3com 3CB9E7 - CoreBuilder 9000 Chassis Switch Getting Started Manual

®
http://www.3com.com/
Part No. 10012166
Published August 1999
CoreBuilder® 9000
Enterprise Switch
Getting Started Guide
3Com Corporation
■
5400 Bayfront Plaza
Copyright © 1999, 3Com Corporation. 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 Corporation.
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make changes in content from time to time without obligation on the part
of 3Com Corporation to provide notification of such revision or change.
3Com Corporation provides this documentation without warranty, term, or
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limited to, the implied warranties, terms, or conditions of merchantability,
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If there is any software on removable media described in this
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product as a separate document, in the hard copy documentation, or on
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!LICENSE.TXT. If you are unable to locate a copy, please contact 3Com and
a copy will be provided to you.
UNITED STATES GOVERNMENT LEGEND
If you are a United States government agency, then this documentation
and the software described herein are provided to you subject to the
following:
All technical data and computer software are commercial in nature and
developed solely at private expense. Software is delivered as “Commercial
Computer Software” as defined in DFARS 252.227-7014 (June 1995) or as
a “commercial item” as defined in FAR 2.101(a) and as such is provided
with only such rights as are provided in 3Com’s standard commercial
license for the Software. Technical data is provided with limited rights only
as provided in DFAR 252.227-7015 (Nov 1995) or FAR 52.227-14 (June
1987), whichever is applicable. You agree not to remove or deface any
portion of any legend provided on any licensed program or documentation
contained in, or delivered to you in conjunction with, this User Guide.
Unless otherwise indicated, 3Com registered trademarks are registered in
the United States and may or may not be registered in other countries.
■
Santa Clara, California
■
95052-8145
3Com, the 3Com logo, CoreBuilder, and Transcend are registered
trademarks of 3Com Corporation. 3Com Facts is a service mark of
3Com Corporation.
Intel is a registered trademark of Intel Corporation.
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UNIX is a registered trademark in the United States and other countries,
licensed exclusively through X/Open Company, Ltd.
All other company and product names may be trademarks of the respective
companies with which they are associated.
Guide written by Jackie Bonin. Edited by Ben Mann, Jr. Illustrated by
Corrinne Hamilton. Produced by Barbara Maurice.
CONTENTS
2
ABOUT THIS GUIDE
Conventions 7
Related Documentation 8
Paper Documents 9
Documents on CD-ROM 9
World Wide Web Site 10
3Com Facts Automated Fax Service
Documentation Comments 10
Year 2000 Compliance
10
1
Overview 21
Switch Features 23
Management Features 24
EME Management Architecture 24
EME Network Management Functions 25
Switch Backplane Architecture 25
Backplane Connector Architecture 26
Hardware Components 27
Power Supplies 27
820-watt AC Power Supply 27
–48-volt DC Power Supply 28
Fan Trays 29
Modules 30
10
COREBUILDER 9000 ENTERPRISE SWITCH
7-SLOT CHASSIS
Overview 11
Switch Features 12
Management Features 13
EME Management Architecture 13
EME Network Management Functions 14
Switch Backplane Architecture 15
Backplane Connector Architecture 15
Hardware Components 16
Power Supplies 16
930-watt AC Power Supply 17
–48-volt DC Power Supply 17
Fan Tray 19
Modules 19
COREBUILDER 9000 ENTERPRISE SWITCH
8-SLOT CHASSIS
3
COREBUILDER 9000 ENTERPRISE SWITCH
16-SLOT CHASSIS
Overview 31
Switch Features 33
Management Features 34
EME Management Architecture 34
EME Network Management Functions 34
Switch Backplane Architecture 35
Backplane Connector Architecture 36
Hardware Components 36
Power Supplies 36
820-watt AC Power Supply 37
–48-volt DC Power Supply 38
Fan Trays 39
Modules 40
4
COREBUILDER 9000 ENTERPRISE SWITCH M ODULES
Switch Fabric Modules 42
Gigabit Ethernet Switch Fabric Modules 43
ATM Switch Fabric Module 44
Redundant Operation in the 8-slot Chassis and 16-slot
Chassis 45
Management Modules 46
Enterprise Management Engine (EME) 46
Enterprise Management Controller (EMC) 47
Interface Modules 47
Fast Ethernet Switching Modules 48
Gigabit Ethernet Interface Modules 49
ATM Interface Modules 50
Slot Restrictions 51
Management Access 51
Administration Console Access 51
Web Management Access 52
Where to Go from Here 52
5
START THE SWITCH
Power On the Switch 55
What Occurs During Startup 55
Where to Go from Here 56
6
NAVIGATING THE DOCUMENTATION CD-ROM
Viewing PDF Files 61
Using Bookmarks 61
Searching Documents 62
Browsing on the Web 62
7
MAINTENANCE FOR THE 7-SLOT CHASSIS
Routine Maintenance 63
Removing and Replacing a Power Supply 64
Removing a 930-watt Power Supply 65
Replacing a 930-watt Power Supply 66
Removing a –48-volt DC Power Supply 68
Replacing a –48-volt DC Power Supply 69
Removing and Replacing a Fan Tray 70
Removing the Fan Tray from a 7-slot Chassis 71
Replacing the Fan Tray in a 7-slot Chassis 72
8
MAINTENANCE FOR THE 8-SL OT CHASSIS AND THE
16-SLOT CHASSIS
Routine Maintenance 75
Removing and Replacing a Power Supply 76
Removing an 820-watt Power Supply 77
Replacing an 820-watt Power Supply 80
Removing a –48-volt DC Power Supply 81
Replacing a –48-volt DC Power Supply 83
Removing and Replacing a Fan Tray 85
Removing a Fan Tray from the Chassis 85
Replacing a Fan Tray in a Chassis 86
A
B
SPECIFICATIONS
7-slot Chassis Specifications 89
Physical 89
Environmental 90
Power 90
Regulatory Compliance 90
Interfaces 91
8-slot Chassis Specifications 91
Physical 91
Environmental 91
Power 92
Regulatory Compliance 92
Interfaces 93
16-slot Chassis Specifications 93
Physical 93
Environmental 93
Power 94
Regulatory Compliance 94
Interfaces 95
Power Supply Regulatory Compliance 95
820-watt and 930-watt AC Power Supply
–48-volt DC Power Supply 95
SITE REQUIREMENTS, SAFETY, AND
PREINSTALLATION INFORMATION
Site Requirements for the Switch 97
Location Requirements 97
Precautionary Guidelines 98
Rack-Mount Installation Recommendations 99
Ventilation Requirements 100
Ventilation Requirements for the 7-slot Chassis 100
Ventilation Requirements for the 8-slot Chassis and
16-slot Chassis 100
Power Requirements 101
930-watt AC Power Supply 101
820-watt AC Power Supply 102
–48-volt DC Power Supply 102
Safety Information 102
Denmark Safety Certification 103
Laser Warning 103
FDA Class 1 Laser Device 103
LED Warning 104
Preinstallation Information 104
95
C
INTELLIGENT POWER SUBSYSTEM
CoreBuilder 9000 Power Supply Models 107
Intelligent Power Subsystem Features 108
Power Management 108
Power Supply Modes 109
Power Availability and Power Supply Capacity 111
D
TECHNICAL SUPPORT
Online Technical Services 113
World Wide Web Site 113
3Com Knowledgebase Web Services 113
3Com FTP Site 114
3Com Bulletin Board Service 114
Access by Analog Modem 114
Access by Digital Modem 114
3Com Facts Automated Fax Service 114
Support from Your Network Supplier 115
Support from 3Com 115
Returning Products for Repair 116
GLOSSARY
INDEX
3COM CORPORATION LIMITED WARRANTY
ABOUT THIS GUIDE
This CoreBuilder 9000 Enterprise Switch Getting
Started Guide provides an overview of your
CoreBuilder® 9000 Enterprise Switch and its
components, describes the power management
subsystem, provides information about what occurs
when you start up your Switch, explains how to use
the documentation CD-ROM, and lists important
safety and preinstallation information.
Conventions
Table 1 and Table 2 list conventions that are used
throughout this guide.
Table 1 Notice Icons
Icon
This guide is intended for the system or network
administrator who is responsible for installing and
managing the network hardware. It assumes a
working knowledge of local area network (LAN)
operations, but it does not assume prior knowledge
of 3Com’s CoreBuilder 9000 high-performance
networking equipment.
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.
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/
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 enable RIPIP, use the following syntax:
SETDefault !<port> -RIPIP
CONTrol = Listen
In this example, you must supply a port number
for <port>.
8
ABOUT THIS GUIDE
Table 2 Text Conventions (continued)
Convention
Description
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 remove the IP address, enter the following
command:
Related Documentation
The following documents compose the
CoreBuilder 9000 documentation set. Documents are
available in three forms:
■
This section lists the paper documents that are
shipped with your system.
SETDefault !0 -IP NETaddr =
0.0.0.0
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
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.
Paper documents
■
CD-ROM
The CoreBuilder 9000 Documentation CD-ROM
contains online versions of the paper documents as
well as other CoreBuilder 9000 documents in
online format only.
■
World Wide Web and Fax Services
Various types of documentation and information
are available from the 3Com Web site and fax
services.
To order a paper copy of a document that you see on
the CD, or to order additional CDs, contact your sales
representative, or call the 3Com Customer Call
Center at (800) 724-2447 and choose option 3.
Click OK.
For a complete list of all CoreBuilder 9000
documents, see the CoreBuilder 9000 Documentation
Overview.
Related Documentation
Paper Documents
These documents are shipped with the
CoreBuilder 9000 chassis:
■
■
Chassis Quick Installation Guides
Instructions for installing the 7-slot chassis, 8-slot
chassis, and 16-slot chassis in a rack, on a table, or
on a shelf, including prerequisites
An overview, LED status information, and
installation instructions for each interface module,
switch fabric module, and management module
CoreBuilder 9000 Enterprise Switch Getting
Started Guide (this guide)
Power Supply Installation Guides
Instructions for installing and removing a power
supply for the 7-slot chassis, the 8-slot chassis, and
the 16-slot chassis
■
These documents are shipped with their individual
modules or field-replaceable units:
Module Quick Start Guides or Getting Started
Guides
An overview of the Switch and its components for
the 7-slot chassis, 8-slot chassis, and 16-slot
chassis; a description of the power management
subsystem; information about what occurs when
you start up your Switch; how to use the
documentation CD-ROM; and important safety,
location, and preinstallation information
■
Web Management User Guide
Overview, installation, and troubleshooting
information for the Web Management suite of
applications that help you manage your Switch
with a Web browser
■
■
CoreBuilder 9000 Documentation Overview
A list of all CoreBuilder 9000 documents
Module Command Quick Reference cards or booklets
A list of the commands that are used on each
module
■
Fan Tray Removal and Replacement Guides
Instructions for removing a faulty fan tray and
installing a new one in the 7-slot chassis, the 8-slot
chassis, and the 16-slot chassis
■
Module Release Notes
An explanation of software issues and
documentation issues in the current release
Documents on CD-ROM
The Documentation CD-ROM contains online versions
of the paper guides that are shipped with your chassis
and other CoreBuilder 9000 documents in online
format only, such as:
■
■
9
CoreBuilder 9000 Enterprise Management Engine
User Guide
How to use the CoreBuilder 9000 Enterprise
Management Engine (EME) to manage the chassis
and the modules in the chassis.
ABOUT THIS GUIDE
10
■
■
CoreBuilder 9000 Implementation Guide
Call 3Com Facts using your Touch-Tone telephone:
Information about using features of the
CoreBuilder 9000 Enterprise Switch after you
install it and attach it to your network.
1 408 727-7021
Command Reference Guide
Information about the Administration Console
commands that you use to configure the Switch.
This multiplatform guide documents commands
for the CoreBuilder 9000 as well as other 3Com
systems.
■
Documentation Comments
Your suggestions are very important to us. They help
us make our documentation more useful to you.
Please send e-mail comments about this guide to:
[email protected]
CoreBuilder ATM Enterprise Switch Management
Guide
Please include the following information when
commenting:
How to use, configure, and network the ATM
Switch Fabric Module.
■
Document title
■
Document part number (found on the front or
back page of the document)
■
Page number (if appropriate)
World Wide Web Site
Most user guides and release notes are available in
Adobe Acrobat Reader Portable Document Format
(PDF) or Hypertext Markup Language (HTML) from
the 3Com World Wide Web support site at:
Example:
CoreBuilder 9000 Enterprise Switch Getting
Started Guide
http://support.3com.com/
Part Number 10012166
In the Select by Product Name list under Support
Tools, Documents and Information, select
CoreBuilder.
Page 30
3Com Facts Automated Fax Service
The 3Com FactsSM automated fax service provides
technical articles, diagrams, and troubleshooting
instructions on 3Com products 24 hours a day, 7 days
a week.
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
COREBUILDER 9000 ENTERPRISE SWITCH
7-SLOT CHASSIS
1
This chapter contains an overview of 3Com’s
CoreBuilder® 9000 Enterprise Switch 7-slot chassis.
The media and internetworking backplane and the
power distribution function are physically located on
a single backplane unit.
The topics in this chapter include:
The 7-slot chassis contains:
■
Overview
■
Switch Features
■
One fan tray with four fans.
■
Management Features
■
■
Switch Backplane Architecture
A power supply bay that holds up to two power
supplies and facilitates load sharing and
redundancy.
■
Hardware Components
■
Two slots for management modules.
■
A payload bay with slots for:
Overview
The CoreBuilder 9000 Enterprise Switch 7-slot chassis
(Model Number 3CB9E7) is a high-performance
switch that consists of:
■
A chassis.
■
A power subsystem.
■
A combination of a switch fabric module and
interface modules that form a network
infrastructure.
■
Six interface modules.
■
One switch fabric module.
Figure 1 and Figure 2 show the front and the rear,
respectively, of the CoreBuilder 9000 Enterprise
Switch 7-slot chassis.
12
CHAPTER 1: COREBUILDER 9000 ENTERPRISE SWITCH 7-SLOT C HASSIS
Figure 1 CoreBuilder 9000 7-slot Chassis Front View
Figure 2 CoreBuilder 9000 7-slot Chassis Rear View
Management
module slots
Power
supply
slot 2
®
CoreBuilder 9000
R
9
8
7
Power
supply
(in slot 1)
6
5
4
3
2
1
Switch Features
Fan tray
slot
Switch
fabric module slot
Interface
module slots
The CoreBuilder 9000 7-slot Enterprise Switch has the
following features:
■
An intelligent power management system
■
An intelligent system inventory management
system
■
An integrated, high-performance, distributed
network management system
■
Modules and a fan tray that you can install or
remove while the Switch is operating (called hot
swapping), for field upgrades and service
■
Support for 3Com Transcend® Network Control
Services for UNIX or for Windows
Management Features
■
Slots for two management modules that do not
take up interface module or switch fabric module
space
You can fill the management module slots with an
Enterprise Management Engine (EME) and an
Enterprise Management Controller (EMC), or with
two EMEs to provide standby management
support. You can also run the 7-slot Switch with
one EME installed.
■
■
■
■
13
One exhaust fan tray (with the power and
reliability of four fans) to make sure that the
chassis maintains the optimal temperature for
operation
Management Features
You can manage the CoreBuilder 9000 Enterprise
Switch through:
The EME uses the management bus to send
commands to all installed interface modules and
the switch fabric module and to collect
information from the modules.
■
An out-of-band terminal interface
■
The Simple Network Management Protocol (SNMP)
■
The 3Com Transcend Network Control Services
A single passive backplane that enables the use of
multiple networking technologies, defined by the
type of switch fabric module that is installed
■
The standard Telnet client-to-server application
■
The 3Com Web Management suite of applications
One slot for a switch fabric module in the chassis
to provide optimal network performance
Slots for two power supplies to supply 930 watts
with n + 1 redundancy and 1860 watts without
n + 1 redundancy, depending on the type and
quantity of installed modules
■
Power supplies that you can add or replace while
the chassis is running (referred to as warm
swapping)
■
Slots for six interface modules
■
Packet switching at an aggregated bandwidth of
up to 30 Gbps
■
Power fault-tolerant mode where you can reserve
the power of a single power supply (930 watts) to
act as a backup if the other power supply fails
This section contains the following topics:
■
EME Management Architecture
■
EME Network Management Functions
EME Management Architecture
The Enterprise Management Engine (EME) is the
primary communication mechanism into the 7-slot
chassis and any installed switch fabric modules and
interface modules.
The EME is an SNMP-based network management
module that manages and controls the 3Com
CoreBuilder 9000 chassis and its modules.
CHAPTER 1: COREBUILDER 9000 ENTERPRISE SWITCH 7-SLOT C HASSIS
14
The EME has the following features:
■
Chassis Management Architecture — Provides a
cost-efficient management architecture that:
■
■
■
Provides a central point of contact for chassis
management
Provides Enterprise Management Controller
(EMC) functions, as well as EME functions with
performance enhancements
EME Network Management Functions
The EME provides the following management and
control capabilities:
■
Configurations — When you are logged in using
the Administer password, you can configure the
EME and monitor the chassis environment.
■
Inventory — The EME provides a complete
inventory of Switch contents, including fans and
power supplies. The inventory lists current
software revisions for all installed modules. The
inventory system also supports a scratchpad
feature so that you can add custom information to
the EME display.
■
Power Management — With EME commands,
you can manage how the Switch reacts to low
power situations. The Switch can also provide
fault-tolerant power, which protects the Switch
against power supply failures.
■
SNMP Support — SNMP (Simple Network
Management Protocol) is a protocol that the
Internet Engineering Task Force defined. The EME
acts as an agent in an SNMP-managed
environment. The agent responds to SNMP
requests and generates SNMP traps.
■
Telnet Support — With the EME telnet
command, you can connect an EME to any other
Telnet device. The EME also supports incoming
Telnet sessions so that you can manage an EME
from a workstation with Telnet support or from
another EME.
Intelligent Power Management — Works with
the EMC to protect network integrity using power
management. The EME manages power use in the
chassis by:
■
■
■
Preventing newly installed interface modules,
switch fabric modules, and management
modules from receiving power when there is
not enough power available.
Allowing you to prioritize the order in which
modules power off (if there is insufficient power
available).
Allowing you to implement fault-tolerant
power, which allows the chassis to reserve some
of its power capacity to protect against a power
supply failure.
Switch Backplane Architecture
■
In-Band and Out-of-Band Download — The
EME provides both in-band and out-of-band
downloads. In-band download uses TFTP (Trivial
File Transfer Protocol) through a network
connection. Out-of-band download uses
XMODEM software and the RS-232 serial port on
the front panel of the EME. The EME allows you to
download to multiple modules using a single
command.
■
Web Management Support — You can monitor
and manage the EME through the
CoreBuilder 9000 Web Management suite of
applications.
■
Transcend Network Control Services
Support — You can also monitor and manage the
EME through the 3Com Transcend Network
Control Services.
The backplane:
■
Supports one slot for a switch fabric module.
■
Supports automatic configuration detection.
■
Provides central clock distribution.
Backplane Connector Architecture
The backplane connector provides easy access to all
the services from the CoreBuilder 9000, including two
10-Mbps MLAN (Management LAN) channels, one
UART channel, a number of system clocks, and the
SCI (Serial Communication Interface) communications
channel.
The backplane connector consists of the:
■
Common signals bus — The common signals bus
consists of all the signals that are used for
system-wide functions. These include power
supply monitoring and control, backplane reset,
system clock signals, and an LED test signal.
■
Power delivery — The power delivery connector
provides the following voltage: +2.1V, +3.5V,
+5.2V, and +12V.
■
System communications channels — The
management system uses two types of busses to
communicate with other modules in the Switch:
Switch Backplane Architecture
The backplane of the CoreBuilder 9000 7-slot
Enterprise Switch incorporates 60 Gbps of bandwidth
switching capacity. The backplane uses a dual,
star-wired interconnect scheme to connect each
payload slot to the switch fabric module.
The backplane of the CoreBuilder 9000 7-slot
Enterprise Switch is constructed from a non-blocking,
passive, and redundant design.
Five of these links (5 traces, each 2 Gbps) are
star-wired to the slot for the switch fabric module,
providing five primary high-speed links for each
interface module.
15
■
Serial Communication Interface (SCI) — The
SCI bus serves as a communications path
between management modules.
CHAPTER 1: COREBUILDER 9000 ENTERPRISE SWITCH 7-SLOT C HASSIS
16
■
Management LANs — The MLANs are
high-speed management busses that provide
intermodule communication and network
connectivity to the System Management
Component (SMC). Each MLAN runs at
10 Mbps.
A power management channel informs the Switch of
the power requirements for all modules. If the EME
determines that there is not enough power in the
Switch for that module, then the module does not
power on.
The connector in the slot for the switch fabric module
is a 948-pin version of the internetworking connector.
This connector supports connections up to
30 high-speed, full-duplex, serial links on the
backplane and all the other chassis services that are
available to the switch fabric module.
Interface modules and the switch fabric module
access Switch services through connectors to the
backplane.
Hardware Components
This section describes the following chassis
components:
■
Power Supplies
■
930-watt AC
■
–48-volt DC
■
Fan Tray
■
Modules
Power Supplies
The CoreBuilder 9000 7-slot chassis can contain two
back-loading, 930-watt, modular AC power supplies
(Model Number 3CB9EP9) or two –48-volt DC power
supplies (Model Number 3CB9EP8D7). The power
supplies provide power to the management modules,
switch fabric module, interface modules, fans, and
backplane.
Figure 3 shows a 930-watt AC power supply in a
CoreBuilder 9000 7-slot chassis.
Figure 3 930-watt AC Power Supply in the CoreBuilder 9000
7-slot Chassis
Power
supply
slot 2
Power
supply
(in slot 1)
Hardware Components
You can add or replace power supplies while the
chassis is running (referred to as warm swapping). See
Chapter 7, “Maintenance for the 7-Slot Chassis,” for
instructions about how to replace a faulty power
supply.
17
Figure 4 930-watt AC Power Supply for the CoreBuilder 9000
7-slot Chassis
Standby/On
switch
AC input
socket
Spring-loaded
screw
930-watt AC Power Supply
CoreBuilder 9000 power supplies are autosensing.
Each power supply (Figure 3) can automatically sense
the type of input voltage to which it is being
connected at the electrical outlet.
The power supplies are load sharing in that all power
supplies provide an equal amount of the load current.
Each 930-watt power supply has its own power cord
and is shipped separately from the chassis. The type
of power cord depends on your country location.
–48-volt DC Power Supply
Figure 4 shows the 930-watt AC power supply for the
CoreBuilder 9000 7-slot chassis.
The CoreBuilder 9000 7-slot chassis can also contain
two modular load-sharing –48-volt DC power
supplies (Model Number 3CB9EP8D7).
Power supply
handle
CHAPTER 1: COREBUILDER 9000 ENTERPRISE SWITCH 7-SLOT C HASSIS
Figure 5 shows a–48-volt DC power supply in a
CoreBuilder 9000 7-slot chassis.
Figure 5 –48-volt DC Power Supply in a CoreBuilder 9000
7-slot Chassis
The –48-volt DC power supply has its own connector.
