http://www.3com.com/
Part No. DUA1698-8AAA02
Published August 2000
SuperStack
®
3
Switch 3300 MM
User Guide
3C16988A
16985ua.bk Page 1 Thursday, September 7, 2000 9:15 AM
3Com Corporation
5400 Bayfront Plaza
Santa Clara, California
95052-8145
Copyright © 2000, 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,Net Age, SmartAgent, SuperStack and Transcend are registered trademarks of 3Com Corporation. The
3Com logo, CoreBuilder and PACE are trademarks of 3Com Corporation.
Novell and NetWare are registered trademarks of Novell Incorporated.
Adobe and Acrobat are registered trademarks of Adobe Systems Incorporated.
All other company and product names may be trademarks of the respective companies with which they are
associated.
Environmental Statement
It is a 3Com policy to be environmentally friendly in all operations. This manual is printed on paper that comes
from sustainable, managed European forests. The production process for making the pulp has a reduced AOX
level (adsorbable organic halogen) resulting in elemental chlorine-free paper.
The paper is fully biodegradable and recyclable.
16985ua.bk Page 2 Thursday, September 7, 2000 9:15 AM
C
ONTENTS
A
BOUT
T
HIS
G
UIDE
Conventions 8
Related Documentation 9
Year 2000 Compliance 10
Documentation Comments 10
Product Registration 10
1
I
NTRODUCING
THE
S
WITCH
3300 MM
About the SuperStack 3 Switch 3300 MM 12
Summary of Features 12
Switch 3300 MM — Front View Detail 13
10BASE-T/
100BASE-TX Ports 13
LEDs 13
Switch 3300 MM — Rear View Detail 15
Unit Information Label 15
Power Socket 15
Redundant Power System Socket 15
Console Port 16
Matrix Ports 16
Network Configuration Examples 17
Switch 3300 MM as a Segmentation Switch 17
Switch 3300 MM as a Collapsed Backbone Switch 18
Switch 3300 MM as a Desktop Switch 19
Configuration Rules for Fast Ethernet 20
Configuration Rules with Full Duplex 21
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2
I
NSTALLING
THE
S
WITCH
Choosing a Suitable Site 24
Rack-mounting 24
Placing Units On Top of Each Other 25
Stacking Units 26
Stacking Two Units 26
Stacking Up To Four Units 27
The Power-up Sequence 29
Connecting a Redundant Power System 29
Powering-up the Switch 3300 MM 29
Checking for Correct Operation 29
Choosing the Correct Cables 30
Solving Problems Indicated by LEDs 31
Managing the Switch 32
A
S
AFETY
I
NFORMATION
Important Safety Information 34
L’information de Sécurité Importante 36
Wichtige Sicherheitsinformationen 38
B
P
IN
-
OUTS
Null Modem Cable 39
PC-AT Serial Cable 39
Modem Cable 40
RJ45 Pin Assignments 40
C
T
ECHNICAL
S
PECIFICATIONS
D
T
ECHNICAL
S
UPPORT
Online Technical Services 45
World Wide Web Site 45
3Com Knowledgebase Web Services 45
3Com FTP Site 46
Support from Your Network Supplier 46
Support from 3Com 46
Returning Products for Repair 48
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16985ua.bk Page vi Thursday, September 7, 2000 9:15 AM
A
BOUT
T
HIS
G
UIDE
This guide provides all the information you need to install and use a
SuperStack
®
3 Switch 3300 MM (3C16988A) unit with default settings. If
you want to change the way the Switch works using management
software, refer to the “SuperStack Switch Management Guide”.
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
differs 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/
This guide makes reference to the SuperStack 3 Switch 3300 MM. This
Switch has three fixed Matrix Ports on its rear panel and can be used to
stack any 1100/3300 family Switch. Note that any 1100/3300 family
Switch fitted with a Matrix Module can also be used to stack Switches.
All the Switches mentioned in this guide are compatible with the
Switches found within the SuperStack 1100/3300 family range.
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8 A
BOUT
T
HIS
G
UIDE
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
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Related Documentation 9
Related
Documentation
In addition to this guide, each Switch 3300 MM document set includes
the following:
■
Management Guide
This guide contains all the management information for the Switch.
