3COM 9100 User Manual

SuperStack® II

Switch 9100 User Guide

http://www.3com.com/

Part No. DUA1770-5AAA01 Published January 2000

3Com Corporation 5400 Bayfront Plaza Santa Clara, California 95052-8145

Copyright © 1999, 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.

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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.

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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 p rovided 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.

Portions of this documentation are reproduced in whole or in part with permission from (as appropriate).

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All other company and product names may be trademarks of the respective companies with which they are associated.

ONTENTS

BOUT THIS GUIDE

Terminology 11 Conventions 12 Related Documentation 13 Year 2000 Compliance 13 Product Registration 13

WITCH

About the Switch 9100 15 Summary of Features 15

Network Configuration Example 18 Switch 9100 Front View 20

Switch 9100 Rear View 22

Factory Defaults 23

9100 O

Port Connections 16

Full-duplex 17

Load Sharing 17

Switch Operation 17

Virtual LANs (VLANs) 17 Spanning Tree Protocol (STP) 18 Quality of Service (QoS) 18

Ports 20 LEDs 21

Power Sockets 23 Serial Number 23 MAC Address 23 Console Port 23 Reset Button 23

VERVIEW

NSTALLATION AND SETUP

Determining the Switch 9100 Location 25

Configuration Rules for Ethernet 26

Installing the Switch 9100 26

Rack Mounting 26 Free-Standing 27

Stacking the Switch and Other Devices 28 Connecting Equipment to the Console Port 28 Powering-up the Switch 30 Checking the Installation 30

Power On Self-Test (POST) 30 Logging on for the First Time 31

CCESSING THE SWITCH

Understanding the Command Syntax 34

Syntax Helper 34

Command Completion with Syntax Helper 34

Abbreviated Syntax 35

Command Shortcuts 35

Switch 9100 Numerical Ranges 35

Names 35

Symbols 36 Line-Editing Keys 37 Command History 37 Common Commands 37 Configuring Management Access 40

Default Accounts 41

Changing the Default Password 41

Creating a Management Account 42

Viewing Accounts 42 Deleting an Account 43

Methods of Managing the Switch 9100 43

Using the Console Interface 43

Creating an Access Profile 44

Access Profile Rules 45

Access Profile Example 45

Using Telnet 46

Connecting to Another Host Using Telnet 46 Configuring Switch IP Parameters 46

Using a BOOTP Server 46

Manually Configuring the IP Settings 47 Disconnecting a Telnet Session 49 Disabling Telnet Access 49

IP Host Configuration Commands 50 Using the Web Interface 50

Disabling Web Access 51

Using SNMP 51

Accessing Switch Agents 51 Supported MIBs 51 Configuring SNMP Settings 52 Displaying SNMP Settings 53 Resetting and Disabling SNMP 54

Checking Basic Connectivity 54 Configuring Switch 9100 Port Speed and Duplex Setting 55

100/1000BASE-T Ports 55

1000BASE-SX Ports 55 Enabling Autonegotiation 55 Flow Control 56

Switch 9100 Port Commands 56 Load Sharing on the Switch 9100 58

Load Sharing Algorithms 58 Configuring Switch 9100 Load Sharing 59 Load-Sharing Example 59 Verifying the Load Sharing Configuration 60

Switch 9100 Port-Mirroring 60

Port-Mirroring Commands 61 Switch 9100 Port-Mirroring Example 61

IRTUAL

Overview of Virtual LANs 63

Types of VLANs 66

LANS (VLANS)

Benefits 63 IGMP Snooping 64

Port-Based VLANs 66

Spanning Switches with Port-Based VLANs 67

Tagged VLANs 69

Uses of Tagged VLANs 70 Assigning a VLAN Tag 70 Mixing Port-Based and Tagged VLANs 72

Protocol-Based VLANs 72

Predefined Protocol Filters 73 Defining Protocol Filters 74 Deleting a Protocol Filter 75