The type of cable that you use depends on your
configuration. Figure 6 shows the –48-volt DC power
supply for the CoreBuilder 9000 7-slot chassis.
Figure 6 CoreBuilder 9000 7-slot Chassis –48-volt DC Power
Supply
INPUT RATING
-48 V
/27A
-48V
ON
STANDBY
Standby/On
switch
0V
18
Spring-loaded
screws
Spring-loaded
screw
DC input
connector
Handle
Hardware Components
Fan Tray
Modules
The CoreBuilder 9000 7-slot chassis contains one fan
tray, which contains four fans (Model
Number 3CBEF7). The fans cool the interface
modules, the switch fabric module, and the
management modules.
Figure 7 CoreBuilder 9000 7-slot Chassis Fan Tray
You insert modules horizontally into the 7-slot chassis.
Slots are numbered from bottom to top, with the
bottom slot being number 1.
The 7-slot chassis can contain the following modules:
■
Management — There are two slots (slot 8 and
slot 9) for management modules:
■
Spring-loaded
screw
R
9
8
Fan tray
handle
7
6
5
■
4
3
2
■
1
Spring-loaded
screw
19
The Enterprise Management Engine (EME) is
an SNMP-based network management module
that manages and controls the
CoreBuilder 9000 Enterprise Switch and its
modules. The EME is the primary
communication mechanism into the Switch
and modules. You manage other intelligent
modules within the chassis through the EME.
The Enterprise Management Controller (EMC)
module provides standby controller functions
for an EME in a CoreBuilder 9000 Enterprise
Switch.
Interface — There are six slots (slot 1 through
slot 6) for interface modules. The interface
modules offer a selection of packet-based or
cell-based interfaces that work with the switch
fabric module.
CHAPTER 1: COREBUILDER 9000 ENTERPRISE SWITCH 7-SLOT C HASSIS
20
■
Switch fabric — There is one slot (slot 7) for a
switch fabric module. You can select one or the
other of the modules. You cannot mix one type of
module with the other type of module.
■
Gigabit Ethernet Switch Fabric Modules
The Gigabit Ethernet (GEN) Switch Fabric
Module is the central backplane aggregator for
the Switch.
■
ATM Switch Fabric Modules
The ATM Switch Fabric Module is the core cell
switching engine of the CoreBuilder 9000 ATM
Enterprise Switch. This module controls and
monitors passive backplane and ATM activity.
COREBUILDER 9000 ENTERPRISE SWITCH
8-SLOT CHASSIS
2
This chapter contains an overview of 3Com’s
CoreBuilder® 9000 Enterprise Switch 8-slot chassis.
The 8-slot chassis contains:
■
Two fan trays, each with three fans.
The topics in this chapter include:
■
A power supply bay that holds up to three power
supplies and facilitates load sharing and
redundancy.
■
Two slots for management modules.
■
A payload bay with slots for:
■
Overview
■
Switch Features
■
Management Features
■
Switch Backplane Architecture
■
Hardware Components
Overview
The CoreBuilder 9000 Enterprise Switch 8-slot chassis
(Model Number 3CB9E8) is a high-performance
switch that consists of:
■
A chassis.
■
A power subsystem.
■
A combination of switch fabric modules and
interface modules that form a network
infrastructure.
The media and internetworking backplane and the
power distribution function are physically located on
a single backplane unit.
■
Six interface modules.
■
Two switch fabric modules.
Figure 8 and Figure 9 show the front and the rear,
respectively, of the CoreBuilder 9000 Enterprise
Switch 8-slot chassis.
CHAPTER 2: COREBUILDER 9000 ENTERPRISE SWITCH 8-SLOT C HASSIS
22
Figure 8 CoreBuilder 9000 8-slot Chassis Front View
Figure 9 CoreBuilder 9000 8-slot Chassis Rear View
Switch fabric
module slots
Interface
module slots
Management
module slots
®
CoreBuilder 9000
R
1
2
3
4
5
6
7
8
9
Module and
power supply
fan trays
10
Spring-loaded
screw
ON
Power supply slots
Switch Features
Switch Features
The CoreBuilder 9000 8-slot Enterprise Switch has the
following features:
■
An intelligent power management system
■
An intelligent system inventory management
system
■
An integrated, high-performance, distributed
network management system
■
Modules and fan trays that you can install or
remove while the Switch is operating (called hot
swapping), for field upgrades and service
■
Support for 3Com Transcend ® Network Control
Services for UNIX or for Windows
■
Slots for two management modules that do not
take up interface module or switch fabric module
space
You can fill the management module slots with an
Enterprise Management Engine (EME) and an
Enterprise Management Controller (EMC), or with
two EMEs to provide standby management
support. You can also run the 8-slot Switch with
one EME installed.
The EME uses the management bus to send
commands to all installed interface modules and
switch fabric modules and to collect information
from the modules.
■
A single passive backplane that is capable of
70 redundant serial links and that enables the use
of multiple networking technologies, defined by
the type of switch fabric module that is installed
23
■
Two switch fabric module slots in the chassis to
provide complete redundancy and optimal
network performance
■
Slots for three power supplies to supply from
820 watts to 1640 watts with n + 1 redundancy
and 2460 watts without n + 1 redundancy,
depending on the type and quantity of installed
modules
■
Power supplies that you can add or replace while
the chassis is running (referred to as warm
swapping)
■
Slots for six interface modules
■
Cell or packet switching at an aggregated
bandwidth of up to 280 Gbps (primary and backup
interconnects)
■
Power fault-tolerant mode where you can reserve
the power of a single power supply (820 watts) to
act as a backup if one of the other power supplies
fails
■
Two triple operation exhaust fan trays (with the
power and reliability of six fans) to make sure that
the chassis maintains the optimal temperature for
operation
CHAPTER 2: COREBUILDER 9000 ENTERPRISE SWITCH 8-SLOT C HASSIS
24
Management Features
You can manage the CoreBuilder 9000 Enterprise
Switch through:
■
An out-of-band terminal interface
■
The Simple Network Management Protocol (SNMP)
■
The 3Com Transcend Network Control Services
■
The standard Telnet client-to-server application
■
The 3Com Web Management suite of applications
This section contains the following topics:
■
EME Management Architecture
■
EME Network Management Functions
The EME has the following features:
■
Chassis Management Architecture — Provides a
cost-efficient management architecture that
provides:
■
■
■
■
■
■
The EME is an SNMP-based network management
module that manages and controls the 3Com
CoreBuilder 9000 chassis and its modules.
Enterprise Management Controller (EMC)
functions, as well as EME functions with
performance enhancements
Intelligent Power Management — Works with
the EMC to protect network integrity using power
management. The EME manages power use in the
chassis by:
EME Management Architecture
The Enterprise Management Engine (EME) is the
primary communication mechanism into the 8-slot
chassis and any installed switch fabric modules and
interface modules.
A central point of contact for chassis
management
Preventing newly installed interface modules,
switch fabric modules, and management
modules from receiving power when there is
not enough power available.
Allowing you to prioritize the order in which
modules power off (if there is insufficient power
available).
Allowing you to implement fault-tolerant
power, which allows the chassis to reserve some
of its power capacity to protect against a power
supply failure.
Switch Backplane Architecture
EME Network Management Functions
■
In-Band and Out-of-Band Download — The
EME provides both in-band and out-of-band
downloads. In-band download uses TFTP (Trivial
File Transfer Protocol) through a network
connection. Out-of-band download uses
XMODEM software and the RS-232 serial port on
the front panel of the EME. The EME allows you to
download to multiple modules using a single
command.
■
Web Management Support — You can monitor
and manage the EME through the
CoreBuilder 9000 Web Management suite of
applications.
■
Transcend Network Control Services
Support — You can also monitor and manage the
EME through the 3Com Transcend Network
Control Services.
The EME provides the following management and
control capabilities:
■
Configurations — When you are logged in using
the Administer password, you can configure the
EME and monitor the chassis environment.
■
Inventory — The EME provides a complete
inventory of Switch contents, including fans and
power supplies. The inventory lists current
software revisions for all installed modules. The
inventory system also supports a scratchpad
feature so that you can add custom information to
the EME display.
■
Power Management — With EME commands,
you can manage how the Switch reacts to low
power situations. The Switch can also provide
fault-tolerant power, which protects the Switch
against power supply failures.
■
SNMP Support — SNMP (Simple Network
Management Protocol) is a protocol that the
Internet Engineering Task Force defined. The EME
acts as an agent in an SNMP-managed
environment. The agent responds to SNMP
requests and generates SNMP traps.
■
Telnet Support — With the EME telnet
command, you can connect an EME to any other
Telnet device. The EME also supports incoming
Telnet sessions so that you can manage an EME
from a workstation with Telnet support or from
another EME.
25
Switch Backplane Architecture
The backplane of the CoreBuilder 9000 8-slot
Enterprise Switch incorporates 280 Gbps of
bandwidth capacity in a passive and redundant
design. The backplane uses a dual, star-wired
interconnect scheme to connect each payload slot to
the primary and backup switch fabric module.
The backplane of the CoreBuilder 9000 8-slot
Enterprise Switch is constructed from a non-blocking,
passive, fully redundant design.
Five of these links (5 traces, each 2 Gbps) are
star-wired to each of the slots for the switch fabric
CHAPTER 2: COREBUILDER 9000 ENTERPRISE SWITCH 8-SLOT C HASSIS
26
modules, providing five primary and five redundant
high-speed links for each interface module.
■
System communications channels — The
management system uses two types of busses to
communicate with other modules in the Switch:
The backplane:
■
■
Supports two slots for switch fabric modules.
■
Supports automatic configuration detection.
■
Provides central clock distribution.
Backplane Connector Architecture
The backplane connector provides easy access to all
the services from the CoreBuilder 9000, including two
10-Mbps MLAN (Management LAN) channels, one
UART channel, a number of system clocks, and the
SCI (Serial Communication Interface) communications
channel.
The backplane connector consists of the:
■
Common signals bus — The common signals bus
consists of all the signals that are used for
system-wide functions. These include power
supply monitoring and control, backplane reset,
system clock signals, and an LED test signal.
■
Power delivery — The power delivery connector
provides the following voltage: +2V, +3.5V, +5V,
+12V, -5V, and -12V.
■
Serial Communication Interface (SCI) — The
SCI bus serves as a communications path
between management modules.
Management LANs — The MLANs are
high-speed management busses that provide
intermodule communication and network
connectivity to the System Management
Component (SMC). Each MLAN runs at
10 Mbps.
A power management channel informs the Switch of
the power requirements for all modules. If the EME
determines that there is not enough power in the
Switch for that module, then the module does not
power on.
The connector in the slots for the switch fabric
modules is a 948-pin version of the internetworking
connector. This connector supports connections up to
70 high-speed, full-duplex, serial links on the
backplane and all the other chassis services that are
available to the switch fabric modules.
Interface modules and switch fabric modules access
Switch services through connectors to the backplane.
Hardware Components
Hardware Components
This section describes the following chassis
components:
■
27
The power supplies are load sharing in that all power
supplies provide an equal amount of the load current.
■
820-watt AC
Each 820-watt power supply (Figure 10) has its own
power cord and is shipped separately from the
chassis. The type of power cord depends on your
country location.
■
–48-volt DC
Figure 10 CoreBuilder 9000 820-watt AC Power Supply
Power Supplies
■
Fan Trays
■
Modules
Power Supplies
The CoreBuilder 9000 8-slot chassis can contain three
front-loading, 820-watt, modular AC power supplies
(Model Number 3CB9EP8) or three –48-volt DC
power supplies (Model Number 3CB9EP8D). The
power supplies provide power to the management
modules, switch fabric modules, interface modules,
fans, and backplane.
You can add or replace power supplies while the
chassis is running (referred to as warm swapping). See
Chapter 8 “Maintenance for the 8-Slot Chassis and
16-Slot Chassis” for instructions about how to
replace a faulty power supply.
820-watt AC Power Supply
CoreBuilder 9000 power supplies are autosensing.
Each power supply (Figure 10) can automatically
sense the type of input voltage to which it is being
connected at the electrical outlet.
Handle
Power cord
socket
On/off
switch
Spring-loaded
screw
28
CHAPTER 2: COREBUILDER 9000 ENTERPRISE SWITCH 8-SLOT C HASSIS
Figure 11 shows an 820-watt AC power supply in a
CoreBuilder 9000 8-slot chassis.
Figure 11 CoreBuilder 9000 8-slot Chassis with an 820-watt
AC Power Supply Installed
Power supply
slot 3
®
CoreBuilder 9000
R
1
2
3
4
5
6
7
8
9
–48-volt DC Power Supply
The –48-volt DC power supply (Model Number
3CB9EP8D) (Figure 12) is a DC version of the
820-watt AC power supply and provides the identical
power output of the 3CB9EP8 power supply. Each
–48-volt DC power supply has its own connector. The
type of cable that you use depends on your
configuration.
Figure 12 CoreBuilder 9000 –48-volt DC Power Supply
10
Handle
ON
ON
DC input
connector
Power supply
(in slot 1)
Power supply
slot 2
-48V
Standby/On
switch
0V
STANDBY
INPUT RATING
-48 V
/27A
Spring-loaded
screw
Hardware Components
Figure 13 shows a –48-volt DC power supply in a
CoreBuilder 9000 8-slot chassis.
Figure 13 CoreBuilder 9000 8-slot Chassis with a –48-volt DC
Power Supply Installed
Power supply
slot 3
29
Fan Trays
The CoreBuilder 9000 8-slot chassis contains two fan
trays, each of which contains three fans (Model
Number 3CB9EF). Four fans cool the interface
modules, switch fabric modules, and management
modules. The remaining two fans cool the power
supplies.
Figure 14 shows the location of the fan trays in the
CoreBuilder 8-slot chassis.
®
CoreBuilder 9000
R
1
2
3
4
5
6
7
8
9
Figure 14 CoreBuilder 9000 8-slot Chassis Rear View with
Fan Trays
10
Module and
power supply
fan trays
ON
-48V
0V
STANDBY
INPUT RATING
-48 V
/27A
Power supply
(in slot 1)
Power supply
slot 2
Spring-loaded
screw
CHAPTER 2: COREBUILDER 9000 ENTERPRISE SWITCH 8-SLOT C HASSIS
30
Modules
■
You insert modules vertically into the 8-slot chassis.
Slots are numbered from left to right, with the left
slot being number 1.
Switch fabric — There are two slots (slot 7 and
slot 8) for switch fabric modules. You can select
one or the other of the modules. You cannot mix
one type of module with the other type of module.
■
The 8-slot chassis can contain the following modules:
■
■
■
The Gigabit Ethernet (GEN) Switch Fabric
Module is the central backplane aggregator for
the Switch.
Management — There are two slots (slot 9 and
slot 10) for management modules:
■
The Enterprise Management Engine (EME) is
an SNMP-based network management module
that manages and controls the
CoreBuilder 9000 Enterprise Switch and its
modules. The EME is the primary
communication mechanism into the Switch
and modules. You manage other intelligent
modules within the chassis through the EME.
The Enterprise Management Controller (EMC)
module provides standby controller functions
for an EME in a CoreBuilder 9000 Enterprise
Switch.
Interface — There are six slots (slot 1 through
slot 6) for interface modules. The interface
modules offer a selection of packet-based and
cell-based interfaces that work with the switch
fabric modules.
Gigabit Ethernet Switch Fabric Modules
■
ATM Switch Fabric Modules
The ATM Switch Fabric Module is the core cell
switching engine of the CoreBuilder 9000 ATM
Enterprise Switch. This module controls and
monitors passive backplane and ATM activity.
COREBUILDER 9000 ENTERPRISE SWITCH
16-SLOT CHASSIS
3
This chapter contains an overview of 3Com’s
CoreBuilder® 9000 Enterprise Switch 16-slot chassis.
The 16-slot chassis contains:
■
Three fan trays, each with three fans.
The topics in this chapter include:
■
A power supply bay that holds up to four power
supplies and facilitates load sharing and
redundancy.
■
Two slots for management modules.
■
A payload bay with slots for:
■
Overview
■
Switch Features
■
Management Features
■
Switch Backplane Architecture
■
Hardware Components
Overview
The CoreBuilder 9000 Enterprise Switch 16-slot
chassis (Model Number 3CB9E16) is a
high-performance switch that consists of:
■
A chassis.
■
A power subsystem.
■
A combination of switch fabric modules and
interface modules that form a network
infrastructure.
The media and internetworking backplane and the
power distribution function are physically located on
a single backplane unit.
■
Fourteen interface modules.
■
Two switch fabric modules.
Figure 15 and Figure 16 show the front and the rear,
respectively, of the CoreBuilder 9000 Enterprise
Switch 16-slot chassis.
CHAPTER 3: COREBUILDER 9000 ENTERPRISE SWITCH 16-SLOT CHASSIS
32
Figure 15 CoreBuilder 9000 16-slot Chassis Front View
Interface
module
slots
2
Fan trays for
interface modules
and switch fabric
modules
Switch fabric Interface
module
module
slots
slots
®
CoreBuilder 9000
R
1
Figure 16 CoreBuilder 9000 16-slot Chassis Rear View
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Fan tray
for power
supplies and
management
modules
Power supply slots
Management
module slots
Switch Features
Switch Features
■
A single passive backplane that is capable of 70
redundant serial links and that enables the use of
multiple networking technologies, defined by the
type of switch fabric module that is installed
■
Two switch fabric module slots that are centered in
the chassis to provide complete redundancy and
optimal network performance
■
Slots for four power supplies to supply from
820 watts to 2460 watts with n + 1 redundancy
and 3280 watts without n + 1 redundancy,
depending on the type and quantity of installed
modules
■
Power supplies that you can add or replace while
the chassis is running (referred to as warm
swapping)
■
Slots for 14 interface modules
■
Cell or packet switching at an aggregated
bandwidth of up to 280 Gbps (primary and backup
interconnects)
■
Power fault-tolerant mode where you can reserve
the power of a single power supply (820 watts) to
act as a backup if one of the other power supplies
fails
■
Three triple operation exhaust fan trays (with the
power and reliability of nine fans) to make sure
that the chassis maintains the optimal temperature
for operation
The CoreBuilder 9000 16-slot Enterprise Switch has
the following features:
■
An intelligent power management system
■
An intelligent system inventory management
system
■
An integrated, high-performance, distributed
network management system
■
Modules and fan trays that you can install or
remove while the Switch is operating (called hot
swapping), for field upgrades and service
■
Support for 3Com Transcend ® Network Control
Services for UNIX or for Windows
■
Slots for two management modules that do not
take up interface module or switch fabric module
space
You can fill the management module slots with an
Enterprise Management Engine (EME) and an
Enterprise Management Controller (EMC), or with
two EMEs to provide standby management support. You can also run the 16-slot Switch with one
EME installed.
The EME uses the management bus to send commands to all installed interface modules and switch
fabric modules and to collect information from the
modules.
33
CHAPTER 3: COREBUILDER 9000 ENTERPRISE SWITCH 16-SLOT CHASSIS
34
■
Management Features
You can manage the CoreBuilder 9000 Enterprise
Switch through:
■
An out-of-band terminal interface
■
The Simple Network Management Protocol (SNMP)
■
The 3Com Transcend Network Control Services
■
The standard Telnet client-to-server application
■
The 3Com Web Management suite of applications
■
Intelligent Power Management — Works with
the EMC to protect network integrity using power
management. The EME manages power use in the
chassis by:
■
This section contains the following topics:
■
EME Management Architecture
■
EME Network Management Functions
■
■
EME Management Architecture
The Enterprise Management Engine (EME) is the
primary communication mechanism into the 16-slot
chassis and any installed switch fabric modules and
interface modules.
The EME is an SNMP-based network management
module that manages and controls the 3Com
CoreBuilder 9000 chassis and its modules.
Chassis Management Architecture — Provides a
cost-efficient management architecture that:
■
Provides a central point of contact for chassis
management
Preventing newly installed interface modules,
switch fabric modules, and management modules from receiving power when there is not
enough power available.
Allowing you to prioritize the order in which
modules power off (if there is insufficient power
available).
Allowing you to implement fault-tolerant
power, which allows the chassis to reserve some
of its power capacity to protect against a power
supply failure.
EME Network Management Functions
The EME provides the following management and
control capabilities:
■
Configurations — When you are logged in using
the Administer password, you can configure the
EME and monitor the chassis environment.
■
Inventory — The EME provides a complete
inventory of Switch contents, including fans and
power supplies. The inventory lists current
software revisions for all installed modules. The
inventory system also supports a scratchpad
feature so that you can add custom information to
the EME display.
The EME has the following features:
■
Provides Enterprise Management Controller
(EMC) functions, as well as EME functions with
performance enhancements
Switch Backplane Architecture
■
Power Management — With EME commands,
you can manage how the Switch reacts to low
power situations. The Switch can also provide
fault-tolerant power, which protects the Switch
against power supply failures.
■
SNMP Support — SNMP (Simple Network
Management Protocol) is a protocol that the
Internet Engineering Task Force defined. The EME
acts as an agent in an SNMP-managed
environment. The agent responds to SNMP
requests and generates SNMP traps.
■
Telnet Support — With the EME telnet
command, you can connect an EME to any other
Telnet device. The EME also supports incoming
Telnet sessions so that you can manage an EME
from a workstation with Telnet support or from
another EME.
■
In-Band and Out-of-Band Download — The
EME provides both in-band and out-of-band
downloads. In-band download uses TFTP (Trivial
File Transfer Protocol) through a network
connection. Out-of-band download uses
XMODEM software and the RS-232 serial port on
the front panel of the EME. The EME allows you to
download to multiple modules using a single
command.
35
■
Web Management Support — You can monitor
and manage the EME through the
CoreBuilder 9000 Web Management suite of
applications.
■
Transcend Network Control Services
Support — You can also monitor and manage the
EME through the 3Com Transcend Network
Control Services.
Switch Backplane Architecture
The backplane of the CoreBuilder 9000 16-slot
Enterprise Switch incorporates 280 Gbps of
bandwidth capacity in a passive and redundant
design. The backplane uses a dual, star-wired
interconnect scheme to connect each payload slot to
the primary and backup switch fabric module.
The backplane of the CoreBuilder 9000 16-slot
Enterprise Switch is constructed from a non-blocking,
passive, fully redundant design.
Five of these links (5 traces, each 2 Gbps) are
star-wired to each of the slots for the switch fabric
modules, providing five primary and five redundant
high-speed links for each interface module.
The backplane:
■
Supports two slots for switch fabric modules.
■
Supports automatic configuration detection.
■
Provides central clock distribution.
CHAPTER 3: COREBUILDER 9000 ENTERPRISE SWITCH 16-SLOT CHASSIS
36
Backplane Connector Architecture
The backplane connector provides easy access to all
the services from the CoreBuilder 9000, including two
10-Mbps MLAN (Management LAN) channels, one
UART channel, a number of system clocks, and the
SCI (Serial Communication Interface) communications
channel.
Switch for that module, then the module does not
power on.
The connector in the slots for the switch fabric
modules is a 948-pin version of the internetworking
connector. This connector supports connections up to
70 high-speed, full-duplex, serial links on the
backplane and all the other chassis services that are
available to the switch fabric modules.
