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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, the 3Com logo, Net Age, SmartAgent, SuperStack and Transcend are registered trademarks of
3Com Corporation. CoreBuilder and PACE are trademarks of 3Com Corporation. 3ComFacts is a service mark
of 3Com Corporation.
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
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The paper is fully biodegradable and recyclable.
C
ONTENTS
BOUT THIS GUIDE
A
Conventions8
Related Documentation9
Year 2000 Compliance10
Documentation Comments10
NTRODUCING THE SWITCH
1
I
About the SuperStack II Switch 110012
Summary of Features12
Switch 1100 — Front View Detail13
Port Connections13
LEDs14
Switch 1100 — Rear View Detail15
Unit Information Label15
Power Socket15
Redundant Power System Socket15
Console Port15
Expansion Module Slot16
Transceiver Module Slot16
Matrix Port16
3ComFacts Automated Fax Service47
Support from Your Network Supplier47
Support from 3Com47
Returning Products for Repair49
iv
LOSSARY
G
NDEX
I
3COM C
EMC S
ORPORATION LIMITED WARRANTY
TATEMENTS
v
vi
A
BOUT
T
HIS
G
UIDE
This guide provides all the information you need to install and use a
SuperStack
change the way the Switch works using management software, refer to
the “SuperStack II Switch Management Guide” (part number
DUA1695-0BAA0x).
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).
This guide is intended for use with both Switch 1100 models:
■ 3C16950 — 24 10BASE-T ports
■ 3C16951 — 12 10BASE-T ports
All pictures and example screens show the 24-port model, however, all
procedures apply to the 24-port model and the 12-port model.
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 /
®
II Switch 1100 unit with default settings. If you want to
8A
BOUT THIS GUIDE
Conventions
Table 1 and Table 2 list conventions that are used throughout this guide.
Ta b le 1
IconNotice TypeDescription
Ta b le 2
ConventionDescription
Screen displays This typeface represents information as it appears on the
SyntaxThe word “syntax” means that you must evaluate the syntax
CommandsThe word “command” means that you must enter the
The words “enter”
and “type”
Keyboard key names If you must press two or more keys simultaneously, the key
Notice Icons
Information noteInformation that describes important features or
instructions
CautionInformation that alerts you to potential loss of data or
potential damage to an application, system, or device
WarningInformation that alerts you to potential personal injury
Text Conventions
screen.
provided and then supply the appropriate values for the
placeholders that appear in angle brackets. Example:
To enable RIPIP, use the following syntax:
SETDefault !<port> -RIPIP CONTrol =
Listen
In this example, you must supply a port number for <port>.
command exactly as shown and then press Return or Enter.
Commands appear in bold. Example:
To remove the IP address, enter the following command:
SETDefault !0 -IP NETaddr = 0.0.0.0
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.”
names are linked with a plus sign (+). Example:
Press Ctrl+Alt+Del
Related Documentation9
Related
Documentation
Ta b le 2
ConventionDescription
Words in
Text Conventions (continued)
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
Click OK.
Help
menu, select
Contents
.
In addition to this guide, each Switch 1100 document set includes the
following:
■
Management Guide (Part Number DUA1695-0BAA0x)
This guide contains all the management information for the Switch.
■
Quick Reference Guide (Part Number DQA1695-0AAA0x)
This guide contains a quick summary of the hardware and software
information for the Switch
■
Quick Installation Guide (Part Number DIA1695-0AAA0x)
This guide contains a summary of the package contents, and a quick
summary of the installation information for the Switch.
■
Release Notes (Part Number DNA1695-0AAA0x)
These notes provide information about the current software release,
including new features, modifications, and known problems.
■
SuperStack II Switch Help
This help provides information about the web interface software of
the Switch. It is supplied on the SuperStack II Switch CD-ROM.
■
SuperStack II Switch README File
This file provides information about the current software release,
including new features, modifications, and known problems.
10A
BOUT THIS GUIDE
In addition, there are other publications you may find useful:
■
Documentation accompanying the Expansion Modules.
■
Documentation accompanying the Transceiver Modules.
■
Documentation accompanying the Matrix Module and Matrix Cable.
■
Documentation accompanying the Advanced Redundant Power
System.
Year 2000
Compliance
Documentation
Comments
For information on Year 2000 compliance and 3Com products, visit the
3Com Year 2000 Web page:
http://www.3com.com/products/yr2000.html
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 II Switch 1100 User Guide
■
Part Number DUA1695-0AAA02
■
Page 21
1
I
NTRODUCING THE
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 II Switch 1100
■ Switch 1100 — Front View Detail
■ Switch 1100 — Rear View Detail
■ Network Configuration Examples
■ Configuration Rules for Fast Ethernet
■ Configuration Rules with Full Duplex
S
WITCH
1100
12C
HAPTER
1: I
NTRODUCING THE SWITCH
1100
About the
SuperStack II
Switch 1100
Summary of Features
The SuperStack® II system solves the problem of growth in dynamic
network environments and provides everything you need for successful
workgroup networking. Much more than a collection of stackable
components, the system comprises a complete, integrated architecture of
modular parts that are easy to install and use.
As part of this SuperStack II system, the Switch 1100 meets the challenge
of modern LANs and allows you to add features and capacity as your
network expands.
