3Com 3C16987A Switch User Manual

SuperStack® 3
Switch 3300 SM
User Guide
3C16987A
http://www.3com.com/
Part No. DUA1698-7AAA02
Published August 2000
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
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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,Net Age, SmartAgent, SuperStack and Transcend are registered trademarks of 3Com Corporation. The
3Com logo, CoreBuilder and PACE are trademarks of 3Com Corporation.
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CONTENTS
ABOUT THIS GUIDE
Conventions 8
Related Documentation 9
Year 2000 Compliance 10
Documentation Comments 10
Product Registration 10
1
INTRODUCING
THE
SWITCH 3300 SM
About the SuperStack 3 Switch 3300 SM 12
Summary of Features 12
Switch 3300 SM — Front View Detail 13
10BASE-T/
100BASE-TX Ports 13
1000BASE-SX Port 13
LEDs 13
Switch 3300 SM — Rear View Detail 15
Unit Information Label 15
Power Socket 15
Redundant Power System Socket 15
Console Port 16
Matrix Port 16
Network Configuration Examples 17
Switch 3300 SM as a Segmentation Switch 17
Switch 3300 SM as a Collapsed Backbone Switch
Switch 3300 SM as a Desktop Switch 19
Configuration Rules for Fast Ethernet 20
Configuration Rules with Full Duplex 21
Configuration Rules for Gigabit Ethernet 22
Configuration Rules for the 3300 SM 22
18
2
INSTALLING
THE
SWITCH
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
Powering-up the Switch 3300 SM 29
Checking for Correct Operation 29
Choosing the Correct Cables 30
Solving Problems Indicated by LEDs 31
Managing the Switch 32
A
SAFETY INFORMATION
Important Safety Information 34
L’information de Sécurité Importante 36
Wichtige Sicherheitsinformationen 38
B
PIN-OUTS
Null Modem Cable 41
PC-AT Serial Cable 41
Modem Cable 42
RJ45 Pin Assignments 42
C
TECHNICAL SPECIFICATIONS
D
TECHNICAL SUPPORT
Online Technical Services 47
World Wide Web Site 47
3Com Knowledgebase Web Services 47
3Com FTP Site 48
Support from Your Network Supplier 48
Support from 3Com 48
Returning Products for Repair 50
29
GLOSSARY
INDEX
3COM CORPORATION LIMITED WARRANTY
REGULATORY NOTICES
ABOUT THIS GUIDE
This guide provides all the information you need to install and use a
SuperStack ® 3 Switch 3300 SM (3C16987A) 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.
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
Related Documentation
9
Table 2 Text Conventions (continued)
Convention
Description
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
In addition to this guide, each Switch 3300 SM 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.
10
ABOUT THIS GUIDE
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:
Product
Registration
■
SuperStack 3 Switch 3300 SM User Guide
■
Part Number DUA1698-7AAA02
■
Page 21
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
1
INTRODUCING THE SWITCH 3300 SM
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 SM
■
Switch 3300 SM — Front View Detail
■
Switch 3300 SM — Rear View Detail
■
Network Configuration Examples
■
Configuration Rules for Fast Ethernet
■
Configuration Rules with Full Duplex
■
Configuration Rules for Gigabit Ethernet
■
Configuration Rules for the 3300 SM
12
CHAPTER 1: INTRODUCING THE SWITCH 3300 SM
About the
SuperStack 3
Switch 3300 SM
The SuperStack® 3 Switch 3300 SM connects:
■
your existing 10Mbps devices.
■
high-performance workgroups with a 100Mbps or 1000Mbps
backbone or server connection.
■
users to dedicated 100Mbps ports in one switch.
In addition, as part of the 3Com® SuperStack 3 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
■
1000BASE-SX Gigabit Ethernet port
■
One Matrix Port for connecting units in the Switch 1100/3300 family
to form a stack. This enables you to:
■
■
■
Connect two units back-to-back using a single Matrix Cable
Stack the Switch with up to three other units in the Switch
1100/3300 family, when one of the units is a Switch 3300 MM unit
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”.
Switch 3300 SM — Front View Detail
13
Switch 3300 SM —
Front View Detail
Figure 1 Switch 3300 SM — 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.
1000BASE-SX Port
LEDs
The Switch has a Gigabit Ethernet Port that provides a 1000Mbps
connection to another Gigabit Ethernet device. This port uses 62.5 µm or
50 µm multimode fiber optic cable with MT-RJ duplex connectors.
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.
14
CHAPTER 1: INTRODUCING THE SWITCH 3300 SM
Table 3 LED behavior
LED
Color
Indicates
Port Status LEDs
Packet
Status
Yellow
Packets are being transmitted/received on the port.
Off
No packets are being transmitted/received on the
port.
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.
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.
Unit LEDs
1–8
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.
Switch 3300 SM — Rear View Detail
15
Switch 3300 SM —
Rear View Detail
Figure 2 Switch 3300 SM — rear view
Unit Information Label
Switch 3300 SM 24 Port
3C16987
MAC Addr: XXXXXXXXXX
Serial
XXXXXXXXXXXX
Console
(max) 19200,8,1,N
Matrix Port
Power Socket
Redundant Power System Socket
Unit Information
Label
Console Port
Matrix Port
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.
16
CHAPTER 1: INTRODUCING THE SWITCH 3300 SM
Console Port
Matrix 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.
The Matrix Port allows you to:
■
Stack the Switch with another unit in the Switch 1100/3300 family
using a single Matrix Cable
■
Stack the Switch with up to three other units in the Switch 1100/3300
family, when one of the units is a Switch 3300 MM unit
For more information about the role of the Matrix Port, see “Stacking
Units” on page 26.
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 SM as a
Segmentation Switch
The example in Figure 3 shows how a Switch 3300 SM stack can segment
a network of shared 10Mbps,100Mbps and 1000Mbps 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. The Switch
3300 SM also provides a Gigabit Ethernet connection to a local server.
Figure 3 Using the Switch to segment your network
Dual Speed Hub 500
Endstations on shared 10Mbps
and 100Mbps connections
Dual Speed Hub 500
Endstations on shared 10Mbps
and 100Mbps connections
Local server on a shared
100Mbps connection
Local server on a shared
100Mbps connection
100Mbps
Switch 3300 SM stack
Endstations and servers on switched 10Mbps,
100Mbps and 1000Mbps connections
1000Mbps
18
CHAPTER 1: INTRODUCING THE SWITCH 3300 SM
Switch 3300 SM as a
Collapsed Backbone
Switch
The example in Figure 4 shows how a Switch 3300 SM stack can act as a
backbone for both shared and switched network segments.
Figure 4 Using the Switch as a collapsed backbone
Endstations on
switched 10Mbps
connections
Endstations on
shared 10Mbps
and 100Mbps
connections
Switch 1100
Dual Speed Hub 500
Endstations on
switched 10Mbps
connections
Endstations on
shared 10Mbps
and 100Mbps
connections
Switch 1100
Dual Speed Hub 500
100Mbps
Switch 3300 SM stack
Endstations on switched
10Mbps connections
Servers on dedicated
1000Mbps connections
Network Configuration Examples
Switch 3300 SM as a
Desktop Switch
19
The example in Figure 5 shows how a Switch 3300 SM can be used,
within a stack, for a group of users that require dedicated 10Mbps or
100Mbps connections to the desktop. The 3300 SM Switches provide a
Gigabit Ethernet connection to a SuperStack II Switch 9300 in the
basement and to a local server.
Figure 5 Using the Switch in a desktop environment
Switch 3300:
SM
SM
XM
Local server on a switched
1000Mbps connection
MM
Endstations on switched 10Mbps
or 100Mbps connections
1000Mbps
Switch 9300
20
CHAPTER 1: INTRODUCING THE SWITCH 3300 SM
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
Configuration Rules with Full Duplex
21
The key topology rules are:
Configuration Rules
with Full Duplex
■
Maximum UTP cable length is 100m (328ft) over Category 5 cable.
