3com 3CR17501-91 - SuperStack 3 Switch 3250 User manual

Category
Network switches
Type
User manual
http://www.3com.com/
Part No. DUA1750-0AAA01
Published December 2003
SuperStack
®
3
Switch 3226 and Switch 3250
Getting Started Guide
3CR17500-91
3CR17501-91
DUA1750-0AAA01.book Page 1 Friday, December 5, 2003 10:24 AM
3Com Corporation
350 Campus Drive
Marlborough, MA
USA 01752-3064
Copyright © 2003, 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
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If there is any software on removable media described in this documentation, it is furnished under a license
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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, SuperStack, and the 3Com logo are registered trademarks of 3Com Corporation.
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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.
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The documentation for this product is printed on paper that comes from sustainable, managed forests; it is
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ENCRYPTION
This product contains encryption and may require U.S. and/or local government authorization prior to export
or import to another country.
DUA1750-0AAA01.book Page 2 Friday, December 5, 2003 10:24 AM
CONTENTS
ABOUT THIS GUIDE
Before You Start 7
About Your CD-ROM 7
Conventions 8
Related Documentation 9
Accessing Online Documentation 9
Documentation Comments 10
1 INTRODUCING THE SUPERSTACK 3 SWITCH 3226 AND
S
WITCH 3250
About the Switch 12
Summary of Hardware Features 12
Switch — Front View Detail 13
10BASE-T/ 100BASE-TX Ports 13
10BASE-T/ 100BASE-TX/
1000BASE-T Ports 14
SFP Ports 14
LEDs 14
Console Port
(Switch 3226) 15
Switch — Rear View Detail 16
Power Socket 16
Redundant Power System Socket 16
Console Port
(Switch 3250) 16
Default Settings 17
2 INSTALLING THE SWITCH
Package Contents 20
Choosing a Suitable Site 20
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Rack-mounting 21
Placing Units On Top of Each Other 23
The Power-up Sequence 23
Powering-up the Switch 23
Checking for Correct Operation of LEDs 23
Connecting a Redundant Power System 24
Choosing the Correct Cables 24
SFP Operation 25
Approved SFP Transceivers 25
Inserting an SFP Transceiver 25
Removing an SFP Transceiver 27
3 SETTING UP FOR MANAGEMENT
Setting Up Overview 30
IP Configuration 31
Preparing for Management 32
Manually Configuring IP Information 33
Connecting to the Console Port 33
Viewing Automatically Configured IP Information 36
Using 3Com Network Supervisor 36
Connecting to the Console Port 36
Methods of Managing a Switch 39
Command Line Interface Management 39
Web Interface Management 39
SNMP Management 40
Setting Up Command Line Interface Management 40
CLI Management via the Console Port 40
CLI Management over the Network 41
Setting Up Web Interface Management 42
Pre-requisites 42
Web Management Over the Network 42
Setting Up SNMP Management 43
Pre-requisites 43
Default Users and Passwords 43
Changing Default Passwords 44
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4 PROBLEM SOLVING
Solving Problems Indicated by LEDs 46
Solving Hardware Problems 47
Solving Communication Problems 48
Solving Software Upgrade Problems 49
A SAFETY INFORMATION
Power Cord Set — Japan 51
Important Safety Information 52
L’information de Sécurité Importante 54
Wichtige Sicherheitsinformationen 56
B PIN-OUTS
Null Modem Cable 59
PC-AT Serial Cable 59
RJ-45 Pin Assignments 60
C TECHNICAL SPECIFICATIONS
SuperStack 3 Switch 3226 and Switch 3250 61
D OBTAINING SUPPORT FOR YOUR PRODUCT
Register Your Product to Gain Service Benefits 63
Purchase Value-Added Services 63
Troubleshoot Online 63
Access Software Downloads 64
Contact Us 64
Telephone Technical Support and Repair 64
INDEX
REGULATORY NOTICES
DUA1750-0AAA01.book Page 5 Friday, December 5, 2003 10:24 AM
DUA1750-0AAA01.book Page 6 Friday, December 5, 2003 10:24 AM
ABOUT THIS GUIDE
This guide provides all the information you need to install and use the
following switches in their default state.