Precedence of Tagged Packets Over Protocol Filters 75

VLAN Names 75

Default VLAN 75

Configuring VLANs on the Switch 76

VLAN Configuration Examples 77 Displaying VLAN Settings 78 Deleting VLANs 79

ORWARDING DATABASE

Overview of the FDB 81

FDB Contents 81

FDB Entry Types 81

How FDB Entries Get Added 82

Associating a QoS Profile with an FDB Entry 82 Configuring FDB Entries 83

FDB Configuration Examples 83 Displaying FDB Entries 84 Removing FDB Entries 85

(FDB)

PANNING TREE PROTOCOL

Overview of the Spanning Tree Protocol 87

How STP Works 89

Initialization 89 Stabilization 90 Reconfiguration 90

Spanning Tree Domains 90

Defaults 91 STP Configurations 91

(STP)

Configuring STP on the Switch 94

STP Configuration Example 96 Displaying STP Settings 96 Disabling and Resetting STP 97

UALITY OF SERVICE

Overview of Quality of Service 99 Building Blocks 99 QoS Profiles 100

Modifying a QoS Profile 101 The Blackhole QoS Profile 102 Traffic Groupings and Creating a QoS Policy 102

MAC-Based Traffic Groupings 103

Permanent MAC addresses 103 Dynamic MAC Addresses 103 Blackhole 104 Broadcast/Unknown Rate Limiting 104 Verifying MAC-Based QoS Settings 104

Packet Groupings 104

802.1p Packets 105

Physical and Logical Groupings 105

Source Port 106 VLAN 106 Verifying Physical and Logical Groupings 106

Verifying Configuration and Performance 107

Displaying QoS Information 107

QoS Monitor 107 Modifying a QoS Policy 108 Configuring QoS 109

(QOS)

TATUS MONITORING AND STATISTICS

Status Monitoring 111 Port Statistics 113 Port Errors 114 Port Monitoring Display Keys 115 Logging 115

Local Logging 116

Real-Time Display 117 Remote Logging 117 Logging Commands 118

RMON 119

About RMON 119 About the RMON Groups 120

Statistics 120

History 120

Alarms 120

Events 121 Benefits of RMON 121

Improving Efficiency 121

Allowing Proactive Management 121

Reducing the Traffic Load 121 RMON and the Switch 122 RMON Features of the Switch 122 Configuring RMON 123 Event Actions 123

SING THE WEB INTERFACE

Enabling and Disabling Web Access 125 Setting Up Your Browser 126 Accessing the Web Interface 126 Navigating the Web Interface 127

Ta s k F r a m e 1 2 7 Content Frame 128

Browser Controls 128

Status Messages 128 Standalone Buttons 128

Saving Changes 129

OFTWARE UPGRADE AND BOOT OPTIONS

Downloading a New Image 131

Rebooting the Switch 132

Saving Configuration Changes 132

Returning to Factory Defaults 133

Upgrading and Accessing BootROM 133

Upgrading BootROM 133 Accessing the BootROM menu 133

Boot Option Commands 135

AFETY INFORMATION

Important Safety Information 138

Lithium Battery 140

L’information de Sécurité Importante 141

Batterie au lithium 143

Wichtige Sicherheitsinformationen 144

Europe 144 Lithiumbatterie 145

ECHNICAL SPECIFICATIONS

ROUBLESHOOTING

Port Configuration 152 VLANs 153 STP 155

ECHNICAL SUPPORT

Online Technical Services 157

World Wide Web Site 157 3Com Knowledgebase Web Services 157 3Com FTP Site 158 3Com Bulletin Board Service 158

Access by Analog Modem 158 Access by Digital Modem 159

3Com Facts Automated Fax Service 159 Support from Your Network Supplier 159 Support from 3Com 159 Returning Products for Repair 161

LOSSARY

NDEX

NDEX OF COMMANDS

3COM C

EMC S

ORPORATION LIMITED WARRANTY

TATEMENTS

BOUT

HIS

UIDE

Terminology

This guide describes the required information to install and configure the SuperStack

This guide is intended for use by network administrators who are responsible for installing and setting up network equipment. It assumes a basic working knowledge of:

■

Local Area Networks (LANs)

Ethernet concepts

■

Ethernet switching and bridging concepts

■

Simple Network Management Protocol (SNMP)

If release notes are shipped with your product and the information there differs from the information in this guide, follow the instructions in the release notes.