■
A 412m (1352ft) fiber run is allowed for connecting switch-to-switch,
or endstation-to-switch, using half-duplex 100BASE-FX.
■
A total network span of 325m (1066ft) is allowed in single-repeater
topologies (one hub stack per wiring closet with a fiber run to the
collapsed backbone). For example, a 225m (738ft) fiber link from a
repeater to a router or switch, plus a 100m (328ft) UTP link from a
repeater out to the endstations.
The Switch provides full duplex support for all its ports. Full duplex allows
packets to be transmitted and received simultaneously and, in effect,
doubles the potential throughput of a link.
With full duplex, the Ethernet topology rules are the same, but the Fast
Ethernet rules are:
■
Maximum UTP cable length is 100m (328ft) over Category 5 cable.
■
A 2km (6562ft) fiber link is allowed for connecting switch-to-switch,
or endstation-to-switch.
22
CHAPTER 1: INTRODUCING THE SWITCH 3300 SM
Configuration Rules
for Gigabit
Ethernet
Gigabit Ethernet is designed to run over four media:
■
Single-mode fiber optic cable, with connections up to 5km.
■
Multimode fiber optic cable, with connections up to 550m.
■
Balanced, shielded copper cabling, with connections up to 25m.
■
Category 5 cabling, with connections up to 100m.
Table 4 Gigabit Ethernet cabling
Fiber Type
Modal
Bandwidth
(MHz/km)
Lengths Supported
Specified by IEEE
(meters)
1000BASE-LX
62.5 µm MM
50 µm MM
50 µm MM
10 µm SM
500
400
500
N/A
2–550
2–550
2–550
2–5000
1000BASE-SX
62.5 µm MM
62.5 µm MM
50 µm MM
50 µm MM
160
120
400
500
2–220
2–275
2–500
2–550
1000BASE-CX
N/A
N/A
25
1000BASE-T
N/A
N/A
100
MM = Multimode
SM = Single-mode
Gigabit Ethernet
Transceivers
Configuration Rules
for the 3300 SM
The Switch has a Gigabit Ethernet fiber optic 1000BASE-SX port that
provides a 1000Mbps full duplex connection to another Gigabit Ethernet
device. Full duplex allows packets to be transmitted and received
simultaneously and, in effect, doubles the potential throughput of a link.
For the SuperStack 3 Switch 3300 SM:
■
Use Multimode fiber optic cable (see Table 4 for details).
■
The 1000BASE-SX port is permanently fixed at 1000Mbps with full
duplex.
2
INSTALLING THE SWITCH
This chapter contains the information you need to install and set up the
Switch. It covers the following topics:
■
Choosing a Suitable Site
■
Rack-mounting
■
Placing Units On Top of Each Other
■
Stacking Units
■
The Power-up Sequence
■
Choosing the Correct Cables
■
Solving Problems Indicated by LEDs
■
Managing the Switch
WARNING: Safety Information. Before installing or removing any
components from the Switch 3300 SM 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 3300 SM ou d'entamer une procédure de
maintenance, lisez les informations relatives à la sécurité qui se trouvent
dans l'Appendice A de ce guide.
WARNHINWEIS: Sicherheitsinformationen. Bevor Sie Komponenten
aus dem Switch 3300 SM entfernen oder dem Switch 3300 SM
hinzufuegen oder Instandhaltungsarbeiten verrichten, lesen Sie die
Sicherheitsanweisungen, die in Appendix A (Anhang A) in diesem
Handbuch aufgefuehrt sind.
24
CHAPTER 2: INSTALLING THE SWITCH
Choosing a Suitable
Site
The Switch is suited for use in an office environment where it can be
mounted in a standard 19-inch equipment rack, or free standing.
Alternatively, the Switch can be rack-mounted in a wiring closet or
equipment room. A rack-mounting kit, containing two mounting
brackets and four screws, is supplied with the Switch.
When deciding where to position the Switch, ensure that:
■
You are able to meet the configuration rules detailed in
“Configuration Rules for Fast Ethernet” on page 20.
■
The Switch is accessible and cables can be connected easily.
■
Cabling is away from:
■
■
Rack-mounting
Sources of electrical noise such as radios, transmitters and
broadband amplifiers
Power lines and fluorescent lighting fixtures
■
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. We recommend that you provide a minimum of
25mm (1in.) clearance.
■
No more than four Switch units are placed on top of one another, if
the units are free standing.
■
If used in an office environment, the switch is positioned so that any
noise from the fan is not disruptive.
The Switch is 1U high and fits in most standard 19-inch racks.
CAUTION: Disconnect all cables from the Switch before continuing.
Remove all self adhesive pads from the underside of the Switch if they
have been fitted.
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
Switch, as shown in Figure 7.
Placing Units On Top of Each Other
25
Figure 7 Fitting a bracket for rack mounting
3 Insert the two screws and tighten with a suitable screwdriver.
You must use the screws supplied with the mounting brackets. Damage
caused to the unit by using incorrect screws invalidates your warranty.
4 Repeat steps 2 and 3 for the other side of the Switch.
5 Insert the Switch into the 19-inch rack and secure with suitable screws
(not provided). Ensure that ventilation holes are not obstructed.
6 Connect network cabling.
Placing Units On
Top of Each Other
If the Switch units are free-standing, up to four units can be placed one
on top of the other. If you are mixing a variety of SuperStack Switch and
Hub units, 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 pads supplied. Apply the pads 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 pads of the upper
unit line up with the recesses of the lower unit.
26
CHAPTER 2: INSTALLING THE SWITCH
Stacking Units
Units in the Switch 1100/3300 family can be stacked together and then
treated as a single manageable unit with one IP address.
The Matrix Port on the rear of the Switch allows you to connect two
Switch units back-to-back. For this you need a Matrix Cable (part number
3C16965). Contact your supplier for details.
The Switches in a stack are numbered 1 to 4, from the bottom up, for
management purposes. The SuperStack 3 Switch 3300 MM will always
be identified as Unit 1 and should therefore be positioned at the bottom
of the stack.
Stacking Two Units
You can stack two Switch units with a single Matrix Cable. To do this:
1 Power-off both units.
2 Arrange the units as required. They can be rack-mounted or
free-standing; if you choose to have them free-standing, remember to
position the rubber feet as detailed in “Placing Units On Top of Each
Other” on page 25. When positioning the units, note that Matrix Cables
are 1m (3.28ft) long.
3 Connect one end of the Matrix Cable to the Matrix Port of the top
Switch, and the other end to the Matrix Port of the lower Switch (See
Figure 8).
4 If you use the management software of the units:
■
Ensure that both units have the same version of management
software
■
Ensure that you re-configure the stack-wide features on both units
For more information about management software, see “Managing the
Switch” on page 32.
Stacking Units
27
Figure 8 A stack of two units
Stacking Up To Four
Units
You can stack up to four Switch units using a Switch 3300 MM and the
appropriate number of Matrix Cables.
You need only one SuperStack 3 Switch 3300 MM per stack.
To stack up to four Switch units:
1 Power-off all the units.
2 Arrange the units as required. They can be rack-mounted or
free-standing; if you choose to have them free-standing, remember to
position the rubber feet as detailed in “Placing Units On Top of Each
Other” on page 25. When positioning the units, note that Matrix Cables
are 1m (3.28ft) long.
3 Connect the Matrix Cables, as shown in Figure 9:
a Connect a Matrix Cable to the port marked Unit 2 on the
Switch 3300 MM. Connect the other end of this cable to the Matrix
Port on the Switch placed immediately above the Switch 3300 MM.
b Connect a second Matrix Cable to the port marked Unit 3 on the
Switch 3300 MM. Connect the other end of this cable to the Matrix
Port on the next Switch up.
c Connect a third Matrix Cable to the port marked Unit 4 on the
Switch 3300 MM. Connect the other end of this cable to the Matrix
Port on the Switch at the top of the stack.