The backplane connector consists of the:
■
■
■
Common signals bus — The common signals bus
consists of all the signals that are used for
system-wide functions. These include power
supply monitoring and control, backplane reset,
system clock signals, and an LED test signal.
Power delivery — The power delivery connector
provides the following voltage: +2V, +3.5V, +5V,
+12V, -5V, and -12V.
Interface modules and switch fabric modules access
Switch services through connectors to the backplane.
Hardware Components
This section describes the following chassis
components:
■
System communications channels — The
management system uses two types of busses to
communicate with other modules in the Switch:
■
■
Serial Communication Interface (SCI) — The
SCI bus serves as a communications path
between management modules.
Management LANs — The MLANs are
high-speed management busses that provide
intermodule communication and network connectivity to the System Management Component (SMC). Each MLAN runs at 10 Mbps.
A power management channel informs the Switch of
the power requirements for all modules. If the EME
determines that there is not enough power in the
Power Supplies
■
820-watt AC
■
–48-volt DC
■
Fan Trays
■
Modules
Power Supplies
The CoreBuilder 9000 16-slot chassis can contain four
front-loading, 820-watt, modular AC power supplies
(Model Number 3CB9EP8) or four –48-volt DC power
supplies (Model Number 3CB9EP8D). The power
supplies provide power to the management modules,
switch fabric modules, interface modules, fans, and
backplane.
Hardware Components
You can add or replace power supplies while the
chassis is running (referred to as warm swapping). See
Chapter 8, “Maintenance for the 8-Slot Chassis and
16-Slot Chassis” for instructions about how to
replace a faulty power supply.
37
Figure 17 CoreBuilder 9000 820-watt AC Power Supply
820-watt AC Power Supply
CoreBuilder 9000 power supplies are autosensing.
Each power supply (Figure 17) can automatically
sense the type of input voltage to which it is being
connected at the electrical outlet.
The 820-watt AC power supplies are load sharing in
that all power supplies provide an equal amount of
the load current. Each power supply has its own
power cord and is shipped separately from the
chassis. The type of power cord depends on your
country location.
Handle
Power cord
socket
On/off
switch
Spring-loaded
screw
38
CHAPTER 3: COREBUILDER 9000 ENTERPRISE SWITCH 16-SLOT CHASSIS
Figure 18 shows an 820-watt AC power supply in a
CoreBuilder 9000 16-slot chassis.
Figure 18 CoreBuilder 9000 16-slot Chassis with an 820-watt
AC Power Supply Installed
–48-volt DC Power Supply
The –48-volt DC power supply (Model Number
3CB9EP8D) (Figure 19) is a DC version of the
820-watt AC power supply and provides the identical
power output of the 3CB9EP8 power supply. Each
–48-volt DC power supply has its own connector. The
type of cable that you use depends on your
configuration.
Figure 19 CoreBuilder 9000 –48-volt DC Power Supply
Handle
Power supply
(in slot 1)
Power supply
slot 3
Power supply
slot 2
Power supply
slot 4
ON
DC input
connector
-48V
Standby/On
switch
0V
STANDBY
INPUT RATING
-48 V
/27A
Spring-loaded
screw
Hardware Components
Figure 20 shows a –48-volt DC power supply in a
CoreBuilder 9000 16-slot chassis.
Figure 20 CoreBuilder 9000 16-slot Chassis with a –48-volt
DC Power Supply Installed
39
Fan Trays
The CoreBuilder 9000 16-slot chassis contains three
fan trays, each of which contains three fans (Model
Number 3CB9EF). Six fans (two trays) cool the
interface modules and switch fabric modules. Three
fans (one tray) cool the power supplies and
management modules (Figure 21).
Figure 21 CoreBuilder 9000 16-slot Chassis Rear View with
Fan Trays
ON
-48V
0V
STANDBY
Module
fan trays
INPUT RATING
-48 V
/27A
Power supply
(in slot 1)
Power supply
slot 3
Power supply
slot 2
Power supply
slot 4
Spring-loaded
screw
Power supply
and
management
module fan tray
CHAPTER 3: COREBUILDER 9000 ENTERPRISE SWITCH 16-SLOT CHASSIS
40
Modules
■
You insert modules vertically. Slots are numbered from
left to right, with the left slot being number 1.
The 16-slot chassis can contain the following modules:
■
■
■
The Enterprise Management Engine (EME) is
an SNMP-based network management module
that manages and controls the
CoreBuilder 9000 Enterprise Switch and its
modules. The EME is the primary communication mechanism into the Switch and modules.
You manage other intelligent modules within
the chassis through the EME.
The Enterprise Management Controller (EMC)
module provides standby controller functions
for an EME in a CoreBuilder 9000 Enterprise
Switch.
Interface — There are 14 slots (slot 1 through
slot 7 and slot 10 through slot 16) for interface
modules. The interface modules offer a selection
of packet-based and cell-based interfaces that
work with one of the switch fabric modules.
Gigabit Ethernet Switch Fabric Modules
The Gigabit Ethernet (GEN) Switch Fabric
Module is the central backplane aggregator for
the Switch.
Management — There are two slots (slot 17 and
slot 18) for management modules:
■
■
Switch fabric — There are two slots (slot 8 and
slot 9) for switch fabric modules. You can select
one or the other of the modules. You cannot mix
one type of module with the other type of module.
■
ATM Switch Fabric Modules
The ATM Switch Fabric Module is the core cell
switching engine of the CoreBuilder 9000 ATM
Enterprise Switch. This module controls and
monitors passive backplane and ATM activity.
For more information about modules for the
CoreBuilder 9000 chassis, see Chapter 4.
COREBUILDER 9000 ENTERPRISE SWITCH
MODULES
4
The CoreBuilder® 9000 Enterprise Switch is a high
performance, high-density, campus switch. There are
three CoreBuilder 9000 chassis:
■
7-slot
■
8-slot
■
16-slot
The 7-slot chassis contains slots for the following
types of modules:
■
One switch fabric module
■
Two management modules
■
Six interface modules
The 8-slot chassis contains slots for the following
types of modules:
■
Two switch fabric modules
■
Two management modules
■
Six interface modules
The 16-slot chassis contains slots for the following
types of modules:
■
Two switch fabric modules
■
Two management modules
■
Fourteen interface modules
Each CoreBuilder 9000 Enterprise Switch is required
to have a minimum of one EME (Enterprise
Management Engine) (Model Number 3CB9EME).
You can install one EMC (Enterprise Management
Controller) (Model Number 3CB9EMC) or a second
EME in place of the EMC for redundant management
operation.
This chapter contains the following topics:
■
Switch Fabric Modules
■
Management Modules
■
Interface Modules
■
Slot Restrictions
■
Management Access
■
Where to Go from Here
In the CoreBuilder 9000 Enterprise Switch:
■
The Gigabit Ethernet (GEN) switch fabric module is
the central backplane aggregator for the
CoreBuilder 9000 Enterprise Switch 7-slot chassis,
8-slot chassis, and 16-slot chassis. The GEN switch
fabric module has 24 non-blocking Gigabit
Ethernet ports on the backplane for high-speed,
low-latency interconnectivity between
CoreBuilder 9000 interface modules.
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
42
■
The ATM switch fabric module is the core cell
switching engine of the CoreBuilder 9000 ATM
Enterprise Switch, controlling and monitoring
passive backplane and ATM activity.
■
The EME management module exchanges
information with all modules through the
management bus.
The EME uses the management bus to send
commands to all chassis modules and to collect
information from interface modules.
■
Interface modules pass data through the switch
fabric module. The data may get sent back out to
other modules or sent out through a switch fabric
module front panel port to another device.
Switch Fabric Modules
Switch fabric modules fit into the CoreBuilder 9000
chassis. The scalable design of the CoreBuilder 9000
platform provides the Switch with the highest
bandwidths.
You can select the switch fabric module based on
technology:
■
Gigabit Ethernet, packet-based interface —
This high-performance, packet switch fabric
module has an initial aggregate switching capacity
of 48 Gbps.
■
ATM, cell-based interface — The ATM Switch
Fabric Module has an initial aggregate switching
capacity of 30 Gbps.
The CoreBuilder 9000 7-slot chassis contains one slot
(slot 7) for a switch fabric module. The 7-slot chassis
is shipped with slot 7 open and not covered by a
blank faceplate.
The CoreBuilder 9000 8-slot chassis contains two
slots (slot 7 and slot 8) for switch fabric modules. The
8-slot chassis is shipped with slot 7 open and not
covered by a blank faceplate; slot 8 is covered with a
blank faceplate. You usually install the first switch
fabric module in slot 7.
The CoreBuilder 9000 16-slot chassis contains two
slots (slot 8 and slot 9) for switch fabric modules. The
16-slot chassis is shipped with slot 8 open and not
covered by a blank faceplate; slot 9 is covered with a
blank faceplate. You usually install the first switch
fabric module in slot 8.
Switch Fabric Modules
Gigabit Ethernet Switch Fabric Modules
The following Gigabit Ethernet switch fabric modules
operate in the CoreBuilder 9000 Enterprise Switch:
■
■
43
The GEN Switch Fabric Module supports the following
key features:
■
48 Gbps switching capacity
The Gigabit Ethernet (GEN) Switch Fabric Module
(Model Number 3CB9FG24T) is a central
backplane aggregator for the CoreBuilder 9000
Enterprise Switch. The GEN Switch Fabric Module
has 24 non-blocking Gigabit Ethernet ports that
connect to the chassis backplane to provide
high-speed, low-latency connectivity between
CoreBuilder 9000 interface modules.
■
Redundant operation when two identical GEN
Switch Fabric Modules are installed (8-slot chassis
and 16-slot chassis)
■
Hot-swapping of modules
■
IEEE 802.1D Spanning Tree Protocol bridging for
Gigabit Ethernet
■
Multicast packet firewall to limit broadcast storms
The 9-port Gigabit Ethernet Switch Fabric Module
(Model Number 3CB9FG9) is a switch fabric
module that is optimized for the CoreBuilder 9000
7-slot chassis and 8-slot chassis. The 9-port Gigabit
Ethernet Switch Fabric Module has
six non-blocking Gigabit Ethernet ports that
connect directly to the chassis backplane to
provide high-speed, low-latency connectivity
between CoreBuilder 9000 interface modules. It
also features three Gigabit Interface Connector
(GBIC) interface ports located on the front panel
that accept optional GBIC transceivers. These GBIC
transceivers provide Gigabit Ethernet downlinks
into the chassis. You can install the 9-port Switch
Fabric Module in either the 7-slot chassis or the
8-slot chassis.
■
Port trunking support for 12 groups, with up to six
ports in a group
■
IEEE 802.1Q VLAN tagging for up to 126 groups of
port-based virtual LANs (VLANs)
■
Embedded Simple Network Management Protocol
(SNMP) management agent
■
Support for four RMON-1 groups: Ethernet
Statistics, History, Events, and Alarms
■
Management using the CoreBuilder 9000
Administration Console (a command line
interface), through the Web Management suite of
applications, or from Simple Network
Management Protocol (SNMP) applications by
connecting through the Gigabit Ethernet Switch
Fabric Module
For information about how to install the GEN Switch
Fabric Module, see the Gigabit Ethernet Switch Fabric
Module Quick Start Guide for the CoreBuilder 9000
Enterprise Switch.
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
44
ATM Switch Fabric Module
The CoreBuilder 9000 ATM Enterprise Switch ATM
switch fabric module supports enterprise backbones
and high-density data center applications. It can
switch up to 15 Gbps full-duplex of cell traffic and
provides non-blocking throughput on all interfaces.
The module supports up to 22 OC-12c/STM-4
622-Mbps ATM ports per chassis, up to
44 OC-3c/STM-1 Single-Mode Long Reach ports, and
up to 88 OC-3c/STM-1 155-Mbps SONET/SDH ports
per chassis.
The ATM switch fabric module is a high-performance
ATM switch that is designed to increase the capacity
and manageability of enterprise networks. The
line-rate, non-blocking ATM Switch Fabric module
features highly integrated ASICs that account for its
scalable, leading-edge performance and functionality.
The ATM switch fabric module supports the following
features:
■
Initial ATM switch fabric capacity: 15 Gbps
■
Maximum capacity: 70 Gbps
■
Hot-swappable components
■
Multiple management polling
■
Distributed management agents
■
Load-sharing links
■
Resilient links/Spanning Tree
■
Automatic link fail-over
■
Autonegotiation
■
Multiple VLAN (virtual LAN) modes
■
Layer 3 OSPF (Open Shortest Path First)
■
Port Densities
■
Initial OC-3c/STM-1 ports: 88
■
Maximum OC-3c/STM-1 ports: 280
■
Initial OC-12c/STM-4 MM ports: 22
■
Initial OC-12c/STM-4 SM ports: 22
■
Maximum OC-12c/STM-4 ports: 112
■
Maximum OC-48 ports: 28
■
Bandwidth management/congestion control
(EPD/PPD, CLP support)
■
QoS/CoS: UBR, ABR, VBR, CBR, 802.1P, FIRE-based
flow control
■
ATM Forum LANE 1.0 and 2.0 Clients and Services
■
VLANs, LANE-based ELANs, 802.1Q
■
Broadcast and Multicast control: IGMP, LANE 2
■
PVC, S-PVC, SVC, UNI 3.0/3.1/4.0
For information about how to install the ATM switch
fabric module, see the CoreBuilder 9000 ATM Switch
Fabric Module Getting Started Guide.
Switch Fabric Modules
Redundant Operation in the 8-slot Chassis and
16-slot Chassis
You can install two switch fabric modules in an 8-slot
chassis and a 16-slot chassis to provide redundancy
for the CoreBuilder 9000 Enterprise Switch. The
secondary (standby) switch fabric module mirrors all
configuration and operation parameters of the
primary (active) switch fabric module. If a problem
occurs with the primary module, the system software
immediately switches to the secondary module,
keeping the network up and running.
A switch fabric module becomes the primary switch
under the following conditions:
■
It is the only switch fabric module in the chassis.
■
It has a lower slot number, and the other switch
fabric module is not primary or is in a primary
transition state.
■
The original primary switch fabric module fails.
A second switch fabric module becomes the
secondary switch under the following conditions:
■
The other switch fabric module is already the
primary switch.
■
The other switch fabric module is installed in the
lower slot of the chassis.
45
For the 8-slot chassis, you must install a switch fabric
module in the specific slot in which all switch port
connections meet. In the CoreBuilder 9000 Enterprise
Switch 8-slot chassis, slot 7 and slot 8 are dedicated
to the Gigabit Ethernet or ATM switch fabric module;
slot 7 holds the active module and slot 8 holds the
redundant module. The switch fabric module provides
connectivity between several groups of ports
simultaneously.
For the 16-slot chassis, you must install a switch fabric
module in the specific slot in which all switch port
connections meet.
In the CoreBuilder 9000 Enterprise Switch 16-slot
chassis, slot 8 and slot 9 are dedicated to the Gigabit
Ethernet or ATM switch fabric module; slot 8 holds
the active module and slot 9 holds the redundant
module. The switch fabric module provides
connectivity between several groups of ports
simultaneously.
After you reset the chassis, the switch fabric module
in slot 8 of the 8-slot chassis and in slot 9 of the
16-slot chassis becomes the primary switch fabric
module.
Because Gigabit Ethernet switch fabric modules and
ATM switch fabric modules are the core switching
engine of the CoreBuilder 9000 Enterprise Switch,
they require priority for power and management. The
modules control and monitor passive backplane,
Gigabit Ethernet, and ATM activity.
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
46
The switch fabric modules connect to every interface
module slot in the chassis and provide the
interconnection between interface modules.
The interface modules may have front panel ports or
have an out-of-band Ethernet port.
For detailed information about the GEN Switch Fabric
Module, see the Gigabit Ethernet Switch Fabric
Module Quick Start Guide for the CoreBuilder 9000
Enterprise Switch.
For detailed information about the ATM switch fabric
module, see the CoreBuilder 9000 ATM Switch Fabric
Module Getting Started Guide.
Management Modules
The CoreBuilder 9000 7-slot chassis, 8-slot chassis,
and 16-slot chassis contain two slots for these
management modules:
■
Enterprise Management Engine (EME)
■
Enterprise Management Controller (EMC)
These modules do not occupy module payload slots.
Table 3 lists the slots that the management modules
occupy in each of the CoreBuilder 9000 chassis.
Table 3 CoreBuilder 9000 Management Module Slots
.
Chassis
Management Module Slots
7-slot
8 and 9
8-slot
9 and 10
16-slot
17 and 18
You can communicate through an RS-232 connector
(for connection to a terminal) or an RJ-45 port (for
connection to Ethernet networks) on the front panel
of the EME to configure and report on Switch and
module operation.
The EME backplane services generate, control, and
monitor the Switch. The management modules
provide power management functions.
Enterprise Management Engine (EME)
The 3Com CoreBuilder 9000 EME is an SNMP-based
network management module that allows you to
configure and manage the 3Com CoreBuilder 9000
Enterprise Switch (chassis and modules).
■
You manage the Switch through the EME
command interface, which you access through the
serial port, or through SNMP (Simple Network
Management Protocol).
■
You can monitor and manage the EME through
the CoreBuilder 9000 Web Management suite of
applications.
■
You can monitor and manage the EME through
the 3Com Transcend Network Control Services.
An EME combines the functions of a management
module and a controller module. You can install a
second EME in the 7-slot chassis, 8-slot chassis and
16-slot chassis to provide standby management
support if the first EME is unavailable for any reason.
Or, you can install an Enterprise Management
Controller (EMC) instead of a second EME for standby
controller support.
Interface Modules
Table 4 describes the EME access mechanisms.
Table 4 EME Access Mechanisms
.
Access
Mechanism
Allows you to
Using
Terminal
Connect directly to the
command interface.
RS-232 serial
port
Modem
Access the command
interface from remote
sites.
Auxiliary RS-232
serial port
IP
Access the command
interface using the
rlogin or telnet
commands. Or use an
external SNMP
management
application to
communicate with the
CoreBuilder® SNMP
agent.
10BASE-T
Ethernet port
assigned to an IP
interface
The EME contains the following software
components:
■
System Controller Component (SCC), which
supports Switch monitoring, module inventory
management, and power management.
■
System Management Component (SMC), which is
the central network management agent and
provides network management operations within
the Switch.
For information about how to install the EME and
how to perform an initial configuration, see the
Enterprise Management Engine Quick Start Guide for
the CoreBuilder 9000 Enterprise Switch.
47
Enterprise Management Controller (EMC)
The 3Com CoreBuilder 9000 EMC module provides
standby controller functions for an EME in a
CoreBuilder 9000 7-slot chassis, 8-slot chassis, and
16-slot chassis. The EMC maintains Switch operation
in the event of an SMC failure.
For information about how to install the EMC, see the
Enterprise Management Controller Quick Start Guide
for the CoreBuilder 9000 Enterprise Switch.
Interface Modules
The CoreBuilder 9000 7-slot Switch contains six slots
for interface modules. Fast Ethernet modules, Gigabit
Ethernet modules, or ATM modules can occupy every
slot, except slot 7, in the 7-slot chassis. The
six interface modules in the 7-slot Switch access five
2 Gbps serial channels, which are wired to one
dedicated switch fabric module slot.
The 8-slot Switch contains six slots for interface
modules. Fast Ethernet modules, Gigabit Ethernet
modules, or ATM modules can occupy every slot,
except slot 7 and slot 8, in the 8-slot chassis. The
six interface modules in the 8-slot Switch access five 2
Gbps serial channels, which are wired to two
dedicated switch fabric module slots.
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
48
The CoreBuilder 9000 16-slot Switch contains 14 slots
for interface modules. Fast Ethernet modules, Gigabit
Ethernet modules, or ATM modules can occupy every
slot, except slot 8 and slot 9, in the 16-slot chassis.
The 14 interface modules in the 16-slot Switch access
five 2 Gbps serial channels, which are star-wired to
two dedicated switch fabric module slots.
There are two types of CoreBuilder 9000 interface
modules. Interface modules provide network
connectivity functions.
The module families are associated with the
corresponding choice of a switch fabric module
technology: Gigabit Ethernet or ATM.
■
■
Frame-based interface modules — Support
10/100 Fast Ethernet and Gigabit Ethernet. The
following interface modules are supported:
■
Fast Ethernet Switching Modules
■
Gigabit Ethernet Interface Modules
Cell-based interface modules — Support ATM
switching and frame-based Fast Ethernet and
Gigabit Ethernet (GEN) switching.
You cannot mix ATM modules and Ethernet modules
in the same chassis.
Fast Ethernet Switching Modules
The frame-based switching modules are intelligent
Layer 2 and Layer 3 modules that have their own
embedded agent. These modules are physically
connected to the backplane ports of the switch fabric
module in the chassis. These modules switch between
the front panel ports and the backplane ports.
Switching interface modules provide network
connectivity functions.
The following Layer 2 switching modules are
designed for the CoreBuilder 9000 7-slot chassis,
8-slot chassis, and 16-slot chassis:
■
The 10-port 100BASE-FX Fast Ethernet Layer 2
Switching Module (Model Number 3CB9LF10MC)
has ten 100 Mbps Ethernet fiber-optic front panel
ports. These ports interface to two 1-Gigabit
non-blocking ports on the backplane.
■
The 20-port 10/100BASE-TX Fast Ethernet Layer 2
Switching Module (Model Number 3CB9LF20R)
has twenty 10/100 Mbps RJ-45 front panel ports.
These ports interface to a maximum of two
1-Gigabit non-blocking ports on the backplane.
■
The 36-port 10/100BASE-TX Fast Ethernet Telco
Layer 2 Switching Module (Model
Number 3CB9LF36T) has thirty-six 10/100 Mbps
Telco front panel ports. These ports interface to a
maximum of two 1–Gigabit non-blocking ports on
the backplane.
The cell-based interface modules are available in:
■
■
■
■
OC-3c/STM-1, 4-port
OC-3c/STM-1, 3-port multi-mode and 1-port
single-mode
OC-12c/STM-4, 1-port (single-mode or
multi-mode)
155 Mbps-over-UTP5, 4-port
Interface Modules
■
The 36-port 10/100BASE-TX Fast Ethernet RJ-45
Layer 2 Switching Module (Model
Number 3CB9LF36R) has thirty-six 10/100 Mbps
RJ-45 front panel ports. These ports interface to a
maximum of two 1–Gigabit non-blocking ports on
the backplane.
■
The 20-port 100BASE-FX (MT-RJ) Fast Ethernet
Layer 2 Switching Module (Model
Number 3CB9LF20MM) has twenty 100 Mbps
Ethernet fiber-optic ports with MT-RJ connectors
on its front panel and two 1-Gigabit ports on
the back for connection to the chassis
backplane.
The following Layer 3 router switching modules are
designed for the CoreBuilder 9000 7-slot chassis,
8-slot chassis, and 16-slot chassis:
■
■
The 12-port 10/100BASE-TX Fast Ethernet Layer 3
Module (multiprotocol module) (Model
Number 3CB9RF12R) has twelve 10/100BASE-TX
Fast Ethernet front panel ports that provide a
100 Mbps connection over UTP-Category 5 cables
with lengths up to 100 meters (328 ft.). These
ports interface to one Gigabit Ethernet
non-blocking port that connects through the
backplane to the switch fabric module.