Throughout this guide, the term Switch 9100 is used to refer to the SuperStack II Switch 9100.

For definitions of other terms used in this guide, refer to the “ located at the end of the user guide.

The terms Forwarding Database and Switch Database are interchangeable.

II Switch 9100 (3C17705).

Glossary,”

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/

BOUT THIS GUIDE

Conventions

Table 1 and Table 2 list conventions that are used throughout this guide.

Table 1

Icon Notice Type Description

Table 2

Convention Description

Screen displays

Commands

The words “enter” and “type”

Keyboard key names If you must press two or more keys simultaneously, the key

Words in

Notice Icons

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

Text Conventions

This typeface represents information as it appears on the screen.

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 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

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

menu, select

Help

Contents

Click OK.

Year 2000 Compliance

Product Registration

The Switch 9100 documentation set includes the following documents. To order additional copies, contact your sales representative.

SuperStack II Switch 9100 Quick Reference Guide

■

This guide describes the commands used to configure your

SuperStack II Switch 9100.

SuperStack II Switch 9100 Quick Installation Guide

■

This guide describes how to install your SuperStack II Switch 9100

system.

SuperStack II Switch 9100 Release Note

■

These notes provide information about the system software release,

including new features and bug fixes. They also provide information

about any changes to the SuperStack II Switch 9100 system’s

documentation.

For information on Year 2000 compliance and 3Com products, visit the 3Com Year 2000 Web page:

http://www.3com.com/products/yr2000.html

You can now register your SuperStack II Switch on the 3Com Web site to receive up-to-date information on your product:

http://www.3com.com/productreg/pdd

BOUT THIS GUIDE

WITCH

This chapter describes the following:

Switch 9100 features

■

How to use the Switch 9100 in your network configuration

■

Switch 9100 front view

■

Switch 9100 rear view

■

Factory default settings

■

9100 O

VERVIEW

About the Switch 9100

Summary of Features

Network managers are currently faced with the challenge of creating networks that can provide high-speed and high performance to serve the needs of today’s network users.

Part of the 3Com SuperStack provides switching between six 100/1000BASE-TX ports and two 1000BASE-SX ports.

The Switch 9100 has the following features:

Six autosensing 100/1000BASE-TX ports and two 1000BASE-SX ports

■

Support for 128K addresses in the switch forwarding database

■

Fully nonblocking operation

■

All ports transmit and receive packets at wire speed

■

Full-duplex operation

■

4Mb packet memory

■

Virtual LANs (VLANs)

Support for 256 VLANs

■

Support for IEEE 802.1Q tagging

■

II range of products, the Switch 9100

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■

VERVIEW

Controls traffic (including broadcasts)

■

Provides extra security

■

Protocol-sensitive filtering for VLANs

■

Responds to 802.3x flow-control messages

Autonegotiation to IEEE 802.3z for Gigabit Ethernet

Load sharing on multiple ports

■

Spanning Tree Protocol (STP)

Multiple spanning trees (64)

■

IGMP snooping to control IP multicast traffic

■

SuperStack II architecture

■

Integrated network management

■

19-inch rack or free-standing mounting

■

Agent support

■

Simple Network Management Protocol (SNMP)

■

Remote Monitoring (RMON)

(IEEE 802.1d) with multiple STP domains

groups 1 to 4 — statistics, history,

alarms, and events

Repeater and Bridge

■

Easy software upgrades

■

BOOTP for automatic

■

Local management

■

Console command-line interface (CLI) connection

■

Telnet CLI connection

■

Web-based management interface

■

Management Information Base (MIB)

Internet Protocol (IP)

address configuration

Port Connections

Traffic mirroring for all ports

■

The Switch 9100 has six autosensing 100/1000BASE-TX ports with standard RJ-45 connectors, and supports two 1000BASE-SX ports using standard MT-RJ connectors. You can connect other 100/1000BASE-TX devices (such as 100 Mbps or 100/1000 Mbps switches or modules) to the Switch 9100. You can also connect Switch 9100 devices to each other.