28
CHAPTER 2: INSTALLING THE SWITCH
4 If you use the management software of the units:
■
Ensure that all the units have the same version of management
software
■
Ensure that you re-configure the stack-wide features on all the units
For more information about management software, see “Managing the
Switch” on page 32.
Figure 9 A stack of three units
Switch 1100/3300
Switch 3300 SM
Switch 3300 MM
The Power-up Sequence
The Power-up
Sequence
Connecting a
Redundant Power
System
29
The following sections describe how to get your Switch 3300 SM
powered-up and ready for operation.
You can connect a SuperStack Advanced Redundant Power System (part
number 3C16071B) to the Switch. This unit, which is also known as an
ARPS, is designed to maintain the power to your Switch if a power supply
failure occurs.
For normal redundancy, the unit requires one Type 2A Power Module. For
full redundancy, the unit requires two Type 2A Power Modules combined
using a Type 2 Y-Cable.
Check with your supplier that you have the correct Power Modules and
cables for your ARPS unit.
CAUTION: The Switch can only use a SuperStack Advanced Redundant
Power System output.
Powering-up the
Switch 3300 SM
Use the following sequence of steps to power-up the Switch.
CAUTION: The Switch has no ON/OFF switch; the only method of
connecting or disconnecting main power is by connecting or
disconnecting the power cord.
1 Plug the power cord into the power socket at the rear of the Switch.
2 Plug the other end of the power cord into your power outlet
The Switch powers-up and runs through its Power On Self Test (POST),
which takes approximately 12 seconds.
Checking for Correct
Operation
During the Power On Self Test, all ports on the Switch are disabled and
the LEDs light in the following sequence:
■
All unit LEDs light
■
Port Status LEDs light in a rapid cycle
When the POST has completed, check the Power/Self Test LED to check
that your Switch is operating correctly. Table 5 shows possible colors for
the LED.
30
CHAPTER 2: INSTALLING THE SWITCH
Table 5 LED colors
Color
State
Green
The Switch is powered-up and
operating normally
Yellow
The Switch has failed its Power On Self
Test. This occurs if any of the ports fail
during power-up.
Off
The Switch is not receiving power.
If there is evidence of a problem, see “Solving Problems Indicated by
LEDs” on page 31.
Choosing the
Correct Cables
All of the ports on the front of the Switch 3300 SM are configured as
MDIX (cross-over). If you want to make a connection to another MDIX
port, you need a cross-over cable. Most of the 10BASE-T and
100BASE-TX ports on 3Com devices are MDIX-only. 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. This is illustrated in Figure 10.
Figure 10 Connecting other devices to the Switch 3300 SM
Solving Problems Indicated by LEDs
Solving Problems
Indicated by LEDs
31
If the LEDs on the Switch indicate a problem, refer to Table 6 which
contains a list of problems and suggested solutions.
Table 6 Problems indicated by LEDs
Problem
Suggested Solution
A Power LED does not
light
Check that the power cable is firmly connected to the
relevant Switch unit and to the supply outlet. If the
connection is secure and there is still no power, you may
have a faulty power cord.
On powering-up, the
Power/Self Test LED
lights yellow and a
Unit LED lights green
The relevant Switch unit has failed its Power On Self Test
(POST) because of an internal problem. Contact your
supplier for advice.
A link is connected and Check that:
yet the Status LED for
All connections are secure.
■
the port does not light
The devices at both ends of the link are powered-up.
■
■
The connection uses cross-over cable if you are
linking a 10BASE-T or 100BASE-TX port with a device
that is MDIX-only.
For information about solving problems when managing the Switch, refer
to the Problem Solving chapter in the “SuperStack Switch Management
Guide”.
32
CHAPTER 2: INSTALLING THE SWITCH
Managing the
Switch
The Switch contains software that allows you to change and monitor the
way it works. This management software is not required to get the
Switch working, but if you do use it, you may improve the efficiency of
the Switch and therefore improve the overall performance of your
network. For information on managing the Switch using the
management software, refer to the “SuperStack Switch Management
Guide”.
A
SAFETY INFORMATION
You must read the following safety information before carrying out any
installation or removal of components, or any maintenance procedures
on the Switch 3300 SM.
WARNING: Warnings contain directions that you must follow for your
personal safety. Follow all directions carefully.
You must read the following safety information carefully before you
install or remove the unit.
AVERTISSEMENT: Les avertissements présentent des consignes que vous
devez respecter pour garantir votre sécurité personnelle. Vous devez
respecter attentivement toutes les consignes.
Nous vous demandons de lire attentivement les consignes suivantes de
sécurité avant d’installer ou de retirer l’appareil.
WARNHINWEIS: Warnhinweise enthalten Anweisungen, die Sie zu Ihrer
eigenen Sicherheit befolgen müssen. Alle Anweisungen sind sorgfältig zu
befolgen.
Sie müssen die folgenden Sicherheitsinformationen’ sorgfältig
durchlesen, bevor Sie das Gerät installieren oder ausbauen.
34
APPENDIX A: SAFETY INFORMATION
Important Safety
Information
■
Installation and removal of the unit must be carried out by qualified
personnel only.
■
If installing the Switch unit in a stack with SuperStack Hub units, the
Switch 3300 SM unit must be installed below the Hub units.
■
The unit should never be connected to an A.C. outlet (power supply)
without an earth (ground) connection.
■
The unit must be connected to an earthed (grounded) outlet to
comply with European safety standards.
■
Power Cord Set:
This must be approved for the country where it is used:
U.S.A. and
Canada
■
The cord set must be UL-approved and CSA certified.
■
The minimum specification for the flexible cord is:
No. 18 AWG
Type SV or SJ
3-conductor
■
The cord set must have a rated current capacity of at least
10A.
■
The attachment plug must be an earth-grounding type
with a NEMA 5-15P (15A, 125V) or NEMA 6-15P (15A,
250V) configuration.
Denmark
■
The supply plug must comply with section 107-2-D1,
standard DK2-1a or DK2-5a.
Switzerland
■
The supply plug must comply with SEV/ASE 1011.
■
The appliance coupler (the connector to the unit and not the wall
plug) must have a configuration for mating with an EN60320/IEC320
appliance inlet.
■
The socket outlet must be near to the unit and easily accessible. You
can only remove power from the unit by disconnecting the power
cord from the outlet.
■
This unit operates under SELV (Safety Extra Low Voltage) conditions
according to IEC 950. The conditions are only maintained if the
equipment to which it is connected also operates under SELV
conditions.
■
Switzerland only:
The supply plug must comply with SEV/ASE 1011.
Important Safety Information
35
■
France and Peru only:
This unit cannot be powered from IT† supplies. If your supplies are of
IT type, this unit must be powered by 230V (2P+T) via an isolation
transformer ratio 1:1, with the secondary connection point labelled
Neutral, connected directly to earth (ground).
†Impédance à la terre.
■
U.K. only:
The Switch 3300 SM is covered by Oftel General Approval,
NS/G/12345/J/100003, for indirect connection to a public
telecommunications system. This can only be achieved using the
console port on the unit and an approved modem.
■
Sockets for Redundant Power System (RPS):
Only connect an Advanced Redundant Power System (3C16071B)
with Type 2A Power Modules and Type 2 cables to the Redundant
Power System socket.
WARNING: RJ-45 Ports. These are shielded RJ-45 data sockets. They
cannot be used as telephone sockets. Only connect RJ-45 data
connectors to these sockets.
Either shielded or unshielded data cables with shielded or unshielded
jacks can be connected to these data sockets.
WARNING: Fiber Optic ports - Optical Safety.
Never look at the transmit laser through a magnifying device while it is
powered on. Never look directly at the fiber port and fiber cable ends
when they are powered on.
36
APPENDIX A: SAFETY INFORMATION
L’information de
Sécurité Importante
■
L'installation et la dépose de ce groupe doivent être confiés à un
personnel qualifié.
■
Si vous entassez l'unité Switch avec les unités SuperStack Hub, l'unité
Switch 3300 SM doit être installée en dessous des unités Hub plus
étroites.
■
L’unité ne devrait pas etre branchee a une prise de courant C.A.
