3com SuperStack 3 4900 Getting Started Manual

Category
Network switches
Type
Getting Started Manual
http://www.3com.com/
Part No. DUA1770-0AAA04
Published August 2002
SuperStack
®
3
Switch 4900 Series
Getting Started Guide
Switch 4900 (3C17700)
Switch 4900 SX (3C17702)
Switch 4924 (3C17701)
Switch 4950 (3C17706)
3Com Corporation
5400 Bayfront Plaza
Santa Clara, California
95052-8145
Copyright © 2002, 3Com Technologies. 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 Technologies.
3Com Technologies reserves the right to revise this documentation and to make changes in content from time
to time without obligation on the part of 3Com Technologies to provide notification of such revision or
change.
3Com Technologies 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, the 3Com logo, and SuperStack are registered trademarks of 3Com Corporation.
IEEE and 802 are registered trademarks of the Institute of Electrical and Electronics Engineers, Inc.
Intel and Pentium are registered trademarks of Intel Corporation. Microsoft, MS-DOS, Windows, and Windows
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All other company and product names may be trademarks of the respective companies with which they are
associated.
ENVIRONMENTAL STATEMENT
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
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CONTENTS
ABOUT THIS GUIDE
Conventions 8
Related Documentation 9
Accessing Online Documentation 9
Product Registration 10
Documentation Comments 10
1 INTRODUCING THE
S
UPERSTACK 3 SWITCH 4900 SERIES
About the Switches 12
Summary of Hardware Features 13
Switch — Front View Detail 14
100/1000BASE-T and 10/100/1000BASE-T Ports 16
1000BASE-SX Ports 16
GBIC Ports 16
LEDs 17
Switch — Rear View Detail 18
Unit Information Label 19
Power Socket 19
Redundant Power System Socket 19
Console Port 20
Expansion Module Slot 20
Default Settings 20
2 INSTALLING THE SWITCH
Package Contents 22
Choosing a Suitable Site 22
Rack-mounting 23
Placing Units On Top of Each Other 24
Creating an XRN Distributed Fabric 24
How To Interconnect Units 25
Rules For Interconnecting Units 25
The Power-up Sequence 26
Powering-up the Switch 26
Checking for Correct Operation of LEDs 26
Connecting a Redundant Power System 27
Choosing the Correct 10/100/1000BASE-T Cables 27
Choosing the Correct Fiber Cables 28
Switch 4950 — GBIC Operation 29
Approved GBIC Transceivers 29
Inserting a GBIC Transceiver 29
3 SETTING UP FOR MANAGEMENT
Setting Up Overview 34
IP Configuration 35
Preparing for Management 36
Manually Configuring IP Information 37
Connecting to a Front Panel Port 37
Connecting to the Console Port 40
Viewing Automatically Configured IP Information 43
Using 3Com Network Supervisor 43
Connecting to the Console Port 44
Methods of Managing a Switch 46
Command Line Interface Management 46
Web Interface Management 47
SNMP Management 47
Setting Up Command Line Interface Management 48
CLI Management via the Console Port 48
CLI Management over the Network 48
Setting Up Web Interface Management 49
Pre-requisites 49
Web Management Over the Network 50
Setting Up SNMP Management 51
Pre-requisites 51
Default Users and Passwords 51
Changing Default Passwords 52
4 PROBLEM SOLVING
Solving Problems Indicated by LEDs 54
Solving Hardware Problems 55
Solving Communication Problems 57
Solving Software Upgrade Problems 58
A SAFETY INFORMATION
Important Safety Information 60
L’information de Sécurité Importante 63
Wichtige Sicherheitsinformationen 66
B PIN-OUTS
Null Modem Cable 69
PC-AT Serial Cable 69
Modem Cable 70
RJ-45 Pin Assignments 70
C TECHNICAL SPECIFICATIONS
D TECHNICAL SUPPORT
Online Technical Services 75
World Wide Web Site 75
3Com Knowledgebase Web Services 75
3Com FTP Site 76
Support from Your Network Supplier 76
Support from 3Com 77
Email Support 77
Telephone Support 77
Returning Products for Repair 79
INDEX
REGULATORY NOTICES
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 4900 (3C17700)
SuperStack
®
3 Switch 4900 SX (3C17702)
SuperStack
®
3 Switch 4924 (3C17701)
SuperStack
®
3 Switch 4950 (3C17706)
This guide is intended for use with all the 4900 Series Switches listed
above. For illustrative purposes all pictures and example screens show the
4900 model, however, all procedures apply to all the other Switches listed
unless otherwise stated.
