If you want to install the Switch using a Category 5E or  
Category 6 cable, 3Com recommends that you briefly connect the cable  
to a grounded port before connecting network equipment. If you do not,  
the cable’s Electrostatic Discharge (ESD) may damage the Switch's port.  
You can create a grounded port by connecting all wires at one end of a  
UTP cable to an earth ground point, and the other end to a female RJ-45  
connector located, for example, on a Switch rack or patch panel. The  
RJ-45 connector is now a grounded port.  
3Com recommends that you use Category 5 twisted pair cable—the  
maximum segment length for this type of cable is 100 m (328 ft).  
Choosing the Correct All of the ports on the front of the Switch 4200G 28-Port are  
Cables for the 100BASE-FX MT-RJ multi-mode ports. The MT-RJ port is a small form  
Switch 4200G factor fiber-optic port with the transmit and receive fibers in the same  
cable. Unlike many fiber-optic systems, only one MT-RJ cable is needed to  
connect two MT-RJ ports together.  
To connect a front panel port to another 100BASE-FX MT-RJ multi-mode  
port, or to a patch panel, a single MT-RJ multi-mode pinless jumper cable  
is required. Since standard MT-RJ cables are cross-over cables, no  
Auto-MDIX sensing is required. The maximum cable length is 2 kilometers  
(1.24 miles).  
CAUTION: Do not connect pinned MT-RJ connectors into any port on the  
Switch 4200G as this may damage the unit. The ports have locator pins  
fitted and are designed for standard (pinless) connectors.  
To connect a front panel port to a 100BASE-FX single mode port, or to a  
port that does not have an MT-RJ connector, an adaptor will be required.  
It is not possible to connect a front panel port to a 1000BASE-FX port.  
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30  
CHAPTER 2: INSTALLING THE SWITCH  
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3
SETTING UP FOR MANAGEMENT  
To make full use of the features offered by your Switch, and to change  
and monitor the way it works, you have to access the management  
software that resides on the Switch. This is known as managing the  
Switch.  
Managing the Switch can help you to improve the efficiency of the  
This chapter explains the initial set up of the Switch and the different  
methods of accessing the management software to manage a Switch. It  
Setting Up Web Interface Management  
Setting Up SNMP Management V1 or V2  
Default Users and Passwords  
Configuration Conversion Utility  
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32  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Methods of  
Managing a Switch  
To manage your Switch you can use one of the following methods:  
Command line interface management  
Command line interface management using SSH  
Web interface management  
SNMP management  
Command Line Each Switch has a command line interface (CLI) that allows you to  
Interface manage the Switch from a workstation, either locally using a console port  
Management connection (see Figure 7), or remotely over the network (see Figure 8).  
Figure 7 CLI Management using the Console Port  
Workstation  
(with terminal emulation  
software installed)  
Switch  
Console Port  
Connection  
Console Cable  
Figure 8 CLI Management over the Network  
Switch  
Workstation  
Connect over Network  
via Telnet  
Refer to “Setting Up Command Line Interface Management” on  
page 46.  
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Methods of Managing a Switch  
33  
There are two main views in the CLI:  
User View  
This view is shown when you first connect to the Switch and shows  
basic information about operation and statistics. The prompt for user  
view is <S4200G>.  
System View  
This view enables you to configure the system parameters. To display  
this view, from user view enter system-view. The prompt for system  
view is [S4200G].  
Command Line The Switch 4200G supports Secure Shell version 1.5 (SSHv1.5), allowing  
Interface secure access to the Command Line Interface of the Switch.  
Management using  
If you use SSH to administer your Switch and the network traffic is  
intercepted, no passwords or configuration information will be visible in  
the data. To securely administer the Switch using the Command Line  
Interface you need a third party SSH client.  
SSH  
Web Interface Each Switch has an internal set of web pages that allow you to manage  
Management the Switch using a Web browser remotely over an IP network (see  
Figure 9).  
Figure 9 Web Interface Management over the Network  
Switch  
Workstation  
Connect over Network  
via web browser  
Refer to “Setting Up Web Interface Management” on page 48.  
SNMP Management You can manage a Switch using any network management workstation  
running the Simple Network Management Protocol (SNMP) as shown in  
Figure 10. For example, you can use the 3Com Network Director  
software, available from the 3Com website.  
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34  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Figure 10 SNMP Management over the Network  
SNMP Network Management  
Workstation  
Switch  
Connect over Network  
using SNMP  
Refer to “Setting Up SNMP Management V1 or V2” on page 50.  
Setting Up  
Overview  
This section gives an overview of what you need to do to get your Switch  
set up and ready for management when it is in its default state. The  
whole setup process is summarized in Figure 11. Detailed procedural  
steps are contained in the sections that follow. In brief, you need to:  
Configure IP information manually for your Switch or view the  
automatically configured IP information  
Prepare for your chosen method of management  
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Setting Up Overview  
35  
Figure 11 Initial Switch Setup and Management Flow Diagram  
Power Up the Switch.  
IP Information is automatically configured  
using DHCP  
See page 36  
Do you want to manually  
configure the IP information?  
No  
Yes  
How do you want to view the automatically  
configured IP information?  
How do you want to connect to the Switch?  
Connect to the con-  
Connect to a front panel port  
and use the Web Interface or  
Command Line  
Use 3Com Network  
Director (3ND).  
See page 44  
Connect to the console  
port and use the  
Command Line  
Interface.  
sole port and use the  
Command Line Inter-  
face.  
Interface.  
See page 37  
See page 37  
See page 45  
How do you want to manage your Switch? See page 32  
SNMP  
See page 50  
Command Line Interface  
Web Interface  
Connect using the  
console port.  
See page 46  
Connect over the  
network using Telnet.  
See page 46  
Connect over the  
network.  
See page 49  
CAUTION: To protect your Switch from unauthorized access, you must  
change all three default passwords as soon as possible, even if you do not  
intend to actively manage your Switch. For more information on default  
users and changing default passwords, see “Default Users and  
Passwords” on page 50.  
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36  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
IP Configuration You can use one of the following methods to allocate IP information to  
your Switch (essential if you wish to manage your Switch across the  
network).  
Manual IP Configuration  
When you configure the IP information, the Switch remembers the  
information that you enter until you change it again.  
You should use the Manual IP configuration method if:  
you do not have a DHCP or BootP server on your network, or  
you want to remove the risk of the IP address ever changing, or  
your DHCP or BootP server does not allow you to allocate static IP  
addresses. (Static IP addresses are necessary to ensure that the Switch  
is always allocated the same IP information.)  
IP information manually. This makes management simpler and more  
reliable as it is not dependent on a DHCP or BootP server, and eliminates  
the risk of the IP address changing.  
To manually enter IP information for your Switch, work through the  
“Manually Configuring IP Information” on page 37.  
Automatic IP Configuration using DHCP  
By default the Switch tries to configure itself with IP Information without  
requesting user intervention. It tries to obtain an IP address from a DHCP  
server on the network.  
When using automatic IP configuration it is important that the IP address  
of the Switch is static, otherwise you will not know what the IP address is  
and it will be difficult to manage. Most DHCP servers allow static IP  
addresses to be configured so that you know what IP address will be  
allocated to the Switch. Refer to the documentation that accompanies  
your DHCP server.  
For a detailed description of how automatic IP configuration operates,  
please refer to the Configuration Guide on the CD-ROM that  
accompanies your Switch or the 3Com Web Site.  
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Manually Configuring IP Information  
37  
You should use the automatic IP configuration method if:  
your network uses DHCP to allocate IP information, or  
flexibility is needed. If the Switch is deployed onto a different subnet,  
it will automatically reconfigure itself with an appropriate IP address,  
instead of you having to manually reconfigure the Switch.  
If the Switch is not allocated with an automatic IP address, the IP  
configuration will be blank or shown as ‘’’’.  
If you use the automatic IP configuration method, you need to discover  
the automatically allocated IP information before you can begin  
management. Work through the “Viewing Automatically Configured IP  
Information” on page 44.  
Preparing for Once your Switchs initial set up is complete you can set up your chosen  
Management management method as described in “Methods of Managing a Switch”  
on page 32.  
For detailed information about the specific web interface operations and  
command line interface commands and problem solving, refer to the  
“Switch 4200G Command Reference Guide” on the CD-ROM that is  
supplied with the Switch or on the 3Com Web site.  
Manually  
Configuring IP  
Information  
You can manually configure the Switch IP information in the following  
ways:  
Connecting to the console port  
Connect a workstation using a console cable to the console port of  
the Switch. You can then manually enter IP information using the  
command line interface (CLI).  
Connecting to a front panel port  
Connect a workstation using an Ethernet cable to a front panel port  
of the Switch. You can then manually enter IP information using the  
web interface or the command line interface (CLI).  
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38  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Connecting to the To set up your Switch manually you can make a connection to the console  
Console Port port, (this example describes a local connection to the console port,  
rather than one using a modem). You can do this whilst the Switch is  
offline, that is, before you connect the Switch to a network, or whilst the  
Switch is online, that is, connected to a network.  
Prerequisites  
A workstation with terminal emulation software installed, such as  
Microsoft Hyperterminal. This software allows you to communicate  
with the Switch using the console port directly.  
Documentation supplied with the terminal emulation software.  
The console cable (RJ-45) supplied with your Switch.  
You can find pin-out diagrams for the cable in Appendix on page 89.  
You need to have the following so that you can manually set up the  
Switch with IP information:  
IP address  
subnet mask  
default gateway  
management VLAN ID, normally set to the default value (1)  
Connecting the Workstation to the Switch  
1 Connect the workstation to the console port using the console cable as  
shown in Figure 12.  
Figure 12 Connecting a Workstation to the Switch using the Console Port  
Workstation  
(with terminal emulation  
software installed)  
Switch  
Console Port  
Connection  
Console Cable  
To connect the cable:  
a Attach the RJ-45 connector on the cable to the console port of the  
Switch.  
b Attach the other end of the cable to the workstation and tighten the  
retaining screws on the cable to prevent it from being loosened.  
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Manually Configuring IP Information  
39  
2 Open your terminal emulation software and configure the COM port  
settings to which you have connected the cable. The settings must be set  
to match the default settings for the Switch, which are:  
19,200 baud (bits per second)  
8 data bits  
no parity  
1 stop bit  
no hardware flow control  
Refer to the documentation that accompanies the terminal emulation  
software for more information.  
3 Power up the Switch. The Power on Self Test (POST) will now be  
performed.  
Setting Up the Switch with IP Information  
You are now ready to manually set up the Switch with IP information  
using the command line interface.  
1 The command line interface login sequence begins as soon as the Switch  
detects a connection to its console port.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
2 At the login and password prompts, enter adminas your user name and  
press Return and at the password prompt press Return again. If you have  
logged on correctly, <S4200G>should be displayed as shown in  
Figure 13.  
Once you have logged in you will automatically be in User View.  
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40  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Figure 13 User View Login  
3 Enter the system-viewcommand and Enter.  
To confirm that you are in the System View, the following should be  
displayed:  
[S4200G]  
Enter interface vlan 1and Enter.  
4 Enter the IP address and subnet mask for the Switch as follows:  
ip address xxx.xxx.xxx.xxx mmm.mmm.mmm.mmm  
and Enter.  