(source de courant) sous aucun prétexte sans un branchement mise à
la terre (mise à la masse).
■
Vous devez raccorder ce groupe à une sortie mise à la terre (mise à la
masse) afin de respecter les normes européennes de sécurité.
■
Cordon électrique:
Il doit être agréé dans le pays d'utilisation:
Etats-Unis et
Canada
■
Le cordon doit avoir reçu l'homologation des UL et un
certificat de la CSA
■
Le cordon souple doit respecter, à titre minimum, les
spécifications suivantes :
■
calibre 18 AWG
■
type SV ou 5J
■
à 3 conducteurs
■
Le cordon doit être en mesure d'acheminer un courant
nominal d'au moins 10 A
■
La prise femelle de branchement doit être du type à mise à la
terre (mise à la masse) et respecter la configuration NEMA
5-15P (15 A, 125 V) ou NEMA 6-15P (15 A, 250 V)
Danemark
■
La prise mâle d'alimentation doit respecter la section 107-2
D1 de la norme DK2 1a ou DK2 5a
Suisse
■
La prise mâle d'alimentation doit respecter la norme SEV/ASE
1011
■
Le coupleur d'appareil (le connecteur du groupe et non pas la prise
murale) doit respecter une configuration qui permet un branchement
sur une entrée d'appareil EN60320/CEI 320.
■
La prise secteur doit se trouver à proximité de l’appareil et son accès
doit être facile. Vous ne pouvez mettre l’appareil hors circuit qu'en
débranchant son cordon électrique au niveau de cette prise.
L’information de Sécurité Importante
37
■
L’appareil fonctionne à une tension extrêmement basse de sécurité
qui est conforme à la norme CEI 950. Ces conditions ne sont
maintenues que si l'équipement auquel il est raccordé fonctionne
dans les mêmes conditions.
■
France et Pérou uniquement:
Ce groupe ne peut pas être alimenté par un dispositif à impédance
à la terre. Si vos alimentations sont du type impédance à la terre, ce
groupe doit être alimenté par une tension de 230 V (2 P+T) par le
biais d'un transformateur d'isolement à rapport 1:1, avec un point
secondaire de connexion portant l'appellation Neutre et avec
raccordement direct à la terre (masse).
■
Branchez uniquement un Advanced Redundant Power System
(3C16071B) avec Type 2A Power Modules et Type 2 câbles sur la
prise femelle du Redundant Power System.
AVERTISSEMENT: Les ports RJ-45. Il s'agit de prises femelles blindées
de données RJ-45. Vous ne pouvez pas les utiliser comme prise de
téléphone. Branchez uniquement des connecteurs de données RJ-45 sur
ces prises femelles.
Les câbles de données blindés ou non blindés, avec les jacks blindés ou
non blindés, l'un ou l'autre, peuvent être branchés à ces prises de courant
de données.
AVERTISSEMENT: Ports pour fibres optiques - sécurité sur le plan
optique.
Ne regardez jamais le laser d'émission en utilisant un dispositif
d'agrandissement, tant qu'il est sous tension. Ne regardez jamais
directement le port à fibres optiques et les embouts de câbles à fibres
optiques tant qu'ils sont sous tension.
38
APPENDIX A: SAFETY INFORMATION
Wichtige
Sicherheitsinformat
ionen
■
Die Installation und der Ausbau des Geräts darf nur durch
Fachpersonal erfolgen.
■
Wenn die Switch 3300 SM Einheit in einer Stapel mit anderen
SuperStack Hub Einheiten eingebaut werden soll, muß die Switch
3300 SM Einheit unter die schmaleren Hub Einheiten eingebaut
werden.
■
Das Gerät ist unter keinen umständen an einen Wechselstrom (A.C.)
Netzstecker anzuschließen ohne erdungsleitung.
■
Das Gerät muß an eine geerdete Steckdose angeschlossen werden,
die die europäischen Sicherheitsnormen erfüllt.
■
Der Anschlußkabelsatz muß mit den Bestimmungen des Landes
übereinstimmen, in dem er verwendet werden soll.
■
Der Gerätestecker (der Anschluß an das Gerät, nicht der
Wandsteckdosenstecker) muß eine passende Konfiguration für einen
Geräteeingang gemäß EN60320/IEC320 haben.
■
Die Netzsteckdose muß in der Nähe des Geräts und leicht zugänglich
sein. Die Stromversorgung des Geräts kann nur durch Herausziehen
des Gerätenetzkabels aus der Netzsteckdose unterbrochen werden.
■
Der Betrieb dieses Geräts erfolgt unter den SELV-Bedingungen
(Sicherheitskleinstspannung) gemäß IEC 950. Diese Bedingungen sind
nur gegeben, wenn auch die an das Gerät angeschlossenen Geräte
unter SELV-Bedingungen betrieben werden.
■
Nur ein Advanced Redundant Power System (3C16071B) mit Type 2A
Power Modules und Type 2 kabel an den Redundant Power System
Anschluß anschließen.
WARNHINWEIS: RJ-45 Ports. RJ-45-Anschlüsse. Dies sind
abgeschirmte RJ-45-Datenbuchsen. Sie können nicht als
Telefonanschlußbuchsen verwendet werden. An diesen Buchsen dürfen
nur RJ-45-Datenstecker angeschlossen werden.
Diese Datenstecker können entweder mit abgeschirmten oder
unabgeschirmten Datenkabeln mit abgeschirmten oder unabgeschirmten
Klinkensteckern verbunden werden.
Wichtige Sicherheitsinformationen
39
WARNHINWEIS: Faseroptikanschlüsse - Optische Sicherheit.
Niemals mit einem Vergrößerungsgerät einen Übertragungs-Laser
betrachten, während dieser eingeschaltet ist. Niemals direkt auf den Faser
Anschluß und auf die Faserkabelenden schauen, während diese
eingeschaltet sind.
40
APPENDIX A: SAFETY INFORMATION
B
Null Modem Cable
PIN-OUTS
9-pin to RS-232 25-pin
Switch 3300 SM
Cable connector: 9-pin female
PC-AT Serial Cable
PC/Terminal
Cable connector: 25-pin male/female
Screen
TxD
RxD
Ground
RTS
CTS
Shell
3
2
5
7
8
1
3
2
7
4
20
Screen
RxD
TxD
Ground
RTS
DTR
DSR
DCD
DTR
6
1
4
5
6
8
CTS
DSR
DCD
only required if screen
always required
required for handshake
9-pin to 9-pin
Switch 3300 SM
Cable connector: 9-pin female
PC-AT Serial Port
Cable connector: 9-pin female
Screen
DTR
TxD
RxD
CTS
Ground
Shell
4
3
2
8
5
Shell
1
2
3
4
5
DSR
RTS
DCD
6
7
1
6
7
8
Screen
DCD
RxD
TxD
DTR
Ground
DSR
RTS
CTS
only required if screen
always required
required for handshake
always required
required for handshake
42
APPENDIX B: PIN-OUTS
Modem Cable
9-pin to RS-232 25-pin
Switch 3300 SM
Cable connector: 9-pin female
RJ45 Pin
Assignments
Screen
TxD
RxD
RTS
CTS
DSR
Shell
3
2
7
8
6
Ground
DCD
DTR
5
1
4
RS-232 Modem Port
Cable connector: 25-pin male
1
2
3
4
5
6
7
8
20
Screen
TxD
RxD
RTS
CTS
DSR
Ground
DCD
DTR
Pin assignments are identical for 10BASE-T and 100BASE-TX RJ45
connectors
Table 7 Pin assignments
Pin Number
Signal
Function
1
TxData +
Transmit data
2
TxData –
Transmit data
3
RxData +
Receive Data
4
Not assigned
5
Not assigned
6
RxData –
7
Not assigned
8
Not assigned
Ports configured as MDI
Receive data
RJ45 Pin Assignments
Table 7 Pin assignments
Pin Number
Signal
Function
Ports configured as MDIX
1
RxData +
Receive Data
2
RxData –
Receive Data
3
TxData +
Transmit data
4
Not assigned
5
Not assigned
6
TxData –
7
Not assigned
8
Not assigned
Transmit data
43
44
APPENDIX B: PIN-OUTS
C
TECHNICAL SPECIFICATIONS
Physical Dimensions
Height: 43.6mm x Width: 440mm x Depth: 247.5mm
Weight: 5kg (11lbs)
Environmental Requirements
Operating Temperature
0° to 50°C (32° to 122°F)
Storage Temperature
–10° to +70°C (14° to 158°F)
Operating Humidity
10–95% relative humidity, non-condensing
Standards
EN60068 (IEC68) — various parts
Safety
Agency Certifications
UL 1950, EN60950, CSA 22.2 No. 950, IEC 60950, EN60825-1
EMC
Emissions
EN55022 Class A, FCC Part 15 subpart B Class A, ICES-003 Class A,
VCCI Class A, AS/NZS 3548 Class A, CNS 13438 Class A
Immunity
EN50082-1
Heat Dissipation
75 watts maximum
Power Supply
AC Line Frequency
50/60Hz
Input Voltage Options
90–240 VAC
Current Rating
3amps (maximum)
(continued)
46
APPENDIX C: TECHNICAL SPECIFICATIONS
Standards Supported
SNMP
Terminal Emulation
SNMP protocol (RFC 1157)
Telnet (RFC 854)
MIB-II (RFC 1213)
Protocols Used for Administration
Bridge MIB (RFC 1493)
UDP (RFC 768)
Repeater MIB (RFC 1516)
IP (RFC 791)
VLAN MIB (RFC 1573)
ICMP (RFC 792)
RMON MIB (RFC 1271)
TCP (RFC 793)
BOOTP (RFC 951)
ARP (RFC 826)
TFTP (RFC 783)
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
D
TECHNICAL SUPPORT
3Com provides easy access to technical support information through a
variety of services. This appendix describes these services.
