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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
350 Campus Drive
Copyright © 2006, 3Com Corporation. All rights reserved. No part of this documentation may be reproduced in any form or by any means or used to make any derivative work (such as translation, transformation, or adaptation) without written permission from 3Com Corporation.
3Com Corporation reserves the right to revise this documentation and to make changes in content from time to time without obligation on the part of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty, term, or condition of any kind, either implied or expressed, including, but not limited to, the implied warranties, terms or conditions of merchantability, satisfactory quality, and fitness for a particular purpose. 3Com may make improvements or changes in the product(s) and/or the program(s) described in this documentation at any time.
If there is any software on removable media described in this documentation, it is furnished under a license agreement included with the product as a separate document, in the hard copy documentation, or on the removable media in a directory file named LICENSE. TXT or! LICENSE. TXT. If you are unable to locate a copy, please contact 3Com and a copy will be provided to you.
UNITED STATES GOVERNMENT LEGEND
If you are a United States government agency, then this documentation and the software described herein are provided to you subject to the following:
All technical data and computer software are commercial in nature and developed solely at private expense. Software is delivered as “Commercial Computer Software” as defined in DFARS 252. 227-7014 (June 1995) or as a “commercial item” as defined in FAR 2. 101(a) and as such is provided with only such rights as are provided in 3Com’s standard commercial license for the Software. Technical data is provided with limited rights only as provided in DFAR 252. 227-7015 (Nov 1995) or FAR 52. 227-14 (June 1987), whichever is applicable. You agree not to remove or deface any portion of any legend provided on any licensed program or documentation contained in, or delivered to you in conjunction with, this User Guide.
Unless otherwise indicated, 3Com registered trademarks are registered in the United States and may or may not be registered in other countries.
3Com and the 3Com logo are registered trademarks of 3Com Corporation.
ntel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows NT are registered trademarks of Microsoft Corporation. Novell and NetWare are registered trademarks of Novell, Inc. UNIX is a registered trademark in the United States and other countries, licensed exclusively through X/Open Company, Ltd.
IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Inc.
All other company and product names may be trademarks of the respective companies with which they are associated.
It is the policy of 3Com Corporation to be environmentally friendly in all operations. To uphold our policy, we are committed to:
Establishing environmental performance standards that comply with national legislation and regulations.
Conserving energy, materials and natural resources in all operations.
Reducing the waste generated by all operations. Ensuring that all waste conforms to recognized environmental standards. Maximizing the recyclable and reusable content of all products.
Ensuring that all products can be recycled, reused and disposed of safely.
Ensuring that all products are labelled according to recognized environmental standards.
Improving our environmental record on a continual basis.
End of Life Statement
3Com processes allow for the recovery, reclamation and safe disposal of all end-of-life electronic components.
Regulated Materials Statement
3Com products do not contain any hazardous or ozone-depleting material.
Environmental Statement about the Documentation
The documentation for this product is printed on paper that comes from sustainable, managed forests; it is fully biodegradable and recyclable, and is completely chlorine-free. The varnish is environmentally friendly, and the inks are vegetable-based with a low heavy-metal content.
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. 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. com.
DOWNLOAD THE LATEST SOFTWARE AND DOCUMENTATION
ABOUT THIS GUIDE
Before You Start
About Your CD-ROM
Accessing Online Documentation
1 INTRODUCING THE SWITCH 4200G FAMILY
About the Switch 4200G
Summary of Hardware Features
Switch 4200G—Front View Detail
10/100/1000BASE-T Ports 16
1000BASE-X SFP Ports
Unit Status Display
Switch 4200G — Rear View Detail
10 Gbps Interface Slots
2 INSTALLING THE SWITCH
Choosing a Suitable Site
Placing Units On Top of Each Other
The Power-up Sequence
Powering-up the Switch 4200G
Checking for Correct Operation of LEDs
Approved SFP Transceivers
Inserting an SFP Transceiver
Removing an SFP Transceiver
Choosing the Correct Cables
Choosing the Correct Cables for the Switch 4200G
3 SETTING UP FOR MANAGEMENT
Methods of Managing a Switch
Command Line Interface Management
Command Line Interface Management using SSH
Web Interface Management
SNMP Management 33
Setting Up Overview
Preparing for Management
Manually Configuring IP Information
Connecting to the Console Port
Connecting to a Front Panel Port
Viewing Automatically Configured IP Information
Using 3Com Network Director
Setting Up Command Line Interface Management
User Interface Overview
CLI Management using the Console Port
CLI Management over the Network
Setting Up Command Line Interface Management using SSH 47
Setting Up Web Interface Management
Web Management Over the Network
Setting Up SNMP Management V1 or V2
Default Users and Passwords
Configuration Conversion Utility
Solving Problems Indicated by LEDs
Solving Hardware Problems
Solving Communication Problems
Upgrading from the Command Line Interface 60
Check Flash Space Available 60
Backup Switch Software
Upgrade Using TFTP
Upgrade Using FTP (via network port) 63
XModem (using the console cable)
Upgrading from the Bootrom Interface
Upgrading the Bootrom 70
Bootrom Upgrade using TFTP
Bootrom Upgrade using FTP
Bootrom Upgrade using XModem
Power Cord Set—Japan
Important Safety Information
L’information de Sécurité Importante
Wichtige Sicherheitsinformationen 81
Información de Seguridad Importante
Importanti Informazioni di Sicurezza
Ważne informacje o zabezpieczeniach
Null Modem Cable
PC-AT Serial Cable
Modem Cable 90
Ethernet Port RJ-45 Pin Assignments
Switch 4200G 12-Port
Switch 4200G 24-Port
Switch 4200G (48-Port)
OBTAINING SUPPORT FOR YOUR PRODUCT
Register Your Product
Purchase Value-Added Services
Access Software Downloads
Telephone Technical Support and Repair 98
Contact Us 99
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/
10 ABOUT THIS GUIDE
Table 1 and Table 2 list conventions that are used throughout this guide.