(where xxx.xxx.xxx.xxx is the IP address and mmm.mmm.mmm.mmm is  
the subnet mask of the Switch)  
5 Select the quitcommand and enter the default gateway for the Switch:  
ip route-static 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the default gateway)  
6 From the User View, enter the savecommand to save the configuration  
to your Switch as the configuration is not saved automatically when the  
Switch is powered down.  
The initial set up of your Switch is now complete and the Switch is ready  
for you to set up your chosen management method. See “Methods of  
Managing a Switch” on page 32.  
If you do not intend to use the command line interface using the console  
port to manage the Switch, you can disconnect the serial cable and close  
the terminal emulator software.  
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Connecting to a Front To set up your Switch manually you can, alternatively, make a connection  
Panel Port to a front panel port. To do this you will need an IP address, refer to  
“Viewing Automatically Configured IP Information” on page 44 for more  
information.  
The procedure described in this section assumes the unit has been  
powered up in standalone mode.  
Prerequisites  
A workstation running a suitable operating system—refer to  
“Choosing a Browser” on page 48.  
A Network Interface Card (NIC).  
A Category 5 twisted pair Ethernet cable with RJ-45 connectors at  
both ends.  
A suitable Web browser—refer to “Choosing a Browser”on page 48.  
Existing IP address of the Switch.  
You need to have the following so that you can manually set up the  
Switch with IP information:  
IP address  
subnet mask  
default gateway  
management VLAN ID, normally set to the default value (1)  
Connecting the Workstation to the Switch  
1 Connect the workstation to a front panel port using an Ethernet cable as  
shown in Figure 14.  
Figure 14 Connecting a Workstation to the Switch using a Front Panel Port  
Switch  
Workstation  
(with a Network  
Interface Card  
installed)  
Front Panel  
Port Connection  
Ethernet Cable  
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42  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
To connect the cable:  
a Attach an RJ-45 connector at one end of the Ethernet cable to the  
Network Interface Card (NIC) in the workstation.  
b Connect the RJ-45 connector at the other end of the cable to one of  
the front panel ports on the Switch.  
Do not interconnect the Switch to any other unconfigured Switch.  
Setting Up the Switch with IP Information  
You are now ready to manually set up the Switch with IP information. You  
can do this using the Web interface or the command line interface (CLI)  
using telnet.  
Using the Web Interface  
1 Power-up the Switch. This takes approximately one minute.  
2 Open a suitable Web browser and enter the IP address of your Switch in  
the Address field.  
If there is no response, wait for one minute then re-enter the IP address.  
If a pop up message appears displaying download and install simplified  
Chinese information, click Cancel.  
3 At the login and password prompts, enter adminas your user name and  
press Return and at the password prompt (default user name and  
password) press Return again. If you have logged on correctly, the Device  
View of the Switch is displayed.  
4 To enter basic setup information for the Switch, select Administration > IP  
Setup and then follow the wizard through various system screens to enter  
the IP address and subnet mask that you want the Switch to use when it  
is connected to the network. The final page displays a summary of the  
5 Select Save Configuration to save the configuration to your Switch.  
The initial set up of your Switch is now complete and the Switch is ready  
for you to set up your chosen management method. See “Methods of  
Managing a Switch” on page 32.  
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Manually Configuring IP Information  
43  
Using Command Line Interface using Telnet  
1 To start a Telnet session to the unit, click Start in Microsoft Windows  
95/98/2000/NT/XP.  
a Click Run.  
b In the dialogue box that appears type the IP address of the unit, that  
is: Telnet xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
c Click OK.  
2 Press Enter to open a login prompt.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
3 At the login and password prompts, enter adminas your user name and  
press Return at the password prompt. If you have logged on correctly,  
<S4200G>is displayed as shown in the example in Figure 15.  
Figure 15 User View Login using Telnet  
4 Enter the system-viewcommand and Enter.  
5 Enter interface vlan 1and Enter.  
6 Enter the IP address and subnet mask for the Switch as follows:  
ip address xxx.xxx.xxx.xxx mmm.mmm.mmm.mmm  
(where xxx.xxx.xxx.xxx is the IP address and mmm.mmm.mmm.mmm is  
the subnet mask of the Switch)  
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44  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
7 Enter the default gateway for the Switch:  
ip route-static 0.0.0.0 0.0.0.0 xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the default gateway)  
8 From the User View, enter the savecommand to save the configuration  
to your Switch as the configuration is not saved automatically when the  
Switch is powered down.  
The initial set up of your Switch is now complete and the Switch is ready  
for you to set up your chosen management method. See “Methods of  
Managing a Switch” on page 32.  
Viewing  
If you allow the Switch to automatically configure its own IP information  
you need to discover and view the IP information before you can begin to  
manage the Switch. You can discover the IP information in two ways:  
Automatically  
Configured IP  
Information  
Using 3Com Network Director  
This application will auto-discover the Switch and display the  
automatically allocated IP information assigned to the Switch.  
Connecting to the Console Port  
Connect a workstation using a console cable to the console port of  
the Switch. You can then view the IP information automatically  
assigned to the Switch using the command line interface (CLI).  
Using 3Com Network You can use the 3Com Network Director application (available from the  
Director 3Com website) to discover the automatically allocated IP information.  
1 Connect your Switch to the network.  
2 Power-up the Switch and wait for two minutes.  
3 Launch 3Com Network Director and run the Auto-discovery wizard.  
3Com Network Director will auto-discover the new Switch and display  
the IP information that has been automatically allocated to the Switch.  
Most DHCP and BootP servers allow static IP addresses to be configured  
so that you know what IP address the Switch will be given. Refer to the  
documentation that accompanies your DHCP or BootP server.  
If your network does not have a DHCP or BootP server, the workstation  
running 3Com Network Director must be on the same subnet as the  
Switch, because Auto-IP addresses are non-routable.  
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Viewing Automatically Configured IP Information  
45  
Connecting to the Alternatively, you can view the automatically configured IP information  
Console Port using the command line interface (CLI) through a connection to the  
console port. (This example describes a local connection to the console  
port, rather than a remote one using a modem.) For further information  
on connecting using the console port see “Connecting the Workstation  
to the Switch”on page 38.  
Viewing IP Information using the Console Port  
You are now ready to view the automatically allocated IP information  
using the command line interface.  
1 Connect your Switch to the network using the Ethernet cable. As soon as  
a network connection is made the Switch begins the automatic IP  
configuration process.  
The automatic IP configuration process usually completes within one  
minute.  
2 The command line interface login sequence begins as soon as the Switch  
detects a connection to its console port.  
If the login prompt does not begin immediately, press Return a few times  
until it starts.  
3 At the login and password prompts, enter adminas your user name and  
press Return at the password prompt. If you have logged on correctly,  
<S4200G>is displayed as shown in the example in Figure 16.  
Figure 16 User View Login  
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46  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
4 Enter display ip interface brto view a summary of allocated IP  
addresses.  
The initial set up of your Switch is now complete and the Switch is ready  
for you to set up your chosen management method. See “Methods of  
Managing a Switch” on page 32.  
If you do not intend to use the command line interface using the console  
port to manage the Switch, you can logout, disconnect the serial cable  
and close the terminal emulator software.  
Setting Up  
This section describes how you can set up command line interface  
management using a local console port connection or over the network.  
Command Line  
Interface  
Management  
User Interface User interface configuration is provided by the Switch to configure and  
Overview manage the port data. There are two types of user interfaces:  
AUX User Interface—used to log in to your Switch using the console port.  
VTY User Interface—used to Telnet to the Switch. The Switch can have  
up to five VTY user interfaces.  
CLI Management To manage a Switch using the command line interface using the local  
using the Console console port connection:  
Port  
1 Ensure you have connected your workstation to the console port correctly  
as described in “Connecting to the Console Port” on page 38.  
2 Your Switch is now ready to continue being managed and/or configured  
CLI Management over To manage a Switch using the command line interface over a network  
the Network using Telnet:  
1 Ensure you have already set up the Switch with IP information as  
described in “Methods of Managing a Switch” on page 32.  
2 Check that you have the IP protocol correctly installed on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP protocol is installed.  
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Setting Up Command Line Interface Management using SSH  
47  
3 Check you can communicate with the Switch by entering a ping  
command at the DOS prompt in the following format:  
c:\ ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If you get an error message, check that your IP information has been  
entered correctly and the Switch is powered up.  
4 To open a Telnet session using the DOS prompt, enter the IP address of  
the Switch that you wish to manage in the following format:  
>telnet xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If opening a Telnet session using third party software you will need to  
enter the IP address in the format suitable for that software.  
5 At the login and password prompts, enter adminas your user name and  
press Return at the password prompt (or the password of your choice if  
you have already modified the default passwords).  
If the login prompt does not display immediately, press Return a few  
times until it starts.  
6 If you have logged on correctly, the Switch you wish to manage is  
displayed as <S4200G>, as shown in Figure 13 on page 40.  
Setting Up  
Command Line  
Interface  
Management using  
SSH  
This section describes how you can set up Command Line Interface  
To manage a Switch using the command line interface over a network  
using SSH:  
1 Ensure you have already set up the Switch with IP information as  
described in “Methods of Managing a Switch” on page 32.  
2 Check that you have the IP protocol correctly installed on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP protocol is installed.  
3 Check you can communicate with the Switch by entering a ping  
command at the DOS prompt in the following format:  
c:\ ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If you get an error message, check that your IP information has been  
entered correctly and the Switch is powered up.  
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48  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
The switch automatically generates a host key pair when it is powered up  
for the first time, or after any reset to factory defaults. Host key  
generation may take a while, during which time SSH connections to the  
switch will be refused.  
4 Install an SSH client application on the workstation you want to use to  
access the switch.  
3Com recommends the following SSH clients; PuTTY, OpenSSH and SSH  
Communications Security Corp Secure Shell.  
5 Open an SSH session and access the Switch using the Switchs IP address  
and port number.  
The first time you connect to the switch the client will ask you to confirm  
that the host key is correct for the device.  
6 The Switch and the SSH client will authenticate each other and a secure  
connection will be established.  
7 Enter your usual username and password to access the CLI commands.  
For increased security please change the default password when using  
SSH for the first time.  
For further information on generating a host key on your switch and  
transferring keys to the Switch using TFTP server please refer to the  
Configuration Guide that is supplied with your Switch.  
Setting Up Web  
Interface  
Management  
over the network.  
Prerequisites  
Ensure you have already set up the Switch with IP information as  
described in “Methods of Managing a Switch” on page 32.  
Ensure that the Switch is connected to the network using a Category  
5 twisted pair Ethernet cable with RJ-45 connectors.  
A suitable Web browser.  
Choosing a Browser  
To display the web interface correctly, use one of the following Web  
browser and platform combinations:  
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Setting Up Web Interface Management  
49  
Table 9 Supported Web Browsers and Platforms  
Windows  
2000  
Windows  
Windows XP Server 2003  
Red Hat  
Linux 9  
Solaris  
7/9  
Netscape 7.1  
Internet Explorer 5.5  
Internet Explorer 6.0  
Mozilla 1.4  
For the browser to operate the web interface correctly, JavaScript™ and  
Cascading Style Sheets must be enabled on your browser. These features  
are enabled on a browser by default. You will only need to enable them if  
you have changed your browser settings.  