Information contained in this appendix is correct at time of publication. For
the most recent information, 3Com recommends that you access the
3Com Corporation World Wide Web site.
Online Technical
Services
World Wide Web Site
3Com offers worldwide product support 24 hours a day, 7 days a week,
through the following online systems:
■
World Wide Web site
■
3Com Knowledgebase Web Services
■
3Com FTP site
To access the latest networking information on the 3Com Corporation
World Wide Web site, enter this URL into your Internet browser:
http://www.3com.com/
This service provides access to online support information such as technical
documentation and software, as well as support options that range from
technical education to maintenance and professional services.
3Com
Knowledgebase Web
Services
This interactive tool contains technical product information compiled by
3Com expert technical engineers around the globe. Located on the World
Wide Web at http://knowledgebase.3com.com, this service gives all
3Com customers and partners complementary, round-the-clock access to
technical information on most 3Com products.
48
APPENDIX D: TECHNICAL SUPPORT
3Com FTP Site
Download drivers, patches, software, and MIBs across the Internet from the
3Com public FTP site. This service is available 24 hours a day, 7 days a week.
To connect to the 3Com FTP site, enter the following information into
your FTP client:
■
Hostname: ftp.3com.com
■
Username: anonymous
■
Password: <your Internet e-mail address>
You do not need a user name and password with Web browser software
such as Netscape Navigator and Internet Explorer.
Support from Your
Network Supplier
If you require additional assistance, contact your network supplier. Many
suppliers are authorized 3Com service partners who are qualified to
provide a variety of services, including network planning, installation,
hardware maintenance, application training, and support services.
When you contact your network supplier for assistance, have the
following information ready:
■
Product model name, part number, and serial number
■
A list of system hardware and software, including revision levels
■
Diagnostic error messages
■
Details about recent configuration changes, if applicable
If you are unable to contact your network supplier, see the following
section on how to contact 3Com.
Support from 3Com
If you are unable to obtain assistance from the 3Com online technical
resources or from your network supplier, 3Com offers technical telephone
support services. To find out more about your support options, call the
3Com technical telephone support phone number at the location nearest
you.
When you contact 3Com for assistance, have the following information
ready:
■
Product model name, part number, and serial number
■
A list of system hardware and software, including revision levels
Support from 3Com
■
Diagnostic error messages
■
Details about recent configuration changes, if applicable
49
Here is a list of worldwide technical telephone support numbers:
Country
Telephone Number
Country
Telephone Number
Asia, Pacific Rim
Australia
Hong Kong
India
Indonesia
Japan
Malaysia
New Zealand
Pakistan
Philippines
1 800 678 515
800 933 486
+61 2 9937 5085
001 800 61 009
0531 61 6439
1800 801 777
0800 446 398
+61 2 9937 5083
1235 61 266 2602
P.R. of China
10800 61 00137 or
021 6350 1590
800 6161 463
82 2 3455 6455
00798 611 2230
00798 611 2230
0080 611 261
001 800 611 2000
Singapore
S. Korea
From anywhere in S. Korea:
From Seoul:
Taiwan, R.O.C.
Thailand
Europe
From anywhere in Europe, call: +31 (0)30 6029900 phone
+31 (0)30 6054396 fax
Europe, South Africa, and Middle East
From the following countries, you may use the toll-free numbers:
Austria
Belgium
Denmark
Finland
France
Germany
Hungary
Ireland
Israel
Italy
Luxembourg
0800 297468
0800 71429
800 17309
0800 113153
0800 917959
0800 1821502
06800 12813
1800 553117
1800 9453794
1678 79489
0800 3625
Middle East
Netherlands
Norway
Poland
Portugal
Russia
South Africa
Spain
Sweden
Switzerland
U.K.
1800 945 3794
0800 0227788
800 11376
00800 3111206
0800 831416
0800 995014
0800 995014
900 983125
020 795482
0800 55 3072
0800 966197
Latin America
Argentina
Brazil
Colombia
5411 4510 3200
0800 13 3266
571 629 4827
Mexico
Puerto Rico
South America
01 800 CARE (01 800 2273)
800 666 5065
1800 666 5065
North America
1 800 NET 3Com
(1 800 638 3266)
Enterprise Customers:
1 800 876-3266
50
APPENDIX D: TECHNICAL SUPPORT
Returning Products
for Repair
Before you send a product directly to 3Com for repair, you must first
obtain an authorization number. Products sent to 3Com without
authorization numbers will be returned to the sender unopened, at the
sender’s expense.
To obtain an authorization number, call or fax:
Country
Telephone Number
Fax Number
Asia, Pacific Rim
+ 65 543 6500
+ 65 543 6348
Brazil
5511 523 2725
Europe, South Africa, and Middle East
+ 31 30 6029900
Central and South America
525 201 0075
+ 31 30 6029999
From the following countries, you may call the toll-free numbers; select option 2 and then option 2:
Austria
Belgium
Denmark
Finland
France
Germany
Hungary
Ireland
Israel
Italy
Netherlands
Norway
Poland
Portugal
South Africa
Spain
Sweden
Switzerland
U.K.
0800 297468
0800 71429
800 17309
0800 113153
0800 917959
0800 1821502
00800 12813
1800553117
1800 9453794
1678 79489
0800 0227788
800 11376
00800 3111206
0800 831416
0800 995014
900 983125
020 795482
0800 55 3072
0800 966197
U.S.A. and Canada
1 800 NET 3Com
(1 800 638 3266)
Enterprise Customers:
1 800 876 3266
1 408 326 7120
(not toll-free)
GLOSSARY
10BASE-T
The IEEE specification for 10Mbps Ethernet over Category 3, 4 or 5
twisted pair cable.
100BASE-FX
The IEEE specification for 100Mbps Fast Ethernet over fiber-optic cable.
100BASE-TX
The IEEE specification for 100Mbps Fast Ethernet over Category 5
twisted-pair cable.
1000BASE-SX
1000BASE-T
The IEEE specification for 1000Mbps Gigabit Ethernet over fiber-optic
cable.