The Switch has the following hardware features:
■
12 or 24 Ethernet 10BASE-T ports
■
Two Fast Ethernet auto-negotiating 10BASE-T/100BASE-TX ports
■
Matrix port for interconnecting Switch 1100 / Switch 3300 units in a
single stack:
Connect two units back-to-back using a single Matrix Cable
■
Connect up to four units using Matrix Cables linked to a Matrix
■
Module
■
Slot for an Expansion Module or Matrix Module
■
Slot for a Transceiver Module (10Mbps Ethernet)
■
SuperStack II architecture:
Connects to Redundant Power System / Uninterruptable Power
■
System
19-inch rack or stand-alone mounting
■
For information about the software features of the Switch, refer to the
“SuperStack II Switch Management Guide” (DUA1695-0BAA01).
Switch 1100 —
Front View Detail
Figure 1
Port Connections10BASE-T Ports
The Switch has 12 or 24 10BASE-T ports configured as MDIX (cross-over).
The maximum segment length is 100m (328ft) over Category 3, 4, or 5
twisted pair cable.
Switch 1100 — Front View Detail13
Switch 1100 — Front view
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 31 for more information.
10BASE-T/100BASE-TX Ports
The Switch has two 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 31 for more information.
14C
HAPTER
1: I
NTRODUCING THE SWITCH
1100
LEDs
Table 3 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 “Checking for Correct Operation” on page 30.
Ta b le 3
LEDColorIndicates
TCVRYellowPort 1 is a Transceiver Module fitted to the rear of the
Port Status LEDs
PacketYellowPackets are being transmitted/received on the port.
StatusGreenA link is present, and the port is enabled.
Expansion Module Port Status LEDs
PacketYellowPackets are being transmitted/received on the
StatusYellowA valid Expansion Module or Matrix Module is
LED behavior
Switch.
OffPort 1 is operating as a 10BASE-T port.
OffNo packets are being transmitted/received on the port.
Green flashingA link is present, but the port is disabled.
OffNo link is present.
Expansion Module or Matrix Module port(s).
OffNo packets are being transmitted/received on the
Expansion Module or Matrix Module port(s).
installed.
Yellow flashingAn unrecognized Expansion Module or Matrix Module
is installed.
OffNo Expansion Module or Matrix Module is installed.
Unit LEDs
1–8GreenThe Switch forms a stack with other Switch 1100 /
Switch 3300 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.
OffThe Switch is stand-alone.
Power/Self Test LED
GreenThe Switch is powered-up.
Green flashingThe Switch is either downloading software or is
initializing (which includes running a Power On Self
Test).
YellowThe Switch has failed its Power On Self Test.
OffThe Switch is not receiving power.
Switch 1100 — Rear
View Detail
Figure 2
Switch 1100 — Rear View Detail15
Switch 1100 — 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 SocketThe 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 II Advanced Redundant Power System (RPS) to
the Switch. See “Connecting a Redundant Power System” on page 30.
Console PortThe 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.
16C
HAPTER
1: I
NTRODUCING THE SWITCH
1100
Expansion Module
Slot
Transceiver Module
Slot
Matrix Port
You can use this slot to install an Expansion Module that provides a
high-speed link to the rest of your network, or a Matrix Module that
provides four matrix ports for stacking Switch units together. 3Com
provides a range of Expansion Modules; contact your supplier for
availability. For more information about Matrix Modules, see “Stacking
Units” on page 27.
When an Expansion Module or Matrix Module is not installed, ensure the
blanking plate is secured in place.
You can use this slot to install a Transceiver Module. When a Transceiver
Module is installed, the Transceiver Module port becomes port 1 and the
port labelled 1 on the front panel becomes inactive. The Transceiver
Module can provide a 10Mbps Ethernet half duplex link to the rest of
your network using various media such as fiber and coaxial cabling.
When a Transceiver Module is not installed, ensure the blanking plate is
secured in place.
The matrix port allows you to:
■
Stack the Switch with another Switch 1100 or Switch 3300 unit using
a single Matrix Cable
■
Stack the Switch with up to three other Switch 1100 or Switch 3300
units, if one of the units has a Matrix Module installed.
For more information about the role of matrix port, see “Stacking Units”
on page 27.
Network Configuration Examples17
Network
Configuration
Examples
Network
Segmentation I
The following illustrations show some examples of how the Switch can be
placed on your network.
Figure 3 shows how the Switch 1100 fits into a large corporate network
with a Fast Ethernet infrastructure. A Switch is positioned on each floor
and servers are centralized in the basement.
Figure 3
Using the Switch 1100 to segment your network
18C
HAPTER
1: I
NTRODUCING THE SWITCH
1100
Network
Segmentation II
Figure 4 shows the Switch 1100 in a second workgroup situation. This
setup could be that of a small office within a large corporation, or part of
a larger corporate network. Most of the switch ports have multiple
endstations.
Figure 4
Using the Switch 1100 to segment your network
Network Configuration Examples19
Desktop Switching
Figure 5 shows the Switch 1100 used for a group of users in a large
corporate network. Here switching is brought to the desktop with a
single endstation per port. Local servers are connected via 100Mbps Fast
Ethernet links.
Figure 5
Using the Switch 1100 in a desktop environment
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