The 10-port 100BASE-FX Fast Ethernet Layer 3
Module (multiprotocol module) (Model
Number 3CB9RF10MC) has 10 front-panel
external ports of full-duplex 100BASE-FX, using SC
(Subscriber Connector) connectors over MMF
(multi-mode fiber). These ports interface to one
Gigabit Ethernet (GEN) port that connects to the
backplane.
49
■
The 6-port SAS (3-port DAS) FDDI Layer 3
Switching Module (Model Number 3CB9RD6MC)
has six ports with Subscriber Connectors (SC) on
the front panel that provide up to six Single
Attached Station (SAS) connections or up to three
Dual Attached Station (DAS) connections with
either single mode fiber or multimode fiber. One
Gigabit Ethernet port connects the module to the
chassis backplane.
■
The 4-port GBIC Gigabit Ethernet Layer 3
Switching Module (Model Number 3CB9RG4) has
four Gigabit Ethernet Interface Converter (GBIC)
front panel ports, which interface to four Gigabit
Ethernet backplane ports. The 4-Port Gigabit
Ethernet Layer 3 Switching Module includes its
own embedded management agent that supports
standard Simple Network Management Protocol
(SNMP) Management Information Bases (MIBs).
For information about how to install these modules,
see the module’s Quick Start Guide that is shipped
with each module.
Gigabit Ethernet Interface Modules
The Gigabit Ethernet (GEN) Interface Modules are
two-port interface modules for the 3Com
CoreBuilder 9000 Enterprise Switch. The GEN
interface modules serve as a 2–Gigabit data channel
between the Gigabit Ethernet Switch Fabric Module
and other 802.3z–compliant Gigabit Ethernet
devices. GEN Interface Modules use SC connectors.
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
50
Gigabit Ethernet Interface Modules are available in
these port configurations:
■
The 2-port 1000BASE-SX Gigabit Ethernet
Interface Module (Model Number 3CB9LG2MC).
Ports on this module use an 850-nanometer,
multimode, optical transceiver (black).
■
The 2-port 1000BASE-LX Gigabit Ethernet
Interface Module (Model Number 3CB9LG2SC).
Ports on this module use a 1300-nanometer,
multimode/single-mode, optical transceiver (blue).
■
■
The 4-Port GBIC Gigabit Ethernet Interface Module
(Model Number 3CB9LG4), supports 1000BASE-LX
and 1000BASE-SX Gigabit Interface Converter
(GBIC) transceivers.
The 9-Port 1000BASE-SX Gigabit Ethernet Layer 2
Switching Module (Model Number 3CB9LG9MC)
has nine 1000BASE-SX Gigabit Ethernet front
panel ports, which interface to backplane ports in
the CoreBuilder 9000 Enterprise Switch.
The Gigabit Ethernet interface modules support the
following key features:
■
■
Two front panel 802.3z–compliant Gigabit
Ethernet fiber-optic ports that connect to a
dedicated, non-blocking, redundant Gigabit
Ethernet backplane channel
Management using the CoreBuilder 9000
Administration Console (a command line
interface), through the Web Management suite of
applications, or from Simple Network
Management Protocol (SNMP) applications by
connecting through the Gigabit Ethernet Switch
Fabric Module
Because Gigabit Ethernet interface modules are not
intelligent, you cannot access them directly; all
communication takes place through the switch fabric
module. GEN interface modules serve as a
two-Gigabit data channel between the GEN Switch
Fabric Module and other 802.3z-compliant Ethernet
devices.
For information about how to install these modules,
see the module’s Quick Start Guide that is shipped
with each module.
ATM Interface Modules
The ATM Interface Module is a high-performance
ATM switch that is designed to increase the capacity
and manageability of enterprise networks. It allows
you to scale performance to extremely high levels as
your network grows and evolves.
The ATM Interface Module supports demanding
enterprise backbones and high-density data center
applications, providing high-performance ATM
switching at both the network core and boundary. It
can switch up to 15 Gbps of cell traffic and provides
non-blocking throughput on all interfaces.
For information about how to install this module, see
the CoreBuilder 9000 ATM Interface Module Getting
Started Guide.
Slot Restrictions
Slot Restrictions
51
Management Access
Table 5 lists slot restrictions in the CoreBuilder 9000
7-slot chassis.
You can access and manage your modules using
several methods:
Table 5 CoreBuilder 9000 7-slot Chassis Slot Restrictions
■
The Administration Console
Module type
Slot number
■
The Web Management suite of applications
Management modules
8 and 9
■
An external SNMP-based network management
application such as 3Com’s Transcend® Network
Control Services
Switch fabric module
7
Interface modules
1, 2, 3, 4, 5, 6
Table 6 lists slot restrictions in the CoreBuilder 9000
8-slot chassis.
The Administration Console and most of Web
Management are embedded parts of the software
and are available for immediate use to manage your
modules.
Table 6 CoreBuilder 9000 8-slot Chassis Slot Restrictions
Module type
Slot number
Management modules
9 and 10
Active switch fabric module
7
Standby switch fabric module
8
Interface modules
1, 2, 3, 4, 5, 6
Table 7 lists slot restrictions in the CoreBuilder 9000
16-slot chassis.
Table 7 CoreBuilder 9000 16-slot Chassis Slot Restrictions
Module type
Slot number
Management modules
17 and 18
Active switch fabric module
8
Standby switch fabric module
9
Interface modules
1, 2, 3, 4, 5, 6, 7, 10,
11, 12, 13, 14, 15, 16
Administration Console Access
To manage the module from the Administration
Console:
1 Log in to the EME.
For information about logging in to the EME, see the
CoreBuilder 9000 Enterprise Management Engine
User Guide.
2 At the prompt, enter:
connect <slot>.1
Where <slot> is the chassis slot number of the
module that you want to manage, and the number
after the decimal point is a subslot number (which is
always 1).
52
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
The Administration Console displays the top-level
menu prompt. For example, if you installed a 20-port
100BASE-FX Fast Ethernet Switching Module in slot
4, then the prompt appears as follows:
[email protected] [20-E/FEN-FX-L2] ():
3 Enter commands to manage the module.
For additional information about Web Management,
see the Web Management User Guide for the
CoreBuilder 9000 Enterprise Switch.
Where to Go from Here
For more information about CoreBuilder 9000:
For example, to display a module baseline, enter:
■
module baseline display
For more information about Administration Console
module commands, see the multiplatform Command
Reference Guide.
Management modules, see the following
documents:
■
■
Web Management Access
Web Management applications are an embedded
part of the Switch. They include Web Console,
DeviceView, and Performance monitoring tools.
Additional installable applications include online Help.
After you have set up your IP address for the Switch,
you can access the Web Management applications
directly in your Web browser by entering the IP
address. For information about setting up your IP
address, see the Enterprise Management Engine
Quick Start Guide for the CoreBuilder 9000 Enterprise
Switch.
■
CoreBuilder 9000 Enterprise Management
Engine User Guide
Enterprise Management Engine Quick Start
Guide for the CoreBuilder 9000 Enterprise
Switch
Enterprise Management Controller Quick Start
Guide for the CoreBuilder 9000 Enterprise
Switch
Where to Go from Here
■
Interface modules, see the following documents:
■
■
■
■
■
■
■
■
■
■
10-Port 100BASE-FX and 20-Port
10/100BASE-TX Fast Ethernet Layer 2 Switching
Modules Quick Start Guide for the
CoreBuilder 9000 Enterprise Switch
12-Port 10/100BASE-TX Fast Ethernet Layer 3
Switching Module Quick Start Guide for the
CoreBuilder 9000 Enterprise Switch
■
■
■
10-Port 100BASE-FX Fast Ethernet Layer 3
Switching Module Quick Start Guide for the
CoreBuilder 9000 Enterprise Switch
■
4-Port GBIC Gigabit Ethernet Layer 3 Switching
Module Quick Start Guide for the
CoreBuilder 9000 Enterprise Switch
■
36-Port 10/100BASE-TX Fast Ethernet RJ-45
Layer 2 Switching Module Quick Start Guide for
the CoreBuilder 9000 Enterprise Switch
36-Port 10/100BASE-TX Fast Ethernet Telco
Layer 2 Switching Module Quick Start Guide for
the CoreBuilder 9000 Enterprise Switch
2-Port 1000BASE-SX and 1000BASE-LX Gigabit
Ethernet Interface Modules Quick Start Guide
for the CoreBuilder 9000 Enterprise Switch
20-Port 100BASE-FX (MT-RJ) Fast Ethernet
Layer 2 Switching Module Quick Start Guide for
the CoreBuilder 9000 Enterprise Switch
■
■
■
9-port 1000BASE-SX Gigabit Ethernet Layer 2
Switching Module Quick Start Guide for the
CoreBuilder 9000 Enterprise Switch
CoreBuilder 9000 ATM Interface Module User
Guide
CoreBuilder 9000 ATM Interface Module
Getting Started Guide
Switch fabric modules, see the following
documents:
■
6-Port SAS (3-Port DAS) FDDI Layer 3 Switching
Module Quick Start Guide for the CoreBuilder
9000 Enterprise Switch
53
Gigabit Ethernet Switch Fabric Module Quick
Start Guide for the CoreBuilder 9000 Enterprise
Switch
9-port Gigabit Ethernet Switch Fabric Module
Quick Start Guide for the CoreBuilder 9000
Enterprise Switch
CoreBuilder 9000 ATM Enterprise Switch
Management Guide
CoreBuilder 9000 ATM Enterprise Switch
Operations Guide
CoreBuilder 9000 ATM Switch Fabric Module
Getting Started Guide
Commands, see the following documents:
■
Command Reference Guide
■
CoreBuilder 9000 Implementation Guide
54
CHAPTER 4: COREBUILDER 9000 ENTERPRISE SWITCH MODULES
5
START THE SWITCH
This chapter summarizes what happens when you
power on your CoreBuilder® 9000 Enterprise Switch
after you have installed all the Switch components.
Before you power on the Switch, review the setup
tasks (Figure 22 for the 7-slot chassis and Figure 23
for the 8-slot chassis and the 16-slot chassis) and
make certain that all the tasks have been performed.
Power On the Switch
1 Attach the power supply cables to the connections on
the Switch.
What Occurs During Startup
After you turn on the power switch, the following
occurs:
■
The power supplies begin operating.
■
The fans start rotating.
■
The Enterprise Management Engine LEDs blink
green.
Table 8 shows the sequence of characters that appear
on the EME LED character display during a Switch
power-on.
2 Plug the power cord into the electrical socket.
3 Turn on the power switch.
4 Watch the LEDs on installed modules
To verify that the CoreBuilder 9000 Enterprise Switch
modules have been installed correctly, examine the
LED status on each module. To obtain information
about a module’s LEDs and status indicators, see the
User Guide, Getting Started Guide, or Quick Start
Guide specific to that module.
Table 8 The EME LED Character Display During Power-on
Characters in Display Indication
random characters
Power-on has begun.
none (blank display)
Power-on continues.
Diag
The EME is running self-diagnostic
tests.
Cksm
The EME is calculating the checksum
value.
Stby
The EME is in standby mode, if it is a
backup.
Rdy
The EME is active and ready, if it is a
master.
56
CHAPTER 5: START THE SWITCH
If you power on a power supply and it is not
operating, the Character Display displays the
following: PWR x.
Where x is the number of the power supply that is not
operating.
The installed switch fabric module Status LED flashes
green.
When the power-on phase has completed
successfully, normal operation begins and switch
fabric module Status LEDs stop flashing and remain a
steady green.
If one of the power-on diagnostic tests fails, then the
switch fabric module Status LED turns a steady
yellow.
The Switch displays the following message when the
management module is installed properly and the
RS-232 connection is made:
CoreBuilder 9000 Enterprise Management Engine
(vx.xx)
Copyright (c) 1999 3Com Corporation.
Login:
To continue operating and configuring your Switch,
see the CoreBuilder 9000 Enterprise Management
Engine User Guide.
Where to Go from Here
To verify that the CoreBuilder 9000 chassis and all
modules have been installed correctly, examine the
LED status on each module. To obtain information
about a module’s LEDs and status indicators, see the
User Guide, Getting Started Guide, or Quick Start
Guide for that module.
Table 9 indicates what to do after you power on the
Switch.
For detailed information about the tasks that are
listed in Table 9, see the Enterprise Management
Engine Quick Start Guide for the CoreBuilder 9000
Enterprise Switch or the CoreBuilder 9000 Enterprise
Management Engine User Guide.
Where to Go from Here
Table 9 Tasks to Perform After You Power On the Switch
Task
Description
Configure the
Enterprise
Management
Engine
■
Terminal settings
■
Time and date
To configure the EME, set:
■
■
■
Connect to a
terminal or a
modem
Device (Contact, Diagnostics, Location,
and Name)
SNMP parameters to enable network
access
Mastership priority, if you have two
EMEs
To configure and monitor your Switch,
connect a PC, terminal, or modem to the
EME console port.
You can manage your Switch locally
through a terminal connection or
remotely using a Telnet or modem connection.
Perform initial
management
access
Initially you access the Switch through the
RS-232 port.
With network access, you can manage
the CoreBuilder® 9000 Enterprise Switch
from a remote terminal or SNMP
manager.
57
58
CHAPTER 5: START THE SWITCH
Figure 22 Setup Tasks for the CoreBuilder 9000 Enterprise Switch 7-slot Chassis
Determine Site Requirements
• Enterprise Switch Getting Started
Guide, Appendix B
Administer and Operate
the Switch
• Enterprise Management Engine
User Guide, Chapter 4 and
Chapter 5
Unpack the CoreBuilder 9000
7- Slot Chassis
1
• “Unpacking Instructions”
(In this guide)
12
2
Troubleshoot Problems
Install the Chassis and
Optional Devices
• Enterprise Management Engine
User Guide, Chapter 8
®
CoreBuilder 9000
• 7-Slot Chassis Quick Installation
Guide
R
11
Configure the Switch for
Management
• Enterprise Management Engine
User Guide, Chapter 4 and
Chapter 5
3
9
8
7
Install a Power Supply
6
• 7-Slot Chassis Power Supply
Installation Guide
5
4
3
10
4
2
1
Power On the Switch
Install a Power Cable
• Enterprise Switch Getting Started
Guide, Chapter 5
• 7-Slot Chassis Power Supply
Installation Guide
®
CoreBuilder 9000 7-slot Chassis
9
5
Install Interface Modules
• Interface module quick start or
getting started guides
• Interface module user guides
(if available)
Install an EME Management
Module
8
• Enterprise Management Engine
Quick Start Guide
• Enterprise Management Engine
User Guide
Install a Switch Fabric
Module
• Switch fabric module quick
start or getting started guides
• Switch fabric module
user guides (if available)
7
6
Where to Go from Here
Figure 23 Setup Tasks for the CoreBuilder 9000 Enterprise Switch 8-slot Chassis and 16-slot Chassis
Determine Site Requirements
• Enterprise Switch Getting Started
Guide, Appendix B
Administer and Operate
the Switch
• Enterprise Management Engine
User Guide, Chapter 4 and
Chapter 5
1
®
CoreBuilder 9000
R
13
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Troubleshoot Problems
Unpack the CoreBuilder 9000
Chassis
• “Unpacking Instructions”
(On the shipping box and
in this guide)
2
Install the Universal Mounting
Shelf (for a rack installation)
• Enterprise Management Engine
User Guide, Chapter 8
• Chassis Quick Installation Guide for
the 8-slot Chassis and the
16-slot Chassis
12
3
Configure the Switch for
Management
Install the Chassis and
Optional Devices
• Enterprise Management Engine
User Guide, Chapter 4 and
Chapter 5
®
CoreBuilder 9000 16-slot Chassis
11
4
Power On the Switch
®
CoreBuilder 9000
R
1
2
3
4
5
6
7
8
9
10
• Enterprise Switch Getting Started
Guide, Chapter 5
Install a Power Supply and
the Power Cable
• Power Supply Installation Guide
for the 8-slot Chassis and
16-slot Chassis
10
Install Interface Modules
• Interface module quick start or
getting started guides
• Interface module user guides
(if available)
• Chassis Quick Installation Guide for
the 8-slot Chassis and the
16-slot Chassis
ON
9
CoreBuilder® 9000 8-slot Chassis
Install the Plastic Power
Supply Air Grille Bezel
(for the 16-slot chassis only)
• Chassis Quick Installation Guide for
the 8-slot Chassis and the
16-slot Chassis
Install a Switch Fabric
Module
Install an EME Management
Module
• Switch fabric module quick
start or getting started guides
• Switch fabric module
user guides (if available)
• Enterprise Management Engine
Quick Start Guide
• Enterprise Management Engine
User Guide
8
6
7
5
59
60
CHAPTER 5: START THE SWITCH
6
NAVIGATING THE DOCUMENTATION CD-ROM
This chapter provides an overview of how to use the
Documentation CD-ROM and the Web to find
information. After you install and start the
Documentation CD-ROM, you can review the list of
available documents and begin reading.
You can view additional 3Com technical
documentation on the 3Com home page at:
http://www.3com.com
Click Support and look under Documents and
Information.
This section contains the following topics:
■
Viewing PDF (Portable Document Format) files
■
Using Bookmarks
■
Searching Documents
■
Browsing the Web
Viewing PDF Files
The Documentation CD-ROM contains:
■
3Com CoreBuilder® 9000 documentation in
Adobe Acrobat format
■
Adobe Acrobat Reader and Reader installation
instructions
If you have difficulty installing the Acrobat Reader, use
an Internet browser to download the reader from the
Adobe home page at:
http://www.Adobe.com
After you have installed your CD-ROM, open the
roadmap.pdf file and click the desired document title.
The Adobe Acrobat Reader automatically launches
that document and the PDF version then appears in
the window.
Using Bookmarks
Each document on the CD-ROM displays a table of
contents in the left side of the PDF file. These are
bookmarks. When you click an entry, the linked text is
automatically displayed or another subset of the
bookmarks appears.
CHAPTER 6: NAVIGATING THE DOCUMENTATION CD-ROM
62
Searching Documents
You can search within a document for a word or
phrase. To search within a single document for a
specific word or phrase, use the Find command as
follows:
1 From the Tools menu, select the Find menu option.
2 In the Find text box, enter the text that you want to
find. You can select how to use the search engine.
You can select:
■
Match whole word only
■
Match case
■
Find backwards
3 Click the Find button.
If the text is found, it is highlighted. If it is not found,
a message indicates that no occurrences of the word
were found.
Browsing on the Web
If you have access to the Internet, the documentation
on the CD-ROM is available from the 3Com Web site
in PDF and HTML. You can print and view individual
document pages in the PDF files using the provided
Adobe Acrobat Reader application.
Use the provided browser to access different
information about 3Com and the most current
version of 3Com technical documentation.
7
MAINTENANCE FOR THE 7-SLOT CHASSIS
This chapter describes the routine maintenance to
perform to keep your CoreBuilder® 9000 Enterprise
Switch 7-slot chassis working at its best. This chapter
also provides instructions for replacing power supplies
and fan trays.
WARNING: Only trained electrical service personnel
should perform Switch connections and
disconnections.
WARNING: Hazardous energy levels exist inside of
the chassis. Do not place hands or objects into the
Switch or touch components on an inserted module.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described in
this chapter and return them to your supplier. Keep
replacement power supply units and fan trays at your
site so that they are available if needed.
This section provides information about the
CoreBuilder 9000 Enterprise Switch 7-slot chassis and
contains the following topics:
■
Routine Maintenance
■
Removing and Replacing a Power Supply
■
Removing and Replacing a Fan Tray
Routine Maintenance
On a regular basis, inspect your 7-slot chassis to verify
that:
■
All blank faceplates are securely attached to the
chassis.
■
The fan tray is running.
CAUTION: The CoreBuilder 9000 7-slot Switch
sends a fan fault message when one fan fails in the
fan tray. However, the Switch can continue to run if
one fan fails in the fan tray. If a second or third fan
fails, in that fan tray, no trap message is generated.
Replace the fan tray within 48 hours of receiving
the trap message or contact your service
representative. Run the 7-slot Switch with all four
fans operating in the fan tray.
■
Ventilation to the Switch is unobstructed.
■
All modules are securely seated in the backplane
and firmly attached to the chassis.
CHAPTER 7: MAINTENANCE FOR THE 7-SLOT CHASSIS
64
■
Module LEDs are functioning normally and show
normal readings.
■
Power requirements for all installed modules are
met by the power supplies.
■
Power cords from each power supply are not
frayed or damaged.
■
Cables that run from each installed module are
securely attached and in good condition.
■
If rack-mounted, the chassis and the cable
management device are securely attached to your
rack.
Removing and Replacing a Power Supply
This section describes how to remove and then
replace the following power supplies in the 7-slot
chassis:
■
■
930-watt AC power supply
(Model Number 3CB9EP9)
–48-volt DC power supply
(Model Number 3CB9EP8D7)
CAUTION: When you replace a power supply, leave
a sufficient number of power supplies running at
all times to satisfy the power requirements of
installed modules. If you have an installed
Enterprise Management Engine (EME), enter the
show power budget command to display current
power conditions for the CoreBuilder 9000
Enterprise Switch. If you determine that removal of
a defective, but still functioning, power supply will
not cause a power deficit in the Switch, you can
remove the faulty power supply without losing
power to any modules.
WARNING: Before you attempt to remove a
930-watt AC power supply from the chassis, to avoid
contact with hazardous energy, be sure to set the
power supply’s Standby/On switch (Figure 24) to the
Standby position, and to disconnect the power cord
from both the electrical outlet and then the power
supply.
WARNING: Before you attempt to remove a –48-volt
DC power supply from the chassis, to protect the
power supply that you want to remove, set the power
supply’s Standby/On switch to the Standby position
and turn off the building power source circuit
breaker.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described
here and return the components to your supplier.
Keep replacement power supply units and fan trays at
your site so that they are available if needed.
Removing and Replacing a Power Supply
2 Remove the power cord from the electrical outlet.
Removing a 930-watt Power Supply
The CoreBuilder 9000 Enterprise Switch 7-slot chassis
can accommodate up to two 930-watt modular
load-sharing power supplies or two –48-volt DC
power supplies.
To remove a 930-watt power supply from a 7-slot
chassis:
1 Set the power supply’s Standby/On switch (Figure 24),
which is located on the front of the power supply, to
the Standby position.
Figure 24 930-watt Power Supply Standby/On Switch
Standby position
65
On position
Standby/On
switch
3 Remove the power cord from the power supply’s AC
input socket.
4 Remove the power supply. See Figure 25.
a Using a flat-blade screwdriver, loosen the
spring-loaded screws that secure the power supply
to the back of the chassis.
b Face the back of the chassis and grasp the power
supply handle.
c Pull the power supply straight out from the chassis,
making certain that you do not damage the
connectors and guide pins on the rear of the
power supply or the connectors on the chassis
backplane.
CAUTION: To prevent damage to the guide pins and
connectors, while you pull the power supply straight
out of the chassis, place one hand under the bottom
of the power supply to support it.