The IEEE specification for 1000Mbps Gigabit Ethernet over Category 5
twisted-pair cable.
auto-negotiation
A feature on twisted pair ports that allows them to advertise their
capabilities for speed, duplex and flow control. When connected to a
port that also supports auto-negotiation, the link can automatically
configure itself to the optimum setup.
backbone
The part of a network used as a primary path for transporting traffic
between network segments.
bandwidth
The information capacity, measured in bits per second, that a channel
can transmit. The bandwidth of Ethernet is 10Mbps, the bandwidth of
Fast Ethernet is 100Mbps.
baud
The signalling rate of a line, that is, the number of transitions (voltage
or frequency changes) made per second. Also known as line speed.
bridge
A device that interconnects two LANs of a different type to form a
single logical network that comprises of two network segments.
Bridges learn which endstations are on which network segment by
examining the source addresses of packets. They then use this
52
GLOSSARY
information to forward packets based on their destination address. This
process is known as filtering.
broadcast
A packet sent to all devices on a network.
broadcast storm
Multiple simultaneous broadcasts that typically absorb all the available
network bandwidth and can cause a network to fail. Broadcast storms
can be due to faulty network devices.
collision
A term used to describe two colliding packets in an Ethernet network.
Collisions are a part of normal Ethernet operation, but a sudden
prolonged increase in the number of collisions can indicate a problem
with a device, particularly if it is not accompanied by a general increase
in traffic.
CSMA/CD
Carrier-sense Multiple Access with Collision Detection. The protocol
defined in Ethernet and IEEE 802.3 standards in which devices transmit
only after finding a data channel clear for a period of time. When two
devices transmit simultaneously, a collision occurs and the colliding
devices delay their retransmissions for a random length of time.
endstation
Ethernet
Ethernet address
Fast Ethernet
forwarding
filtering
flow control
A computer, printer or server that is connected to a network.
A LAN specification developed jointly by Xerox, Intel and Digital
Equipment Corporation. Ethernet networks use CSMA/CD to transmit
packets at a rate of 10Mbps over a variety of cables.
See MAC address.
An Ethernet system that is designed to operate at 100Mbps.
The process of sending a packet toward its destination using a
networking device.
The process of screening a packet for certain characteristics, such as
source address, destination address, or protocol. Filtering is used to
determine whether traffic is to be forwarded, and can also prevent
unauthorized access to a network or network devices.
A congestion control mechanism. Congestion is caused by devices
sending traffic to already overloaded port on a Switch. Flow control
prevents packet loss and inhibits devices from generating more traffic
until the period of congestion ends.
53
full duplex
A system that allows packets to be transmitted and received at the
same time and, in effect, doubles the potential throughput of a link.
half duplex
A system that allows packets to transmitted and received, but not at
the same time. Contrast with full duplex.
hub
A device that regenerates LAN traffic so that the transmission distance
of that signal can be extended. Hubs are similar to repeaters, in that
they connect LANs of the same type; however they connect more LANs
than a repeater and are generally more sophisticated.
IEEE
Institute of Electrical and Electronics Engineers. This American
organization was founded in 1963 and sets standards for computers
and communications.
IEEE 802.1D
IETF
IP
A standard that defines the behavior of bridges in an Ethernet network.
Internet Engineering Task Force. An organization responsible for
providing engineering solutions for TCP/IP networks. In the network
management area, this group is responsible for the development of the
SNMP protocol.
Internet Protocol. IP is a layer 3 network protocol that is the standard
for sending data through a network. IP is part of the TCP/IP set of
protocols that describe the routing of packets to addressed devices.
IPX
Internetwork Packet Exchange. IPX is a layer 3 and 4 network protocol
designed for networks that use Novell Netware.
IP address
Internet Protocol address. A unique identifier for a device attached to a
network using TCP/IP. The address is written as four octets separated
with periods (full-stops), and is made up of a network section, an
optional subnet section and a host section.
LAN
Local Area Network. A network of endstations (such as PCs, printers,
servers) and network devices (hubs and switches) that cover a relatively
small geographic area (usually not larger than a floor or building). LANs
are characterized by high transmission speeds over short distances (up
to 1000m).
line speed
See baud.
54
GLOSSARY
loop
An event that occurs when two network devices are connected by
more than one path, thereby causing packets to repeatedly cycle
around the network and not reach their destination.
MAC
Media Access Control. A protocol specified by the IEEE for determining
which devices have access to a network at any one time.
MAC address
Media Access Control address; also called hardware or physical address.
A layer 2 address associated with a particular network device. Most
devices that connect to a LAN have a MAC address assigned to them
as they are used to identify other devices in a network. MAC addresses
are 6 bytes long.
MDI
Medium Dependent Interface. An Ethernet port connection where the
transmitter of one device is connected to the receiver of another
device.
MDI-X
Medium Dependent Interface Cross-over. An Ethernet port connection
where the internal transmit and receive lines are crossed.
multicast
NIC
POST
A packet sent to a specific group of endstations on a network.
Network Interface Card. A circuit board installed in an endstation that
allows it to be connected to a network.
Power On Self Test. An internal test that a Switch carries out when it is
powered-up.
protocol
A set of rules for communication between devices on a network. The
rules dictate format, timing, sequencing and error control.
repeater
A simple device that regenerates LAN traffic so that the transmission
distance of that signal can be extended. Repeaters are used to connect
two LANs of the same network type.
router
RPS
segment
A device that provides WAN links between geographically separate
networks.
Redundant Power System. A device that provides a backup source of
power when connected to a Switch.
A section of a LAN that is connected to the rest of the network using a
switch or bridge.
55
server
SLIP
SNMP
stack
STP
A computer in a network that is shared by multiple endstations. Servers
provide endstations with access to shared network services such as
computer files and printer queues.
Serial Line Internet Protocol. A protocol that allows IP to run over a
serial line (console port) connection.
Simple Network Management Protocol. The current IETF standard
protocol for managing devices on an TCP/IP network.
A group of network devices that are integrated to form a single logical
device.
See Spanning Tree Protocol (STP).
SuperStack
In this guide, the generic term SuperStack refers to any SuperStack II
and SuperStack 3 device. SuperStack II and SuperStack 3 devices can be
connected together to form a SuperStack system.
switch
A device that interconnects several LANs to form a single logical LAN
that comprises of several LAN segments. Switches are similar to bridges,
in that they connect LANs of a different type; however they connect
more LANs than a bridge and are generally more sophisticated.
Switch Database
TCP/IP
A database that is stored by a switch to determine if a packet should
be forwarded, and which port should forward the packet if it is to be
forwarded.
Transmission Control Protocol/Internet Protocol. This is the name for
two of the most well-known protocols developed for the
interconnection of networks. Originally a UNIX standard, TCP/IP is now
supported on almost all platforms, and is the protocol of the Internet.
TCP relates to the content of the data travelling through a network —
ensuring that the information sent arrives in one piece when it reaches
its destination. IP relates to the address of the endstation to which data
is being sent, as well as the address of the destination network.
Telnet
A TCP/IP application protocol that provides a virtual terminal service,
letting a user log into another computer system and access a device as
if the user were connected directly to the device.
TFTP
Trivial File Transfer Protocol. Allows you to transfer files (such as
software upgrades) from a remote device using the local management
capabilities of the Switch.
56
GLOSSARY
unicast
WAN
A packet sent to a single endstation on a network.
Wide Area Network. A communications network that covers a wide
area. A WAN can cover a large geographic area, and may contain
several LANs within it.