Summary of Features

100/1000BASE-TX ports are configured as MDIX (crossover). A crossover cable will typically be needed to connect these ports to another switch.

Full-duplex

Load Sharing

Switch Operation

The Switch 9100 provides full-duplex support for all ports. Full-duplex allows frames to be transmitted and received simultaneously and, in effect, doubles the bandwidth available on a link. All ports that are configured for (or negotiate to) 1000Mbps operate at full-duplex.

Load sharing with Switch 9100 switches allows the user to increase bandwidth and resilience between switches by using a group of ports to carry traffic in parallel between switches. The sharing algorithm allows the switch to use multiple ports as a single logical port. For example, Virtual LANs (VLANs) see the load-sharing group as a single virtual port. The algorithm also guarantees packet sequencing between clients.

For information on load sharing, refer to Chapter 3

The Switch 9100 uses the same algorithm as a conventional 802.1d bridge for filtering, forwarding, and learning packets.

Virtual LANs (VLANs)

The Switch 9100 has a

Virtual LAN (VLAN)

feature that allows you to build your network segments without being restricted by physical connections. A VLAN is a group of location- and topology-independent devices that communicate as if they are on the same physical

Network (LAN)

. Implementing VLANs on your network has the following

Local Area

three advantages:

It eases the change and movement of devices on networks. If a device

■

in VLAN

marketing

is moved to a port in another part of the network,

all you must do is specify that the new port belongs to VLAN

marketing

It helps to control broadcast traffic. If a device in VLAN

■

transmits a broadcast frame, only VLAN

marketing

devices receive the

frame.

It provides extra security. Devices in VLAN

■

communicate with devices on VLAN

marketing

using a device that provides

sales

can only

routing services.

For more information on VLANs, refer to Chapter 4

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VERVIEW

Network Configuration Example

Spanning Tree Protocol

The Switch 9100 supports the IEEE 802.1d

(STP)

Spanning Tree Protocol (STP),

which is a bridge-based mechanism for providing fault tolerance on networks. STP allows you to implement parallel paths for network traffic, and ensure the following:

Redundant paths are disabled when the main path is operational.

■

Redundant path is enabled if the main traffic paths fail.

■

For more information on STP, refer to Chapter 6

Quality of Service (QoS)

The Switch 9100 has a Policy-Based Quality of Service (QoS) feature that enables you to specify service levels for different traffic groups. By default, all traffic is assigned the "normal" QoS policy profile. If needed, you can create other QoS policies and apply them to different traffic types so that they have different guaranteed minimum bandwidth, maximum bandwidth, and priority.

For more information on QoS, refer to Chapter 7

This section describes where to position the Switch 9100 within your network. One common use of the Switch 9100 is on a Gigabit Ethernet backbone. Figure 1

shows an example of a Gigabit Ethernet backbone

within a building.

Network Configuration Example

Switch 3300

Switch 9100

To Backbone

Key

Server Workstation

91_001

Figure 1

Fast Ethernet Gigabit Ethernet

Switch 9100 used in a backbone configuration

The Switch 3300 on each floor has a 1000Mbps full-duplex link to the Switch 9100. Two servers on one floor of the building are connected to the Switch 9100 by way of two Gigabit Ethernet links. The two Gigabit Ethernet fiber ports on the Switch 9100 connect into a Gigabit Ethernet campus backbone.

Using Gigabit Ethernet as a backbone technology removes bottlenecks by providing scalable bandwidth, low-latency, and high-speed data switching.

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VERVIEW

In addition to providing a Gigabit backbone between Fast Ethernet workgroups, Gigabit Ethernet equipped file servers and services may be directly attached to the Switch 9100 providing improved performance to the Fast Ethernet desktop.

Switch 9100 Front View

Port status LEDs Gigabit Ethernet ports100/1000 Mbps ports

3C17705

Figure 2 shows the Switch 9100 front view.

Figure 2

456123

Switch 9100 front view

Unit status LEDs

The front panel has the following features:

Ports

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.