66
CHAPTER 7: MAINTENANCE FOR THE 7-SLOT CHASSIS
Figure 25 Removing the Power Supply Using the Handle
2 Use the guide pins on the power supply (Figure 26)
and carefully slide the power supply unit into the
selected power supply slot.
Figure 26 Guide Pins for the CoreBuilder 9000 7-slot Chassis
Power Supply
Power
supply
slot 2
Power
supply
(in slot 1)
Power supply
guide pin
Replacing a 930-watt Power Supply
To install a new 930-watt power supply and power
supply cord:
1 With one hand, grasp the power supply by the
handle; put your other hand beneath the power
supply to support it; and face the back of the chassis.
Removing and Replacing a Power Supply
3 With the handle, gently push the power supply
inward (Figure 27) until the backplane connectors and
power supply connectors engage.
Figure 27 Installing a 930-watt Power Supply Using the
Handle
5 Before you plug in the power cord, verify that the
power supply’s Standby/On switch is in the Standby
position (Figure 24).
6 Plug one end of the power cord into the socket on
the power supply and then plug the other end into
the electrical outlet.
7 Set the power supply’s Standby/On switch to the
On position (Figure 24).
Power
supply
slot 2
Power
supply
(in slot 1)
You feel a slight resistance as the connectors engage.
CAUTION: If the resistance is too great, the power
supply connectors and the backplane connectors may
not be aligned properly. Do not force the power
supply into the slot or you can damage the
connectors. If necessary, remove and reinsert the
power supply, ensuring that the connectors are
aligned.
4 To secure the power supply to the chassis, tighten the
four spring-loaded screws to a Torque Specification of
from 5 to 7 in/lb (inch-pounds).
67
68
CHAPTER 7: MAINTENANCE FOR THE 7-SLOT CHASSIS
3 Remove each wire from the DC power source
Removing a –48-volt DC Power Supply
electrical outlet.
The CoreBuilder 9000 Enterprise Switch 7-slot chassis
can accommodate up to two –48-volt DC power
supplies.
4 Remove the 8 AWG wires from DC input connector
on the –48-volt DC power supply.
a Label the polarity of both ends of each wire
To remove a –48-volt DC power supply from a 7-slot
chassis:
1 Set the power supply’s Standby/On switch (Figure 28),
(Figure 29).
Figure 29 Label Each 8 AWG Gauge Wire
which is located on the side of the power supply, to
the Standby position.
-48-volt DC
Figure 28 –48-volt DC Power Supply Standby/On Switch
On position
0V
(zero volt)
Standby position
STANDBY
ON
Protective
earth ground
b Loosen the three wires with a slotted-blade
screwdriver.
INPUT RATING
-48 V
/27A
-48V
0V
ON
STANDBY
c Gently pull the three wires out of the DC input
Standby/On
switch
connector.
d Place the wires aside until you are ready to connect
them again.
2 To protect the power supply that you want to remove,
turn off the building’s power source circuit breaker.
Removing and Replacing a Power Supply
5 Remove the power supply.
a Using a flat-blade screwdriver, loosen the
spring-loaded screws that secure the power supply
to the back of the chassis.
b Grasp the power supply handle.
c Pull the power supply straight out from the chassis,
making certain that you do not damage the
connectors on the rear of the power supply or the
connectors on the chassis backplane.
CAUTION: To ensure against damage to the
connectors, while you pull the power supply straight
out of the chassis, put one hand under the bottom of
the power supply to support it.
69
CAUTION: If the resistance is too great, the power
supply connectors and the backplane connectors may
not be aligned properly. Do not force the power
supply into the slot or you can damage the
connectors. If necessary, remove and reinsert the
power supply, ensuring that the connectors are
aligned.
4 To secure the power supply to the chassis, tighten the
four spring-loaded screws to a Torque Specification of
from 5 to 7 inch-pounds.
5 Before you attach the 8 AWG gauge wire to the
power supply, verify that the power supply’s
Standby/On switch is in the Standby position.
6 Remove the recommended amount of insulation from
the 8 AWG gauge wire (Figure 30).
Replacing a –48-volt DC Power Supply
Figure 30 8 AWG Gauge Wire and Recommended Strip-back
To install a new –48-volt DC power supply:
1 With one hand, grasp the power supply by the
handle; put your other hand beneath the power
supply to support it; and face the back of the chassis.
2 Carefully slide the power supply unit into the selected
power supply slot.
3 With the handle (Figure 27), gently push the power
supply inward until the power supply connectors and
backplane connectors engage.
You feel a slight resistance as the connectors engage.
8 AWG gauge
9mm
(.36 in.)
CHAPTER 7: MAINTENANCE FOR THE 7-SLOT CHASSIS
70
7 Insert each of the three end wires into the slots of the
DC input connector (Figure 31).
This section describes how to remove and then
replace a fan tray for the 7-slot chassis:
Figure 31 –48-volt DC Power Supply Labels
ON
DC
power source
8 AWG
gauge wires
Removing and Replacing a Fan Tray
-48V
0V
STANDBY
INPUT RATING
-48 V
/27A
8 Using a slotted-blade screwdriver, secure each wire to
the DC input connector.
9 Attach the other end of the 8 AWG gauge wires to
the building’s DC power source, then verify that all
connections at the power supply and the power
source are security attached.
WARNING: Make certain that the polarity orientation
from the DC power source to the –48-volt DC power
supply connector is the same.
10 Turn on the building’s power source circuit breaker
that connects to the –48-volt DC power supply.
11 Set the power supply’s Standby/On switch to the On
(  ) position and follow the normal operating
procedure for your CoreBuilder 9000 7-slot chassis.
CAUTION: The CoreBuilder 9000 7-slot Switch
sends a fan fault message when one fan fails in the
fan tray. However, the Switch can continue to run if
one fan fails in the fan tray. If a second or third fan
fails, in that fan tray, no trap message is generated.
Replace the fan tray within 48 hours of receiving
the trap message or contact your service
representative. Run the 7-slot Switch with all four
fans operating in the fan tray.
You can remove the fan trays and then install them
without powering off the Switch. This is called hot
swapping.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described
here and return the components to your supplier.
Keep replacement power supply units and fan trays at
your site so that they are available if needed.
Removing and Replacing a Fan Tray
71
2 Face the front of the chassis, grasp the handle on the
Removing the Fan Tray from a 7-slot Chassis
The CoreBuilder 9000 Enterprise Switch 7-slot chassis
contains one fan tray. The fan tray contains four fans.
Fans in the power supplies help to ventilate the
Switch, but they are not designed to act as a
substitute for the dedicated fan tray.
To remove the fan tray from the 7-slot chassis, follow
these steps:
fan tray, and firmly pull the fan tray toward you
(Figure 33).
Figure 33 Removing the Fan Tray from the 7-slot Chassis
Spring-loaded
screw
R
9
1 Using a flat-blade screwdriver, loosen the two
8
spring-loaded screws that attach the fan tray to the
front of the chassis (Figure 32).
Fan tray
handle
Figure 32 The Two Spring-loaded Screws on the Fan Tray
7
6
5
4
3
Spring-loaded
screw
2
R
1
9
8
Fan tray
handle
7
Spring-loaded
screw
6
5
4
3
2
1
Spring-loaded
screw
CAUTION: Before you completely remove the fan
tray, wait until all fans in the fan tray stop rotating.
3 Carefully pull the fan tray straight out from the
chassis.
72
CHAPTER 7: MAINTENANCE FOR THE 7-SLOT CHASSIS
3 Slide the fan tray into the chassis (Figure 35).
Replacing the Fan Tray in a 7-slot Chassis
You can install a fan tray in your CoreBuilder 9000
7-slot chassis while the power is still on (this is called
hot swapping).
To install a new fan tray:
1 Grasp the handle on the fan tray and then face the
Figure 35 Installing the Fan Tray into the 7-slot Chassis Using
the Handle
Spring-loaded
screw
R
front of the chassis.
9
2 Locate the connector on the fan tray (Figure 34).
8
Fan tray
handle
Figure 34 Connector on the Fan Tray
7
6
5
4
3
2
1
Spring-loaded
screw
4 Align the fan tray connector and the backplane
connector.
Fan tray
connector
5 Gently push the fan tray inward until the connectors
engage.
You feel a slight resistance as the connectors engage.
Handle
Removing and Replacing a Fan Tray
CAUTION: If the resistance is too great, the fan tray
connector and backplane connector may not be
aligned properly. Do not force the fan tray inward or
you can damage the connectors. If necessary, remove
and reinsert the fan tray, ensuring that the connectors
are properly aligned.
6 Verify that the fan tray is flush with the front of the
chassis. If the fan tray and the chassis are not aligned,
remove the fan tray and reseat it.
7 Using a flat-blade screwdriver, tighten the two
spring-loaded screws to secure the fan tray to the
front of the chassis (Figure 35).
The fans begin rotating the moment that you power
on the Switch.
8 Visually inspect all installed fans to verify that each is
turning without interruption. If a fan is not running,
shut the power off and remove and reinsert the fan
tray.
73
74
CHAPTER 7: MAINTENANCE FOR THE 7-SLOT CHASSIS
8
MAINTENANCE FOR THE 8-SLOT CHASSIS AND
THE 16-SLOT CHASSIS
This chapter describes the routine maintenance to
perform to keep your CoreBuilder® 9000 Enterprise
Switch 8-slot chassis and 16-slot chassis working at
their best. This chapter also provides instructions for
replacing power supplies and fan trays.
WARNING: Only trained electrical service personnel
should perform Switch connections and
disconnections.
WARNING: Hazardous energy levels exist inside of
the chassis. Do not place hands or objects into the
Switch or touch components on an inserted module.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described in
this chapter and return them to your supplier. Keep
replacement power supply units and fan trays at your
site so that they are available if needed.
This chapter contains the following topics:
■
Routine Maintenance
■
Removing and Replacing a Power Supply
■
Removing and Replacing a Fan Tray
Routine Maintenance
On a regular basis, inspect your CoreBuilder 9000
chassis to verify that:
■
All blank faceplates are securely attached to the
chassis.
■
Two fans trays are running in the 8-slot chassis and
three fan trays are running in the 16-slot chassis.
CAUTION: The CoreBuilder 9000 8-slot Switch and
16-slot Switch send a trap message and can
continue to run if one fan fails in one fan tray.
However, if a second or third fan fails, in that same
fan tray, no trap message is generated. Replace the
fan tray within 48 hours of receiving the trap
message or contact your service representative.
Run the Switch with a full complement of fan trays.
■
Ventilation to the Switch is unobstructed.
■
All modules are securely seated in the backplane
and firmly attached to the chassis.
■
Module LEDs are functioning normally and show
normal readings.
■
Power requirements for all installed modules are
met by the power supplies.
■
Power cords from each power supply are not
frayed or damaged.
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
76
■
Cables that run from each installed module are
securely attached and in good condition.
■
If rack-mounted, the chassis and the cable
management device are securely attached to your
rack.
Removing and Replacing a Power Supply
This section describes how to remove and then
replace the following power supplies in the 8-slot
chassis and 16-slot chassis:
■
820-watt AC power supply
(Model Number 3CB9EP8)
■
–48-volt DC power supply
(Model Number 3CB9EP8D)
You install and remove the 820-watt power supply in
the same manner, using the same steps for the 8-slot
chassis and the 16-slot chassis.
CAUTION: When you replace a power supply, leave
a sufficient number of power supplies running at
all times to satisfy the power requirements of
installed modules. If you have an installed
Enterprise Management Engine (EME), enter the
show power budget command to display current
power conditions for the CoreBuilder 9000
Enterprise Switch. If you determine that removal of
a defective, but still functioning, power supply will
not cause a power deficit in the Switch, you can
remove the faulty power supply without losing
power to any modules.
WARNING: Before you attempt to remove an
820-watt AC power supply from the chassis, to avoid
contact with hazardous energy, be sure to set the
power supply’s On/Off switch to the Off (Ο ) position
and to disconnect the power cord from both the
electrical outlet and then the power supply.
WARNING: Before you attempt to remove a
–48-volt DC power supply from the chassis, to protect
the power supply that you want to remove, set the
power supply’s Standby/On switch to the Standby
position and turn off the building power source
circuit breaker.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described
here and return the components to your supplier.
Keep replacement power supply units and fan trays at
your site so they are available if needed.
Removing and Replacing a Power Supply
Removing an 820-watt Power Supply
Figure 36 CoreBuilder 9000 16-slot Chassis Power Supply
Location with an 820-watt Power Supply Installed
The CoreBuilder 9000 Enterprise Switch can
accommodate the following number of 820-watt
power supplies:
■
The 8-slot chassis can accommodate up to three
820-watt modular load-sharing power supplies.
■
The 16-slot chassis can accommodate up to four
820-watt modular load-sharing power supplies.
Figure 36 shows an 820-watt AC power supply in the
16-slot chassis. Figure 37 shows an 820-watt AC
power supply in an 8-slot chassis.
The figures in this section illustrate the 16-slot chassis.
Unless otherwise noted, the same procedures apply
to the 8-slot chassis, except that the power supplies
are located in a different area in the chassis. You
install and remove power supplies in the same
manner, using the same steps.
77
Power supply
(in slot 1)
Power supply
slot 3
Power supply
slot 2
Power supply
slot 4
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
78
Figure 37 CoreBuilder 9000 8-slot Chassis Power Supply
Location with a 820-watt Power Supply Installed
Power supply
slot 3
To remove an 820-watt power supply from a
CoreBuilder 9000 8-slot chassis or 16-slot chassis,
follow these steps:
1 For the 16-slot chassis only, to gain access to the
power supply slots, remove the plastic air grille bezel
that covers the power supply bay (Figure 38).
a With both hands, hold each side of the bezel and
®
CoreBuilder 9000
R
1
2
3
4
5
6
7
8
9
10
push down on the top of the bezel with your
thumbs.
b Gently snap the bottom of the bezel off and then
the top.
Figure 38 Removing the Plastic Air Grille Bezel That Covers
the Power Supply Slots
ON
Power supply
(in slot 1)
Power supply
slot 2
Power supply
plastic air grille bezel
Removing and Replacing a Power Supply
2 For both the 8-slot chassis and the 16-slot chassis, set
the 820-watt power supply’s On/Off switch
( | / Ο ), which is located on the front of the power
supply, to the Off ( Ο ) position (Figure 39).
Figure 39 CoreBuilder 9000 Chassis 820-watt AC Power
Supply
79
3 Remove the power cord from the electrical outlet.
4 Remove the power cord from the power supply
socket.
5 Remove the power supply (Figure 40).
a Using a flat-blade screwdriver, loosen the
spring-loaded screws that secure the power supply
to the front of the chassis.
b Face the front of the chassis and grasp the power
supply handle (Figure 40).
c Pull the power supply straight out from the chassis,
Handle
making certain that you do not damage the
connectors and guide pins on the rear of the
power supply or the connectors on the chassis
backplane.
CAUTION: To prevent damage to the guide pins and
connectors, while you pull the power supply straight
out of the chassis, place one hand under the bottom
of the power supply to support it.
Power cord
socket
On/off
switch
Spring-loaded
screw
80
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
Figure 40 Removing an 820-watt Power Supply Using the
Handle
2 Use the four guide pins on the power supply
(Figure 41) and carefully slide the power supply unit
into the selected power supply slot.
Figure 41 Guide Pins for the CoreBuilder 9000 Power Supply
Spring-loaded
screw
Power supply
guide pin
Power supply
connector
Handle
Replacing an 820-watt Power Supply
To install a new 820-watt power supply and power
supply cord:
1 With one hand, grasp the power supply by the
handle; put your other hand beneath the power
supply to support it; and face the front of the chassis.
3 With the handle (Figure 42), gently push the power
supply inward until the connectors engage.
You feel a slight resistance as the connectors engage.
CAUTION: If the resistance is too great, the power
supply connectors and the backplane connectors may
not be aligned properly. Do not force the power
supply into the slot or you can damage the
connectors. If necessary, remove and reinsert the
power supply, ensuring that the connectors are
aligned.
Removing and Replacing a Power Supply
Figure 42 Installing an 820-watt Power Supply Using the
Handle
81
4 To secure the power supply to the chassis, tighten the
four spring-loaded screws (Figure 42) to a Torque
Specification of from 5 to 7 in/lb (inch-pounds).
5 Plug one end of the power cord into the socket on
the power supply and then plug the other end into
the electrical outlet.
6 Set the power supply’s On/Off switch ( | / Ο ) to the
On ( | ) position.
Spring-loaded
screw
7 For the 16-slot chassis, attach the power supply
plastic air grille bezel:
a With both hands, grasp the bezel and face the
front of the chassis.
b Use the guide pins on the bezel and push the bezel
straight in to secure it to the front of the chassis.
Removing a –48-volt DC Power Supply
The CoreBuilder 9000 Enterprise Switch 8-slot chassis
can accommodate up to three –48-volt DC power
supplies. The 16-slot chassis can accommodate up to
four –48-volt DC power supplies.
Handle
82
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
Figure 43 Location of the –48-volt DC Power Supply in an
8-slot Chassis
Power supply
slot 3
1 For the 16-slot chassis only, to gain access to the
power supply slots, remove the plastic air grille bezel
that covers the power supply bay (Figure 37).
a With both hands, hold each side of the bezel and
push down on the top of the bezel with your
thumbs.
b Gently snap the bottom of the bezel off and then
®
CoreBuilder 9000
R
1
2
3
4
5
6
7
8
9
the top.
2 For both an 8-slot chassis or 16-slot chassis, set the
10
power supply’s Standby/On switch (Figure 44), which
is located on the front of the power supply, to the
Standby position.
Figure 44 –48-volt DC Power Supply Standby/On Switch
Handle
ON
-48V
0V
STANDBY
INPUT RATING
-48 V
/27A
Power supply
(in slot 1)
Power supply
slot 2
ON
DC input
connector
-48V
Standby/On
switch
0V
STANDBY
INPUT RATING
-48 V
/27A
Spring-loaded
screw
Removing and Replacing a Power Supply
3 To protect the power supply that you want to remove,
turn off the building’s power source circuit breaker.
4 Remove each wire from the DC power source
electrical outlet.
5 Remove the 8 AWG wires from the DC input
connector on the –48-volt DC power supply.
a Label the polarity at both ends of each wire.
Figure 45 Label Each 8 AWG Gauge Wire
-48-volt DC
0V
(zero volt)
Protective
earth ground
83
6 Remove the power supply.
a Using a flat-blade screwdriver, loosen the
spring-loaded screws that secure the power supply
to the chassis.
b Grasp the power supply handle.
c Pull the power supply straight out from the chassis,
making certain that you do not damage the
connectors on the rear of the power supply or the
connectors on the chassis backplane.
CAUTION: To ensure against damage to the
connectors, while you pull the power supply straight
out of the chassis, put one hand under the bottom of
the power supply to support it.
Replacing a –48-volt DC Power Supply
To install a –48-volt DC power supply:
b Loosen the three wires with a slotted-blade
screwdriver.
c Gently pull the three wires out of the DC input
connector.
d Place the wires aside until you are ready to connect
them again.
1 With one hand, grasp the power supply by the
handle; put your other hand beneath the power
supply to support it; and face the front of the chassis.
2 Carefully slide the power supply unit into the selected
power supply slot.
3 With the handle (Figure 44), gently push the power
supply inward until the connectors engage.
You feel a slight resistance as the connectors engage.
84
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
CAUTION: If the resistance is too great, the power
supply connectors and the backplane connectors may
not be aligned properly. Do not force the power
supply into the slot or you can damage the
connectors. If necessary, remove and reinsert the
power supply, ensuring that the connectors are
aligned.
7 Insert each of the three end wires into the slots on the
DC input connector (Figure 47).
Figure 47 –48-volt DC Power Supply Labels
4 To secure the power supply to the chassis, tighten the
four spring-loaded screws to a Torque Specification of
from 5 to 7 in/lb (inch-pounds).
ON
DC
power source
8 AWG
gauge wires
-48V
0V
5 Before you attach the 8 AWG gauge wires to the
STANDBY
power supply, verify that the power supply’s
Standby/On switch is in the Standby position.
INPUT RATING
-48 V
/27A
6 Remove the recommended amount of insulation from
the 8 AWG gauge wire (Figure 46).
Figure 46 8 AWG Gauge Wire and Recommended Strip-back
8 AWG gauge
9mm
(.36 in.)
8 Using a slotted-blade screwdriver, secure each wire to
the DC input connector.
9 Attach the other end of the 8 AWG gauge wires to
the building’s DC power source, then verify that all
connections at the power supply and the power
source are securly attached.
WARNING: Make certain that the polarity orientation
from the DC power source to the –48-volt DC power
supply connector is the same.
10 Turn on the building’s power source circuit breaker
that connects to the –48-volt DC power supply.
11 Set the power supply’s Standby/On switch to the On
( | ) position and follow the normal operating
procedure for your CoreBuilder 9000 8-slot chassis
and 16-slot chassis.
Removing and Replacing a Fan Tray
12 For the 16-slot chassis, attach the power supply
plastic air grille bezel:
a With both hands, grasp the bezel and face the
front of the chassis.
b Use the guide pins on the bezel and push the bezel
straight in to secure it to the front of the chassis.
Removing and Replacing a Fan Tray
This section describes how to remove and then
replace a fan tray for the CoreBuilder 9000 8-slot
chassis and the 16-slot chassis.
CAUTION: The CoreBuilder 9000 Enterprise Switch
generates a fan fault message and can continue to
run if one fan fails in one fan tray. However, if a
second or third fan fails, in that same fan tray, no trap
message is generated. Replace the fan tray within
48 hours of failure notification or contact your service
representative.
You can remove the fan trays and then install them
without powering off the Switch. This is called hot
swapping.
There are no user-serviceable parts on either the
load-sharing power supplies or on the fan trays. If
these components fail, remove them as described
here and return the components to your supplier.
Keep replacement power supply units and fan trays at
your site so that they are available if needed.
85
Removing a Fan Tray from the Chassis
The CoreBuilder 9000 Enterprise Switch 8-slot chassis
can accommodate up to two fan trays. The 16-slot
chassis can accommodate up to three fan trays. Each
fan tray contains three fans.
To remove a fan tray from the 8-slot chassis or 16-slot
chassis, follow these steps:
1 Using a flat-blade screwdriver, loosen the six
spring-loaded screws that attach the fan tray to the
rear of the chassis (Figure 48).
Figure 48 The Six Spring-loaded Screws on the Fan Tray
Spring-loaded
screws
86
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
2 Grasp the two handles on the fan tray and firmly pull
the fan tray toward you (Figure 49).
Figure 49 Removing the Fan Tray from the CoreBuilder 9000
Chassis
Replacing a Fan Tray in a Chassis
You can install a fan tray in your CoreBuilder 9000
8-slot chassis or 16-slot chassis while the power is still
on.
To install a new fan tray:
Fan tray
handles
1 Grasp the two handles on the fan tray and then face
the rear of the chassis.
2 Locate the guide pin and the connector on the fan
tray (Figure 50).
Figure 50 Guide Pin and Connector on the Fan Tray
Fan tray
guide pin
CAUTION: Before you completely remove the fan
tray, wait until all fans in the fan tray stop rotating.