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).
If the information in the release notes that are shipped with your product
differ from the information in this guide, follow the instructions in the
release notes.
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/
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 “enterin 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.
Related Documentation 9
Related
Documentation
In addition to this guide, each Switch documentation set includes the
following:
SuperStack 3 Management Quick Reference Guide
This guide contains:
a list of software features supported by each Switch.
a summary of the web interface and command line interface
commands for the Switch.
Release Notes
These notes provide information about the current software release,
including new features, modifications, and known problems.
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.
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.
There are other publications you may find useful:
Documentation accompanying the Advanced Redundant Power
System.
Documentation accompanying the Expansion Modules.
Documentation accompanying 3Com Network Supervisor. This is
supplied on the CD-ROM that accompanies the Switch.
Accessing Online
Documentation
The CD-ROM supplied with your Switch contains the following online
documentation:
SuperStack 3 Switch Implementation Guide (PDF format)
SuperStack 3 Switch Management Interface Reference Guide (HTML
format)
Other documentation relating to the Switch 4900 Series (PDF format)
10 ABOUT THIS GUIDE
To access the online documentation from the CD-ROM:
1 Insert the CD-ROM into the relevant 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.
The HTML Reference Guide is stored in the Docs/referenceguide
on the CD-ROM. The documentation is accessed using the index.htm
file.
The PDF Implementation Guide is stored in the
Docs/implementation directory of the CD-ROM.
3Com recommends that you copy the Docs/referenceguide
directory as a whole to maintain the structure of the files.
Product
Registration
You can register your SuperStack 3 Switch on the 3Com Web site to
receive up-to-date information on your product:
http://support.3com.com/registration/frontpg.pl
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 DUA1770-0AAA0x
SuperStack 3 Switch 4900 Series Getting Started Guide
Page 21
1
INTRODUCING THE
S
UPERSTACK 3 SWITCH 4900 SERIES
This chapter contains introductory information about the Switch 4900,
4900 SX, 4924 and 4950 and how they can be used in your network. It
covers summary information about the hardware.
The information for all the Switches in the Switch 4900 Series is the same
unless otherwise stated.
About the Switches
Summary of Hardware Features
Switch — Front View Detail
100/1000BASE-T and 10/100/1000BASE-T Ports
1000BASE-SX Ports
GBIC Ports
LEDs
Switch — Rear View Detail
Unit Information Label
Power Socket
Redundant Power System Socket
Console Port
Expansion Module Slot
Default Settings
12 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES
About the Switches The Switch 4900 connects your existing 100 Mbps devices and
high-performance workgroups with a 1000 Mbps copper backbone or
server connection.
The Switch 4900 SX connects your existing 1000 Mbps devices and
high-performance workgroups with a 1000BASE-SX fiber backbone or
server connection.
The Switch 4924 connects your existing 10 Mbps and 100 Mbps
devices and high-performance workgroups to a 1000 Mbps copper
backbone or server connection.
The Switch 4950 is a 10/100/1000 Mbps mixed media device that
allows you to connect your existing 10/100/1000 Mbps devices and
high-performance workgroups to a fiber or copper gigabit backbone
or server connection.
You can also interconnect any combination of two Switches from the
SuperStack
®
4900 Series or 3Com Switch 4050/4060 range to create an
XRN Distributed Fabric. This allows you to create a highly resilient core
around which you can build your network. For more information about
interconnecting Switches, see “Creating an XRN Distributed Fabric”
on
page 24
. For more information about 3Com XRN Technology and how to
use it in your network, refer to the Implementation Guide on the
CD-ROM that accompanies the Switch.
