Cisco GSR12/60 - 12012 Router -AnyLAN Operator's manual

170 West Tasman Drive
San Jose, CA 95134-1706
USA
http://www.cisco.com
Cisco Systems, Inc.
Corporate Headquarters
Tel: 800 553-NETS (6387)
Fax:
408 526-4000
408 526-4100
Cisco 12012
Gigabit Switch Router
Installation and
Configuration Guide
Customer Order Number: DOC-12012GSR-ICG=
Text Part Number: 78-4331-04

THE SPECIFICATIONS AND INFORMATION REGARDING THE PRODUCTS IN THIS MANUAL ARE SUBJECT TO CHANGE WITHOUT
NOTICE. ALL STATEMENTS, INFORMATION, ANDRECOMMENDATIONS IN THIS MANUAL ARE BELIEVED TO BE ACCURATE BUT ARE
PRESENTED WITHOUT WARRANTY OF ANY KIND, EXPRESS OR IMPLIED. USERS MUST TAKE FULL RESPONSIBILITY FOR THEIR
APPLICATION OF ANY PRODUCTS.
THE SOFTWARE LICENSE AND LIMITED WARRANTY FOR THE ACCOMPANYING PRODUCT ARE SET FORTH IN THE INFORMATION
PACKET THAT SHIPPED WITH THE PRODUCT AND ARE INCORPORATED HEREIN BY THIS REFERENCE. IF YOU ARE UNABLE TO
LOCATE THE SOFTWARE LICENSE OR LIMITED WARRANTY, CONTACT YOUR CISCO REPRESENTATIVE FOR A COPY.
The following information is for FCC compliance of Class A devices: This equipment has been tested and found to comply with the limits for a Class A
digital device, pursuant to part 15 of the FCC rules. These limits are designed to provide reasonable protection against harmful interference when the
equipment is operated in a commercial environment. This equipment generates, uses, and can radiate radio-frequency energy and, if not installed and used
in accordance with the instruction manual, may cause harmful interference to radio communications. Operation of this equipment in a residential area is
likely to cause harmful interference, in which case users will be required to correct the interference at their own expense.
The following information is for FCC compliance of Class B devices: The equipment described in this manual generates and may radiate radio-frequency
energy. If it is not installed in accordance with Cisco’s installation instructions, it may cause interference with radio and television reception. This equipment
has been tested and found to comply with the limits for a Class B digital device in accordance with the specifications in part 15 of the FCC rules. These
specifications are designed to provide reasonable protection against such interference in a residential installation. However, there is no guarantee that
interference will not occur in a particular installation.
You can determine whether your equipment is causing interference byturning it off.If the interference stops, it was probably caused by the Cisco equipment
or one of its peripheral devices. If the equipment causes interference to radio or television reception, try to correct the interference by using one or more of
the following measures:
• Turn the television or radio antenna until the interference stops.
• Move the equipment to one side or the other of the television or radio.
• Move the equipment farther away from the television or radio.
• Plug the equipment into an outlet that is on a different circuit from the television or radio. (That is, make certain the equipment and the television or radio
are on circuits controlled by different circuit breakers or fuses.)
Modifications to this product not authorized by Cisco Systems, Inc. could void the FCC approval and negate your authority to operate the product.
The following third-party software may be included with your product and will be subject to the software license agreement:
CiscoWorks software and documentation are based in part on HP OpenView under license from the Hewlett-Packard Company. HP OpenView is a
trademark of the Hewlett-Packard Company. Copyright © 1992, 1993 Hewlett-Packard Company.
The Cisco implementation of TCP header compression is an adaptation of a program developed by the University of California, Berkeley (UCB) as part of
UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981, Regents of the University of California.
Network Time Protocol (NTP). Copyright © 1992, David L. Mills. The University of Delaware makes no representations about the suitability of this
software for any purpose.
Point-to-Point Protocol. Copyright © 1989, Carnegie-Mellon University. All rights reserved. The name of the University may not be used to endorse or
promote products derived from this software without specific prior written permission.
The Cisco implementation of TN3270 is an adaptation of the TN3270, curses, and termcap programs developed by the University of California, Berkeley
(UCB) as part of UCB’s public domain version of the UNIX operating system. All rights reserved. Copyright © 1981-1988, Regents of the University of
California.
Cisco incorporates Fastmac and TrueView software and the RingRunner chip in some Token Ring products. Fastmac software is licensed to Cisco by Madge
Networks Limited, and the RingRunner chip is licensed to Cisco by Madge NV. Fastmac, RingRunner, and TrueView are trademarks and in some
jurisdictions registered trademarks of Madge Networks Limited. Copyright © 1995, Madge Networks Limited. All rights reserved.
XRemote is a trademark of Network Computing Devices, Inc. Copyright © 1989, Network Computing Devices, Inc., Mountain View, California. NCD
makes no representations about the suitability of this software for any purpose.
The X Window System is a trademark of the X Consortium, Cambridge, Massachusetts. All rights reserved.