3 Carefully pull the fan tray straight out from the
chassis, making sure that you do not damage the
connector and guide pin on the rear of the fan tray
(Figure 50).
Handle
Fan tray
connector
Removing and Replacing a Fan Tray
3 Slide the fan tray into the chassis (Figure 51).
Figure 51 Installing the Fan Tray into the 8-slot Chassis or
16-slot Chassis Using the Handles
87
6 Verify that the fan tray is flush with the back of the
chassis. If the fan tray and the chassis are not aligned,
remove the fan tray and reseat it.
7 Using a flat-blade screwdriver, tighten the six
Fan tray
handles
spring-loaded screws to secure the fan tray to the rear
of the chassis (Figure 48).
The fans begin rotating the moment that you power
on the chassis or insert a fan tray into a powered-on
chassis.
8 Visually inspect all installed fans to verify that each is
turning without interruption. If a fan is not running,
shut the power off and remove and reinsert the fan
tray.
4 Align the fan tray connector and the backplane
connector.
5 Use the guide pin on the fan tray and the guide pin
holes on the back of the chassis and gently push the
fan tray inward until the fan tray connector and
backplane connector engage.
You feel a slight resistance as the connectors engage.
CAUTION: If the resistance is too great, the fan tray
connector and backplane connector may not be
aligned properly. Do not force the fan tray inward or
you can damage the connectors. If necessary, remove
and reinsert the fan tray, ensuring that the connectors
are properly aligned.
88
CHAPTER 8: MAINTENANCE FOR THE 8-SLOT CHASSIS AND THE 16-SLOT CHASSIS
SPECIFICATIONS
A
This appendix lists the following specifications for the
3Com CoreBuilder® 9000 Enterprise Switch:
7-slot Chassis Specifications
This section contains specifications for the
CoreBuilder 9000 Enterprise Switch 7-slot chassis.
■
Physical
■
Environmental
■
Power
■
Regulatory Compliance
Height
31 cm
12.2 inches (7 Rack Units)
■
Interfaces
Width
48.3 cm
19 inches (including rack-mount
flanges)
44.4 cm
17.5 inches (not including
rack-mount flanges)
Depth
52.58 cm
20.7 inches
Weight
18.14 kg
40 pounds (chassis and
backplane)
38.55 kg
85 pounds (fully loaded)
Physical
The specifications apply to the following:
■
7-slot chassis
■
8-slot chassis
■
16-slot chassis
■
Power supplies:
■
930-watt
■
820-watt
■
–48-volt DC
Mounting
Tabletop, shelf, or 19-inch rack mount
APPENDIX A: SPECIFICATIONS
90
Environmental
Operating
temperature1
0 °C to 50 °C ambient2
(32 °F to 122 °F)
Operating humidity
10% to 90%, noncondensing
Storage temperature
-40 °C to 66 °C
(-40 °F to 151 °F)
Storage humidity
10% to 90%, noncondensing
1
Switch operating temperature is the temperature of the environment in which the Switch is installed.
2 Ambient air is room air (more specifically, the air drawn into
the Switch by installed fans to cool installed Switch components). Ambient air temperature is not measured by chassis
temperature sensors.
WARNING: For use in Denmark, each 3CB9EP9
power supply must receive power from a separately
dedicated socket outlet having a 16-ampere fuse in
the installation. This product must be mounted in a
fixed installation such as a permanent rack.
WARNING: Ved brug i Danmark, skal hver 3CB9EP9
stromforsyning modtage strom fra en separat,
dedikeret stikkontakt med en 16-ampere sikring i
installationen.
Regulatory Compliance
Safety
CAUTION: To maintain proper ventilation, keep the
sides of the 7-slot Switch at least 7 cm (2.76 in.) or
greater from a wall or other obstruction. In addition,
provide at least 91.4 cm (36 inches) in back of the
Switch to remove and replace the power supplies.
Power
Total power
consumption
1431 watts, 4882 BTU/hour
Output voltage
+3.5 V @ 195 A, +5.2 V @ 46 A,
+12 V @ 6 A, +2.1 V @ 4 A
Input voltage
range
United States — 85 to 132 VAC
Inrush current
maximum 40 A at 110 VAC
Input frequency
47 to 63 Hz
International — 180 to 264 VAC
CSA 22.2 No. 950
UL1950
TUV GS mark
IEC950, CB Certificate
EN60950, with amendments
Low Voltage
Directive
For products declaring LVD
compliance on the Declaration of
Conformity
This equipment was tested and
found to conform to the Council
Directive 72/23/EEC for safety of
electrical equipment. Conformity
with this directive is based upon
compliance with the safety standard.
8-slot Chassis Specifications
91
8-slot Chassis Specifications
EMC Directive
Emissions:
■
EMC EN55022
■
EN61000-3, 2
Immunity:
■
EN50082-1
*EMC Directive Compliance
This equipment was tested and found to conform to the Council
Directive 72/23/EEC for safety of electrical equipment. Conformity with this directive is based upon compliance with the following harmonized standards:
EN55022-Limits and Methods of Measurement of Radio Interference
EN50082-1 Electromagnetic Compatibility Generic Immunity
Standard: Residential, Commercial, and Light Industry
Interfaces
Network
Interfaces
Physical
Height
57.6 cm
22.7 inches (13 Rack Units)
Width
48.3 cm
19 inches (including rack-mount
flanges)
44.4 cm
17.5 inches (not including
rack-mount flanges)
51.2 cm
20.2 inches (from rack mount)
54.1 cm
21.3 inches (with fan trays)
51.2 kg
112.9 pounds (chassis and
backplane)
71.7 kg
158 pounds (fully loaded)
Depth
Weight
Mounting
Tabletop, shelf, or 19-inch rack mount
45 Mbps DS-3: BNC
34 Mbps E3: BNC
2.047 Mbps E1/nxE1 (IMA): RJ-48-c
Environmental
Operating
temperature1
0 °C to 50 °C ambient2
(32 °F to 122 °F)
Operating humidity
10% to 90%, noncondensing
Storage temperature
-40 °C to 66 °C
(-40 °F to 151 °F)
10/100BASE-T RJ-45 Fast Ethernet
Storage humidity
10% to 90%, noncondensing
RS-232 (DB-9) serial port
1
1.54 Mbps T1/nxT1 (IMA): RJ-48-c
10/100BASE-TX
100BASE-FX
1000BASE-SX
Management
interfaces
This section contains specifications for the
CoreBuilder 9000 Enterprise Switch 8-slot chassis.
Switch operating temperature is the temperature of the environment in which the Switch is installed.
2 Ambient air is room air (more specifically, the air drawn into
the Switch by installed fans to cool installed Switch components). Ambient air temperature is not measured by chassis
temperature sensors.
92
APPENDIX A: SPECIFICATIONS
CAUTION: To remove and replace fan trays and to
maintain proper ventilation for the 8-slot chassis,
keep the rear of the 8-slot Switch at least 91.4 cm
(36 inches) from a wall or other obstruction.
Regulatory Compliance
CSA 22.2 No. 950
Safety
UL1950
TUV GS mark
Power
IEC950, CB Certificate
Total power
consumption
1304 watts, 4449 BTU/hour
Output voltage
+5.2 V @ 115 A, +3.5 V @ 175 A,
+12 V @ 2 A, -5 V @ 4 A, +2 V @ 8 A
EN60950, with amendments
For products declaring LVD
compliance on the Declaration of
Conformity
Low Voltage
Directive
(+5.2V and +3.5V output is shared)
Input voltage
range
United States — 85 to 132 VAC
Inrush current
maximum 40 A at 110 VAC
Input frequency
47 to 63 Hz
This equipment was tested and
found to conform to the Council
Directive 72/23/EEC for safety of
electrical equipment. Conformity
with this directive is based upon
compliance with the safety standard.
International — 180 to 264 VAC
WARNING: For use in Denmark, each 3CB9EP8
power supply must receive power from a separately
dedicated socket outlet having a 16-ampere fuse in
the installation. This product must be mounted in a
fixed installation such as a permanent rack.
WARNING: Ved brug i Danmark, skal hver 3CB9EP8
stromforsyning modtage strom fra en separat,
dedikeret stikkontakt med en 16-ampere sikring i
installationen.
EMC Directive
Emissions:
■
EMC EN55022
■
EN61000-3, 2
Immunity:
■
EN50082-1
*EMC Directive Compliance
This equipment was tested and found to conform to the Council
Directive 72/23/EEC for safety of electrical equipment. Conformity with this directive is based upon compliance with the following harmonized standards:
EN55022-Limits and Methods of Measurement of Radio Interference
EN50082-1 Electromagnetic Compatibility Generic Immunity
Standard: Residential, Commercial, and Light Industry
16-slot Chassis Specifications
Environmental
Interfaces
155 Mbps OC-3c/STM-1
Operating
temperature1
0 °C to 50 °C ambient2
(32 °F to 122 °F)
45 Mbps DS-3: BNC
Operating humidity
10% to 90%, noncondensing
34 Mbps E3: BNC
Storage temperature
-40 °C to 66 °C
(-40 °F to 151 °F)
1.54 Mbps T1/nxT1 (IMA): RJ-48-c
Storage humidity
10% to 90%, noncondensing
10/100BASE-TX
1
622 Mbps OC-12c/STM-4
Network
Interfaces
2.047 Mbps E1/nxE1 (IMA): RJ-48-c
100BASE-FX
1000BASE-SX
Management
interfaces
10/100BASE-T RJ-45 Fast Ethernet
RS-232 (DB-9) serial port
16-slot Chassis Specifications
This section contains specifications for the
CoreBuilder 9000 Enterprise Switch 16-slot chassis.
Physical
Height
75.4 cm
29.7 inches (17 Rack Units)
Width
44.4 cm
17.5 inches (not including
rack-mount flanges)
Depth
51.1 cm
20.1 inches (from rack mount)
54.1 cm
21.3 inches (with fan trays)
43.1 kg
95 pounds (chassis and
backplane)
88.5 kg
195 pounds (fully loaded)
Weight
Mounting
93
Tabletop, shelf, or 19-inch rack mount
Switch operating temperature is the temperature of the environment in which the Switch is installed.
2 Ambient air is room air (more specifically, the air drawn into
the Switch by installed fans to cool installed Switch components). Ambient air temperature is not measured by chassis
temperature sensors.
CAUTION: To remove and replace fan trays and to
maintain proper ventilation for the 16-slot chassis,
keep the rear of the 16-slot Switch at least 91.4 cm
(36 inches) from a wall or other obstruction.
94
APPENDIX A: SPECIFICATIONS
Power
Total power
consumption
1325 watts, 4505 BTU/hour
Output voltage
+5.2 V @ 115 A, +3.5 V @ 175 A,
+12 V @ 2 A, -5 V @ 4 A, +2 V @ 8 A
For products declaring LVD
compliance on the Declaration of
Conformity
Low Voltage
Directive
This equipment was tested and
found to conform to the Council
Directive 72/23/EEC for safety of
electrical equipment. Conformity
with this directive is based upon
compliance with the safety standard.
(+5.2V and +3.5V output is shared)
Input voltage
range
United States — 85 to 132 VAC
Inrush current
maximum 40 A at 110 VAC
Input frequency
47 to 63 Hz
International — 180 to 264 VAC
EMC Directive
WARNING: For use in Denmark, each 3CB9EP8
power supply must receive power from a separately
dedicated socket outlet having a 16-ampere fuse in
the installation. This product must be mounted in a
fixed installation such as a permanent rack.
WARNING: Ved brug i Danmark, skal hver 3CB9EP8
stromforsyning modtage strom fra en separat,
dedikeret stikkontakt med en 16-ampere sikring i
installationen.
Regulatory Compliance
Safety
CSA 22.2 No. 950
UL1950
TUV GS mark
IEC950, CB Certificate
EN60950, with amendments
Emissions:
■
EMC EN55022
■
EN61000-3, 2
Immunity:
■
EN50082-1
*EMC Directive Compliance
This equipment was tested and found to conform to the Council
Directive 72/23/EEC for safety of electrical equipment. Conformity with this directive is based upon compliance with the following harmonized standards:
EN55022-Limits and Methods of Measurement of Radio Interference
EN50082-1 Electromagnetic Compatibility Generic Immunity
Standard: Residential, Commercial, and Light Industry
Power Supply Regulatory Compliance
Interfaces
Network
interfaces
820-watt and 930-watt AC Power Supply
622 Mbps OC-12c/STM-4
155 Mbps OC-3c/STM-1
Safety
TUV GS mark
34 Mbps E3: BNC
IEC950, CB Certificate
2.047 Mbps E1/nxE1 (IMA): RJ-48-c
EN60950, with amendments
1.54 Mbps T1/nxT1 (IMA): RJ-48-c
10/100BASE-TX
100BASE-FX
CSA 22.2 No. 950
UL1950
45 Mbps DS-3: BNC
Low Voltage
Directive
1000BASE-SX
Management
interfaces
95
For products declaring LVD
compliance on the Declaration of
Conformity
This equipment was tested and
found to conform to the Council
Directive 72/23/EEC for safety of
electrical equipment. Conformity
with this directive is based upon
compliance with the safety standard.
10/100BASE-T RJ-45 Fast Ethernet
RS-232 (DB-9) serial port
Power Supply Regulatory Compliance
This section lists regulatory standards for the
following CoreBuilder 9000 Enterprise Switch power
supplies:
–48-volt DC Power Supply
Safety
CSA 22.2 No. 950-95
820-watt AC for the 8-slot chassis and 16-slot
chassis
UL1950
■
930-watt AC for the 7-slot chassis
IEC950, CB Certificate
■
–48-volt DC for the 7-slot chassis, 8-slot chassis,
and 16-slot chassis
■
TUV GS mark
EN60950, with amendments
AUSTEL technical Standard, 001/AS
3260
Low Voltage
Directive
For products declaring LVD
compliance on the Declaration of
Conformity
This equipment was tested and
found to conform to the Council
Directive 72/23/EEC for safety of
electrical equipment. Conformity
with this directive is based upon
compliance with the safety standard.
96
APPENDIX A: SPECIFICATIONS
B
SITE REQUIREMENTS, SAFETY, AND
PREINSTALLATION INFORMATION
This appendix contains the following topics:
■
Site Requirements for the Switch
■
Power Requirements
■
Safety Information
■
Preinstallation Information
■
The table or rack on which you mount the chassis
supports at least three times the weight of a fully
loaded chassis.
■
The recommended minimum space that is required
between the front of the chassis and another
vertical surface (such as a rack door) is 8 cm (3 in.).
■
There is a sufficient amount of space on each side
of the 7-slot chassis to accommodate any cables
along the side of the chassis.
■
There is at least 7 cm (2.76 in.) on each side of the
7-slot chassis to ensure proper cooling in the
chassis.
■
There is at least 91.4 cm (36 in.) in back of the
chassis to:
Site Requirements for the Switch
This section describes the following site requirements
for setting up your CoreBuilder® 9000 Enterprise
Switch (7-slot chassis, 8-slot chassis, and 16-slot
chassis):
■
Location Requirements
■
Precautionary Guidelines
■
Ventilation Requirements
■
■
Location Requirements
Install a CoreBuilder 9000 Enterprise Switch in an
area that meets the following requirements:
■
■
Ambient (room) temperature: 0 °C to 50 °C (32 °F
to 122 °F). The default internal operating
temperature threshold for the CoreBuilder 9000
Switch is approximately 60 °C (140 °F).
Relative humidity: between 10 and 90 percent,
noncondensing.
■
Remove and replace power supplies in the
7-slot chassis.
Remove and replace the fan trays in the 8-slot
chassis and 16-slot chassis.
Maintain proper cooling.
■
If the chassis is the first device in your rack, then
mount it about 10.2 cm (4 in.) up from the floor.
■
The power source is within approximately 2 meters
(6.6 feet) of the location where you plan to install
the CoreBuilder 9000 chassis.
APPENDIX B: SITE REQUIREMENTS, SAFETY, AND PREINSTALLATION INFORMATION
98
■
Each of the power supplies connects to a
dedicated circuit. Do not connect the power
supplies to a power strip.
■
The surface on which you want to locate the
CoreBuilder 9000 chassis is level.
■
Have the required cables available at your site to
make physical connections in your Switch
configuration.
■
To reduce the possibility of personal injury or
serious damage to the chassis, use at least two
people to install the chassis. This is especially
important for rack installations, because you must
hold the chassis in place while you secure the
chassis to the rack.
■
Bolt the rack to the floor.
■
Make certain that the rack is properly aligned and
squared. Use a framing tool to ensure that the rack
is squared.
■
Brace the top of the rack against the wall.
■
Provide sufficient space in front of and behind the
chassis so that you can service it easily and provide
proper ventilation.
Precautionary Guidelines
■
■
Ambient temperature for the CoreBuilder 9000
Switch must not exceed 50 °C (122 °F).
Safety regulations stipulate that for a:
■
■
■
■
7-slot chassis, the table, shelf, or rack on which
the Switch rests can support at least 115.65 kg
(255 lb), which is three times the weight of a
fully loaded 7-slot chassis.
8-slot chassis, the table, shelf, or rack on which
the Switch rests can support at least 215 kg
(474 lb), which is three times the weight of a
fully loaded 8-slot chassis.
16-slot chassis, the table, shelf, or rack on
which the Switch rests can support at least
265.5 kg (585 lb), which is three times the
weight of a fully loaded 16-slot chassis.
For rack installations, the selected rack is grounded
in accordance with the rack manufacturer’s
recommendations.
■
■
■
Provide at least 7 cm (2.76 in.) on each side of
the 7-slot chassis to ensure proper cooling in
the chassis.
Provide at least 91.4 cm (36 in.) in back of the
Switch to remove and replace power supplies in
the 7-slot chassis, and to remove and replace
fan trays in the 8-slot chassis and 16-slot
chassis.
Provide sufficient space on the sides of a 7-slot
chassis and at the top or bottom of the 8-slot
chassis and the 16-slot chassis to allow for bend
radius for cables when using a cable
management device.
Site Requirements for the Switch
■
Use the following guidelines to tighten screws to
Torque Specification:
■
■
■
Faceplate thumbscrews — 3-5 in/lb
(inch-pounds)
To ensure that you tighten screws to Torque
Specification, use a torque screwdriver.
Table 8 indicates the amount of rack space that is
needed to install a CoreBuilder 9000 7-slot chassis,
8-slot chassis, and 16-slot chassis in a Telco rack or a
Metric rack.
Table 10 Metric and Telco Rack Space Requirements
Chassis
Model
Height1
Telco
Rack2
Metric
Rack3
Front
Clearance4
7-slot
chassis
30.98 cm
12.2 in.
7 RU
12.5 SU
8 cm
3 in.
8-slot
chassis
57.6 cm
22.69 in.
13 RU
23 SU
8 cm
3 in.
16-slot
chassis
75.4 cm
29.7 in.
17 RU
28 SU
8 cm
3 in.
1
Rack-Mount Installation Recommendations
Follow these recommendations when you install the
chassis in a rack:
■
Before you install the optional cable management
device for the 7-slot chassis, install the 7-slot
chassis in the rack.
■
Install the supplied mounting shelves into the rack
for the 8-slot chassis and 16-slot chassis.
■
Before you mount the 8-slot chassis and 16-slot
chassis in the rack, install the optional cable
management device.
■
Install the cable management device for the 8-slot
chassis and 16-slot chassis either above or below
where the chassis is located in the rack.
■
Use at least two people to install any chassis.
#10 screws for holding the chassis onto the
rail — 22-25 in/lb
Power supplies to the chassis — 5-7 in/lb
The height of the chassis, allowing for some extension beyond
the location of the upper and lower unit dividing lines.
2 The unit of measure is 1 Rack Unit (1.75 in. or 4.45 cm).
3 The unit of measure is 1 System Unit (25 millimeters).
4 This is the recommended minimum space required between the
front of the chassis and another vertical surface (such as a rack
door).
99
Before you install a chassis into a rack, make certain
that the rack you are using is properly aligned and
squared. Use a framing square to ensure that the rack
is squared. Doing so makes installing the chassis into
the rack easier.
WARNING: To maintain proper cooling in the chassis
and to maintain safety compliance, make certain that
blank faceplates cover any empty slots.
APPENDIX B: SITE REQUIREMENTS, SAFETY, AND PREINSTALLATION INFORMATION
100
Ventilation Requirements
This section describes ventilation requirements for
the:
■
7-slot chassis
■
8-slot chassis
■
16-slot chassis
Ventilation Requirements for the 7-slot Chassis
The CoreBuilder 9000 Switch 7-slot chassis contains
one fan tray that contains four fans.
To ensure that installed fans are able to provide
adequate ventilation, maintain at least 7 cm (2.76 in.)
between the sides of the 7-slot chassis and the
nearest wall (or other vertical surface). Also provide at
least 91.4 cm (36 in.) behind the chassis to be able to
remove and replace power supplies in the 7-slot
chassis.
When you face the front of the 7-slot chassis, the
inlet is on the right and the exhaust is on the left.
CAUTION: Operate a CoreBuilder 9000 Enterprise
Switch 7-slot chassis with four fans running. If one
fan in the fan tray fails, replace the fan tray as soon as
possible.
Ventilation Requirements for the 8-slot Chassis
and 16-slot Chassis
The CoreBuilder 9000 Enterprise Switch 8-slot chassis
contains two fan trays. The 16-slot chassis contains
three fan trays. Each fan tray contains three fans.
To remove and replace the fan trays in the 8-slot
chassis and 16-slot chassis, and to maintain proper
cooling, make certain that there is at least 91.4 cm
(36 in.) between the rear of the 8-slot chassis or
16-slot chassis and the nearest wall (or other vertical
surface).
The vent holes at the back of the 8-slot chassis and
16-slot chassis are exhaust vents that cool the power
supply bay. Do not block these vents.
CAUTION: Do not operate a CoreBuilder 9000
Enterprise Switch 16-slot chassis with fewer than
two fan trays running. Operate the 7-slot chassis and
the 8-slot chassis with a full complement of fans.
Power Requirements
Power Requirements
This section list power requirements for the following
power supplies:
■
■
■
101
Table 11 lists power requirements for each country.
Table 11 Power Requirements Per Country
Location
Volts
Hz
Ampere
930-watt AC (Model Number 3CB9EP9) for the
7-slot chassis
Asia
220 - 240 Volts
50 Hz
15-ampere
Australia
220 - 240 Volts
50 Hz
10-ampere
820-watt AC (Model Number 3CB9EP8) for the
8-slot chassis and the 16-slot chassis
Canada
120 Volts
60 Hz
20-ampere
Europe
220 - 230 Volts
50 Hz
16-ampere
–48-volt DC:
Japan
100 Volts
50/60 Hz
15-ampere
Model Number 3CB9EP8D7 for the 7-slot
chassis
South Africa
220 - 250 Volts
50 Hz
16-ampere
U.K.
240 Volts
50 Hz
13-ampere
Model Number 3CB9EP8D for the 8-slot chassis
and 16-slot chassis
U.S.A.