Web Management To manage a Switch using the web interface over an IP network:  
Over the Network  
1 Check that you have the IP protocol correctly installed on your  
management workstation. You can check this by trying to browse the  
World Wide Web. If you can browse, the IP protocol is installed.  
2 Check you can communicate with the Switch by entering a ping  
command at the DOS prompt in the following format:  
c:\ ping xxx.xxx.xxx.xxx  
(where xxx.xxx.xxx.xxx is the IP address of the Switch)  
If you get an error message, check that your IP information has been  
entered correctly and the Switch is powered up.  
3 Open your web browser and enter the IP address of the Switch that you  
wish to manage in the URL locator, for example, in the following format:  
http://xxx.xxx.xxx.xxx  
4 At the login and password prompts, enter adminas your user name and  
press Return at the password prompt (or the password of your choice if  
you have already modified the default passwords).  
5 Click on the Device View button to display the web management options.  
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50  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
Setting Up SNMP  
Management V1 or  
V2  
Any network management application running the Simple Network  
Management Protocol (SNMP) can manage a Switch if:  
The correct Management Information Bases (MIBs) are installed on the  
management workstation.  
The management workstation is connected to the Switch using a port  
in VLAN 1 (the Default VLAN). By default, all ports on the Switch are in  
VLAN 1.  
You can use the 3Com Network Director application that is available from  
the 3Com website to provide SNMP management for your Switch. If you  
use 3Com Network Director it automatically loads the correct MIBs and  
necessary files onto your workstation.  
Prerequisites  
Documentation supplied with the SNMP network management  
application software.  
The default read community string is public. To change this setting in  
System View, enter display snmp community.  
The default write community string is private. To change this setting in  
System View, enter display snmp community.  
To manage your Switch using an SNMP network management  
application, you need to specify SNMP community strings for the users  
defined on the Switch. You can do this using the command line interface  
system management snmp communitycommand. Refer to the  
command line interface section of the “SuperStack 4 Switch Command  
Reference Guide” for more information.  
SNMP V3 is on as default. All commands are in snmp menu in System  
View.  
Default Users and  
Passwords  
If you intend to manage the Switch using the web interface or the  
command line interface, or to change the default passwords, you need to  
log in with a valid user name and password. The Switch has three default  
user names, and each user name has a different password and level of  
access. These default users are listed in Table 10.  
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Configuration Conversion Utility  
51  
CAUTION: To protect your Switch from unauthorized access, you must  
change all three default passwords as soon as possible, even if you do not  
intend to actively manage your Switch.  
Table 10 Default Users  
User  
Name  
Default  
Password Access Level  
monitor monitor  
monitor  
The user can view all manageable parameters, except  
special/security features, but cannot change any manageable  
parameters  
manager manager  
manager  
The user can access and change the operational parameters  
but not special/security features  
admin  
(no  
password)  
security  
The user can access and change all manageable parameters  
Use the admin default user name (no password) to login and carry out  
initial Switch setup.  
To set a password for the admin user in the CLI, enter the following from  
system view:  
[S4200G]local-user admin <cr>  
[S4200G-luser-admin]password simple xxxxxxxx  
(where xxxxxxxxis your chosen password).  
Save the configuration in the User View.  
For information on the lost password procedure please refer to the  
Configuration Guide that is supplied with your Switch.  
Configuration  
Conversion Utility  
The 3Com Switch 4200G Configuration Conversion Utility (CCU) enables  
you to convert the key configuration parameters from a range of 3Com  
SuperStack II and SuperStack 3 devices to the configuration file format  
used by your Switch 4200G unit. The utility provides conversion for a  
number of Switch features  
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52  
CHAPTER 3: SETTING UP FOR MANAGEMENT  
To download the CCU package, select the CCU link on the CD that  
accompanies your Switch 4200G. Alternatively, the CCU download and  
further information is available at:  
http://www.3com.com/switchmigration/  
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4
PROBLEM SOLVING  
with the operation of your Switch. There is also an explanation of IP  
The topics covered are:  
Solving Problems Indicated by LEDs  
Solving Hardware Problems  
Solving Communication Problems  
Solving Fabric Formation Problems  
If you experience a problem that is not listed here, it may be included in  
the Support section of the Switch 4200G Command Reference Guide on  
the CD-ROM that accompanies your Switch.  
For Technical Support information, see Appendix D.  
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54  
CHAPTER 4: PROBLEM SOLVING  
Solving Problems  
Indicated by LEDs  
If the LEDs on the Switch indicate a problem, refer to the list of suggested  
solutions below.  
The PWR LED does not light  
Check that the power cable is firmly connected to the Switch and to the  
supply outlet. If the connection is secure and there is still no power, you  
may have a faulty power cord or an internal fault. Firstly, check the power  
cord by:  
testing it in another device.  
connecting a working power cord to the ‘problem’ device then  
contact your supplier for advice.  
On powering-up, the PWR LED lights Red  
The Switch unit has failed its Power On Self Test (POST) because of an  
internal problem. The fault type will be indicated on the unit LEDs.  
Contact your supplier for advice.  
On powering-up, the PWR LED is flashing yellow  
A port has failed and has been automatically disabled. You can verify this  
by checking that the Port LED is quickly flashing Yellow. If a port fails, the  
Switch passes its Power On Self Test and continues to operate normally.  
A Port LED is flashing yellow  
The port has failed and has been automatically disabled. The Switch  
passes its Power On Self Test and continues to operate normally, even if  
one or more ports are disabled.  
A link is connected and yet the Port LED does not light  
Check that:  
The Switch and the device at the other end of the link (or cable) are  
connected securely.  
The devices at both ends of the link are powered-up  
The quality of cable is satisfactory  
Auto-negotiation settings are the same at both ends.  
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Solving Hardware Problems  
55  
Auto-negotiation problems will occur with 10BASE-T or 100BASE-T  
where auto-negotiation is disabled and incorrect cables are being used  
(cross-over or straight)  
Auto-negotiation problems will occur with fiber if:  
The Receiver (RX) and Transceiver (TX) cable connectors are  
swapped  
Fibers are broken  
Auto-negotiation differs at either end (a link appears at the ‘fixed’  
end and not at the auto-negotiation end)  
Solving Hardware  
Problems  
In the rare event of your Switch unit experiencing a hardware failure,  
refer to the list of suggested solutions below.  
A fan failure warning message is received  
Your Switch has a fan monitoring system that will generate fan failure  
warning messages. Fan failure could potentially reduce the lifetime of the  
Switch. The monitoring system polls the fan status at periodic intervals  
while the unit is powered up.  
If one fan has failed in the Switch, a warning message will be generated  
in the following ways:  
Unit LED  
The seven segment display will show a green flashing ‘f’.  
RMON Trap  
If configured, an RMON trap is generated and sent to the  
management workstation.  
Command Line Interface  
An indication of a general hardware failure is provided through the  
Top level menu displayed when logging on to the CLI. For more  
detailed information about the failure select the display  
logbuffer command.  
Web interface  
An indication of fan failure is provided through the Device Summary  
table for the specific unit. In addition all Summary tables turn red to  
indicate the fan failure.  
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56  
CHAPTER 4: PROBLEM SOLVING  
If a fan failure warning message is generated:  
1 Power off the unit.  
2 Check that the air vents are not obstructed.  
3 Power cycle the unit. To do this, remove and reconnect the AC mains  
supply. If another fan failure warning message is generated using the  
Command Line Interface or the Web interface, return the unit to 3Com.  
Unit fails, no SNMP fan failure message is received  
1 Power cycle the unit. To do this, remove and reconnect the AC mains  
supply.  
2 Check the command line interface (display logbuffer command)  
to determine whether a thermal shutdown has occurred.  
3 If no, return the unit:  
If yes, check that:  
The air vents are not obstructed.  
The ambient temperatures and environmental conditions meet those  
specified in Appendix C.  
4 Power cycle the unit. If a further thermal shutdown occurs, and all  
Error message indicating that the SFP transceiver is invalid  
The Switch has identified that the SFP does not meet the minimum  
requirements for the Switch and has disabled the port. To correct this  
problem, completely remove the SFP and replace it with a 3Com  
approved SFP. See “Approved SFP Transceivers” on page 26.  
Error message indicating that the SFP transceiver is faulty  
To correct this problem, completely remove the SFP and then reinsert it.  
Alternatively, insert another identical SFP. If the problem persists, contact  
3Com Technical Support.  
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Solving Communication Problems  
57  
Solving  
If you experience communication problems with the Switch, ensure that:  
Communication  
Problems  
The Switch IP address and Management VLAN ID has been  
configured.  
If the Switch is separated from your management application by a  
router, ensure that the default gateway IP address within the Switch is  
the same as the IP address of the router.  
The Switchs IP address has been entered correctly in your network  
management application (such as 3Com Network Director).  
The following is a brief overview of IP addressing, and how to obtain a  
registered IP address.  
IP Addressing  
To be managed correctly, each device on your network (for example a  
Switch or Hub) must have a unique IP address. IP addresses have the  
format n.n.n.n where n is a decimal number between 0 and 255. An  
example IP address is 192.168.100.8.  
The IP address is split into two parts:  
The first part (‘192.168.100’ in the example) identifies the network on  
which the device resides  
The second part (‘.8’ in the example) identifies the device within the  
network  
The natural subnet mask for this example is 255.255.255.0.  
If your network has a connection to the external IP network, that is, you  
access the Internet, you must apply for a registered IP address.  
How do you obtain a registered IP Address?  
The IP registration system ensures that every IP address used is unique; if  
you do not have a registered IP address, you may be using an identical  
address to someone else and your network will not operate correctly.  
InterNIC Registration Services is the organization responsible for  
supplying registered IP addresses. The following contact information is  
correct at time of publication:  
World Wide Web site: http://www.internic.net  
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58  
CHAPTER 4: PROBLEM SOLVING  
If your IP network is internal to your organization only, that is, you do not  
access the Internet, you may use any arbitrary IP address as long as it is  
not being used by another device on your network. 3Com suggests you  
use addresses in the range 192.168.0.0 to 192.168.255.255 with a  
subnet mask of 255.255.255.0.  
These suggested IP addresses are part of a group of IP addresses that  
have been set aside specially for use ‘in house’ only.  
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5
UPGRADING SOFTWARE  
This chapter describes how to upgrade the software in your  
Switch 4200G. It covers the following topics:  
Upgrading from the Command Line Interface  
Upgrading from the Bootrom Interface  
Upgrading the Bootrom  
Upgrade methods You can upgrade your Switch 4200G using several different methods:  
Using the Command Line Interface is an easy and quick way. Either an  
TFTP server or an FTP server can be used.  
Upgrades can also be done through the boot menu using either TFTP,  
FTP, or Xmodem. Xmodem is the slowest choice because it relies on  
the consoles serial port.  
Note: If you need a TFTP or FTP server, we offer TFTP/FTP servers on  
www.3Com.com. Search for “tftp server”. The applications are located on  
the link to “3Com Software Library - Utilities for 32 bit Windows”. These  
applications run on Windows platforms.  
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60  
CHAPTER 5: UPGRADING SOFTWARE  
Upgrading from the  
Command Line  
Interface  
This section describes how to upgrade files to your Switch from the  
Command Line Interface (CLI).  