For information about using the software features of the Switch, refer to
the “SuperStack 3 Switch Management Interface Reference Guide” on
the CD-ROM that accompanies the Switch.
About the Switches 13
Summary of
Hardware Features
Table 3 summarizes the hardware features that are supported by the
Switches.
Table 3 Hardware features
Feature Switch 4900 Series
Fast Ethernet
and Gigabit
Ethernet Ports
Switch 4900: 12 Auto-negotiating 100BASE-TX/1000BASE-T
ports
Switch 4900 SX: 12 Auto-negotiating 1000BASE-SX ports
Switch 4924: 24 Auto-negotiating
10BASE-T/100BASE-TX/1000BASE-T ports
Switch 4950: 12 Auto-negotiating
10BASE-T/100BASE-TX/1000BASE-T, 6 1000BASE-SX and
6 GBIC ports
Addresses Up to 12,000 supported
Up to 64 permanent entries
Forwarding
Modes
Store and Forward
Duplex Modes Half duplex only supported on
10BASE-T/100BASE-TX/1000BASE-T ports in 10/100 Mbps
mode
All 1000 Mbps ports are full duplex only
Flow Control Supported on all ports
Smart
auto-sensing
Supported on all 10BASE-T/100BASE-TX/1000BASE-T ports
Not supported on 1000BASE-SX and GBIC ports
Traffic
Prioritization
Supported (IEEE Std 802.1D, 1998 Edition)
Four traffic queues per port
Layer 3
Switching
Support for wire-speed IP routing
RPS Support Connects to SuperStack 3 Advanced Redundant Power System
(ARPS) (3C16071B)
XRN Support eXpandable Resilient Networking (XRN) support. Allows
interconnection of two units to create a Distributed Fabric.
Mounting 19-inch rack or stand-alone mounting
14 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES
Switch Front
View Detail
Figure 1 Switch 4900 — front view
Figure 2 Switch 4900 SX — front view
Switch — Front View Detail 15
Figure 3 Switch 4924 — front view
Figure 4 Switch 4950 — 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.
16 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES
100/1000BASE-T and
10/100/1000BASE-T
Ports
The 100BASE-TX/1000BASE-T and 10BASE-T/100BASE-TX/1000BASE-T
ports have RJ-45 connectors and are configured as Auto MDIX
(cross-over).
The default state for these ports is auto-negotiation enabled, where the
speed, duplex and flow control modes of a link are automatically
detected to provide the highest available bandwidth with the link partner.
Alternatively, auto-negotiation can be disabled. These ports can be
manually configured to 10 Mbps half duplex (if supported), 100 Mbps
half duplex, 10 Mbps full duplex (if supported), or 100 Mbps full duplex.
It is not possible to manually configure a 1000BASE-T link as
auto-negotiation is mandatory in the 1000BASE-T standard.
The maximum segment length is 100 m (328 ft) over Category 5 twisted
pair cable.
1000BASE-T operation only supports full-duplex mode.
10BASE-T (10 Mbps) is only supported on Switch 4924 and 4950.
1000BASE-SX Ports 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 and the flow control setting can be manually configured.
1000BASE-SX ports do not support auto-negotiation of speed and only
support full duplex mode.
GBIC Ports GBIC ports support fiber Gigabit Ethernet short-wave (SX), long-wave
(LX) and long-haul (LH70) GBIC transceivers in any combination. This
offers you the flexibility of using GBIC 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 and the flow control setting can be manually configured.
Switch — Front View Detail 17
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 “Checking for Correct Operation of LEDs”
on page 26.
Table 4 LED behavior
LED Color Indicates
Port Status LEDs
Packet Yellow Packets are being transmitted/received on the port.
Off No packets are being transmitted/received on the port.