Information note Information that describes important features or
Information that alerts you to potential loss of data or
potential damage to an application, system, or device
Information that alerts you to potential personal injury
This typeface represents information as it appears on the
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>.
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”
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:
Words in italics
Italics are used to:
Emphasize a point.
■ Denote a new term at the place where it is defined in the
■ Identify menu names, menu commands, and software button names. Examples:
From the Help menu, select Contents.
In addition to this guide, Switch 4200G documentation set includes the
■ 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
■ 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
■ 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,
do the following:
1Insert the CD-ROM into your CD-ROM drive. If your PC has auto-run enabled, a splash screen will be displayed automatically.
2Select 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 Docs directory on the CD-ROM.
■The PDF Configuration Guide is stored in the Docs directory of the CD-ROM.
12 ABOUT THIS GUIDE
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)
Part Number 10014914AA
Switch 4200G Family Getting Started Guide
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
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
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.
■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
Up to 8, 000 supported
Supported on all ports
Store and Forward
Half and full duplex on all front panel ports
Supported on all ports. If fiber SFP transceivers are used,
Auto MDIX is not supported.
In full duplex operation all ports are supported
Supported (using the IEEE Std 802. ID, 1998 Edition):
Eight traffic queues per port
Auto-negotiating 10/100/1000BASE-T ports
Ethernet, and Gigabit
SFP Ethernet Ports
Supports fiber Gigabit Ethernet long-wave (LX),
long-haul (LH70) and copper (T) transceivers in any
Switch 4200G—Front View Detail 15
Table 3 Hardware Features (continued)
19-inch rack or standalone mounting
Up to 16 units can be linked together (15 members and
Switch 4200G—Front View
Figure 1 Switch 4200G 12-Port—front view
Port Status LEDs
SFP Status Console
Gigabit SFP Ports
Figure 2 Switch 4200G 24-Port—front view
Speed: (100Base-TX) Green = 100Mbps Yellow = 10Mbps
Duplex: Green = Full Duplex, Yellow = Half Duplex
Power: Green = Delivering Power, Yellow = Fault, Flashing Green = Over Budget
16 CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILY
Figure 3 Switch 4200G 48-Port—front view
Port Status LEDs
Speed:Green = 100Mbps, Yellow = 10Mbps
Duplex:Green = Full Duplex, Yellow = Half Duplex
Power:Green = Deliverng Power. Yellow=Fault, Flashing Green=Over Budget
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.
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
Mode LED Color
Mode LED flashing green
POST (power-on startup tests) running.
Mode LED flashing red
POST failure. Digit indicates ID of failed test.
POST test OK
Switch chip error
Packet memory error
18 CHAPTER 1: INTRODUCING THE SWITCH 4200G FAMILY
Table 4 Status Display (continued)
Rotating bar segment
Software download in progress.
Mode LED steady red
Fan failure detected.
Switch is too hot; temperature is critical.
Mode LED green or yellow
Switch is clustered Commander unit.
Switch is clustered Candidate unit.
Switch is clustered Slave unit.
Switch is un-clustered.
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
The Switch is powered-up and operating normally.
Self Test (POST) or Software Download is in progress.
One or more ports have failed POST.
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.
10/100 Port Speed and Activity, Gigabit SFP Status and
Activity, or Stack Status and Activity.
10/100 Duplex and Activity, Gigabit SFP Duplex and
Activity, or Stack Activity.