The basic procedure is to check that you have enough space available in  
flash memory, backup your existing Switch software, and then upgrade  
the Switch software. The following sections describe these steps in detail.  
Check Flash Space Before upgrading the software to your Switch from the CLI, it is  
Available important to check the contents of the flash to ensure that there is  
enough space to download the new files.  
The flash space needed for the new files is approximately 5.5 MB.  
1 To check the contents of the flash, logon to your Switch either using a  
telnet connection or directly using the console to display the User View in  
the CLI and enter the following:  
<4200G> dir unit1>flash:  
A file list similar to the following is displayed:  
Directory of unit1>flash:/  
1 (*) -rw- 4586799 Apr 06 2000 18:55:31 s3t03_01_00s56.app  
2 (*) -rw- 890179 Apr 06 2000 18:56:51 s3v01_00.web  
3
4
-rw- 296336 Apr 06 2000 19:01:23 s3u01_00.btm  
-rw- 3333 Apr 02 2000 00:00:29 3comoscfg.def  
15367 KB total (9582 KB free)  
(*) -with main attribute (b) -with backup attribute  
(*b) -with both main and backup attribute  
The file system listing may also contain files called topology.top and  
configuration files (file suffix .cfg).  
2 Any additional files should be considered for deletion to allow maximum  
space for downloading the new files. To delete a file from the list enter:  
<4200G> delete/unreserved unit1>flash:/filename  
CAUTION: Do not delete the topology.topfile, or any configuration  
files (file suffix .cfg).  
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Upgrading from the Command Line Interface  
61  
3 The /unreservedoption will cause the file to be deleted from both the  
flash and the recycle-bin. To check that deleted files have been removed  
from the recycle-bin enter the following:  
<4200G> reset recycle-bin unit1>flash:/  
If the recycle-bin is empty the following is displayed:  
% Recycle bin in this directory is empty  
Backup Switch The following steps enable you to backup your Switch. (You can also  
Software backup these files to a TFTP or FTP server.)  
1 To back up the default configuration file on your Switch, enter:  
[4200G] copy unit1>flash:/3ComOScfg.def  
unit1>flash:/030100cfg.def  
2 To back up the active configuration file on your Switch, enter:  
[4200G] copy unit1>flash:/3ComOScfg.cfg  
unit1>flash:/030100cfg.cfg  
3 To back up the Web user interface file on your Switch, enter:  
[4200G] copy unit1>flash:/s3v01_00.web  
unit1>flash:/030100http.web  
4 To back up the application file on your Switch, enter:  
[4200G] copy unit1>flash:/s3701_00.app  
unit1>flash:/030100app.app  
5 To back up the bootrom file on your Switch, enter:  
[4200G] copy unit1>flash:/s3u01_00.btm  
unit1>flash:/030100boot.btm  
Upgrade Using TFTP To upgrade software to your Switch using TFTP do the following:  
1 To download the application file, enter:  
[4200G] tftp aaa.aaa.aaa.aaa get s3t03_01_00s56.app  
(where aaa.aaa.aaa.aaa is the IP address of the TFTP server)  
s3tindicates the Switch filename, see Table 11 for further details:  
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62  
CHAPTER 5: UPGRADING SOFTWARE  
Table 11 Switch 4200G Filenames  
Filename Prefix/Suffix  
s3t / .app  
Switch  
Switch 4200G software  
s3u / .btm  
Switch 4200G bootrom software  
s3v / .web  
Switch 4200G web management software  
2 To download the Web user interface file, enter:  
[4200G] tftp aaa.aaa.aaa.aaa get http.web  
3 To download the default configuration file, enter:  
[4200G] tftp aaa.aaa.aaa.aaa get 3ComOScfg.def  
4 To download the bootrom file, enter:  
[4200G] tftp aaa.aaa.aaa.aaa get s3u01_00.btm  
The bootrom firmware may not require upgrading for every software  
upgrade, therefore there may not be a new bootrom (.btm) file to  
download.  
Command Line Interface Switch Setup  
1 To set the Switch to boot from the new software you have downloaded,  
enter the following:  
[4200G] boot boot-loader  
unit1>flash:/s3t03_01_00s56.app  
2 To set the Switch to load the new bootrom firmware, enter:  
[4200G] boot bootrom unit1>flash:/s3u01_00.btm  
The following prompt is displayed:  
This will update Bootrom on unit 1. Continue? [Y/N]  
Type Yto update the bootrom.  
3 To set the Switch to load the new web management file, enter:  
[4200G] boot web-package s3v01_00.web main  
4 You will now need to reboot the Switch. The Switch will upgrade the  
bootrom firmware and boot from the specified software .appfile.  
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Upgrading from the Command Line Interface  
63  
After the update is complete and you have verified that everything is  
working, the files that were saved in the backup phase can be deleted  
from the file system.  
Upgrade Using FTP To upgrade your Switchs software using FTP do the following:  
(via network port)  
1 Backup the existing switch software files. See “Backup Switch Software”.  
2 Verify that the 4200G can contact the FTP server, use ping:  
[4200G] ping aaa.aaa.aaa.aaa  
(where aaa.aaa.aaa.aaa is the IP address of the FTP server)  
3 Enter the following command from User View:  
[4200G] ftp aaa.aaa.aaa.aaa  
(where aaa.aaa.aaa.aaa is the IP address of the FTP server)  
If the FTP server has been successfully located, the following information  
is displayed:  
Trying...  
Press CTRL+K to abort  
Connected  
Information on your FTP server is displayed, logon with your username  
and password.  
4 Passive mode is the default mode for the FTP client on the Switch. To  
disable passive mode type:  
[ftp] undo pas  
The display will show % Passive is off  
5 Type [ftp] binand press Enter.  
6 To download the application file, enter:  
[ftp] get s3t03_01_00s168.app  
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64  
CHAPTER 5: UPGRADING SOFTWARE  
The following information is displayed if the download has been  
successful:  
200 PORT command successful.  
150 Opening ASCII mode data connection for vrpcfg.def(10986  
bytes).......226 Transfer complete.  
FTP: 10986 byte(s) received in 8.046 second(s) 1000.00  
byte(s)/sec.  
7 To download the bootrom file, enter:  
[ftp] get s3u01_00.btm  
8 To download the web management file, enter:  
[ftp] get s3v01_00.web  
9 Exit FTP by typing: [ftp] bye.  
10 To install the new bootrom code, enter:  
[4200G] boot bootrom flash:/s3u01_00.btm  
Type ywhen prompted:  
This will update Bootrom on unit 1. Continue? [Y/N] y  
Upgrading Bootrom, please wait...  
Upgrade Bootrom succeeded!  
11 To install the new application code, enter:  
[4200G] boot boot-loader flash:/s3t03_01_00.app  
12 To install the new web management code, enter:  
[4200G] boot webpackage flash:/s3v01_00.web  
13 Enter quitto exit.  
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Upgrading from the Command Line Interface  
65  
XModem (using the To upgrade software to your Switch using XModem do the following:  
console cable)  
1 From the User View, enter:  
xmodem get unit1>flash:/3ComOScfg.def  
The following information is displayed:  
**** WARNING ****  
xmodem is a slow transfer protocol limited to the current  
speed  
settings of the auxiliary ports.  
During the course of the download no exec input/output will  
be available!  
Proceed?[Y/N]y  
Destination filename [unit1>flash:/vrpcfg.def]?  
Before pressing ENTER you must choose ‘YES’ or ‘NO’[Y/N]:  
2 Enter yto display the following message:  
Download with XMODEM protocol...  
...C..  
3 As the file is downloading, start the XModem send file process with  
terminal emulation software, such as Microsoft Hyperterminal.  
When the file download is complete the message Download  
successful!is displayed.  
4 Repeat step 1 to step 3 for each of the remaining files.  
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66  
CHAPTER 5: UPGRADING SOFTWARE  
Upgrading from the  
Bootrom Interface  
This section describes how to upgrade your Switch from the Bootrom  
Interface.  
Introduction When the Switch is running the initial boot phase using the console, the  
following prompt is displayed with a five second countdown timer:  
Press CTRL-B to enter Boot Menu... 4  
followed by a password prompt:  
password:  
1 Select Enter (the default is no password) to display the following boot  
menu:  
BOOT MENU  
1. Download application file to flash  
2. Select application file to boot  
3. Display all files in flash  
4. Delete file from flash  
5. Modify bootrom password  
6. Enter bootrom upgrade menu  
7. Skip current configuration file  
8. Set bootrom password recovery  
9. Set switch startup mode  
0. Reboot  
Enter your choice(0-9):  
2 Enter the appropriate menu number to select a specific option.  
Before upgrading the software to your Switch from the Bootrom  
Interface it is important to check the contents of the flash to ensure that  
there is enough space to download the new files.  
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Upgrading from the Bootrom Interface  
67  
3 Select option 3 from the Boot Menu. A file list similar to the following is  
displayed:  
Boot menu choice: 3  
File Number  
File Size(bytes) File Name  
====================================================  
1
4
snmpboots  
2
151  
private-data.txt  
s3t03_01_00s56.app  
s3t03_01_03_0024.zip  
3comoscfg.def  
3comoscfg.cfg  
[test.cfg]  
3(*)  
4649088  
576218  
10301  
10369  
10369  
4
5
6
7
Free Space: 10469376 bytes  
The current application file is s3t03_01_00s56.app  
(*)-with main attribute; (b)-with backup attribute  
(*b)-with main and backup attribute  
This option displays all the files in flash and also indicates the file that the  
Switch is currently set to boot from (marked with an asterisk). A ‘b’ by the  
file number indicates the file is a backup boot file.  
The files which are required by the Switch are:  
s3t03_01_0024.zip  
3comoscfg.def  
3comoscfg.cfg  
s3t03_01_00s56.app  
The s3t03_01_00s56.appfile is the boot software. The name of this  
file will vary depending on the Switch type and the release version.  
If the filename is in brackets, for example [test.cfg], this indicates  
that the file has been deleted from the CLI but is still present in the  
recycle-bin.  
Any additional files should be considered for deletion to allow maximum  
space for downloading the new files.  
4 To delete a file from the list select option 4 from the Boot Menu and  
select the file number you wish to delete.  
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68  
CHAPTER 5: UPGRADING SOFTWARE  
TFTP To upgrade software to your Switch using TFTP, do the following:  
1 From the Boot Menu, select option 1 (Download application file to flash)  
to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 1 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
3 Enter the file name, Switch IP address and Server IP address to display the  
following:  
Are you sure to download file to flash? Yes or  
No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Attached TCP/IP Interface to netdrv0  
Attaching network interface lo0...done  
Free flash Space: 10456064 bytes  
Writing flash....done!  
Please input the file attribute (main/backup/none):none  
done!  
5 Repeat step 1 tostep 4 for each of the remaining files.  
FTP To upgrade software to your Switch using FTP, do the following:  
1 From the Boot Menu, select option 1 (Download application file to flash)  
to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
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Upgrading from the Bootrom Interface  
69  
2 Select option 2 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
FTP User Name:  
FTP User Password:  
3 Enter the file name, Switch IP address, Server IP address and FTP user  
name and password to display the following:  
Are you sure to download file to flash? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Loading.....done  
Free flash Space: 10456064 bytes  
Writing flash....done!  