■
Quick Reference Guide
This guide contains a quick summary of the hardware and software
information for the Switch.
■
Quick Installation Guide
This guide contains a summary of the package contents, and a quick
summary of the installation information for the Switch.
■
Release Notes
These notes provide information about the current software release,
including new features, modifications, and known problems.
■
SuperStack Switch Help
This help provides information about the web interface software of
the Switch. It is supplied on the SuperStack Switch CD-ROM.
■
SuperStack Switch README File
This file provides information about the current software release,
including new features, modifications, and known problems. It is
supplied on the SuperStack Switch CD-ROM.
In addition, there are other publications you may find useful:
■
Documentation accompanying the Advanced Redundant Power
System.
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
.
Table 2
Text Conventions (continued)
Convention Description
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10 A
BOUT
T
HIS
G
UIDE
Year 2000
Compliance
For information on Year 2000 compliance and 3Com products, visit the
3Com Year 2000 Web page:
http://www.3com.com/products/yr2000.html
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:
pddtechpubs_comments@3com.com
Please include the following information when commenting:
■
Document title
■
Document part number (on the title page)
■
Page number (if appropriate)
Example:
■
SuperStack 3 Switch 3300 MM User Guide
■
Part Number DUA1698-8AAA02
■
Page 21
Product
Registration
You can now register your SuperStack Switch on the 3Com web site to
receive up-to-date information on your product:
http://support.3com.com/warrantyregistration/register.pl
16985ua.bk Page 10 Thursday, September 7, 2000 9:15 AM
1
I
NTRODUCING
THE
S
WITCH
3300 MM
This chapter contains introductory information about the Switch and how
it can be used in your network. It covers the following topics:
■
About the SuperStack 3 Switch 3300 MM
■
Switch 3300 MM — Front View Detail
■
Switch 3300 MM — Rear View Detail
■
Network Configuration Examples
■
Configuration Rules for Fast Ethernet
■
Configuration Rules with Full Duplex
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12 C
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WITCH
3300 MM
About the
SuperStack 3
Switch 3300 MM
The SuperStack
®
3 Switch 3300 MM connects:
■
your existing 10Mbps devices.
■
high-performance workgroups with a 100Mbps backbone or server
connection.
■
users to dedicated 100Mbps ports in one switch.
In addition, as part of the 3Com
®
SuperStack range of products, you can
combine it with any SuperStack II or SuperStack 3 system as your network
grows.
Summary of Features
The Switch has the following hardware features:
■
24 Fast Ethernet auto-negotiating 10BASE-T/100BASE-TX ports
■
Three Matrix Ports to stack the Switch with up to three other units
from the Switch 1100/3300 family using three Matrix Cables.
■
SuperStack architecture
■
Connects to Redundant Power System/Advanced Redundant
Power System
■
19-inch rack or stand-alone mounting
For information about the software features of the Switch, refer to the
“SuperStack Switch Management Guide”.
16985ua.bk Page 12 Thursday, September 7, 2000 9:15 AM
Switch 3300 MM — Front View Detail 13
Switch 3300 MM —
Front View Detail
Figure 1
Switch 3300 MM — front view
10BASE-T/
100BASE-TX Ports
The Switch has 24 auto-negotiating 10BASE-T/100BASE-TX ports
configured as MDIX (cross-over). These ports can be set to 10BASE-T half
duplex, 10BASE-T full duplex, 100BASE-TX half duplex, 100BASE-TX full
duplex, or they can automatically detect the speed and duplex mode of a
link and provide the appropriate connection. The maximum segment
length is 100m (328ft) over Category 5 twisted pair cable.
As these ports are configured as MDIX (cross-over), you need to use a
cross-over cable to connect to devices whose ports are MDIX-only. See
“Choosing the Correct Cables”
on
page 30
for more information.
LEDs
Table 3
(overleaf) lists the LEDs visible on the front of the Switch, and
their states according to color. For information on using the LEDs for
problem solving, see “Solving Problems Indicated by LEDs”
on page 31.
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WITCH
3300 MM
Table 3
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 link is present, and the port is enabled.
Green flashing A link is present, but the port is disabled.
Off No link is present.