NOTWITHSTANDING ANY OTHER WARRANTY HEREIN, ALL DOCUMENT FILES AND SOFTWARE OF THESE SUPPLIERS ARE
PROVIDED “AS IS” WITH ALL FAULTS. CISCO AND THE ABOVE-NAMED SUPPLIERS DISCLAIM ALL WARRANTIES, EXPRESSED OR
IMPLIED, INCLUDING, WITHOUT LIMITATION, THOSE OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
NONINFRINGEMENT OR ARISING FROM A COURSE OF DEALING, USAGE, OR TRADE PRACTICE.
IN NO EVENT SHALL CISCO OR ITS SUPPLIERS BE LIABLE FOR ANY INDIRECT, SPECIAL, CONSEQUENTIAL, OR INCIDENTAL
DAMAGES, INCLUDING, WITHOUT LIMITATION, LOST PROFITS OR LOSS OR DAMAGE TO DATA ARISING OUT OF THE USE OR
INABILITY TO USE THIS MANUAL, EVEN IF CISCO OR ITS SUPPLIERS HAVE BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGES.
CCIP, CCSP, the Cisco Arrow logo, the Cisco Powered Network mark, Cisco Unity, Follow Me Browsing, FormShare, and StackWise are trademarks of
Cisco Systems, Inc.; Changing the Way We Work, Live, Play, and Learn, and iQuick Study are service marks of Cisco Systems, Inc.; and Aironet, ASIST,
BPX, Catalyst, CCDA, CCDP, CCIE, CCNA, CCNP, Cisco, the Cisco Certified Internetwork Expert logo, Cisco IOS, the Cisco IOS logo, Cisco Press,
Cisco Systems, Cisco Systems Capital, the Cisco Systems logo, Empowering the Internet Generation, Enterprise/Solver, EtherChannel, EtherFast,
EtherSwitch, Fast Step, GigaDrive, GigaStack, HomeLink, Internet Quotient, IOS, IP/TV, iQ Expertise, the iQ logo, iQ Net Readiness Scorecard,
LightStream, Linksys, MeetingPlace, MGX, the Networkers logo, Networking Academy, Network Registrar, Packet, PIX, Post-Routing, Pre-Routing,
ProConnect, RateMUX, Registrar, ScriptShare, SlideCast, SMARTnet, StrataView Plus, SwitchProbe, TeleRouter, The Fastest Way to Increase Your
Internet Quotient, TransPath, and VCO are registered trademarks of Cisco Systems, Inc. and/or its affiliates in the United States and certain other countries.
All other trademarks mentioned in this document or Website are the property of their respective owners. The use of the word partner does not imply a
partnership relationship between Cisco and any other company. (0403R)
Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
Copyright © 1997–2004, Cisco Systems, Inc.
All rights reserved.

Table of Contents v
CONTENTS
About This Guide xix
Document Objectives xix
Audience xix
Document Organization xx
Document Conventions xxi
Obtaining Documentation xxiv
Cisco.com xxiv
Ordering Documentation xxv
Documentation Feedback xxv
Obtaining Technical Assistance xxv
Cisco Technical Support Website xxvi
Submitting a Service Request xxvi
Definitions of Service Request Severity xxvii
Obtaining Additional Publications and Information xxvii
Chapter 1 Product Overview 1-1
Physical and Functional Overviews 1-2
Gigabit Route Processor 1-4
GRP Memory Components 1-7
System Status LEDs 1-10
Soft Reset Switch 1-11
PCMCIA Slots 1-12
Asynchronous Serial Ports 1-12
Ethernet Port 1-12
Performance Route Processor 1-13
PRP Memory Components 1-17
System Status LEDs 1-20
Soft Reset Switch 1-21
Flash Disk Slots 1-21
Asynchronous Serial Ports 1-22

vi Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
Ethernet Ports 1-22
Line Cards 1-22
Alarm Card 1-23
Switch Fabric 1-25
Power Supplies 1-28
AC-Input Power Supply 1-29
DC-Input power Supply 1-30
Power Distribution 1-32
Blower Module 1-34
Air Filter 1-37
Cable-Management System 1-37
Maintenance Bus 1-39
System Specifications 1-40
Agency Approvals 1-42
Chapter 2 Preparing for Installation 2-1
Safety Recommendations 2-2
Lifting Guidelines 2-3
Safety with Electricity 2-4
Preventing Electrostatic Discharge Damage 2-5
Laser Safety 2-6
Site Requirement Guidelines 2-6
Rack-Mounting Guidelines 2-7
Airflow Guidelines 2-10
Temperature and Humidity Guidelines 2-10
Power Guidelines 2-11
AC-Powered Systems 2-12
DC-Powered Systems 2-14
System Grounding Connection Guidelines 2-15
Site Wiring Guidelines 2-15
SONET Connection Guidelines 2-16
Power Budget 2-17
Approximating the Line Card Power Margin 2-18
Multimode Power Budget Example with Sufficient Power for
Transmission 2-20