Please input the file attribute (main/backup/none):none  
done!  
5 Repeat step 1 to step 4 for each of the remaining files.  
XModem To upgrade software to your Switch using XModem, do the following:  
1 From the Boot Menu, select option 1 (Download application file to flash)  
to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 3 to display the following:  
Please select your download baudrate:  
1. 9600  
2.*19200  
3. 38400  
4. 57600  
5. 115200  
0. Return  
Enter your choice(0-5):  
3 Select option 2 to set the baudrate to 19200.  
You will also need to change the baudrate on Hyperterminal to 19200  
bps and select XModem protocol.  
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70  
CHAPTER 5: UPGRADING SOFTWARE  
4 Press Enter to start the download. The following information is displayed:  
Now please start transfer file with XMODEM protocol  
If you want to exit, Press <Ctrl+X>  
Loading...CCCCCCCCCCCCCCCCCCCCCCCCCCCCC  
5 As the file is downloading, start the XModem send file process with  
terminal emulation software, such as Microsoft Hyperterminal.  
When the download is complete, the following information is displayed:  
Please input the file attribute (main/backup/none):none  
done!  
6 Repeat step 1 to step 5 for each of the remaining files.  
Upgrading the  
Bootrom  
This section describes how to configure which file the Switch uses to boot  
from once the software has been loaded.  
1 From the Boot menu, select option 2 to display the following:  
Select application file to boot:  
1. set application file to boot  
2. set configuration files  
3. set web files  
0. return  
Enter your choice (0-3):  
2 Select option 2 to display a file list similar to the following:  
Boot menu choice: 2  
File Number  
====================================================  
1(*) 4649088 s3t03_01_00s56.app  
File Size(bytes) File Name  
Free Space: 10491904 bytes  
The current application file is s3t03_01_00s56.app  
(*)-with main attribute;(b)-with backup attribute  
(*b)-with both main and backup attribute  
Please input the file number to change:  
An asterisk (*) indicates the current main boot file.  
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Upgrading the Bootrom  
71  
A similar screen will be displayed for the configuration files and the web  
files. In each case, the file is given the attribute “main” or “backup”  
Bootrom Upgrade To upgrade the bootrom firmware from the Boot menu using TFTP do the  
using TFTP following:  
1 From the Boot menu, select option 6 to display the bootrom upgrade  
menu as shown:  
Bootrom update menu:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 1 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
3 Enter the file name, Switch IP address and Server IP address to display the  
following:  
Are you sure to update your bootrom? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Attached TCP/IP interface to netdrv0  
Attaching network interface Io0...done  
Loading.................................  
...............done  
Bootrom updating............done!  
Bootrom Upgrade To upgrade the bootrom firmware from the Boot menu using FTP do the  
using FTP following:  
1 From the Boot menu, select option 6 to display the bootrom upgrade  
menu as shown:  
Bootrom update menu:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
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72  
CHAPTER 5: UPGRADING SOFTWARE  
2 Select option 2 to display the following:  
Load File name:  
Switch IP address:  
Server IP address:  
FTP User Name:  
FTP User Password:  
3 Enter the file name, Switch IP address, Server IP address, FTP user name  
and password to display the following:  
Are you sure to update your bootrom? Yes or No(Y/N)  
4 Enter y and the following information is displayed to indicate the file is  
downloading:  
Attached TCP/IP interface to netdrv0  
Attaching network interface Io0...done  
Loading.................................  
...............done  
Bootrom updating............done!  
Bootrom Upgrade To upgrade the bootrom firmware from the Boot menu using XModem  
using XModem do the following:  
1 From the Boot Menu, select option 6 to display the following:  
1. Set TFTP protocol parameter  
2. Set FTP protocol parameter  
3. Set XMODEM protocol parameter  
0. Return to boot menu  
Enter your choice(0-3):  
2 Select option 3 to display the following:  
Please select your download baudrate:  
1. 9600  
2.*19200  
3. 38400  
4. 57600  
5. 115200  
0. Return  
Enter your choice(0-5):  
3 Select option 2 to set the baudrate to 19200.  
You will also need to change the baudrate on Hyperterminal to 19200  
bps and select XModem protocol.  
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Upgrading the Bootrom  
73  
4 Press Enter to start the download. The following information is displayed:  
Now please start transfer file with XMODEM protocol  
If you want to exit, Press <Ctrl+X>  
Loading  
...CCCCCCCCCCCCCCCCCCCCCCCCCCCCC  
5 As the file is downloading, start the XModem send file process with  
terminal emulation software, such as Microsoft Hyperterminal.  
When the download is complete, the following information is displayed:  
CCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCCdone!  
Bootrom updating.........done!  
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74  
CHAPTER 5: UPGRADING SOFTWARE  
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A
SAFETY INFORMATION  
You must read the following safety information before carrying out any  
installation or removal of components, or any maintenance procedures  
on the Switch 4200G.  
WARNING: Warnings contain directions that you must follow for your  
personal safety. Follow all directions carefully.  
You must read the following safety information carefully before you  
install or remove the unit.  
AVERTISSEMENT: Les avertissements présentent des consignes que vous  
devez respecter pour garantir votre sécurité personnelle. Vous devez  
respecter attentivement toutes les consignes.  
Nous vous demandons de lire attentivement les consignes suivantes de  
sécurité avant d’installer ou de retirer l’appareil.  
VORSICHT: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer  
eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu  
befolgen.  
Sie müssen die folgenden Sicherheitsinformationen’ sorgfältig  
durchlesen, bevor Sie das Gerät installieren oder ausbauen.  
ADVERTENCIA: Las advertencias contienen indicaciones que debe  
respetar por su seguridad personal.  
Siga las indicaciones con cuidado. Antes de instalar o extraer la unidad,  
debe leer detenidamente la siguiente información de seguridad.  
AVVERTENZA: le avvertenze contengono istruzioni indispensabili per  
assicurare la sicurezza personale. Seguire attentamente tutte le  
indicazioni fornite. Prima di installare o rimuovere l'unità, leggere  
attentamente le seguenti informazioni di sicurezza.  
OSTRZEŻENIE: Ostrzeżenia zawierają wskazówki, których należy  
przestrzegać dla własnego bezpieczeństwa. Należy uważnie  
przestrzegać wszystkich wskazówek. Przed instalacją lub demontażem  
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76  
APPENDIX A: SAFETY INFORMATION  
urządzenia należy uważnie przeczytać poniższe informacje o  
bezpieczeństwie.  
Power Cord Set—Japan  
Important Safety Information  
WARNING: Installation and removal of the unit must be carried out by  
qualified personnel only.  
WARNING: If installing the Switch 4200G together (one on top of the  
other) with SuperStack II or SuperStack 3 units that are shallower than  
the 4200G, the Switch 4200G unit must be installed below the shallower  
units.  
WARNING: The unit must be earthed (grounded) or must be connected  
to an earthed power supply to ensure compliance with safety standards.  
WARNING: Power Cord Set:  
This must be approved for the country where it is used:  
U.S.A. and  
Canada  
The cord set must be UL-approved and CSA certified.  
The minimum specification for the flexible cord is:  
No. 18 AWG  
Type SV or SJ  
3-conductor  
The cord set must have a rated current capacity of at least  
10A.  
The attachment plug must be an earth-grounding type  
with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A,  
250V) configuration.  
United  
Kingdom only  
The supply plug must comply with BS1363 (3-pin 13 amp)  
and be fitted with a 5A fuse which complies with BS1362.  
The mains cord must be <HAR> or <BASEC> marked and  
be of type H03VVF3GO.75 (minimum).  
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Important Safety Information  
77  
Europe only:  
The supply plug must comply with CEE 7/7 (“SCHUKO”).  
The mains cord must be <HAR> or <BASEC> marked and  
be of type H03VVF3GO.75 (minimum).  
Denmark  
The supply plug must comply with section 107-2-D1,  
standard DK2-1a or DK2-5a.  
Switzerland  
The supply plug must comply with SEV/ASE 1011.  
WARNING: The appliance coupler (the connector to the unit and not the  
wall plug) must have a configuration for mating with an EN60320/IEC320  
appliance inlet.  
WARNING: The socket outlet must be near to the unit and easily  
accessible.  
WARNING: This unit operates under SELV (Safety Extra Low Voltage)  
conditions according to IEC 60950. The conditions are only maintained if  
the equipment to which it is connected also operates under SELV  
conditions.  
WARNING: France and Peru only:  
This unit cannot be powered from ITsupplies. If your supplies are of IT  
type, this unit must be powered by 230V (2P+T) using an isolation  
transformer ratio 1:1, with the secondary connection point labelled  
Neutral, connected directly to earth (ground).  
Impédance à la terre.  
WARNING: U.K. only:  
If connecting a modem to the console port of the Switch 4200G, only use  
a modem which is suitable for connection to the telecommunications  
system.  
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They cannot  
be used as standard traditional telephone sockets, or to connect the unit to a  
traditional PBX or public telephone network. Only connect RJ-45 data  
connectors, network telephony systems, or network telephones to these  
sockets.  
Either shielded or unshielded data cables with shielded or unshielded  
jacks can be connected to these data sockets.  
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78  
APPENDIX A: SAFETY INFORMATION  
WARNING: Fiber Optic ports—Optical Safety  
Class 1  
LASER PRODUCT  
Never look at the transmit laser while it is powered on. Never look directly  
at the fiber TX port and fiber cable ends when they are powered on.  
L’information de Sécurité Importante  
AVERTISSEMENT: L'installation et la dépose de ce groupe doivent être  
confiés à un personnel qualifié.  
AVERTISSEMENT: Si vous entassez l'unité Switch avec les unités  
SuperStack 4 Hub, l'unité Switch 4200G doit être installée en dessous des  
unités Hub plus étroites.  
AVERTISSEMENT: Vous devez mettre l’appareil à la terre (à la masse) ce  
groupe.  
AVERTISSEMENT: Brancher l’unité à une source de courant mise à la  
terre pour assurer la conformité aux normes de sécurité.  
AVERTISSEMENT: Cordon électrique:  
Il doit être agréé ans le pays d'utilisation:  
Etats-Unis et  
Canada  
Le cordon doit avoir reçu l'homologation des UL et un  
certificat de la CSA  
Le cordon souple doit respecter, à titre minimum, les  
spécifications suivantes :  
calibre 18 AWG  
type SV ou SJ  
à 3 conducteurs  
Le cordon doit être en mesure d'acheminer un courant  
nominal d'au moins 10 A  
La prise femelle de branchement doit être du type à mise à la  
terre (mise à la masse) et respecter la configuration NEMA  
5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V)  
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L’information de Sécurité Importante  
79  
Danemark  
Europe  
La prise mâle d'alimentation doit respecter la section 107-2  
D1 de la norme DK2 1a ou DK2 5a  
La prise secteur doit être conforme aux normes CEE 7/7  
(“SCHKO”)  
LE cordon secteur doit porter la mention <HAR> ou  
<BASEC> et doit être de type HO3VVF3GO.75 (minimum).  
Suisse  
La prise mâle d'alimentation doit respecter la norme SEV/ASE  
1011  
AVERTISSEMENT: Le coupleur d'appareil (le connecteur du groupe et  
non pas la prise murale) doit respecter une configuration qui permet un  
branchement sur une entrée d'appareil EN60320/CEI 320.  