Status Green A high speed (1000 Mbps) link is present, and the port
is enabled.
Green flashing A high speed (1000 Mbps) link is present, but the port
is disabled.
Yellow A low speed (100 Mbps on 4900, 10/100 Mbps on
4924/4950) link is present, and the port is enabled.
(Not applicable on 4900 SX.)
Yellow flashing A low speed (100 Mbps on 4900, 10/100 Mbps on
4924/4950) link is present, but the port is disabled.
(Not applicable on 4900 SX.)
Off No link is present.
Module Status LEDs
Green The Module is installed and supported. The Link Status
has been determined for a single port Module.
Yellow The Module is installed and supported. The Module
has multi-ports or there is no Link for a single port
Module.
Yellow flashing The Module is installed but not supported. Note that
the Switch will continue to operate normally.
Off The Module is not installed.
Unit LEDs
1–4 Green Determines the identity of the Switch when
interconnected to another Switch to create an XRN
Distributed Fabric and that a link is present.
Off A fault has occurred.
Power/Self Test LED
Green The Switch is powered-up and operating normally.
Green flashing The Switch is either downloading software or is
initializing (which includes running a Power On Self
Test).
Yellow The Switch has failed its Power On Self Test.
Off The Switch is not receiving power.
18 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES
Switch — Rear
View Detail
Figure 5 Switch 4900 — rear view
Figure 6 Switch 4900 SX — rear view
Layer 3 LED
Green The Switch software supports Layer 3.
Off The Switch software does not support Layer 3.
LED Color Indicates
Switch — Rear View Detail 19
Figure 7 Switch 4924 — rear view
Figure 8 Switch 4950 — rear view
Unit Information
Label
This label shows the following:
The 3Com product name of the Switch
The 3Com 3C number of the Switch
The unique MAC address (Ethernet address) of the Switch
The serial number of the Switch
You may need this information for fault reporting purposes.
Power Socket The Switch automatically adjusts its power setting to any supply voltage
in the range 90-240 VAC.
Redundant Power
System Socket
To protect against internal power supply failure, you can use this socket
to connect a SuperStack 3 Advanced Redundant Power System (RPS) to
the Switch. See “Connecting a Redundant Power System”
on page 27.
20 CHAPTER 1: INTRODUCING THE SUPERSTACK 3 SWITCH 4900 SERIES
Console Port 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 (up to a maximum of 19200 baud),
8 data bits, no parity and 1 stop bit.
Expansion Module
Slot
You can use this slot to install an Expansion Module. Contact your
supplier for further information on the range of Expansion Modules
supported by your Switch.
WARNING:
When an Expansion Module is not installed, ensure the
blanking plate is fitted by tightening all screws with a suitable tool.
Default Settings Table 5 shows the default settings for the Switches. If you initialize one of
the Switch units, it is returned to these defaults.
Table 5 Default Setting
Feature Switch 4900 Series
Port Status Enabled
Port Speed Auto-negotiated
Duplex Mode Auto-negotiated
Flow Control Auto-negotiated
Broadcast Storm Control Enabled
High threshold: 3000 broadcast frames per
second — Notify and filter
Low threshold: 1500 broadcast frames per
second — Notify and unfilter
Virtual LANs (VLANs) All ports belong to the untagged Default VLAN
(VLAN 1)
Multicast Filtering IGMP filtering enabled
Rapid Spanning Tree Protocol Enabled
Link Aggregation Control
Protocol (LACP)
Enabled
Smart Auto-sensing Switch 4900, 4924, and 4950: Enabled
Switch 4900 SX: Not applicable
IP Address 169.254.100.100
*
* This default IP address is used if the unit is operating in standalone mode, and/or no other
Switches on the network have this IP address. If this default IP address is already in use then the
Switch detects this and configures itself with an IP address in the range 169.254.1.0 to
169.254.254.255.
Subnet Mask 255.255.0.0
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3com SuperStack 3 4900 Getting Started Manual

Category
Network switches
Type
Getting Started Manual

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