SuperStack
®
3 Switch 3226 (3CR17500-91)
SuperStack
®
3 Switch 3250 (3CR17501-91)
All procedures described in this guide apply to both models except where
stated. Where a procedure or description applies to both the Switch 3226
and the Switch 3250, the term Switch is used.
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 CD-ROM that accompanies
your Switch.
About Your CD-ROM The CD-ROM also contains the following:
Online documentation for the Switch — refer to Related
Documentation on page 9 for details.
3Com Network Supervisor — a powerful and easy-to-use network
management platform.
A number of other useful applications.
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/
DUA1750-0AAA01.book Page 7 Friday, December 5, 2003 10:24 AM
8 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 port information, enter the following command:
bridge port detail
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.
DUA1750-0AAA01.book Page 8 Friday, December 5, 2003 10:24 AM
Related Documentation 9
Related
Documentation
In addition to this guide, each Switch documentation set includes the
following:
SuperStack 3 Switch Implementation 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.
SuperStack 3 Switch Management Quick Reference Guide
This guide contains:
a list of the features supported by the Switch.
a summary of the Web interface and command line interface
commands for the Switch.
SuperStack 3 Switch Management Interface 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 HTML 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.
There are other publications you may find useful, such as:
Documentation accompanying 3Com Network Supervisor. This is
supplied on the CD-ROM that accompanies the Switch.
Accessing Online
Documentation
To access the documentation on the CD-ROM supplied with your Switch,
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 via the root directory and
copy the files from the CD-ROM to a suitable directory.
DUA1750-0AAA01.book Page 9 Friday, December 5, 2003 10:24 AM
10 ABOUT THIS GUIDE
The HTML Reference Guide is stored in the Docs/reference
directory on the CD-ROM. The documentation is accessed using the
contents.htm file.
The PDF Implementation Guide is stored in the
Docs/implementation directory of the CD-ROM.
3Com recommends that you copy the Docs/reference directory as a
whole to maintain the structure of the files.
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:
Superstack
®
3 Switch 3226 and Switch 3250 Getting Started Guide
Part Number DUA1750-0AAA01
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.
DUA1750-0AAA01.book Page 10 Friday, December 5, 2003 10:24 AM
1
INTRODUCING THE SUPERSTACK 3
SWITCH 3226 AND SWITCH 3250
This chapter contains introductory information about the Switch 3226
and Switch 3250 and how they can be used in your network. It covers
summaries of hardware and software features and also the following
topics:
About the Switch
Switch — Front View Detail
Switch — Rear View Detail
Default Settings
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12 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3226 AND SWITCH 3250
About the Switch The Switch is a 10/100 Mbps Ethernet Switch, which consists of either:
24 10BASE-T/100BASE-TX ports or
48 10BASE-T/100BASE-TX ports
and:
Two 10BASE-T/100BASE-TX/1000BASE-T (10/100/1000) ports
Two SFP ports
The two 10/100/1000 ports are combination ports. When an SFP module
is inserted it has priority over the 10/100/1000 port of the same number
(25-26 on the Switch 3226, 49-50 on the Switch 3250). The
corresponding 10/100/1000 port is disabled when an SFP module is
present.
Summary of
Hardware Features
Table 3 summarizes the hardware features that are supported by the
Switch.
Table 3 Hardware features
Feature Switch
MAC Addresses Up to 8000 supported
Up to 200 static entries
Auto-negotiation Supported on all ports
Auto MDI/MDI-X Supported on all ports
Forwarding Modes Store and Forward
Duplex Modes Half and full duplex on all ports
Traffic Prioritization Supported (using the IEEE Std 802.ID, 1998 Edition):
4 queues per port
Ethernet/Fast Ethernet
Ports
Auto-negotiating 10BASE-T / 100BASE-TX ports
Ethernet/Fast Ethernet/
Gigabit Ethernet Ports
Auto-negotiating 10BASE-T / 100BASE-TX /
1000BASE-T ports
RPS Support Connects to SuperStack 3 Advanced Redundant
Power System (ARPS) (3C16071B) with Type 3
Module (3C16075)
SFP Ports 2 auto-negotiating SFP ports
Mounting 19-inch rack or stand-alone mounting
DUA1750-0AAA01.book Page 12 Friday, December 5, 2003 10:24 AM
Switch — Front View Detail 13
Switch — Front
View Detail
Figure 1 Switch 3226 — front view
Figure 2 Switch 3250 — front view
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.