AVERTISSEMENT: La prise secteur doit se trouver à proximité de  
l’appareil et son accès doit être facile.  
AVERTISSEMENT: Lappareil fonctionne à une tension extrêmement  
basse de sécurité qui est conforme à la norme CEI 60950. Ces conditions  
ne sont maintenues que si l'équipement auquel il est raccordé fonctionne  
dans les mêmes conditions.  
AVERTISSEMENT: France et Pérou uniquement:  
Ce groupe ne peut pas être alimenté par un dispositif à impédance à la  
terre. Si vos alimentations sont du type impédance à la terre, ce groupe  
doit être alimenté par une tension de 230 V (2 P+T) par le biais d'un  
transformateur d'isolement à rapport 1:1, avec un point secondaire de  
connexion portant l'appellation Neutre et avec raccordement direct à la  
terre (masse).  
AVERTISSEMENT: Points d’accès RJ-45. Ceux-ci sont protégés par des  
prises de données. Ils ne peuvent pas être utilisés comme prises de  
téléphone conventionnelles standard, ni pour la connection de l’unité à  
un réseau téléphonique central privé ou public. Raccorder seulement  
connecteurs de données RJ-45, systèmes de réseaux de téléphonie ou  
téléphones de réseaux à ces prises.  
Il est possible de raccorder des câbles protégés ou non protégés avec des  
jacks protégés ou non protégés à ces prises de données.  
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80  
APPENDIX A: SAFETY INFORMATION  
AVERTISSEMENT: Ports pour fibres optiques—sécurité sur le plan  
optique.  
Dispositif Laser  
de Classe 1  
Ne regardez jamais le laser d'émission en utilisant un dispositif  
d'agrandissement, tant qu'il est sous tension. Ne regardez jamais  
directement le port TX à fibres optiques et les extrémités des câbles à  
fibres optiques tant qu'ils sont sous tension.  
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Wichtige Sicherheitsinformationen  
81  
Wichtige Sicherheitsinformationen  
VORSICHT: Alle Verfahren die in dieser Anleitung beschrieben werden  
gelten für alle Modelle, sofern nicht anders angegeben. Wo eine  
Vorgehensweise für die Schalter 5500-SI 24 und Schalter 5500-SI 52 gilt  
wird nur der Begriff Schalter verwendet.  
Diese Anleitung ist für Netzwerkadministratoren vorgesehen, die für die  
Installation und das Einstellen von Netzwerkkomponenten verantwortlich  
sind; Erfahrung im Umgang mit LANs (Local Area Networks) wird  
VORSICHT: Die Installation und der Ausbau des Geräts darf nur durch  
Fachpersonal erfolgen.  
VORSICHT: Wenn die Switch 4200G Einheit in einer Stapel mit anderen  
SuperStack 4 Hub Einheiten eingebaut werden soll, muß die Switch  
4200G Einheit unter die schmaleren Hub Einheiten eingebaut werden.  
VORSICHT: Das Gerät muß geerdet sein.  
VORSICHT: Das Gerät muß an eine geerdete Steckdose angeschlossen  
werden, die europäischen Sicherheitsnormen erfüllt.  
VORSICHT: Der Anschlußkabelsatz muß mit den Bestimmungen des  
Landes übereinstimmen, in dem er verwendet werden soll.  
VORSICHT: Der Gerätestecker (der Anschluß an das Gerät, nicht der  
Wandsteckdosenstecker) muß eine passende Konfiguration für einen  
Geräteeingang gemäß EN60320/IEC320 haben.  
VORSICHT: Die Netzsteckdose muß in der Nähe des Geräts und leicht  
zugänglich sein. Die Stromversorgung des Geräts kann nur durch  
Herausziehen des Gerätenetzkabels aus der Netzsteckdose unterbrochen  
werden.  
VORSICHT: Europe  
Das Netzkabel muß vom Typ HO3VVF3GO.75 (Mindestanforderung)  
sein und die Aufschrift <HAR> oder <BASEC> tragen.  
Der Netzstecker muß die Norm CEE 7/7 erfüllen (”SCHUKO”).  
VORSICHT: Der Betrieb dieses Geräts erfolgt unter den  
SELV-Bedingungen (Sicherheitskleinstspannung) gemäß IEC 60950. Diese  
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82  
APPENDIX A: SAFETY INFORMATION  
Bedingungen sind nur gegeben, wenn auch die an das Gerät  
angeschlossenen Geräte unter SELV-Bedingungen betrieben werden.  
VORSICHT: RJ-45-Porte. Diese Porte sind geschützte Datensteckdosen.  
Sie dürfen weder wie normale traditionelle Telefonsteckdosen noch für  
die Verbindung der Einheit mit einem traditionellem privatem oder  
öffentlichem Telefonnetzwerk gebraucht werden. Nur  
RJ-45-Datenanscluße, Telefonnetzsysteme or Netztelefone an diese  
Steckdosen anschließen.  
Entweder geschützte oder ungeschützte Buchsen dürfen an diese  
Datensteckdosen angeschlossen werden.  
VORSICHT: Faseroptikanschlüsse—Optische Sicherheit  
.
Laser Gerät  
der Klasse 1  
Sie sollten die/den eingeschaltete(n) Übertragungs-Laser niemals durch  
eine Vergrößerungseinrichtung betrachten. Schauen Sie niemals direkt  
auf den Lichtwellen-Übertragungsanschluss und die Kabelenden des  
Lichtwellenleiterkabels, während Daten übertragen werden.  
Información de Seguridad Importante  
ADVERTENCIA: La instalación o la extracción de la unidad sólo debe  
llevarla a cabo personal cualificado.  
ADVERTENCIA: Si instala el 4200G en una pila con unidades SuperStack  
II o SuperStack 3 que son más estrechas que el 4200G, la unidad 4200G  
debe instalarse debajo de las unidades más estrechas.  
ADVERTENCIA: La unidad debe tener toma de tierra (conectado a  
tierra).  
ADVERTENCIA: Conecte la unidad a una fuente de alimentación con  
toma de tierra para garantizar el cumplimiento de las normas de  
seguridad.  
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Información de Seguridad Importante  
83  
ADVERTENCIA: Conjunto de cables eléctricos:  
Debe estar homologado para el país donde se utilice:  
EE.UU. y  
Canadá  
El conjunto de cables debe estar homologado por UL y  
tener la certificación CSA.  
La especificación mínima del cable flexible es: Nº 18 AWG  
Tipo SV o SJ Tres conductores  
El conjunto de cables debe tener una capacidad de  
corriente nominal de al menos 10 A.  
El enchufe de conexión debe ser de tipo de toma de tierra  
con una configuración NEMA 5-15P (15 A, 125 V) o NEMA  
6-15P (15 A, 250 V).  
Sólo para el  
Reino Unido  
La toma de alimentación debe cumplir la norma BS1363 (3  
patillas, 13 A) e instalarse con un fusible de 5 A que  
cumpla BS1362.  
El cable de alimentación de red debe tener la marca  
<HAR> o <BASEC> y ser de tipo H03VVF3GO.75  
(mínimo).  
Sólo para  
Europa:  
La toma de alimentación debe cumplir la norma CEE 7/7  
("SCHUKO").  
El cable de alimentación de red debe tener la marca  
<HAR> o <BASEC> y ser de tipo H03VVF3GO.75  
(mínimo).  
Dinamarca  
Suiza  
La toma de alimentación debe cumplir la sección 107-2-D1  
de la norma DK2-1a o DK2-5a  
La toma de alimentación debe cumplir la norma SEV/ASE  
1011.  
ADVERTENCIA: El acoplador del equipo (el conector para la unidad y no  
la toma de la pared) debe tener una configuración que se adapte a una  
entrada del equipo EN60320/IEC320.  
ADVERTENCIA: El enchufe debe estar cerca de la unidad y ser de fácil  
acceso.  
ADVERTENCIA: Esta unidad funciona en condiciones SELV (voltaje  
extrabajo de seguridad) de conformidad con la norma IEC 60950. Las  
condiciones sólo se mantienen si el equipo al que esté conectada la  
unidad también funciona en condiciones SELV.  
ADVERTENCIA: Sólo para Francia y Perú: esta unidad no puede recibir  
corriente de fuentes IT†. Si las fuentes de suministro de corriente son de  
tipo IT, esta unidad debe recibir 230 V (2P+T) a través de un  
transformador aislador con relación 1:1, con el punto de conexión  
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84  
APPENDIX A: SAFETY INFORMATION  
secundario etiquetado como neutro conectado directamente a tierra.  
†Impédance à la terre.  
ADVERTENCIA: Sólo para el Reino Unido: si conecta un módem al  
puerto de consola del 4200G, utilice sólo un módem que sea adecuado  
para la conexión con el sistema de telecomunicaciones.  
ADVERTENCIA: Puertos RJ-45. Son conectores de datos RJ-45 blindados.  
No pueden utilizarse como tomas de teléfono tradicionales estándar ni  
para conectar la unidad a una central de conmutación PBX tradicional ni  
a una red telefónica pública. Conecte sólo conectores de datos RJ-45,  
sistemas de telefonía de red local o teléfonos de red local a estas tomas.  
Pueden conectarse cables de datos blindados o sin blindaje con clavijas  
blindadas o sin blindaje a estos conectores de datos.  
ADVERTENCIA: Puertos de fibra óptica: seguridad óptica  
DISPOSITIVO LÁSER  
DE CLASE 1  
Nunca mire el láser de transmisión a través de una lente de aumento  
mientras está encendido. No mire nunca directamente al puerto de  
transmisión de fibra óptica ni a los extremos del cable de fibra óptica  
mientras estén conectados.  
Importanti Informazioni di Sicurezza  
AVVERTENZA: Le operazioni di installazione e rimozione dell'unità  
devono essere eseguite esclusivamente da personale qualificato.  
AVVERTENZA: Se si installa lo 4200G in uno stack con unità SuperStack  
II o SuperStack 3 più strette del modello 4200G, posizionare lo 4200G  
sotto tali unità.  
AVVERTENZA: L'unità deve disporre di messa a terra.  
AVVERTENZA: Per rispettare gli standard di sicurezza, è necessario  
collegare l'unità a una fonte di alimentazione dotata di messa a terra.  
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Importanti Informazioni di Sicurezza  
85  
AVVERTENZA: Set dei cavi di alimentazione  
Deve essere approvato per il paese in cui viene utilizzato.  
Stati Uniti e  
Canada  
Il cavo deve avere l'approvazione UL e la certificazione CSA  
La specifica minima per il cavo flessibile è: N. 18 AWG Tipo  
SV o SJ 3 conduttori  
Il set di cavi deve avere una capacità nominale di almeno  
10 A.  
La spina di collegamento deve essere dotata di messa a  
terra, con configurazione NEMA 5-15P (15 A, 125 V) o  
NEMA 6-15P (15 A, 250 V).  
Solo Regno  
Unito  
La spina di alimentazione deve essere conforme BS1363 (3  
pin 13 amp) e dotata di un fusibile da 5 A conforme  
BS1362.  
Il cavo dell'alimentazione di rete deve essere  
contrassegnato dai marchi <HAR> o <BASEC> ed essere di  
tipo H03VVF3GO.75 (minimo).  