INDEX
Numbers
I
1000BASE-SX 13
10BASE-T/100BASE-TX ports 13
3C number 15
3Com Knowledgebase Web Services 47
3Com URL 47
installing the Switch 23
prerequisites 24
A
auto-negotiating ports 13
C
cable
choosing the correct 30
Matrix 16
maximum length 13, 21, 22
pin-outs 41
console port 16
conventions
notice icons, About This Guide 8
text, About This Guide 8
cross-over configuration 13, 30
E
Ethernet address of the Switch 15
L
LEDs 13
Light Emitting Diodes. See LEDs
M
MAC address of the Switch 15
management software 32
managing the Switch 32
Matrix Cable 16
matrix port 16
MDI configuration 30
MDIX configuration 13, 30
MIBs 48
N
network configuration examples 17
network supplier support 48
O
online technical services 47
F
Fast Ethernet configuration rules 20
full duplex configuration rules 21
G
Gigabit Ethernet configuration rules 22
glossary 51
H
hardware features 12
P
pin assignments
modem cable 42
null modem cable 41
RJ45 42
serial cable 41
pin-outs 41
ports
10BASE-T/100BASE-TX 13
auto-negotiating 13
console 16
matrix 16
power socket 15
58
INDEX
powering-up a Switch 3300 SM 29
product name 15
R
rack mounting a Switch 3300 SM 24
Redundant Power System. See RPS
returning products for repair 50
RPS 15
connecting 29
socket 15
S
safety information
English 34
French 36
German 38
segment, maximum length 13, 21
serial number of the Switch 15
serial port. See console port
socket
power 15
RPS 15
specifications, system 45
stacking a Switch 3300 SM 26
standards supported 46
straight-through configuration 30
Switch 3300 SM
10BASE-T/100BASE-TX ports 13
3C number 15
console port 16
dimensions 45
Ethernet address 15
features 12
installation 23, 24
MAC address 15
power socket 15
powering-up 29
product name 15
rack mounting 24
rear view 15
RPS socket 15
serial number 15
size 45
stacking 26
standards supported 46
unit information label 15
weight 45
system specifications 45
T
technical support
3Com Knowledgebase Web Services 47
3Com URL 47
network suppliers 48
product repair 50
topology rules for Fast Ethernet 20
topology rules with full duplex 21
U
unit information label 15
URL 47
W
World Wide Web (WWW) 47
Y
Year 2000 compliance 46
3Com Corporation LIMITED WARRANTY
This warranty applies to customers located in the United States, Australia, Canada (except Quebec), Ireland, New Zealand, U.K., and other English
language countries, and countries for which a translation into the local language is not provided.
SUPERSTACK® 3 SWITCH 3300 SM
HARDWARE:
3Com warrants to the end user ("Customer") that this hardware product will be free from defects in
workmanship and materials, under normal use and service, for the following length of time from the date of
purchase from 3Com or its authorized reseller:
Lifetime, for as long as the original Customer owns the product (not transferable to a subsequent end user)
3Com's sole obligation under this express warranty shall be, at 3Com's option and expense, to repair the
defective product or part, deliver to Customer an equivalent product or part to replace the defective item, or
if neither of the two foregoing options is reasonably available, 3Com may, in its sole discretion, refund to
Customer the purchase price paid for the defective product. All products that are replaced will become the
property of 3Com. Replacement products or parts may be new or reconditioned. 3Com warrants any
replaced or repaired product or part for ninety (90) days from shipment, or the remainder of the initial
SOFTWARE:
3Com warrants to Customer that each software program licensed from it, except as noted below, will
perform in substantial conformance to its program specifications, for a period of ninety (90) days from the
date of purchase from 3Com or its authorized reseller. 3Com warrants the media containing software
against failure during the warranty period. No updates are provided, unless specifically included in the
Included Services section. 3Com's sole obligation under this express warranty shall be, at 3Com's option and
expense, to refund the purchase price paid by Customer for any defective software product, or to replace any
defective media with software which substantially conforms to applicable 3Com published specifications.
Customer assumes responsibility for the selection of the appropriate applications program and associated
reference materials. 3Com makes no warranty or representation that its software products will meet
Customer's requirements or work in combination with any hardware or applications software products
provided by third parties, that the operation of the software products will be uninterrupted or error free, or
that all defects in the software products will be corrected. For any third party products listed in the 3Com
software product documentation or specifications as being compatible, 3Com will make reasonable efforts to
provide compatibility, except where the non-compatibility is caused by a "bug" or defect in the third party's
product or from use of the software product not in accordance with 3Com's published specifications or user
manual.
THIS 3COM PRODUCT MAY INCLUDE OR BE BUNDLED WITH (1) THIRD PARTY SOFTWARE, OR (2) 3COM
SOFTWARE THAT IS LICENSED "AS IS", THE USE OF WHICH IS GOVERNED BY A SEPARATE END USER
LICENSE AGREEMENT. THIS 3COM WARRANTY DOES NOT APPLY TO SUCH THIRD PARTY SOFTWARE OR
3COM SOFTWARE LICENSED "AS IS". FOR THE APPLICABLE WARRANTY, PLEASE REFER TO THE END USER
LICENSE AGREEMENT GOVERNING THE USE OF SUCH SOFTWARE OR THE ACCOMPANYING
DOCUMENTATION RELATING TO SUCH SOFTWARE.
YEAR 2000 WARRANTY:
In addition to the Hardware Warranty and Software Warranty stated above, 3Com warrants that each
product sold or licensed to Customer on and after January 1, 1998 that is date sensitive will continue
performing properly with regard to such date data on and after January 1, 2000, provided that all other
products used by Customer in connection or combination with the 3Com product, including hardware,
software, and firmware, accurately exchange date data with the 3Com product, with the exception of those
products identified at 3Com's Web site, http://www.3com.com/products/yr2000.html, as not meeting this
standard. If it appears that any product that is stated to meet this standard does not perform properly with
regard to such date data on and after January 1, 2000, and Customer notifies 3Com within ninety (90) days
after purchase of the product from 3Com or its authorized reseller, 3Com shall, at its option and expense,
provide a software update which would effect the proper performance of such product, repair such product,
deliver to Customer an equivalent product to replace such product, or if none of the foregoing is feasible,
refund to Customer the purchase price paid for such product.
Any software update or replaced or repaired product will carry a Year 2000 Warranty for ninety (90) days
after purchase.
OBTAINING WARRANTY
SERVICE:
Customer must contact a 3Com Corporate Service Center or an Authorized 3Com Service Center within the
applicable warranty period to obtain warranty service authorization. Dated proof of purchase from 3Com or
its authorized reseller may be required. Products returned to 3Com's Corporate Service Center must be
pre-authorized by 3Com with a User Service Order (USO) number (or a Return Material Authorization (RMA)
number or a Service Repair Order (SRO) number, whichever was issued) marked on the outside of the
package, and sent prepaid and packaged appropriately for safe shipment, and it is recommended that they
be insured or sent by a method that provides for tracking of the package. Responsibility for loss or damage
does not transfer to 3Com until the returned item is received by 3Com. The repaired or replaced item will be
shipped to Customer, at 3Com's expense, not later than thirty (30) days after 3Com receives the defective
product, and 3Com will retain risk of loss or damage until the item is delivered to Customer.
3Com shall not be responsible for any software, firmware, information, or memory data of Customer
contained in, stored on, or integrated with any products returned to 3Com for repair, whether under
warranty or not.
Dead- or Defective-on-Arrival. In the event a product completely fails to function or exhibits a defect in
materials or workmanship within the first forty-eight (48) hours of installation but no later than thirty (30)
days after the date of purchase, and this is verified by 3Com, it will be considered dead- or
defective-on-arrival (DOA) and a replacement shall be provided prior to 3Com receiving the defective
product, but only if Customer provides a purchase order number, credit card number, or other method of
payment acceptable to 3Com, to be used if 3Com needs to charge Customer for the replacement, as
explained below. The replacement product will normally be shipped not later than three (3) business days
after 3Com's verification of the DOA product, but may be delayed due to export or import procedures. The
shipment of a replacement product prior to 3Com receiving the defective product is subject to local legal
requirements and may not be available in all locations. When such a replacement is provided and Customer
fails to return the original product to 3Com within fifteen (15) days after shipment of the replacement, 3Com
will charge Customer for the replacement product, at list price.