10BASE-T/
100BASE-TX Ports
The Switch has 24 or 48 auto-negotiating 10BASE-T/100BASE-TX ports
configured as Auto MDI/MDI-X. These ports automatically provide the
appropriate connection. The default state for 10/100 Mbps ports is
auto-negotiation enabled, where the speed, duplex and flow control
modes are negotiated.
Alternatively, you can manually set these ports to 10BASE-T half duplex,
10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full duplex
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14 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3226 AND SWITCH 3250
and manually enable or disable flow control. The maximum segment
length is 100 m (328 ft) over Category 5 twisted pair cable.
If you disable auto-negotiation, Auto MDI/MDI-X will also be disabled.
10BASE-T/
100BASE-TX/
1000BASE-T Ports
The Switch has two auto-negotiating 10BASE-T/100BASE-TX/100BASE-T
ports configured as Auto MDI/MDI-X. These ports automatically provide
the appropriate connection. The default state for 10/100/1000 Mbps
ports is auto-negotiation enabled, where the speed, duplex and flow
control modes are negotiated.
Alternatively, you can manually set these ports to 10BASE-T half duplex,
10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full duplex
or 1000BASE-T full duplex and manually enable or disable flow control.
The maximum segment length is 100 m (328 ft) over Category 5 twisted
pair cable.
If you disable auto-negotiation, Auto MDI/MDI-X will also be disabled.
When an SFP module is inserted it has priority over the 10/100/1000 port
of the same number (25-26 on the Switch 3226, 49-50 on the
Switch 3250). The corresponding 10/100/1000 port is disabled when an
SFP module is present.
SFP Ports The two SFP (Small Form Factor Pluggable) ports support fiber Gigabit
Ethernet short-wave (SX) and long-wave (LX) SFP Transceivers in any
combination. This offers you the flexibility of using SFP transceivers to
provide connectivity between the Switch and a 1000 Mbps core network
or to create a high capacity aggregated link between two workgroups.
The only state for these ports is auto-negotiation enabled. As the speed
and duplex modes are fixed by the media type, only the flow control is
negotiated with the link partner.
When an SFP module is inserted it has priority over the 10/100/1000 port
of the same number (25-26 on the Switch 3226, 49-50 on the
Switch 3250). The corresponding 10/100/1000 port is disabled when an
SFP module is present.
LEDs Table 4 lists LEDs visible on the front of the Switch, and how to read their
status according to color. For information on using the LEDs for problem
solving, see “Solving Problems Indicated by LEDs” on page 46.
DUA1750-0AAA01.book Page 14 Friday, December 5, 2003 10:24 AM
Switch — Front View Detail 15
Table 4 LED behavior
Console Port
(Switch 3226)
The console port allows you to connect a terminal and perform remote or
local out-of-band management. The console port uses a standard null
modem cable and is set to auto-baud, 8 data bits, no parity and 1 stop
bit.
LED Color Indicates
Port Status LEDs
Green A 100 Mbps link is present.
Yellow A 10 Mbps link is present.
Green flashing There is 100 Mbps activity on the port.
Yellow flashing There is 10 Mbps activity on the port.
Yellow to
Green flashing
A link is present, but the port is disabled or the port has
failed its loopback test.
Off No link is present.
Module Active LEDs
Green The SFP Module is present and has a link. The corresponding
10/100/1000 Mbps port is disabled.
Off No SFP Module has been inserted. The corresponding
10/100/1000 port can be used.
Combo Port Status LEDs
Green A 1000 Mbps link is present.
Yellow A 10/100 Mbps link is present.
Green Flashing There is 1000 Mbps activity on the port.
Yellow Flashing There is 10/100 Mbps activity on the port.
Yellow to
Green flashing
A link is present, but the port is disabled or the port has
failed its loopback test.
Off No link is present.
Power / Self Test LED
Green The Switch is powered-up and operating normally.