Solo Europa  
La spina di alimentazione deve essere conforme CEE 7/7  
(tipo "SCHUKO").  
Il cavo dell'alimentazione di rete deve essere  
contrassegnato dai marchi <HAR> o <BASEC> ed essere di  
tipo H03VVF3GO.75 (minimo).  
Danimarca  
Svizzera  
La spina di alimentazione deve essere conforme alla  
sezione 107-2-D1, standard DK2-1a o DK2  
La spina di alimentazione deve essere conforme SEV/ASE  
1011  
AVVERTENZA: L'accoppiatore (il connettore all'unità e non la spina a  
muro) deve avere una configurazione abbinabile a una presa  
EN60320/IEC320.  
AVVERTENZA: La presa deve trovarsi vicino all'unità ed essere facilmente  
accessibile.  
AVVERTENZA: Questa unità funziona alle condizioni SELV (Safety Extra  
Low Voltage) previste dalla norma IEC 60950. Tali condizioni sono  
mantenute solo se anche l'apparecchiatura a cui è collegata opera nelle  
stesse condizioni.  
AVVERTENZA: Solo per Francia e Perù. Questa unità non può ricevere  
alimentazione di tipo IT†. Se l'alimentazione è di tipo IT, l'unità deve  
essere alimentata a 230 V (2P+T) tramite un trasformatore di isolamento  
con rapporto 1:1, con il punto di collegamento secondario  
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86  
APPENDIX A: SAFETY INFORMATION  
contrassegnato come Neutro, collegato direttamente a terra.  
†Impédance à la terre.  
AVVERTENZA: Solo Regno Unito. Se si collega un modem alla porta  
Console dello 4200G, utilizzare solo un modem idoneo per il  
collegamento con il sistema di telecomunicazioni.  
AVVERTENZA: Le porte RJ-45 sono prese dati RJ-45 schermate. Non è  
pertanto possibile utilizzarle come normali prese telefoniche né per  
collegare l'unità a un PBX (Private Branch Exchange, centralino telefonico  
privato) o a una rete telefonica pubblica. Collegare a queste porte solo  
prese dati RJ-45, sistemi di telefonia o telefoni di rete. A queste prese  
dati è possibile collegare cavi dati schermati o non schermati con prese  
dati schermate o non schermate.  
AVVERTENZA: Porte a fibre ottiche—Protezione degli occhi  
PRODOTTO LASER  
CLASSE 1  
Ważne informacje o zabezpieczeniach  
OSTRZEŻENIE: Instalacja i demontaż urządzenia mogą być  
wykonywane tylko przez wykwalifikowany personel.  
OSTRZEŻENIE: Podczas instalacji Switch 4200G w stosie z urządze-  
niami SuperStack II lub SuperStack 3, które są węższe niż Switch 4200G,  
urządzenie Switch 4200G musi być zainstalowane pod węższym  
urządzeniem.  
OSTRZEŻENIE: Urządzenie musi być uziemione lub musi być  
podłączone do uziemionego źródła zasilania w celu zapewnienia zgod-  
ności z wymogami bezpieczeństwa.  
OSTRZEŻENIE: Zestaw przewodów zasilania:  
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Ważne informacje o zabezpieczeniach  
87  
Niezbędna jest zgodność z przepisami kraju, w którym jest stosowany:  
Stany  
Zjednoczone i  
Kanada  
Zestaw przewodów musi posiadać zezwolenie UL oraz  
certyfikat CSA.  
Minimalna specyfikacja przewodu giętkiego: Przewód typu  
SV lub SJ 3 o średnicy 18 wg specyfikacji AWG.  
Zestaw przewodów musi posiadać pojemność prądu  
znamionowego przynajmniej 10A.  
Wtyczka musi być uziemiająca z układem typu NEMA  
5-15P (15A, 125V) lub NEMA 6-15P (15A, 250V).  
Wielka Brytania  
Wtyczka musi być zgodna z normą BS1363 (3-pinowa 13  
amperów) i musi być wyposażona w bezpiecznik 5A zgodny  
z normą BS1362.  
Przewód sieci zasilającej musi być oznaczony <HAR> lub  
<BASEC> i musi być typu H03VVF3g0.75 (minimum).  
Europa  
Wtyczka zasilająca musi być zgodna z normą CEE 7/7  
(„SCHUKO”).  
Przewód sieci zasilającej musi być oznaczony <HAR> lub  
<BASEC> i musi być typu H03VVF3g0.75 (minimum).  
Dania  
Wtyczka zasilająca musi być zgodna z sekcją 107-2-D1  
normy DK2-1a lub DK2-5a.  
Szwajcaria  
Wtyczka zasilająca musi być zgodna z normą SEV/ASE  
1011.  
OSTRZEŻENIE: Złączka urządzenia (podłączona do przełącznika, a nie  
do wtyczki ściennej) musi być odpowiednio dopasowana do normy  
EN60320/IEC320 otworu wlotowego.  
OSTRZEŻENIE: Gniazdo zasilające musi być umieszczone w pobliżu  
urządzenia i musi być łatwo dostępne.  
OSTRZEŻENIE: Urządzenie to pracuje w warunkach SELV (Safety Extra  
Low Voltage—Bezpieczne niskie napięcie) zgodnie z normą IEC 60950.  
Takie warunki są zachowane tylko, jeśli osprzęt, do którego jest  
podłączone, również pracuje w warunkach SELV.  
OSTRZEŻENIE: Sólo para Francia y Perú:  
Esta unidad no puede recibir corriente de fuentes IT†. Si las fuentes de  
suministro de corriente son de tipo IT, esta unidad debe recibir 230V  
(2P+T) a través de un transformador aislador con relación 1:1, con el pun-  
to de conexión secundario etiquetado como neutro conectado directa-  
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88  
APPENDIX A: SAFETY INFORMATION  
mente a tierra. †Impédance ŕ la terre.  
OSTRZEŻENIE: Tylko Wielka Brytania:  
Podczas podłączania modemu do portu konsoli Switch 4200G należy  
stosować tylko modem odpowiedni do podłączenia do sieci telekomuni-  
kacyjnej.  
OSTRZEŻENIE: Porty RJ-45. Są to ekranowane gniazda danych RJ-45.  
Nie mogą być używane jako tradycyjne gniazda telekomunikacyjne lub  
stosowane do podłączenia urządzenia do publicznej sieci telefonicznej  
lub centrali PBX. Do tych gniazd należy podłączać jedynie łącza danych  
RJ-45, sieciowe systemy telefoniczne lub telefony sieciowe. Zarówno  
osłonięte, jak i nieosłonięte przewody z danymi wraz z osłoniętymi lub  
nieosłoniętymi wtykami mogą być podłączone do tych gniazd.  
OSTRZEŻENIE: Porty światłowodowe—bezpieczeństwo  
LASER PRODUKT  
KLASA 1  
Nie wolno nigdy patrzeć na włączoną diodę laser transmisyjny przez  
urządzenie wzmacniające. Nie wolno nigdy patrzeć bezpośrednio na port  
włókna TX i końcówki światłowodów, jeśli są zasilane.  
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B
PIN-OUTS  
Null Modem Cable  
RJ-45 to RS-232 25-pin  
3Com Switch  
PC/Terminal  
Cable connector: RJ-45 female  
Cable connector: 25-pin male/female  
only required if screen  
Screen  
TxD  
Shell  
1
3
2
7
4
20  
Screen  
RxD  
3
2
5
7
8
always required  
RxD  
TxD  
Ground  
Ground  
RTS  
DTR  
RTS  
CTS  
required for handshake  
DSR  
DCD  
DTR  
6
1
4
5
6
8
CTS  
DSR  
DCD  
PC-AT Serial Cable  
RJ-45 to 9-pin  
3Com Switch  
PC-AT Serial Port  
Cable connector: 9-pin female  
Cable connector: RJ-45 female  
only required if screen  
Screen  
DTR  
TxD  
RxD  
CTS  
Ground  
DSR  
RTS  
Shell  
Shell  
Screen  
DCD  
RxD  
TxD  
DTR  
Ground  
DSR  
RTS  
Required for handshake  
4
3
2
8
5
6
7
1
1
2
3
4
5
6
7
8
Always required  
required for handshake  
always required  
required for handshake  
DCD  
CTS  
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90  
APPENDIX B: PIN-OUTS  
Modem Cable  
RJ-45 to RS-232 25-pin  
3Com Switch  
Cable connector: RJ-45 female  
RS-232 Modem Port  
Cable connector: 25-pin male  
Screen  
TxD  
RxD  
RTS  
CTS  
DSR  
Ground  
DCD  
DTR  
Shell  
1
2
3
4
5
6
7
Screen  
TxD  
RxD  
RT S  
CTS  
3
2
7
8
6
5
1
4
DSR  
Ground  
DCD  
DTR  
8
20  
Ethernet Port RJ-45  
Pin Assignments  
10/100 and 1000BASE-T RJ-45 connections.  
Table 10 Pin assignments  
Pin Number  
10/100  
1000  
Ports configured as MDI  
1
2
3
4
5
6
7
8
Transmit Data +  
Transmit Data –  
Receive Data +  
Not assigned  
Not assigned  
Receive Data –  
Not assigned  
Not assigned  
Bidirectional Data A+  
Bidirectional Data A-  
Bidirectional Data B+  
Bidirectional Data C+  
Bidirectional Data C-  
Bidirectional Data B-  
Bidirectional Data D+  
Bidirectional Data D-  
Table 11 Pin assignments  
Pin Number  
10/100  
1000  
Ports configured as MDIX  
1
2
Receive Data +  
Receive Data -  
Bidirectional Data B+  
Bidirectional Data B-  
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Ethernet Port RJ-45 Pin Assignments  
91  
Pin Number  
10/100  
1000  
3
4
5
6
7
8
Transmit Data +  
Not assigned  
Not assigned  
Transmit Data –  
Not assigned  
Not assigned  
Bidirectional Data A+  
Bidirectional Data A-  
Bidirectional Data D+  
Bidirectional Data D-  
Bidirectional Data C+  
Bidirectional Data C-  
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92  
APPENDIX B: PIN-OUTS  
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C
TECHNICAL SPECIFICATIONS  
Switch 4200G 12-Port  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.)  
Weight: 4.4kg (9.72 Ibs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL 60950-1, EN 60950-1, CSA 22.2 No. 60950-1, IEC 60950-1.  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum (275 BTU/hour maximum)  
Line Frequency  
Input Voltage  
Current Rating  
50/60Hz  
100–240 VAC  
1.5A (amps) maximum  
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94  
APPENDIX C: TECHNICAL SPECIFICATIONS  
Switch 4200G 24-Port  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.)  
Weight: 4.4kg (9.72 Ibs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL 60950-1, EN 60950-1, CSA 22.2 No. 60950-1, IEC 60950-1.  
Emissions  
CISPRR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3  
EN 55024  
Immunity  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum (275 BTU/hour maximum)  
Line Frequency  
Input Voltage  
Current Rating  
50/60Hz  
100–240 VAC  
1.5A (amps) maximum  
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Switch 4200G (48-Port)  
95  
Switch 4200G (48-Port)  
Physical Dimensions  
Height: 44 mm (1.7 in.) x Width: 440 mm (17.3 in.) x Depth: 274 mm (10.8 in.)  