Unit LEDs
1–8 Green The Switch forms a stack with other Switch units;
the LED indicates the position of the Switch in the
stack and that a link is present. Note that although
there are eight LEDs, only four Switch units can be
stacked at present.
Off The Switch is stand-alone.
Power/Self Test LED
Green The Switch is powered-up.
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.
16985ua.bk Page 14 Thursday, September 7, 2000 9:15 AM
Switch 3300 MM — Rear View Detail 15
Switch 3300 MM —
Rear View Detail
Figure 2
Switch 3300 MM — 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 90–240V A.C.
Redundant Power
System Socket
To protect against internal power supply failure, you can use this socket
to connect a SuperStack Advanced Redundant Power System (ARPS) to
the Switch. See “Connecting a Redundant Power System”
on page 29.
Unit 3
Console
(max) 19200,8,1,N
Switch 3300 MM 24 Port
MAC Addr: XXXXXXXXXX
3C16988
Serial XXXXXXXXXXXX
Power Socket
Unit Information Label
Redundant Power System Socket
Console Port
Matrix Ports
Unit 2 Unit 4
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16 C
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3300 MM
Console Port
The console port allows you to connect a terminal and perform remote or
local out-of-band management. The console port uses standard null
modem cable and is set to auto-baud, 8 data bits, no parity and 1 stop
bit.
Matrix Ports
The Matrix ports allow you to stack the Switch with up to three other
units from the Switch 1100/3300 family using three Matrix Cables.
For more information about the role of the Matrix ports, see “Stacking
Units” on page 26.
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Network Configuration Examples 17
Network
Configuration
Examples
The following illustrations show some examples of how the Switch can be
used in your network.
Switch 3300 MM as a
Segmentation Switch
The example in Figure 3
shows how a Switch 3300 MM stack can
segment a network of shared 10Mbps and 100Mbps connections. There
is a 10/100 shared segment on each floor, and these segments are
connected to the Switch which is positioned in the basement.
Figure 3
Using the Switch to segment your network
Dual SpeedHub 500
Dual SpeedHub 500
Endstations on shared10Mbps
and 100Mbps connections
Endstations on shared10Mbps
and 100Mbps connections
Endstations and servers onswitched
10Mbps and 100Mbps connections
Local serveronashared
100Mbps connection
Local serveronashared
100Mbps connection
100Mbps
Switch 1100/3300
Switch 3300MM
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WITCH
3300 MM
Switch 3300 MM as a
Collapsed Backbone
Switch
The example in Figure 4
shows how a Switch 3300 MM stack can act as a
backbone for both shared and switched network segments.
Figure 4
Using the Switch as a collapsed backbone
Switch 1100/3300
Endstations on
switched 10Mbps
connections
Endstations on switched
10Mbps connections
Servers ondedicated
100Mbps connections
Switch 1100
Switch 1100
Dual SpeedHub 500
Dual SpeedHub 500
Endstations on
switched 10Mbps
connections
Endstations on
shared 10Mbps
and 100Mbps
connections
Endstations on
shared 10Mbps
and 100Mbps
connections
100Mbps
Switch 3300 MM
16985ua.bk Page 18 Thursday, September 7, 2000 9:15 AM
Network Configuration Examples 19
Switch 3300 MM as a
Desktop Switch
The example in Figure 5
shows how a Switch 3300 MM can be used,
within a stack, for a group of users that require dedicated 10Mbps or
100Mbps connections to the desktop. The Switch 3300 SM provides a
Gigabit Ethernet connection to a SuperStack II Switch 9300 in the
basement whilst the Switch 3300 TM provides a Gigabit Ethernet
connection to a local server.
Figure 5
Using the Switch in a desktop environment
Switch 9300
Endstations on switched 10Mbps
or 100Mbps connections
Local serveronaswitched
1000Mbps connection
Switch 3300:
1000Mbps
MM
XM
TM
SM
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S
WITCH
3300 MM
Configuration Rules
for Fast Ethernet
The topology rules for 100Mbps Fast Ethernet are slightly different to
those for 10Mbps Ethernet. Figure 6
illustrates the key topology rules and
provides examples of how they allow for large-scale Fast Ethernet
networks.
Figure 6
Fast Ethernet configuration rules
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