Green flashing The Switch is starting up or the Switch software is being
upgraded.
Yellow The Switch is reporting a fault. (see Chapter 4, “Problem
Solving”)
Off The Switch is not receiving power or there is a fault with the
Power Supply Unit.
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16 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3226 AND SWITCH 3250
Switch — Rear
View Detail
Figure 3 Switch 3226 — rear view
Figure 4 Switch 3250 — rear view
Power Socket The Switch automatically adjusts its power setting to any supply voltage
in the range 100-240 VAC.
Redundant Power
System Socket
To protect against internal power supply failure, you can use this socket
to connect the Switch to a SuperStack 3 Advanced Redundant Power
System. See “Connecting a Redundant Power System” on page 24.
Console Port
(Switch 3250)
The console port allows you to connect a terminal and perform remote or
local out-of-band management. The console port uses a standard null
modem cable and is set to auto-baud, 8 data bits, no parity and 1 stop
bit.
Power Socket Redundant Power System Socket
Console Port Redundant Power System Socket
Console
19200,8,1,N
Power Socket
DUA1750-0AAA01.book Page 16 Friday, December 5, 2003 10:24 AM
Default Settings 17
Default Settings Table 5 shows the default settings for the Switch:
Table 5 Default Settings
If you initialize a Switch unit by selecting System > Control > Initialize in
the Web interface or by entering system control initialize
in
the Command Line Interface, the following settings are retained to allow
you to connect to and manage the Switch:
IP Address
Subnet Mask
Default Gateway
Feature Switch
IP Configuration Automatic by DHCP client
Port Status Enabled
Port Speed All ports are auto-negotiated
Duplex Mode All ports are auto-negotiated
Flow Control Disabled in half duplex 10/100 ports
Auto-negotiated in full duplex 10/100 ports
Disabled for 10/100/1000 ports
Broadcast Storm Control Enabled
Virtual LANs (VLANs) All ports belong to the untagged Default VLAN
(VLAN 1) with IEEE Std 802.1Q-1998 learning
operational
Link Aggregation Control
Protocol (LACP)
Disabled per port
Multicast Filtering IGMP Filtering enabled
Rapid Spanning Tree Protocol Enabled
Spanning Tree Fast Start Enabled on 10/100 ports
Disabled on 10/100/1000 ports
Traffic Prioritization All ports prioritize NBX VoIP traffic (LAN and IP).
All ports set to “best effort” for all other traffic.
Port Security Disabled per port
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18 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 3226 AND SWITCH 3250
DUA1750-0AAA01.book Page 18 Friday, December 5, 2003 10:24 AM
2
INSTALLING THE SWITCH
This chapter contains the information you need to install and set up the
Switch. It covers the following topics:
Package Contents
Choosing a Suitable Site
Rack-mounting
Placing Units On Top of Each Other
The Power-up Sequence
WARNING: Safety Information. Before installing or removing any
components from the Switch 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 ou d'entamer une procédure de maintenance,
lisez les informations relatives à la sécurité qui se trouvent dans
l'Appendice A (Appendix A) de ce guide.
VORSICHT: Sicherheitsinformationen. Bevor Sie Komponenten aus
dem Switch entfernen oder dem Switch hinzufuegen oder
Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen,
die in Anhang A (Appendix A) in diesem Handbuch aufgefuehrt sind.
DUA1750-0AAA01.book Page 19 Friday, December 5, 2003 10:24 AM
20 CHAPTER 2: INSTALLING THE SWITCH
Package Contents Switch unit
CD-ROM
Getting Started Guide (this guide)
Management Quick Reference Guide
Release Notes
Unit Information Labels
Warranty Information
Power Cord
2 x Mounting brackets
4 x Screws
4 x Rubber feet
Choosing a Suitable
Site
The Switch is suited for use on a desktop, either free standing or
mounted in a standard 19-inch equipment rack. Alternatively, the Switch
can be mounted in a wiring closet or equipment room, as an aggregator
for other Hubs and Switches. 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.
DUA1750-0AAA01.book Page 20 Friday, December 5, 2003 10:24 AM
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3com 3CR17501-91 - SuperStack 3 Switch 3250 User manual

Category
Network switches
Type
User manual

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