10/100/1000BASE-T Port LEDs
A high speed (1000 Mbps) link is present, blinking off for
every packet received or transmitted.
A low speed link is present, blinking off for every packet
received or transmitted.
The port has failed POST.
No link is present.
Switch 4200G — Rear View Detail 19
Table 5 LED Behavior (continued)
Full duplex, blinking off for every packet received or
Half duplex, blinking off for every packet received or
1000BASE-X Port SFP Port LEDs
A high speed (1000 Mbps) link is present.
Port failed POST.
Full duplex packets are being transmitted/received on the
Half duplex packets are being transmitted/received on the
Switch 4200G — Figure 4 Switch 4200G—rear view
Rear View Detail
AC Power Input
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.
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
Automatic IP Configuration
Broadcast Storm Control
Virtual LANs (VLANs)
All ports belong to the untagged Default VLAN
(VLAN 1) with IEEE Std 802. 1Q-1998 learning
Fixed as VLAN 1 on 4200G units. Can be any
VLAN for 4200G units.
Link Aggregation Control
Disabled per port
IP Multicast Filtering
Rapid Spanning Tree Protocol
Enabled on front panel ports
All ports prioritize NBX VoIP traffic (LAN and IP).
All ports set to “best effort” for all other traffic.
Configuration Save and
This chapter contains the information you need to install and set up the
Switch 4200G. It covers the following topics:
■Choosing a Suitable Site
■Placing Units On Top of Each Other
■The Power-up Sequence
■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.
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.
■ CD-ROM (includes documentation related to your Switch)
■ Getting Started Guide (this guide)
Unit Information Labels
■ Console Cable (RJ-45)
■ 2 x Mounting brackets
4 x Screws
■ 4 x Rubber feet
Choosing a Suitable
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.
■ 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.
The Switch 4200G is 1 rack unit (1U) high and will fit in most standard
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.
24 CHAPTER 2: INSTALLING THE SWITCH
Figure 5 Fitting a Bracket for Rack-Mounting
3Insert 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.
4Repeat step 2 and step 3 for the other side of the Switch.
5Insert the Switch into the 19-inch rack and secure with suitable screws (not provided). Ensure that ventilation holes are not obstructed.
6Connect network cabling.
7Finally 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.
Placing Units On Top of Each Other 25
Placing Units On If the Switch units are free-standing, up to four units can be placed one Top of Each Other 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 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.
1Plug the power cord into the power socket at the rear of the Switch.
2Plug 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
The Switch has failed its Power On Self Test (POST).
Some ports have failed POST*
The Switch is not receiving power.
*In this event you can still use the Switch using the remaining ports that have passed the POST.
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.
The following section describes how to insert an SFP transceiver into an
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:
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.
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:
1The 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.
2Hold 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).
3Gently 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.
4Remove the plastic protective cover if fitted.
Figure 6 Inserting an SFP Transceiver
Suitable port on host Switch
5Use and appropriate cable to connect the transceiver to a suitable device.
6Check the LEDs on the front of the Switch to ensure that it is operating correctly. Refer to “LEDs” on page 18 for more information.
28 CHAPTER 2: INSTALLING THE SWITCH
Removing an SFP
If you wish to remove the transceiver (it is not necessary to power-down
1Disconnect the cable from the transceiver.
2Move the wire release lever downwards until it is pointing toward you.
3Pull the wire release lever toward you to release the catch mechanism; the transceiver will then easily slide out.
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
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
Table 8 Cables required to connect the Switch to other devices if auto-negotiation is disabled
Switch to Switch (MDIX to MDIX)
Switch to Hub (MDIX to MDIX)
Switch to PC (NIC) (MDIX to MDI)
Choosing the Correct Cables
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.
30 CHAPTER 2: INSTALLING THE SWITCH
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
Switch and therefore the overall performance of your network.
This chapter explains the initial set up of the Switch and the different methods of accessing the management software to manage a Switch. It covers the following topics:
■Methods of Managing a Switch
■Setting Up Overview
■Manually Configuring IP Information
■Viewing Automatically Configured IP Information
■Setting Up Command Line Interface Management
■Setting Up Command Line Interface Management using SSH
■Setting Up Web Interface Management
■Setting Up SNMP Management V1 or V2
■Default Users and Passwords
■Configuration Conversion Utility
32 CHAPTER 3: SETTING UP FOR MANAGEMENT
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
Each Switch has a command line interface (CLI) that allows you to manage the Switch from a workstation, either locally using a console port connection (see Figure 7), or remotely over the network (see Figure 8).
Figure 7 CLI Management using the Console Port
(with terminal emulation Switch software installed)
Figure 8 CLI Management over the Network
Connect over Network via Telnet
Refer to “Setting Up Command Line Interface Management” on page 46.