120 Volts
60 Hz
20-ampere
■
■
930-watt AC Power Supply
The CoreBuilder 9000 7-slot chassis can contain two
modular 930-watt power supplies. The 930-watt
power supplies provide AC power to the Switch. The
930-watt power supplies are autosensing. Each
power supply can automatically sense the type of
input voltage to which it is being connected at the
electrical outlet.
One power cord per power supply is required. The
power cord that you require depends on your country
location.
Table 12 lists the power cords for each country.
Table 12 Power Cord Description for Your Location
Location
Power Cord Type
Asia
C19/AS3112
Australia
C19/AS3112 special- 10A - C19
Canada
C19/NEMA 5-20P
Europe
C19/CEE7
Japan
C19/NEMA 5-15P
South Africa
C19/SABS164
U.K.
C19/BS1363A
U.S.A.
C19/NEMA 5-2 OP
APPENDIX B: SITE REQUIREMENTS, SAFETY, AND PREINSTALLATION INFORMATION
102
820-watt AC Power Supply
The CoreBuilder 9000 8-slot chassis can contain three
modular 820-watt AC front-loading load-sharing
power supplies and the 16-slot chassis can contain
four modular 820-watt AC front-loading load-sharing
power supplies.
The 820-watt AC power supplies are autosensing and
provide AC power to the Switch. Each power supply
can automatically sense the type of input voltage to
which it is being connected at the wall outlet.
See Table 11 and Table 12 for power requirements
and power cords for each country.
–48-volt DC Power Supply
The CoreBuilder 9000 7-slot chassis, 8-slot chassis,
and 16-slot chassis can contain –48-volt DC power
supplies.
■
The CoreBuilder 9000 7-slot chassis can contain
two rear-loading modular –48-volt DC power
supplies (Model Number 3CB9EP8D7).
■
The CoreBuilder 9000 8-slot chassis can contain
three front-loading –48-volt DC power supplies
(Model Number 3CB9EP8D) and the 16-slot chassis
can contain four front-loading –48-volt DC power
supplies (Model Number 3CB9EP8D).
CAUTION: Connect the –48-volt DC power supply to
a Safety Extra Low Voltage supply (SELV) only.
Carefully read the safety label that is attached to the
power supply unit that you received.
Safety Information
This section lists warning notices to read before you
install the CoreBuilder 9000 Enterprise Switch and its
components.
WARNING: The CoreBuilder 9000 Enterprise Switch
must be installed only by trained service personnel.
WARNING: To maintain proper cooling in the chassis
and maintain safety compliance, make certain that
blank faceplates cover any empty slots.
WARNING: Hazardous energy levels exist inside of
the Switch. Do not place hands or objects into the
Switch or touch components on an inserted module.
WARNING: When you install the chassis on a table or
shelf, do not use the optional cable management
device for the 8-slot chassis or 16-slot chassis. The
8-slot chassis or 16-slot chassis can tip over under
certain conditions. Hardware damage or personal
injury can result.
Safety Information
WARNING: Safety regulations state that the selected
table, shelf, or rack must be able to support at least
three times the weight of a fully loaded Switch. A
fully loaded:
■
■
■
7-slot chassis weighs approximately 38.55 kg
(85 lb). Therefore, the selected table or shelf must
support at least 115.65 kg (255 lb).
8-slot chassis weighs approximately 71.7 kg
(158 lb). Therefore, the selected table or shelf must
support at least 215.1 kg (474 lb).
16-slot chassis weighs approximately 88.5 kg
(195 lb). Therefore, the selected table or shelf must
support at least 265.5 kg (585 lb).
Denmark Safety Certification
The following warning is required for Denmark safety
certification:
WARNING: For use in Denmark, each 3CB9EP9
power supply must receive power from a separately
dedicated socket outlet having a 16-ampere fuse in
the installation. This product must be mounted in a
fixed installation such as a permanent rack.
WARNING: Ved brug i Danmark, skal hver 3CB9EP9
stromforsyning modtage strom fra en separat,
dedikeret stikkontakt med en 16-ampere sikring i
installationen.
103
Laser Warning
The following warning is required when you install
fiber-optic communication modules into the
CoreBuilder 9000 Enterprise Switch:
WARNING: To ensure optical safety when you install
a fiber-optic interface module, comply with the
following precaution:
Although the data communication LEDs and Lasers
used in this product meet the regulatory
requirements for casual exposure to the eye, as with
any source of bright light, 3Com recommends that
you do not look into the light source.
Laser Safety Information: IEC 825 and EN60825,
Class 1 Laser Device. For connection only to Class 1
Laser Devices.
CLASS 1
LASER PRODUCT
FDA Class 1 Laser Device
This product complies with U.S. Department of Health
and Human Services Rules 21 CFR Subchapter J
applicable at date of manufacture.
104
APPENDIX B: SITE REQUIREMENTS, SAFETY, AND PREINSTALLATION INFORMATION
LED Warning
The following warning is required when you install
fiber-optic communication modules into the
CoreBuilder 9000 Enterprise Switch:
WARNING: To ensure optical safety when you install
a fiber-optic interface module, comply with the
following precaution:
Although the data communication LEDs that are used
in this product meet the regulatory requirements for
casual exposure to the eye, as with any source of
bright light, 3Com recommends that you do not look
into the light source.
Preinstallation Information
Use the following rack-mount installation guidelines
to ensure your safety and optimal performance.
Review all guidelines before you install the chassis in a
rack.
Before you attempt to mount the chassis in a rack:
■
To help support the 8-slot chassis and 16-slot
chassis while you install it in a rack, install the
mounting shelves that are shipped with the 8-slot
chassis and 16-slot chassis.
■
For a 7-slot chassis, select a rack that can support
at least 115.65 kg (255 lb), which is three times
the weight of a fully loaded 7-slot chassis and that
provides sufficient vertical space for each chassis
that you want to install.
■
For an 8-slot chassis, select a rack that can support
at least 215.1 kg (474 lb), which is three times the
weight of a fully loaded 8-slot chassis, and that
provides sufficient vertical space for each chassis
that you want to install.
■
For a 16-slot chassis, select a rack that can support
at least 265.5 kg (585 lb), which is three times the
weight of a fully loaded 16-slot chassis, and that
provides sufficient vertical space for each chassis
that you want to install.
■
Make certain that the rack that you use is properly
aligned and is squared. Use a framing square to
ensure that the rack is squared.
■
Bolt the rack to the floor.
■
Brace the top of the rack against the wall.
LED Safety Information: IEC 825, Class 1 LED
Device. For connection only to Class 1 LED Devices.
CLASS 1
LED PRODUCT
Preinstallation Information
Figure 53 shows the Telco and Metric slots and the
location of the preinstalled rack-mount flange on a
7-slot chassis.
Figure 52 shows two types of racks that you may use
to install the 7-slot chassis, 8-slot chassis, or 16-slot
chassis.
Figure 52 Rack Types
105
Figure 53 Preinstalled Rack-mount Flange Location and Slot
Types on the CoreBuilder 9000 7-slot Chassis
Preinstalled
flange pin
R
9
8
7
Telco rack
open slot
6
5
4
3
Metric rack
closed slot
■
■
If you install more than one chassis in a rack, install
the bottom chassis first. Make certain that there is
sufficient space between the bottom chassis and
the top chassis.
If you install the chassis in a Metric rack slot, install
the rack-mount clips and screws in the closed slots
of the rack-mount flanges. If you install the chassis
in Telco rack slots, position the chassis and then
install the screws and rack-mount clips in the open
slots.
■
2
1
If you want to use the optional cable management
device on a 7-slot chassis, install it on the right side
of the chassis, as you look at it from the front.
Install the chassis in the rack before you install a
cable management device. For detailed
information about installing a cable management
device, see the 7-Slot Chassis Quick Installation
Guide for the CoreBuilder 9000 Enterprise Switch.
APPENDIX B: SITE REQUIREMENTS, SAFETY, AND PREINSTALLATION INFORMATION
106
Figure 54 shows the Telco and Metric slots and the
location of the preinstalled rack-mount flange on
an 8-slot chassis.
Figure 55 Preinstalled Rack-mount Flange Location and Slot
Types on the CoreBuilder 9000 16-slot Chassis
Figure 54 Preinstalled Rack-mount Flange Location and Slot
Types on the CoreBuilder 9000 8-slot Chassis
®
CoreBuilder 9000
3
4
5
6
7
8
9
10
11
12
13
14
15
16
Preinstalled
flange pin
®
CoreBuilder 9000
3
4
5
6
7
8
9
Telco rack
open slot
10
Preinstalled
flange pin
Telco rack
open slot
Metric rack
closed slot
Figure 55 shows the Telco and Metric slots and the
location of the preinstalled rack-mount flange on a
16-slot chassis.
Metric rack
closed slot
■
If you want to use an optional cable management
device on a 8-slot chassis or a 16-slot chassis,
install it above or below the chassis (depending on
which type of device you choose). You can install
the chassis in the rack either before or after you
install a cable management device.
For detailed information about installing a cable
management device, see the Chassis Quick
Installation Guide for the CoreBuilder 9000
Enterprise Switch 8-slot Chassis and 16-slot
Chassis.
C
INTELLIGENT POWER SUBSYSTEM
The CoreBuilder® 9000 Enterprise Switch provides a
fault-tolerant, intelligent power supply subsystem.
The CoreBuilder 9000 7-slot chassis can contain two
power supplies, the 8-slot chassis can contain three
power supplies and the 16-slot chassis can contain
four power supplies.
The CoreBuilder 9000 intelligent power subsystem
supports:
■
930-watt and 820-watt AC load-sharing power
supplies
■
–48-volt DC power supplies
■
High power availability
■
Controller-based power verification features that
are designed to ensure optimal performance
This appendix contains the following topics:
■
CoreBuilder 9000 Power Supply Models
■
Intelligent Power Subsystem Features
■
Power Management
■
Power Supply Modes
■
Power Availability and Power Supply Capacity
CoreBuilder 9000 Power Supply Models
Table 13 lists the power supplies that the
CoreBuilder 9000 Enterprise Switch supports.
Table 13 CoreBuilder 9000 Power Supply Models
Model
Number
Chassis
Watts
Input
Power Type
3CB9EP9
7-slot
930
AC
3CB9EP8
8-slot
16-slot
820
AC
3CB9EP8D7
7-slot
–48-volt (930-watt)
DC
3CB9EP8D
8-slot
16-slot
–48-volt (820-watt)
DC
You cannot mix AC and DC input power supplies in
any CoreBuilder 9000 chassis.
108
APPENDIX C: INTELLIGENT POWER SUBSYSTEM
Intelligent Power Subsystem Features
Table 14 lists the intelligent power management
features.
Table 14 Intelligent Power Subsystem Features
Feature
Description
Load-sharing power
supplies
Provides evenly distributed power
consumption among all installed power
supplies. Enterprise Switch activity is
not disrupted if a power supply fails
because there is no changeover (and
hence, no changeover interval).
Front and rear
loading accessibility
Provides easy access for upgrades. As
your power needs increase over time, it
is easy to upgrade by adding a power
supply into the front of the 8-slot
chassis and 16-slot chassis, and into the
rear of the 7-slot chassis.
Dedicated power
supply bay cooling
Cools the power supply bay. Vent holes
and fan trays reduce the possibility that
an overheat condition in the power
supply bay may cause or contribute to a
failure of the chassis or its modules.
This feature works with other Switch
features to maintain normal chassis
internal operating temperature.
High power capacity Determines the current power limit.
The power mode and the amount of
power available determine the current
power limit. The actual power that is
delivered depends on whether you are
running in non-fault-tolerant mode or
in fault-tolerant mode.
Table 14 Intelligent Power Subsystem Features (continued)
Feature
Description
Controller
module-based,
software-driven,
power management
Confirms that there is enough power
for a new CoreBuilder® 9000 module.
Software-driven power management
(Intelligent Power Management) also
provides protection against the
possibility of a catastrophic power
failure. If the Switch is operating in
power fault-tolerant mode and a
power supply fails, an installed EME
powers off selected (low power class)
CoreBuilder 9000 modules until the
power deficit is corrected. Intelligent
Power Management ensures that key
components and resources continue to
operate, even under extreme failure
conditions.
Power Management
The Enterprise Management Engine (EME) works with
the Enterprise Management Controller (EMC) to
protect network integrity using power management.
The EME determines how much power a
CoreBuilder 9000 module requires before it permits
the module to power on.
The EME manages power use in the chassis by:
■
Preventing newly installed modules from receiving
power when there is not enough power available.
■
Allowing you to prioritize the order in which
modules power off (if there is insufficient power
available).
Power Supply Modes
■
No single power supply is a dedicated standby
power supply.
Allowing you to implement fault-tolerant power,
which allows the chassis to reserve some of its
power capacity to protect against a power supply
failure.
To support redundancy, install one or more power
supplies beyond the minimum number that is
required to support the chassis and its modules
(n + 1 redundancy).
Rather, a factory-defined power limit (which is
based on the number of installed power supplies)
ensures that power that is equivalent to at least
one power supply is available to replace power
that is lost when a power supply fails.
■
Power Supply Modes
The CoreBuilder 9000 Enterprise Switch runs in either
of two power supply modes:
■
Power Fault Tolerant
■
Power Non-Fault-Tolerant
For optimal power redundancy in either power mode,
run the CoreBuilder 9000 Enterprise Switch with at
least one power supply more than the minimum
number that is required to operate all installed
modules and all modules that you plan to install.
Fault-tolerant mode — A user-selectable mode in
which power that is equivalent to one power supply is
held in reserve. This reserve power is not available to
installed modules until a power supply fails, or until
you switch the power mode from power
fault-tolerant mode to power non-fault-tolerant
mode.
While the chassis is running in fault-tolerant mode:
■
All installed power supplies are functioning and
contributing power to the chassis and modules.
109
The amount of power that installed modules in a
chassis require must not be greater than the
number of installed power supplies, minus one
(n-1). When you reserve power that is equivalent
to one power supply in power fault-tolerant mode,
the failure of a single power supply has no impact
on installed modules that are already powered on.
If a power supply fails while the Switch is running in
power fault-tolerant mode:
■
EMEs respond by automatically disabling power
fault-tolerant mode.
■
Power formerly reserved (unavailable to installed
modules) is made available by power class and slot
location to power-enabled CoreBuilder 9000
modules to prevent them from powering off (as an
attempt to bring power consumption under the
now-reduced power budget).
■
All modules that had power before the power
supply failure continue to receive power without
interruption.
■
Upon power supply recovery, the EME
automatically reenables power fault-tolerant
mode.
APPENDIX C: INTELLIGENT POWER SUBSYSTEM
110
Operate the CoreBuilder 9000 Enterprise Switch in
power fault-tolerant mode to ensure that power that
is equivalent to at least one power supply is available
to replace power that is lost if a single power supply
fails.
Non-fault tolerant mode — A user-selectable mode
in which 100 percent of the power that can be
allocated to all modules is available to them (no
power is held in reserve). This is the default mode for
power supplies as shipped.
To set the CoreBuilder 9000 Enterprise Switch to
power fault-tolerant mode or to power
non-fault-tolerant mode, enter the set power mode
command at the EME prompt.
While the Switch is running in power
non-fault-tolerant mode, the amount of power that is
available to modules is determined by the number
and type of power supplies that are installed.
When you attempt to set the CoreBuilder 9000
Enterprise Switch to power fault-tolerant mode, EMEs
determine if there is sufficient unallocated power
budget available to place power that is equivalent to
one power supply in reserve.
If a power supply fails while the chassis is running in
power non-fault-tolerant mode:
■
If there is sufficient unallocated power budget, the
CoreBuilder 9000 Enterprise Switch sets to power
fault-tolerant mode.
■
If there is insufficient unallocated power budget,
the CoreBuilder 9000 Enterprise Switch remains in
power non-fault-tolerant mode.
To prevent management modules from automatically
disabling power fault-tolerant mode in response to a
power supply failure, ensure that the number of
installed power supplies is equal to or greater
than n-2 (two extra power supplies). In a
CoreBuilder 9000 Enterprise Switch with at least two
extra installed power supplies, n-1 power supplies
continue to be available to run the system in power
fault-tolerant mode, even after a single power supply
fails.
If a power supply failure occurs under any condition,
an alert is sent to the management application.
■
Installed management modules may shut down
selected CoreBuilder 9000 interface modules and
switch fabric modules in an attempt to bring
installed module power consumption under the
now-reduced power budget.
■
Installed interface modules and switch fabric
modules continue to operate without interruption
if the output of remaining installed power supplies
is sufficient to provide adequate power to all
installed modules.
Power Availability and Power Supply Capacity
Power Availability and Power Supply Capacity
This section explains the following concepts
concerning power supply management:
■
Power available to modules — The amount of
power that is available to CoreBuilder 9000
modules is determined by the number of power
supplies that are installed.
■
Power capacity of a power supply — The
power capacity of a power supply unit is the
maximum amount of power that the power supply
delivers.
When you manage power in your Switch, consider
the system overhead, that is, the power that the
Switch itself (including fans, signalling, and EMEs)
consumes. Before you install any new module into a
chassis, assess the power budget by calculating the
total power requirements for all installed modules,
fans, and management modules.
See the documentation that is supplied with each
module to determine your module power
requirements. Take into account any modules that
you plan to install, as well as those that are already
installed.
For information about how to manage power in your
Switch, see Chapter 5, “Configuring the Chassis
Using Management Commands” in the
CoreBuilder 9000 Enterprise Management Engine
User Guide that is on the Documentation CD-ROM.
111
112
APPENDIX C: INTELLIGENT POWER SUBSYSTEM
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
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
■
3Com Bulletin Board Service (3Com BBS)
■
3Com FactsSM Automated Fax Service
World Wide Web 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 library, 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.
APPENDIX D: TECHNICAL SUPPORT
114
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:
Country
Data Rate
Telephone Number
Hong Kong
Up to 14,400 bps
852 2537 5601
Italy
Up to 14,400 bps
39 2 27300680
Japan
Up to 14,400 bps
81 3 5977 7977
Mexico
Up to 28,800 bps
52 5 520 7835
P.R. of China
Up to 14,400 bps
86 10 684 92351
■
Hostname: ftp.3com.com
Taiwan, R.O.C.
Up to 14,400 bps
886 2 377 5840
■
Username: anonymous
U.K.
Up to 28,800 bps
44 1442 438278
■
Password: <your Internet e-mail address>
U.S.A.
Up to 53,333 bps
1 847 262 6000
You do not need a user name and password with
Web browser software such as Netscape Navigator
and Internet Explorer.
3Com Bulletin Board Service
The 3Com BBS contains patches, software, and drivers
for 3Com products. This service is available through
analog modem or digital modem (ISDN) 24 hours a
day, 7 days a week.
Access by Analog Modem
To reach the service by modem, set your modem to
8 data bits, no parity, and 1 stop bit. Call the
telephone number nearest you:
Country
Data Rate
Telephone Number
Australia
Up to 14,400 bps
61 2 9955 2073
Brazil
Up to 28,800 bps
55 11 5181 9666
France
Up to 14,400 bps
33 1 6986 6954
Germany
Up to 28,800 bps
4989 62732 188
Access by Digital Modem
ISDN users can dial in to the 3Com BBS using a digital
modem for fast access up to 64 Kbps. To access the
3Com BBS using ISDN, call the following number:
1 847 262 6000
3Com Facts Automated Fax Service
The 3Com Facts automated fax service provides
technical articles, diagrams, and troubleshooting
instructions on 3Com products 24 hours a day, 7 days
a week.
Call 3Com Facts using your Touch-Tone telephone:
1 408 727 7021
Support from Your Network Supplier
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.
115
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
■
Diagnostic error messages
■
Details about recent configuration changes,
if applicable
Here is a list of worldwide technical telephone
support numbers:
Country
Asia Pacific Rim
Australia
Hong Kong
India
Indonesia
Japan
Malaysia
New Zealand
Pakistan
Philippines
P.R. of China
Singapore
S. Korea
From anywhere in S. Korea:
From Seoul:
Taiwan, R.O.C.
Thailand
Telephone Number
1 800 678 515
800 933 486
+61 2 9937 5085
001 800 61 009
0031 61 6439
1800 801 777
0800 446 398
+61 2 9937 5085
1235 61 266 2602
10800 61 00137 or
021 6350 1590
800 6161 463
00798 611 2230
(0)2 3455 6455
0080 611 261
001 800 611 2000
116
APPENDIX D: TECHNICAL SUPPORT
Country
Europe
From anywhere in Europe, call:
Telephone Number
+31 (0)30 6029900 phone
+31 (0)30 6029999 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
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
1800 553117
1800 9453794
1678 79489
0800 0227788
800 11376
00800 3111206
0800 831416
0800 995014
900 983125
020 795482
0800 55 3072
0800 966197
Latin America
Argentina
Brazil
Chile
Colombia
Mexico
Peru
Puerto Rico
Venezuela
AT&T +800 666 5065
0800 13 3266
1230 020 0645
98012 2127
01 800 CARE (01 800 2273)
AT&T +800 666 5065
800 666 5065
AT&T +800 666 5065
North America
1 800 NET 3Com
(1 800 638 3266)
Enterprise Customers:
1 800 876-3266
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
Europe, South Africa, +31 30 6029900
and Middle East
+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
1800 553117
1800 9453794
1678 79489
0800 0227788
800 11376
00800 3111206
0800 831416
0800 995014
900 983125
020 795482
0800 55 3072
0800 966197
Returning Products for Repair
Country
Telephone Number
Fax Number
Latin America
1 408 326 2927
(not toll-free)
1 408 326 3355
(not toll-free)
U.S.A. and Canada
1 800 NET 3Com
(1 800 638 3266)
1 408 326 7120
(not toll-free)
Enterprise Customers:
1 800 876 3266
117
118
APPENDIX D: TECHNICAL SUPPORT
GLOSSARY
ambient air temperature
bandwidth
The temperature of air that surrounds any electrical
part or device. Usually refers to the effect of such
temperature in aiding or slowing down removal of
heat by radiation and convection from the part or
device in question.
ASIC
Data measured in bits per second that a channel can
transmit. The bandwidth of an Ethernet segment is
10 Mbps; the bandwidth for a Fast Ethernet and FDDI
segment is 100 Mbps; and the bandwidth for Gigabit
Ethernet is 1000 Mbps.
bridge
Application Specific Integrated Circuit. A chip that is
custom designed for a specific application.
Equipment that connects different LANs, allowing
communication between devices on separate LAN
segments. Bridges are protocol-independent, but
hardware-specific, with communication limited to the
data link layer (Layer 1) and physical layer (Layer 2) of
the OSI reference model.
ATM
Asynchronous Transfer Mode. A transfer method
used for LAN and WAN. ATM carries voice, video, and
data at speeds up to 2.2 Gbps and can integrate
geographically distant disparate networks. Also called
cell relay.
autonegotiation
A feature that allows some ports to automatically
identify and negotiate speed and duplex mode with a
receiving device.
BUS
The set of functions implemented in an ATM network
that provides LAN-to-LAN transmission support while
a LAN connection is being established.
bus topology
An architecture that has all of its nodes connected to
a single cable.
backbone
The main segment of a campus network, to which are
attached department networks, or ribs.
backplane
The main bus that carries data within a chassis.
campus network
A LAN that consists of several smaller LANs within
and between buildings.