91_front

Either shielded or unshielded data cables with shielded or unshielded jacks can be connected to these data sockets.

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.

WARNHINWEIS

Switch 9100 Front View

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.

The Switch 9100 has six autosensing 100/1000BASE-TX ports using standard RJ-45 connectors. It also has two 1000BASE-SX ports that use standard MT-RJ connectors.

The Switch 9100 ports support the media types and distances listed in

Ta b l e 3

Table 3

Standard Media Type Mhz/Km Rating Maximum Distance

100BASE-TX Category 5 UTP Cable (100Mbps) 100 m

1000BASE-T Category 5 UTP Cable (1000Mbps) 100 m

1000BASE-SX (850 nm) 62.5/125 µm Multimode fiber

Media Types and Distances

62.5/125 µm Multimode fiber 50/125 µm Multimode fiber 50/125 µm Multimode fiber

160 200 400 500

220 m 275 m 500 m 550 m

For more information on 1000BASE-SX characteristics refer to IEEE Draft P802.3z/D4.2 Tables 38-2 and 38-6.

LEDs

Ta b l e 4

Table 4

LED Color Indicates

1000BASE-SX Port Status LEDs

Link/activity Green

(continued) (continued)

Switch 9100 LEDs

describes the LED behavior on the Switch 9100.

Link is present; port is enabled.

Yellow

Green flashing

Off

Frames are being transmitted/received on this port.

Link is present; port is disabled.

Link is not present.

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Table 4

Switch 9100 LEDs (continued)

LED Color Indicates

100/1000BASE-TX Port Status LEDs

Link/activity Green

Yellow

Link is present; port is enabled.

Frames are being transmitted/received on this port.

Green flashing

Off

Speed Status Green

Off

Link is present; port is disabled.

Link is not present.

1000BASE-T operation.

100BASE-TX operation.

Unit Status LED

Power 1 and Power 2 Green

Either or both LEDs green indicates the Switch 9100 is powered up.

Yellow

A yellow power LED indicates a power, overheat, or fan failure on the corresponding PSU.

Off

Both LEDs off indicates the Switch 9100 is powered off.

MGMT Green

Green flashing (1Hz)

Green flashing

The Switch 9100 is operating normally.

Power On Self Test

download is in progress.

POST is in progress.

(0.5Hz)

Yellow

The Switch 9100 has failed POST.

(POST) complete, software

Switch 9100 Rear View

AC Connectors Console port

Figure 3 shows the Switch 9100 rear view.

Power 2

Power 1

Figure 3

Switch 9100 rear view

Reset

91_rear

Factory Defaults

The rear panel has the following features:

Power Sockets

The Switch 9100 has two, fully redundant, load-sharing power supplies. Both automatically adjust to the supply voltage. The power supplies operate down to 90 V. The fuse is suitable for both 110 V AC and 220–240 V AC operation.

Serial Number

The serial number uniquely identifies this unit. You will need this serial number for fault-reporting purposes.

MAC Address

This label shows the unique Ethernet MAC address assigned to this device.

Console Port

The console port (9-pin, “D” type connector) is used to connect a terminal and to carry out local out-of-band management.

Factory Defaults

Reset Button

The reset button reinitializes the switch. The unit reboots with the last saved configuration settings.

Ta b l e 5 shows the factory defaults for the Switch 9100 features.

Table 5

Item Default Setting

Console port configuration 9600 baud, eight data bits, one stop bit, no

Serial or Telnet user account

Web network management Enabled

Virtual LANs One VLAN named

QoS All traffic is part of a single queue (qp2)

QoS monitoring Automatic roving

(continued)

Switch 9100 Factory Defaults

parity, XON/XOFF flow control enabled

admin

password

default VLAN; the default VLAN belongs to the STPD named

with no password and

; all ports belong to the

default

user

with no

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Table 5

Switch 9100 Factory Defaults (continued)

Item Default Setting

Spanning Tree Protocol Disabled for the switch; enabled for each port in

the STPD

802.1p priority Recognition enabled

802.3x flow control Enabled on Gigabit Ethernet ports

802.1Q tagging All packets are untagged on the default VLAN (

default)