Weight: 4.7kg (10.9 lbs)  
Environmental Requirements  
Operating Temperature  
Storage Temperature  
Operating Humidity  
Standards  
0 ° to 40 °C (32 ° to 104 °F)  
–10 ° to +70 °C (14 ° to 158 °F)  
95% non-condensing  
EN60068 to 3Com schedule (Package testing: paras 2.1, 2.2, 2.30, and 2.32.  
Operational testing: paras 2.1, 2.2, 2.30 and 2.13).  
Safety  
Agency Certifications  
EMC  
UL 60950-1, EN 60950-1, CSA 22.2 No. 60950-1, IEC 60950-1.  
Emissions  
CISPR 22 Class A, EN55022 Class A, FCC Part 15 Subpart B Class A,  
ICES-003 Class A, EN61000-3-2, EN61000-3-3.  
Immunity  
EN 55024  
Heat Dissipation  
Power Supply  
AC  
80 watts maximum (275 BTU/hour maximum)  
Line Frequency  
Input Voltage  
Current Rating  
50/60Hz  
100–240 VAC  
2.0A (amps) maximum  
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96  
APPENDIX C: TECHNICAL SPECIFICATIONS  
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D
OBTAINING SUPPORT FOR YOUR  
PRODUCT  
Register Your  
Product  
Warranty and other service benefits start from the date of purchase, so it  
is important to register your product quickly to ensure you get full use of  
the warranty and other service benefits available to you.  
Warranty and other service benefits are enabled through product  
registration. Register your product at http://eSupport.3com.com/.  
3Com eSupport services are based on accounts that you create or have  
authorization to access. First time users must apply for a user name and  
password that provides access to a number of eSupport features  
including Product Registration, Repair Services, and Service Request. If  
you have trouble registering your product, please contact 3Com Global  
Services for assistance.  
Purchase  
Value-Added  
Services  
To enhance response times or extend warranty benefits, contact 3Com or  
your authorized 3Com reseller. Value-added services like 3Com ExpressSM  
and GuardianSM can include 24x7 telephone technical support, software  
upgrades, onsite assistance or advance hardware replacement.  
Experienced engineers are available to manage your installation with  
minimal disruption to your network. Expert assessment and  
implementation services are offered to fill resource gaps and ensure the  
success of your networking projects. More information on 3Com  
maintenance and Professional Services is available at  
http://www.3com.com/  
Contact your authorized 3Com reseller or 3Com for a complete list of the  
value-added services available in your area.  
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98  
APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT  
Troubleshoot  
Online  
You will find support tools posted on the 3Com web site at  
http://www.3com.com/  
3Com Knowledgebase helps you troubleshoot 3Com products. This  
query-based interactive tool is located at  
http://knowledgebase.3com.com and contains thousands of technical  
solutions written by 3Com support engineers.  
Access Software  
Downloads  
Software Updates are the bug fix / maintenance releases for the version  
of software initially purchased with the product. In order to access these  
Software Updates you must first register your product on the 3Com web  
site at http://eSupport.3com.com/  
First time users will need to apply for a user name and password. A link to  
software downloads can be found at http://eSupport.3com.com/, or  
under the Product Support heading at http://www.3com.com/  
Software Upgrades are the software releases that follow the software  
version included with your original product. In order to access upgrades  
and related documentation you must first purchase a service contract  
from 3Com or your reseller.  
Telephone Technical To enable telephone support and other service benefits, you must first  
Support and Repair  
register your product at http://eSupport.3com.com/  
Warranty and other service benefits start from the date of purchase, so it  
is important to register your product quickly to ensure you get full use of  
the warranty and other service benefits available to you.  
When you contact 3Com for assistance, please have the following  
information ready:  
Product model name, part number, and serial number  
Proof of purchase, if you have not pre-registered your product  
A list of system hardware and software, including revision level  
Diagnostic error messages  
Details about recent configuration changes, if applicable  
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Contact Us  
99  
To send a product directly to 3Com for repair, you must first obtain a  
return authorization number (RMA). Products sent to 3Com, without  
authorization numbers clearly marked on the outside of the package, will  
be returned to the sender unopened, at the senders expense. If your  
product is registered and under warranty, you can obtain an RMA  
number online at http://eSupport.3com.com/. First time users will  
need to apply for a user name and password.  
Contact Us  
3Com offers telephone, e-mail and internet access to technical support  
and repair services. To access these services for your region, use the  
appropriate telephone number, URL or e-mail address from the list below.  
Telephone numbers are correct at the time of publication. Find a current  
directory of contact information posted on the 3Com web site at  
http://csoweb4.3com.com/contactus/  
Country  
Telephone Number  
Country  
Telephone Number  
Asia, Pacific Rim Telephone Technical Support and Repair  
Australia  
Hong Kong  
India  
1 800 678 515  
800 933 486  
+61 2 9424 5179 or  
000800 650 1111  
001 803 61009  
00531 616 439 or  
03 3507 5984  
Philippines  
1235 61 266 2602 or  
1800 1 888 9469  
800 810 3033  
800 6161 463  
080 333 3308  
00801 611 261  
001 800 611 2000  
P.R. of China  
Singapore  
S. Korea  
Taiwan  
Thailand  
Indonesia  
Japan  
Malaysia  
New Zealand  
Pakistan  
1800 801 777  
0800 446 398  
+61 2 9937 5083  
You can also obtain support in this region using the following e-mail: [email protected]  
Or request a repair authorization number (RMA) by fax using this number:  
+ 65 543 6348  
Europe, Middle East, and Africa Telephone Technical Support and Repair  
From anywhere in these  
regions, call:  
+44 (0)1442 435529  
From the following countries, you may use the numbers shown:  
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100  
APPENDIX D: OBTAINING SUPPORT FOR YOUR PRODUCT  
Country  
Telephone Number  
Country  
Telephone Number  
Austria  
Belgium  
01 7956 7124  
070 700 770  
7010 7289  
01080 2783  
0825 809 622  
01805 404 747  
06800 12813  
1407 3387  
1800 945 3794  
199 161346  
Luxembourg  
Netherlands  
Norway  
342 0808128  
0900 777 7737  
815 33 047  
00800 441 1357  
707 200 123  
0800 995 014  
9 021 60455  
07711 14453  
08488 50112  
0870 909 3266  
Denmark  
Finland  
France  
Germany  
Hungary  
Ireland  
Israel  
Poland  
Portugal  
South Africa  
Spain  
Sweden  
Switzerland  
U.K.  
Italy  
You can also obtain support in this region using the following URL:  
http://emea.3com.com/support/email.html  
Latin America Telephone Technical Support and Repair  
Antigua  
Argentina  
Aruba  
Bahamas  
Barbados  
Belize  
Bermuda  
Bonaire  
Brazil  
Cayman  
Chile  
Colombia  
Costa Rica  
Curacao  
Ecuador  
Dominican Republic  
1 800 988 2112  
0 810 444 3COM  
1 800 998 2112  
1 800 998 2112  
1 800 998 2112  
52 5 201 0010  
1 800 998 2112  
1 800 998 2112  
0800 13 3COM  
Guatemala  
Haiti  
Honduras  
Jamaica  
Martinique  
Mexico  
Nicaragua  
Panama  
Paraguay  
Peru  
Puerto Rico  
Salvador  
Trinidad and Tobago  
Uruguay  
Venezuela  
Virgin Islands  
AT&T +800 998 2112  
57 1 657 0888  
AT&T +800 998 2112  
1 800 998 2112  
571 657 0888  
01 800 849CARE  
AT&T +800 998 2112  
AT&T +800 998 2112  
54 11 4894 1888  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
57 1 657 0888  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
1 800 998 2112  
AT&T +800 998 2112  
AT&T +800 998 2112  
You can also obtain support in this region using the following:  
Spanish speakers, enter the URL:  
http://lat.3com.com/lat/support/form.html  
Portuguese speakers, enter the URL:  
http://lat.3com.com/br/support/form.html  
English speakers in Latin America should send e-mail to:  
US and Canada Telephone Technical Support and Repair  
1 800 876 3266  
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INDEX 101  
F
INDEX  
factory defaults 20  
H
3C number 24  
installing the Switch 21  
IP addressing  
registered 57  
IP configuration 35  
A
access levels of default users 50  
3Com Network Director 44  
console port 45  
L
LEDs 18  
B
browsers  
C
preparing for 37  
setting up 31, 34  
manual setup  
console port 38  
MDI configuration 28  
cable  
10/100/1000 28  
CD-ROM 11  
command line interface  
management 32  
console port 17  
conventions  
cross-over configuration 28  
RJ45 90  
pin-outs 89  
D
default  
users 50  
documentation  
related 11  
ports 16  
power socket 19  
powering-up a Switch 5500 25  
problem solving 53, 59  
communication problems 57  
hardware problems 55  
IP addressing 55  
LEDs 54  
E
Ethernet address of the Switch 24  
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102  
R
upgrading software  
bootrom 66  
bootrom using FTP 71  
bootrom using TFTP 71  
bootrom using XModem 72  
TFTP 61, 68  
S
safety information  
English 76  
Italian 84  
serial number of the Switch 24  
SFP  
W
Web browsers  
SNMP 50  
SNMP management 33  
choosing 48  
choosing a browser 48  
web interface management 33  
setting up 48  
socket  
SSH 47  
XModem 65  
Switch  
Switch 5500  
powering-up 25  
rack mounting 23  
serial number 24  
size 93  
unit information label 24  
weight 93  
system specifications 93  
T
troubleshooting 53, 59  
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REGULATORY NOTICES  
FCC STATEMENT  
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to  
part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful  
interference when the equipment is operated in a commercial environment. This equipment generates, uses  
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,  
may cause harmful interference to radio communications. Operation of this equipment in a residential area is  
likely to cause harmful interference to radio communications, in which case the user will be required to  
correct the interference at their own expense.  
INFORMATION TO THE USER  
If this equipment does cause interference to radio or television reception, which can be determined by  
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of  
the following measures:  
Reorient the receiving antenna.  
Relocate the equipment with respect to the receiver.  
Move the equipment away from the receiver.  
Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits.  
If necessary, the user should consult the dealer or an experienced radio/television technician for additional  
suggestions. The user may find the following booklet prepared by the Federal Communications Commission  
helpful:  
How to Identify and Resolve Radio-TV Interference Problems  
This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No.  
004-000-00345-4.  
In order to meet FCC emissions limits, this equipment must be used only with cables which comply with IEEE  
802.3.  
ICES STATEMENT  
This Class A digital apparatus complies with Canadian ICES-003.  
Cet appareil numérique de la Classe A est conforme à la norme NMB-003 du Canada.  
CE STATEMENT (EUROPE)  
This product complies with the European Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC as  
amended by European Directive 93/68/EEC.  
Warning: This is a class A product. In a domestic environment this product may cause radio interference in  
which case the user may be required to take adequate measures.  
A copy of the signed Declaration of Conformity can be downloaded from the Product Support web page for  
the Switch 4200G Family (3CR17660-91, 3CR17661-91, 3CR17662-91) at http://www.3com.com.  
Also available at http://support.3com.com/doc/SWITCH_4200G_EU_DOC.pdf  
VCCI STATEMENT  
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