GLOSSARY
120
cell
Data Terminal Equipment (DTE)
An ATM Layer protocol data unit (PDU) that has fixed,
rather than variable, length payloads.
The equipment that is connected to the common
carrier communications facility. The DTE is typically a
computer system or terminal.
client/server
A single-user computer that requests application or
network services from a server.
EMC
Enterprise Management Controller module. Provides
standby controller functions for an Enterprise
Management Engine (EME) in the CoreBuilder 9000
chassis.
CoS
Class of Service. This feature differentiates traffic into
classes and assigns prioritization to those classes.
collision
Overlapping transmission of two or more nodes onto
media. All data is unusable.
EME
Enterprise Management Engine. An SNMP-based
network management module that enables you to
configure and manage the 3Com CoreBuilder 9000
chassis and their modules.
connection
The concatenation of ATM Layer links to provide an
end-to-end information transfer capability to access
points.
connectionless communications
A form of packet-switching that relies on global
addresses in each packet rather than on predefined
virtual circuits.
connection-oriented communications
A form of packet-switching that requires a predefined
circuit from source to destination to be established
before data can be transferred.
Data Communications Equipment (DCE)
The equipment that establishes, maintains, and
terminates a data transmission connection.
end system / end station
A system where an ATM connection is terminated or
initiated. An originating end system initiates the ATM
connection, and a terminating end system terminates
the ATM connection.
enterprise network
A large network that connects most major points in a
company. Differs from a WAN in that it is typically
private and contained within a single organization.
Ethernet
A CSMA/CD, 10 Mbps, local area data network,
developed by Digital Equipment Corporation, Xerox
Corporation, and Intel. It is one of the most popular
baseband LANs in use.
GLOSSARY
Fast Ethernet
IEEE 802.3
A 100 Mbps local area data network technology.
The IEEE LAN protocol that specifies an
implementation of the physical layer and the MAC
sublayer of the data link layer. IEEE 802.3 uses
CSMA/CD access at a variety of speeds over a variety
of physical media. Extensions to the IEEE 802.3
standard specify implementations for Fast Ethernet.
fault-tolerant
The ability to prevent a device from failing by
supplying a backup device to take over in case of
failure. For example, reserve the power of a single
power supply to act as a backup if one of the other
power supplies fails.
121
IEEE 802.1D
The IEEE standard for bridging.
FDDI
Fiber Distributed Data Interface. LAN technology that
permits data transfer on fiber-optic cable at up to
100 Mbps over a dual, counter-rotating Token Ring.
Gigabit Ethernet
The IEEE standard for 1000 Mbps Ethernet;
compatible with existing 10/100 Ethernet standards.
The IEEE, with the help of the Gigabit Ethernet
Alliance, defines the standard for full duplex over
fiber-optic cable and short-haul copper cable.
IGMP
Internet Group Management Protocol. The protocol
that runs between hosts and their immediately
neighboring multicast routers. The mechanisms of the
protocol allow a host to inform its local router that it
wants to receive transmissions addressed to a specific
multicast group. Based on group membership
information learned from the IGMP, a router can
determine which, if any, multicast traffic needs to be
forwarded to each of its "leaf" subnetworks.
in-band
header
Protocol control information that is located at the
beginning of a protocol data unit.
hot swapping
A feature that allows specified components to be
removed and replaced while the rest of the device
continues to operate.
Transmission of auxiliary information, for example,
management messages, over the media that are also
used by the system users.
122
GLOSSARY
interface module
Modules that manage data on LAN segments and
receive commands from the EME through the
management bus. Interface modules pass data
through the switch fabric module. The data may get
sent back out to other modules or sent out through a
switch fabric module front panel port to another
device.
LANE
LAN Emulation. A way for legacy LANs and all
higher-layer protocols and applications to integrate
transparently with ATM networks.
Layer 2
Data-link layer of the OSI Reference Model. Defines
the rules for sending and receiving data across the
physical connection between two systems.
Internet Protocol (IP)
The protocol that governs packet forwarding within
the Transmission Control Protocol/Internet Protocol
(TCP/IP) suite of standards that were developed for
and are used on the Internet.
Layer 3
Network layer of the OSI Reference Model. Defines
protocols for routing data by opening and
maintaining a path on the network between systems
to ensure that data arrives at the correct destination
node.
interoperability
The ability of computer equipment from one vendor
to communicate and exchange information with
equipment from other vendors.
IP address
Internet Protocol address. A unique identifier for a
machine that is attached to a network that is made
up of two or more interconnected local area or wide
area networks.
LAN
Local Area Network. A data communications network
that spans a limited geographical area, such as a
single building or campus. It provides communication
between computers and peripherals. LANs have small
geographical size, high data rate, and low error rate.
LED
Light emitting diode. Semiconductor device that
emits light produced by converting electrical energy.
Status lights on hardware devices are typically LEDs.
load-sharing
The ability of a router to distribute traffic over all its
network ports that are the same distance from the
destination address. Good load-balancing algorithms
use both line speed and reliability information. Load
balancing increases the utilization of network
segments, thus increasing effective network
bandwidth.
local management
Local management of a network device via a
connected terminal.
GLOSSARY
123
multicast
MIB
A special form of broadcast where copies of the
packet are delivered only to a subset of all possible
destinations.
Management Information Base. A database of
network management information that describes the
specifics of individual network components.
multiplexing
MLAN
A function within a layer that interleaves the
information from multiple connections into one
connection.
High speed management busses that provide
intermodule communication and network and
network connectivity to the SMC (System
Management Component).
Network-to-Network Interface (NNI)
MMF
The interface between two network nodes.
Multi-mode fiber. An optical fiber with a core
diameter of from 50 to 100 microns. It is the most
commonly used optical fiber for short distances such
as LANs. Light can enter the core at different angles,
making it easier to connect the light source. However,
light rays bounce around within the core causing
some distortion and providing less bandwidth than
singlemode fiber.
modem
Modulator/demodulator. The device that converts
serial digital data from a transmitting terminal to a
signal suitable for transmission over a telephone
(analog) channel. At the other end, another modem
converts the analog signal to digital data for use by
the computers. A modem port provides the interface
for remote management of CoreBuilder® systems. An
external modem can be connected to the serial port
of the system processor.
non-fault tolerant mode
When a device cannot reserve the power of a single
power supply to act as backup if one of the other
power supplies fails.
OSPF
Open Shortest Path First. Interior Gateway Protocol
for TCP/IP networks; uses the Dijkstra algorithm, a
link-state routing algorithm that calculates routes for
packets based on a number of factors, including least
hops, speed of transmission lines, and congestion
delays.
out-of-band
Transmission of auxiliary information, for example,
management messages, over a medium other than
that used by the system users.
GLOSSARY
124
packet
RS-232 serial port
Any logical block of data that is sent over a network.
It contains a header that consists of control
information such as senders, receivers, and error
control data, as well as the message itself.
protocol
A port that changes the parallel arrangement of data
within computers to the serial (one after the other)
form used on data transmission links. This port can be
used for dedicated local management access.
SC connector
A set of rules for communicating between computers.
The rules dictate format, timing, sequencing, and
error control.
A fiber-optic cable connector that uses a push-pull
latching mechanism similar to common audio and
video cables. For bi-directional transmission, two fiber
cables and two SC connectors are generally used.
PDU
Protocol Data Unit. A unit of data that is specified in a
layer protocol and consists of protocol control
information and layer user data.
SCC
Quality of Service. Term to describe delay, throughput,
bandwidth, and so forth of a virtual connection; a
measure of the service quality provided to a user.
SCI
System Controller Component. Supports Switch
monitoring, module inventory management, and
power management.
QoS
RJ-45 connector
Serial communication interface. An IEEE standard for
a high-speed bus that uses wire or fiber-optic cable.
server
A telephone connector that holds up to eight wires.
RJ-45 plugs and sockets are used in 10Base-T
Ethernet devices.
A computer that provides clients with application and
network services. Servers are shared by multiple users.
SMC
router
A device that connects two remote networks by
selectively forwarding messages between them. A
router differs from a bridge and a gateway in that it
selectively forwards information between the
networks. Routers can be implemented in pairs, or a
router may communicate directly with a computer.
System Management Component. The central
network management agent that provides central
network management operations within the Switch.
SNMP
Simple Network Management Protocol. A protocol
originally designed to be used in managing TCP/IP
internets.
GLOSSARY
SNMP is presently implemented on a wide variety of
computers and networking equipment and may be
used to manage many aspects of network and end
station operation.
spanning tree
A technique that detects loops in a network and
logically blocks the redundant paths, ensuring that
only one route exists between any two LANs; used in
an IEEE 802.1d bridged network.
traces
Links that are star-wired to the slot with the switch
fabric module, providing primary high-speed links for
each interface module.
trunk
Physical and logical connection between two switches
across which network traffic travels.
twisted pair
Two insulated wires that are wrapped around each
other for protection against interference. Each wire is
insulated, and the pair is usually covered by an overall
casing. This type of wiring is generally used for
connecting 10BASE-T, 100BASE-T, and FDDI systems.
star-wired
LAN topology in which end points on a network are
connected to a common central switch by
point-to-point links. A ring topology that is organized
as a star implements a unidirectional closed-loop star,
instead of point-to-point links.
UART
Universal asynchronous receiver/transmitter. A chip
that is used as communications (COM) port in
personal computers. It combines the transmitting and
receiving circuitry needed for asynchronous
communications over a serial line.
switch fabric module
A central backplane aggregator for the
CoreBuilder 9000 Enterprise Switch.
topology
The physical or logical placement of stations on a
network in relation to one another.
UTP
Unshielded Twisted Pair. Common, phone-grade,
twisted pair wiring that is not provided with a
protective shielding against outside interference.
torque
The amount of force exerted to tighten a screw, bolt,
or nut.
125
WAN
Wide Area Network. A data communications network
that spans very large geographical areas.
126
GLOSSARY
VLAN
Virtual LAN. A logical association that allows users to
communicate as if they were physically connected to
a single LAN, independent of the actual physical
configuration of the network.
warm swapping
A feature that allows you to remove and replace a
power supply in the 7-slot chassis when the
Standby/On switch is in the Standby position or
remove and replace a power supply in the 8-slot
chassis or 16-slot chassis when the On/Off switch is in
the Off position, without disconnecting the AC input
power cord.
wiring closet
A central area that is used for wiring networking
systems and telephone communication systems.
10/100
Both 10 Mbps and 100 Mbps on the same port.
100BASE-FX
A 100BASE-FX Fast Ethernet Switching Module that
has ten 100 Mbps Ethernet fiber-optic front panel
ports. These ports interface to one 1-Gigabit
non-blocking port on the backplane. It is an
intelligent module that has its own embedded agent.
A 100BASE-FX (MMF-SC) Fast Ethernet Multiprotocol
Router Module that has ten 100 Mbps front-panel
external ports of full-duplex 100BASE-FX, using SC
(Subscriber Connector) connectors over MMF
(multi-mode fiber) and one Gigabit Ethernet (GEN)
port that connects to the backplane.
10/100BASE-TX
10/100BASE-TX Fast Ethernet Switching Modules that
have twenty or thirty-six 10/100 Mbps RJ-45 front
panel ports. These ports interface to a maximum of
two 1–Gigabit non-blocking ports on the backplane.
They are intelligent modules that have their own
embedded agent.
A 10/100BASE-TX Fast Ethernet Multiprotocol Router
Module that has twelve 10/100 Mbps RJ-45 front
panel ports. These ports interface to a maximum of
two 1–Gigabit non-blocking ports on the backplane.
It is an intelligent module that has its own embedded
agent.
1000BASE-SX
A Gigabit Ethernet (GEN) Interface Module that
serves as a 2–Gigabit data channel between the
Gigabit Ethernet Switch Fabric Module and other
802.3z–compliant Gigabit Ethernet devices. GEN
Interface Modules use SC connectors. Ports on this
module use an 850-nanometer, multimode, optical
transceiver.
1000BASE-LX
A Gigabit Ethernet (GEN) Interface Module that
serves as a 2–Gigabit data channel between the
Gigabit Ethernet Switch Fabric Module and other
802.3z–compliant Gigabit Ethernet devices. GEN
Interface Modules use SC connectors. Ports on this
module use an 1300-nanometer, multi/single-mode,
optical transceiver.
INDEX
Numbers
16-slot chassis
fan tray 39
power supplies 36, 37, 38
regulatory compliances 94
16-slot chassis specifications
environmental 93
physical 93
power 94
16-slot chassis warnings
safety 94
16-slot chassis wattage
power supply 94
16-slot Switch features 33
3Com bulletin board service (3Com BBS) 114
3Com Facts 114
3Com URL 10, 113
–48-volt DC power supply 18, 28, 36, 38
16-slot 38
7-slot 17
8-slot 28
7-slot chassis
fan tray 19
power supplies 17, 18
regulatory compliances 90
7-slot chassis specifications
environmental 90
physical 89
power 90
7-slot Switch features 12, 13
820-watt power supply 27, 36, 95
8-slot chassis
fan tray 29
power supplies 27
regulatory compliances 92
8-slot chassis specifications
environmental 91
physical 91
power 92
8-slot rear view 22
8-slot Switch features 23
930-watt power supply 16, 95
A
access mechanisms
Administration Console 43
EME 47
Transcend Network Control Services 46
Web Management 46
Adobe URL 61
ambient temperature, maximum 90, 97
amperage
16-slot chassis 94
7-slot chassis 90, 103
8-slot chassis 92
architecture
backplane, 16-slot chassis 35
backplane, 7-slot chassis 15
backplane, 8-slot chassis 25
chassis management 13, 24, 34
Asynchronous Transfer Mode (ATM)
features 44
interface modules 48
switch fabric module 20, 30, 40
B
backplane 23
backplane, features
16-slot 35
7-slot 15
8-slot 26
backplane, passive 33
bandwidth capacity 13, 23, 33
bezel, removing 78, 82
bulletin board service 114
busses 16, 26, 36
C
cable management 97, 98
CD-ROM documentation 8, 61
cell switch fabric module 44
cell-based interface module 48
chassis
16-slot front view 32
16-slot rear view 32
7-slot front view 12
7-slot rear view 12
8-slot front view 21
8-slot rear view 22
modules 41
rack guidelines 98, 104
setup tasks, 16-slot 59
setup tasks, 7-slot 58
setup tasks, 8-slot 59
slot restrictions 51
chassis fan tray
16-slot 39
7-slot 19
8-slot 29
128
INDEX
chassis front and rear view
16-slot 32
7-slot 12
8-slot 22
chassis power supplies
16-slot 37
7-slot 16
8-slot 27, 28
chassis specifications
16-slot 93
7-slot 89
8-slot 91
components
16-slot chassis 31
7-slot chassis 11
8-slot chassis 21
connector types
fan tray 72, 87
interface modules 48
management modules 46
power supply 67, 69, 80, 83
switch fabric modules 45
conventions
notice icons, About This Guide 7
text, About This Guide 7
country requirements, power 101
D
depth
16-slot chassis 93
7-slot chassis 89
8-slot chassis 91
dimensions, chassis
16-slot 93
7-slot chassis 89
8-slot chassis 91
distance guidelines
chassis clearance in rack 100
documentation 9, 52
Documentation CD-ROM 8, 61
downloads 15, 25, 35
E
EMC (Enterprise Management Controller) 41
EME (Enterprise Management Engine) 14, 24,
25, 34, 46
character display 55
initial setup tasks 57
LEDs 55
guidelines
fan trays 71, 85, 86
power supplies 65, 78
precautionary 98
rack installation 98, 104
site location 97
H
F
fan tray
16-slot 39
7-slot 19
8-slot 29
replacing 63, 75
Fast Ethernet 48
Fast Ethernet switching modules
types 48
fault-tolerant power mode 109
fax service 10
fax service (3Com Facts) 114
features
16-slot Switch 33
7-slot Switch 12, 13
8-slot Switch 23
management 13, 24, 34
power management 109
fiber-optic warnings 104
flanges, chassis 106
frame-based interface modules 48
G
Gigabit Ethernet (GEN) Switch Fabric
module 20, 30, 40, 42
Gigabit Ethernet interface modules 48
guide pins
fan tray 86
power supply 67, 69, 80, 83
height
16-slot chassis 93
7-slot chassis 89
8-slot chassis 91
hot swapping 12
How to find documentation on Web 61
humidity specifications
16-slot 93
7-slot 90
8-slot 91
I
installation guidelines
fan tray 71, 86
power supplies 76, 77
rack-mount 99, 105
site 97
intelligent power subsystem
distributed power output 108
front-loading power supplies 108
power delivered 108
power modes 109
interface modules 48
ATM 50
document list 53
Fast Ethernet 48
Gigabit Ethernet 49
switching 48
interfaces supported 95
16-slot 95
7-slot 91
8-slot 93
inventory 14
INDEX
L
P
laser and LED warnings 103
Layer 3 router switching modules 49
LEDs, EME 55
location requirements 97
password, EME 14, 25, 34
PDF (Portable Document Format) files 61
port densities
ATM switch fabric 44
ports
interface modules 48
switch fabric modules 45, 46
power
budget 64
cords 17, 27, 37
fault-tolerant mode 109
management 14, 24, 34
modes 109
non-fault-tolerant mode 110
redundancy 109, 110
requirements 101
subsystem features 108
supplies, –48-volt DC 18
supplies, 820-watt 37
power supplies 101, 102
16-slot 36, 37, 38
7-slot 17
8-slot 27
description 101, 102
power supply models 107
power-on character display, EME 56
prerequisites
location 97
rack 98, 104
protocols supported 44
M
maintenance procedures
replacing a fan tray 71, 85
replacing a power supply 65, 68, 77
routine maintenance 63, 75
user-serviceable parts 63, 64, 70, 75, 76, 85
management architecture 13, 24, 34
management functions
EME 14, 25, 34
power 14, 25, 35
Management LANs (MLANs) 16, 26, 36
management modules 13, 24, 34, 46
document list 52
module types 30, 40
interface 42, 122
management 46
switch fabric 42, 122
monitoring the chassis 47
multiprotocol module 49
N
navigating CD documents 61
network management functions 14, 25, 34
network supplier support 115
non-blocking Gigabit Ethernet ports 41
non-fault tolerant power mode 110
O
online technical services 113
R
rack installation 98, 99
rack slots, chassis 105, 106
redundancy
power supplies 109
switch fabric modules 45
regulatory compliances
16-slot chassis 94
7-slot chassis 90
8-slot chassis 92
129
regulatory standards
power supplies 95
replacing
fan tray 63, 68, 71, 75, 85
power supply 65, 68, 77
resetting the chassis
effect on switch fabric modules 45
returning products for repair 116
S
safety 63, 64, 75, 98, 104
standards supported 90, 92, 94, 95
SCC (System Controller Component) 47
SCI (Serial Communication Interface) 15, 26,
36
search engine, document 62
service and support 10
3Com URL 10
World Wide Web (WWW) 10
setup tasks 58, 59
site requirements 97
slot assignments, module 51
slot types 46
SMC (System Management Component) 47
SNMP (Simple Network Management
Protocol) 46
support 14, 15, 25, 35
Spanning Tree Protocol support 44
specifications
16-slot chassis 93
7-slot chassis 89
8-slot chassis 91
switch fabric modules 13, 42, 45
document list 53
redundancy 45
reset 45
130
INDEX
T
W
technical support
3Com Facts 10
3Com URL 10, 113
bulletin board service 114
fax service 114
network suppliers 115
product repair 116
World Wide Web (WWW) 10
telnet support 35
temperature specifications
16-slot 93
7-slot 90
8-slot 91
terminal management 13, 24, 34
torque specification for screws 99
Transcend Network Control Services 12, 13,
23, 24, 33, 34
traps 63, 75
warm swapping 17
warnings
fiber-optic 104
safety 63, 64, 75, 76, 90, 91, 92, 94, 95
warranty information 131
wattage, power supply
16-slot chassis 93
7-slot chassis 90
8-slot chassis 92
Web management 15, 25, 35, 52
weight
16-slot chassis 93
7-slot chassis 89
8-slot chassis 91
width
16-slot chassis 93
7-slot chassis 89
8-slot chassis 91
World Wide Web (WWW) 10, 113
3Com address 61
Adobe address 61
browser 62
U
URL (Uniform Resource Locator), 3Com 10
V
ventilation requirements 111
16-slot chassis 93
7-slot chassis 90
8-slot chassis 91
view
16-slot chassis 32
7-slot chassis 11
8-slot chassis 22
viewing PDF files 61
voltages 15, 26, 36
16-slot chassis 94
7-slot chassis 90
8-slot chassis 92
3Com Corporation LIMITED WARRANTY
CoreBuilder® 9000 Enterprise Switch
HARDWARE
YEAR 2000 WARRANTY
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 one
(1) year from the date of purchase from 3Com or its authorized reseller.
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
before the later of April 1, 2000, or 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.
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 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 warranty period, whichever is longer.
SOFTWARE
3Com warrants to Customer that each software program licensed from it 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. 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 noncompatibility 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 THIRD-PARTY SOFTWARE,
THE USE OF WHICH IS GOVERNED BY A SEPARATE END-USER LICENSE AGREEMENT.
THIS 3COM WARRANTY DOES NOT APPLY TO SUCH THIRD-PARTY SOFTWARE. FOR
THE APPLICABLE WARRANTY, PLEASE REFER TO THE END-USER LICENSE AGREEMENT
GOVERNING THE USE OF SUCH SOFTWARE.
Any software update or replaced or repaired product will carry a Year 2000 Warranty
for ninety (90) days after purchase or until April 1, 2000, whichever is later.
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 preauthorized
by 3Com with a Return Material Authorization (RMA) number or User Service Order
(USO) number 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.
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 by advance replacement. 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 advance replacement products is subject to local legal requirements and
may not be available in all locations. When an advance 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.
Advance Replacement is provided for ninety (90) days, after which time it may be
available for a specified fee. 3Com will make commercially reasonable efforts to ship the
replacement product not later than five (5) business days after receiving the request for
advance replacement, but may be delayed due to product availability or export or
import procedures. The shipment of advance replacement products is subject to local
legal requirements and may not be available in all locations. When an advance
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 advance replacement is different from the
fee-based Advance Hardware Replacement Service, which is available as a contracted
service offering.
INCLUDED SERVICES:
Telephone Support, with coverage for basic troubleshooting only, will be provided for
ninety (90) days from the date of purchase, on a commercially reasonable efforts basis.
Please refer to the Technical Support appendix in the Getting Started Guide for
telephone numbers.
3Com’s Web and Bulletin Board Services provide 3Knowledgebase, bug tracking,
documentation, release notes, and some software maintenance releases at no charge.
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 NONINFRINGEMENT, 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.
D ISCLAIMER
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.
G OVERNING LAW
This Limited Warranty shall be governed by the laws of the State of California, U.S.A.,
excluding its conflicts of laws principles and excluding the United Nations Convention
on Contracts for the International Sale of Goods.
3Com Corporation
5400 Bayfront Plaza, P.O. Box 58145, Santa Clara, CA 95052-8145
(408) 326-5000
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