Forwarding database aging

300 seconds (5 minutes)

period

IGMP Enabled

IGMP snooping Enabled

Port status Enabled on all ports

SNMP read community string

SNMP write community string

public

private

RMON history session Enabled

RMON alarms Enabled

Send trap if load is greater than 75% of available bandwidth

Send trap if there are more than 10 errors in 1,000 packets

BOOTP Enabled on the default VLAN (

default

)

NSTALLATION AND

This chapter describes the following:

How to decide where to install the Switch 9100

■

Ethernet configuration rules

■

How to install the switch in a rack or free-standing

■

How to connect equipment to the console port

■

How to check the installation using the

■

ETUP

Power On Self-Test (POST)

Determining the Switch 9100 Location

WARNING: Safety Information.

components from the Switch 9100 or carrying out any maintenance procedures, you must read the safety information provided in Appendix A of this guide.

AVERTISSEMENT: Consignes de sécurité.

tout composant du Switch 9100 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.

aus dem Switch 9100 entfernen oder dem Switch 9100 hinzufuegen oder Instandhaltungsarbeiten verrichten, lesen Sie die Sicherheitsanweisungen, die in Appendix A (Anhang A) in diesem Handbuch aufgefuehrt sind.

The Switch 9100 is suited for use in the office, where it can be free-standing or mounted in a standard 19-inch equipment rack. Alternatively, the device can be rack-mounted in a wiring closet or equipment room. Two mounting brackets are supplied with the switch.

Before installing or removing any

Avant d'installer ou d'enlever

Bevor Sie Komponenten

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NSTALLATION AND SETUP

Configuration Rules

for Ethernet

CAUTION:

When using a rack mounting system, the switch must be mounted on a shelf or runners. The rack mounting brackets alone are not sufficient to support the weight of the switch. The rack mounting brackets are provided to ensure stability across the horizontal plane. If you stack switches, you must ensure that the shelf or runners are strong enough to hold the combined weight. Ensure that the ventilation holes are not obstructed.

After deciding where to install the switch, make sure that:

The switch is accessible and cables can be connected easily.

■

Water or moisture cannot enter the case of the unit.

■

Temperature must be within the range of 0 to 40 °C (32 to 104°F).

■

Air-flow around the unit and through the vents on the side of the case

■

is not restricted. You should provide a minimum of 75mm (3 in.) clearance.

No objects are placed on top of the unit.

■

Units are not stacked more than four high if the switch is

■

free-standing.

The connectors, supported media types, and maximum distances for the Switch 9100 are described in Chapter 1

Installing the Switch 9100

Rack Mounting

The Switch 9100 can be mounted in a rack, or placed free-standing on a tabletop.

The Switch 9100 is 2U high and will fit in most standard 19-inch racks.

CAUTION:

The switch should only be used in a rack if it is mounted on runners, a shelf, or a tray to support the weight. The rack mount kits alone are not sufficient to support the weight of the switch. The rack mount kits must not be used to suspend the switch from under a table or desk, or attach it to a wall.

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.

Installing the Switch 9100

To install the mounting brackets on the switch, follow these steps:

Place the switch the right way up on a hard flat surface, with the front

facing toward you.

Remove the existing screws from the sides of the chassis.

Locate a mounting bracket over the mounting holes on one side of the

unit.

Insert the four screws and fully tighten with a suitable screwdriver, as

shown in Figure 4

Free-Standing

Figure 4

Repeat the three previous steps for the other side of the switch.

Refer to the instructions that shipped with your rack, runners, shelf or

Fitting the mounting bracket

tray to complete the installation of the switch into the mounting rack.

CAUTION:

When using rack mounting runners, a shelf, or a tray, make sure that the ventilation holes on the side of the switch are not obstructed.

Connect cables.

The Switch 9100 is supplied with four self-adhesive rubber pads. Apply the pads to the underside of the device by sticking a pad in the marked area at each corner of the switch.