Shipment of a Replacement Prior to 3Com Receiving the Defective Product is provided for five (5)
years, after which time it may be available for a specified fee, but in either case only if Customer provides a
purchase order number, credit card number, or other method of payment acceptable to 3Com, to be used if
3Com needs to charge Customer for the replacement, as explained below. 3Com will make commercially
reasonable efforts to ship the replacement product not later than five (5) business days after receiving the
request for a replacement, but may be delayed due to product availability or export or import procedures.
The shipment of a replacement product prior to 3Com receiving the defective product is subject to local legal
requirements and may not be available in all locations. When such a replacement is provided and Customer
fails to return the original product to 3Com within fifteen (15) days after shipment of the replacement, 3Com
will charge Customer for the replacement, at list price. This replacement prior to 3Com receiving the
defective product is different from the fee-based Advance Hardware Replacement Service, which is available
as a contracted service offering.
INCLUDED SERVICES:
3Com's Electronic Support Services, available at no charge, include 3Com Knowledgebase, information
on known bugs, documentation, release notes, and publicly available software and firmware upgrades.
3Com reserves the right to modify or cancel this offering at any time, without advance notice.
Telephone Technical Support, with coverage for basic troubleshooting only, will be provided at no
additional charge for 12 months from the date of purchase, on a commercially reasonable efforts basis.
Telephone support is provided by 3Com only if Customer purchased this product directly from 3Com, or if
Customer's reseller is unable to provide telephone support. To qualify for this telephone technical support,
Customer must register on the 3Com Web site at http://support.3Com.com/index.htm, and state the date of
purchase, product number, and serial number. 3Com's response to a request for telephone technical
support will be in the form of a return call from a 3Com representative by close of business the following
business day, defined as 9 a.m. to 5 p.m., local time, Monday through Friday, excluding local holidays. Please
refer to the Technical Support appendix in the User Guide for telephone numbers.
Software Updates, All software and firmware upgrades and the latest code for this product downloaded
through the 3Com Software Library.
WARRANTIES EXCLUSIVE:
IF A 3COM PRODUCT DOES NOT OPERATE AS WARRANTED ABOVE, CUSTOMER'S SOLE REMEDY FOR
BREACH OF THAT WARRANTY SHALL BE REPAIR, REPLACEMENT, OR REFUND OF THE PURCHASE PRICE
PAID, AT 3COM'S OPTION. TO THE FULL EXTENT ALLOWED BY LAW, THE FOREGOING WARRANTIES AND
REMEDIES ARE EXCLUSIVE AND ARE IN LIEU OF ALL OTHER WARRANTIES, TERMS, OR CONDITIONS,
EXPRESS OR IMPLIED, EITHER IN FACT OR BY OPERATION OF LAW, STATUTORY OR OTHERWISE, INCLUDING
WARRANTIES, TERMS, OR CONDITIONS OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE,
SATISFACTORY QUALITY, CORRESPONDENCE WITH DESCRIPTION, AND NON-INFRINGEMENT, ALL OF
WHICH ARE EXPRESSLY DISCLAIMED. 3COM NEITHER ASSUMES NOR AUTHORIZES ANY OTHER PERSON TO
ASSUME FOR IT ANY OTHER LIABILITY IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE OR
USE OF ITS PRODUCTS.
3COM SHALL NOT BE LIABLE UNDER THIS WARRANTY IF ITS TESTING AND EXAMINATION DISCLOSE THAT
THE ALLEGED DEFECT OR MALFUNCTION IN THE PRODUCT DOES NOT EXIST OR WAS CAUSED BY
CUSTOMER'S OR ANY THIRD PERSON'S MISUSE, NEGLECT, IMPROPER INSTALLATION OR TESTING,
UNAUTHORIZED ATTEMPTS TO OPEN, REPAIR OR MODIFY THE PRODUCT, OR ANY OTHER CAUSE BEYOND
THE RANGE OF THE INTENDED USE, OR BY ACCIDENT, FIRE, LIGHTNING, POWER CUTS OR OUTAGES,
OTHER HAZARDS, OR ACTS OF GOD.
LIMITATION OF LIABILITY:
TO THE FULL EXTENT ALLOWED BY LAW, 3COM ALSO EXCLUDES FOR ITSELF AND ITS SUPPLIERS ANY
LIABILITY, WHETHER BASED IN CONTRACT OR TORT (INCLUDING NEGLIGENCE), FOR INCIDENTAL,
CONSEQUENTIAL, INDIRECT, SPECIAL, OR PUNITIVE DAMAGES OF ANY KIND, OR FOR LOSS OF REVENUE OR
PROFITS, LOSS OF BUSINESS, LOSS OF INFORMATION OR DATA, OR OTHER FINANCIAL LOSS ARISING OUT
OF OR IN CONNECTION WITH THE SALE, INSTALLATION, MAINTENANCE, USE, PERFORMANCE, FAILURE, OR
INTERRUPTION OF ITS PRODUCTS, EVEN IF 3COM OR ITS AUTHORIZED RESELLER HAS BEEN ADVISED OF THE
POSSIBILITY OF SUCH DAMAGES, AND LIMITS ITS LIABILITY TO REPAIR, REPLACEMENT, OR REFUND OF THE
PURCHASE PRICE PAID, AT 3COM'S OPTION. THIS DISCLAIMER OF LIABILITY FOR DAMAGES WILL NOT BE
AFFECTED IF ANY REMEDY PROVIDED HEREIN SHALL FAIL OF ITS ESSENTIAL PURPOSE.
DISCLAIMER:
Some countries, states, or provinces do not allow the exclusion or limitation of implied warranties or the
limitation of incidental or consequential damages for certain products supplied to consumers, or the
limitation of liability for personal injury, so the above limitations and exclusions may be limited in their
application to you. When the implied warranties are not allowed to be excluded in their entirety, they will be
limited to the duration of the applicable written warranty. This warranty gives you specific legal rights which
may vary depending on local law.
GOVERNING LAW:
This Limited Warranty shall be governed by the laws of the State of California, U.S.A., and by the laws of the
United States, excluding their conflicts of laws principles. The United Nations Convention on Contracts for
the International Sale of Goods is hereby excluded in its entirety from application to this Limited Warranty.
3Com Corporation
5400 Bayfront Plaza
P.O. Box 58145
Santa Clara, CA 95052-8145
(408) 326-5000
June 23, 2000
REGULATORY NOTICES
FCC STATEMENT
This equipment has been tested and found to comply with the limits for a Class A digital device, pursuant to
part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful
interference when the equipment is operated in a commercial environment. This equipment generates, uses
and can radiate radio frequency energy and, if not installed and used in accordance with the instructions,
may cause harmful interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference to radio communications, in which case the user will be required to
correct the interference at their own expense.
Information To The User
If this equipment does cause interference to radio or television reception, which can be determined by
turning the equipment off and on, the user is encouraged to try to correct the interference by one or more of
the following measures:
■
Reorient the receiving antenna.
■
Relocate the equipment with respect to the receiver.
■
Move the equipment away from the receiver.
■
Plug the equipment into a different outlet so that equipment and receiver are on different branch circuits.
If necessary, the user should consult the dealer or an experienced radio/television technician for additional
suggestions. The user may find the following booklet prepared by the Federal Communications Commission
helpful:
How to Identify and Resolve Radio-TV Interference Problems
This booklet is available from the U.S. Government Printing Office, Washington, DC 20402, Stock No.
004-000-00345-4.
In order to meet FCC emissions limits, this equipment must be used only with cables which comply with IEEE
802.3.
CSA STATEMENT
This Class A digital apparatus meets all requirements of the Canadian Interference-Causing Equipment
Regulations.
Cet appareil numérique de la classe A respecte toutes les exigences du Règlement sur le matériel brouilleur
du Canada.
CE STATEMENT (EUROPE)
This product complies with the European Low Voltage Directive 73/23/EEC and EMC Directive 89/336/EEC as
amended by European Directive 93/68/EEC.
Warning: This is a class A product. In a domestic environment this product may cause radio interference in
which case the user may be required to take adequate measures.
VCCI S TATEMENT
BSMI STATEMENT