3Com Switch 4200G 24-Port 3CR17661-91 (HP 4200G Switch Series)
Kroki, aby ręcznie zaktualizować sterowniki Switch 4200G 24-Port 3CR17661-91:
Podstawowe sterowniki Switch 4200G 24-Port 3CR17661-91 powinny być dołączone do systemu%%os%% lub do pobrania za pośrednictwem aktualizacji systemu Windows®. Korzystanie z tych wbudowanych sterowników Ethernet Switch będzie obsługiwać podstawowe funkcje.Oto pełny przewodnik na temat ręcznego aktualizowania tych sterowników urządzeń 3Com.
|Producent: ||3Com || |
|Kategoria: ||Przełącznik ethernetowy |
|Styl: ||Switch 4200G 24-Port |
|Seria: ||HP 4200G Switch Series |
|Numer modelu: ||3CR17661-91 |
|Systemy operacyjne: ||Windows XP, Vista, 7, 8, 10, 11 |
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Sugestia: Początkującym użytkownikom Windows zaleca się skorzystanie z narzędzia do aktualizacji sterowników, jak na przykład DriverDoc [DriverDoc - Produkt Solvusoft], w celu aktualizacji sterowników urządzeń 3Com Przełącznik ethernetowy. To narzędzie Windows pobiera, instaluje i aktualizuje sterowniki Switch 4200G 24-Port 3CR17661-91 automatycznie, chroniąc Cię przed instalacją niewłaściwych sterowników dla Twojego systemu operacyjnego.
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Częste pytania dotyczące aktualizacji 3CR17661-91
Jaki jest powód aktualizacji sterowników Switch 4200G 24-Port 3CR17661-91?
Zalety aktualizacji sterowników Switch 4200G 24-Port 3CR17661-91 obejmują lepszą kompatybilność sprzętową, możliwość maksymalnego wykorzystania funkcji urządzeń i zwiększoną wydajność. Zagrożenia związane z instalacją nieprawidłowych sterowników typu Przełącznik ethernetowy obejmują awarie oprogramowania, spadek wydajności i ogólną niestabilność działania komputera.
Które systemy operacyjne współpracują ze sterownikami Switch 4200G 24-Port 3CR17661-91?
Switch 4200G 24-Port 3CR17661-91 posiada obecnie sterowniki urządzeń dla Windows. org/Question">
Kiedy należy zaktualizować sterowniki Switch 4200G 24-Port 3CR17661-91?
Aby uzyskać optymalną wydajność sprzętową Switch 4200G 24-Port 3CR17661-91, należy aktualizować sterowniki urządzeń raz na kilka miesięcy. org/Question">
Czy możesz wyjaśnić, co robią sterowniki Przełącznik ethernetowy 3Com?
Sterowniki urządzeń, w tym również te stworzone specjalnie przez 3Com dla Switch 4200G 24-Port 3CR17661-91, umożliwiają bezpośrednią komunikację między urządzeniami Ethernet Switch i systemem operacyjnym.
Typowe problemy dotyczące aktualizacji sterowników
Możliwe jest kojarzenie błędów Switch 4200G 24-Port 3CR17661-91 z uszkodzonymi sterownikami komputera. Sterowniki urządzeń zawodzą sporadycznie i niewytłumaczalnie bez wyraźnego powodu. Nie musisz się martwić, ponieważ problem z Przełącznik ethernetowy z pewnością będzie można naprawić za pomocą zaktualizowanego sterownika.
Znalezienie dokładnych sterowników zgodnych z Twoim urządzeniem Switch 4200G 24-Port 3CR17661-91 może być trudne. Lokalizowanie, pobieranie i ręczna aktualizacja sterownika Windows Switch 4200G 24-Port 3CR17661-91 zajmuje dużo czasu, dzięki czemu proces ten jest nie do zniesienia dla większości użytkowników. Nieprawidłowe sterowniki sprzętu mogą prowadzić do poważniejszych problemów niż tylko wadliwej instalacji.
Innym istotnym problemem jest użycie programu aktualizacji sterownika, który jest zbyt pracochłonny, aby to zrobić. Dobre oprogramowanie do aktualizacji sterowników zapewni Ci najnowszy i najlepszy sterownik, dzięki czemu nigdy nie będziesz miał problemu z urządzeniem. Tworzenie kopii zapasowej sterowników zapewnia bezpieczeństwo wiedzy, że można przywrócić dowolny sterownik do poprzedniej wersji, jeśli coś pójdzie nie tak.
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Bezpośredni link do pobrania Podręcznik linii 3com 3cr17661 91
Ostatnia aktualizacja Podręcznik linii 3com 3cr17661 91