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Stacking the Switch

and Other Devices

Connecting Equipment to the Console Port

Up to four units can be placed on top of one another. If mixing SuperStack II devices, the smaller units must be positioned at the top using rubber pads.

This section relates only to physically placing the devices on top of each other. The switch cannot be used to form a logical stack. It cannot be linked to other switches using special expansion cables to form a larger switch.

Apply the pads to the underside of the device by sticking a pad in the marked area at each corner of the switch. Place the devices on top of each other, ensuring that the pads of the upper device line up with the recesses of the lower device.

Connection to the console port is used for direct local management. The Switch 9100 console port settings are set as follows:

■

Baud rate

■

Data bits

■

Stop bit

■

Parity

■

Flow control

— 9600

— 8

— 1

— None

— XON/XOFF

The terminal connected to the console port on the switch must be configured with the same settings. This procedure will be described in the documentation supplied with the terminal.

Appropriate cables are available from your local supplier. To make your own cables, pinouts for a DB-9 male console connector are described in

Ta b l e 6

Table 6

Function Pin Number Direction

DCD (data carrier detect) 1 In

RXD (receive data) 2 In

TXD (transmit data) 3 Out

DTR (data terminal ready) 4 Out

(continued) (continued)

Console Connector Pinouts

Connecting Equipment to the Console Port

Table 6

Function Pin Number Direction

GND (ground) 5 -

DSR (data set ready) 6 In

RTS (request to send) 7 Out

CTS (clear to send 8 In

Console Connector Pinouts (continued)

Figure 5 shows the pin-outs for a 9-pin to RS-232 25-pin null modem

cable.

Switch 9100

Cable connector: 9-pin female

Screen TxD RxD Ground RTS CTS DSR DCD DTR

Shell

3 2 5 7 8 6 1 4

PC/Terminal

Cable connector: 25-pin male/female

Screen 3 2 7 4

5 6 8

RxD

TxD

Ground

RTS DTR CTS DSR

DCD

91_ser1

Figure 5

Null modem cable pin-outs

HAPTER

2: I

NSTALLATION AND SETUP

Figure 6 shows the pin-outs for a 9-pin to 9-pin PC-AT serial null modem

cable.

Powering-up the Switch

Switch 9100

Cable connector: 9-pin female

Screen DTR TxD RxD CTS Ground DSR RTS DCD

Figure 6

Shell

4 3 2 8 5 6 7 1

PC-AT serial cable pin-outs

PC-AT Serial Port

Cable connector: 9-pin female

Shell

Screen 1 2 3 4 5 6 7 8

DCD

RxD

TxD

DTR

Ground

DSR

RTS CTS

91_ser2

The Switch 9100 contains two power supplies. When both are connected, the power supplies operate in a load-sharing configuration. If one power supply fails, the other power supply takes over, ensuring uninterrupted network operation. Either one, or both power supplies may be connected to power the switch. It is recommended that you connect both power supplies.

Checking the Installation

Power On Self-Test

(POST)

To power-up the switch, follow these steps:

Connect one or both power cables to the switch.

Connect the power cable(s) to the wall outlet(s).

The switch automatically powers-up once it has been connected to the wall outlet.

After turning on power to the Switch 9100, the device performs a

On Self-Test

(POST).

During the POST, all ports are temporarily disabled, the packet LED is off, the power LED is on, and the MGMT LED flashes green. The MGMT LED flashes until the switch has successfully passed the POST.

Power

+ 154 hidden pages

3COM 9100 User Manual

Specifications and Main Features

Frequently Asked Questions

User Manual

Terminology

Conventions

Related Documentation

Year 2000 Compliance

Product Registration

Summary of Features

Port Connections

Full-duplex

Load Sharing

Switch Operation

Virtual LANs (VLANs)

Network Configuration Example

Quality of Service (QoS)

Switch 9100 Front View

Ports

LEDs

Switch 9100 Rear View

Factory Defaults

Power Sockets

Serial Number

MAC Address

Console Port

Reset Button

Determining the Switch 9100 Location

Installing the Switch 9100

Rack Mounting

Free-Standing

Connecting Equipment to the Console Port

Powering-up the Switch

Checking the Installation