Table of Contents vii
Multimode Power Budget Example of Dispersion Limit 2-20
Single-Mode Transmission 2-21
SONET Single-Mode Power Budget Example 2-21
Using Statistics to Estimate the Power Budget 2-22
Tools for Installation 2-22
Unpacking the Cisco 12012 2-23
Checking the Shipping Packaging Contents 2-23
Site Log 2-24
Chapter 3 Installing a Cisco 12012 3-1
Installing the Brace Bar 3-3
Removing the Cisco 12012 Components before Installing the Frame 3-4
Removing the Blower Modules 3-5
Removing Cards from the Card Cage Assembly 3-7
Removing the Cards from the Upper Card Cage 3-8
Removing the Cards from the Lower Card Cage 3-10
Removing a DC-Input Power Supply 3-14
Removing an AC-Input Power Supply 3-16
Removing the Card Cage Assembly 3-18
Rack-Mounting the Frame 3-20
Reinstalling the Cisco 12012 Components after Installing the
Frame 3-23
Reinstalling the Card Cage Assembly 3-24
Reinstalling the Blower Modules 3-25
Reinstalling the Cards in the Upper Card Cage 3-26
Reinstalling the Cards in the Lower Card Cage 3-28
Connecting Line Card Cables 3-30
Connecting Route Processor Cables 3-33
GRP Console and Auxiliary Port Connection Equipment 3-33
GRP Console Port Signals 3-35
GRP Auxiliary Port Signals 3-35
GRP Ethernet Connection Equipment 3-36

viii Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
PRP Console and Auxiliary Port Connection Guidelines 3-40
PRP Console Port Signals 3-42
PRP Auxiliary Port Signals 3-42
PRP Ethernet Connection Equipment 3-43
PRP Ethernet Connections 3-44
Connecting Alarm Card Cables 3-48
Connecting System Grounding 3-50
Connecting Power 3-53
Reinstalling an AC-Input Power Supply 3-54
Reinstalling a DC-Input Power Supply 3-57
Chapter 4 Observing System Startup and Performing a Basic Configuration 4-1
Checking Connections in Preparation for System Startup 4-2
Starting the System and Observing Initial Conditions 4-3
Manually Booting the System 4-7
Configuring the Cisco 12012 4-8
Performing a Basic Manual Configuration Using the SetupFacility or the
setup Command 4-8
Configuring the Global Parameters 4-9
Configuring Interfaces 4-15
Performing a Basic Configuration Using Configuration Mode 4-20
Checking the Running Configuration Settings before Saving
Them 4-21
Saving the Running Configuration Settings and Reviewing Your
Configuration 4-21
Implementing Other Configuration Tasks 4-23
Configuring the Software Configuration Register 4-24
Boot Field Settings and the boot Command 4-26
Changing Configuration Register Settings 4-27
Configuration Register Bit Meanings 4-28
Recovering a Lost Password 4-31
Using Flash Memory Cards in the RP 4-34
Installing and Removing the Flash Memory Card in a RP 4-34

Table of Contents ix
Formatting a Flash Memory Card 4-37
Specifying the Cisco IOS Image Used to Boot the System 4-38
Software Commands Associated with Flash Memory 4-38
Enabling Booting from Flash Memory 4-40
Copying Files to Flash Memory 4-41
Copying a Cisco IOS Software Image into a Flash Memory
Card 4-42
Copying Cisco IOS Software Images between Flash Memory
Cards 4-44
CopyingSystemConfigurationFilesBetween RPMemoryand aFlash
Memory Card 4-46
Recovering from Locked Blocks in Flash Memory Cards 4-49
What To Do Next? 4-50
If You Need More Configuration Information 4-50
Chapter 5 Troubleshooting the Installation 5-1
Troubleshooting Overview 5-2
Problem Solving with Subsystems 5-2
Identifying Startup Problems 5-4
Troubleshooting the Power Subsystem 5-7
Troubleshooting the Processor Subsystem 5-9
Troubleshooting the RP 5-10
Troubleshooting the Line Cards 5-12
Troubleshooting Using the Alarm Card 5-14
Troubleshooting the Cooling Subsystem 5-15
Additional Reference Information for Troubleshooting 5-17
Chapter 6 Running Diagnostics on the Cisco 12012 6-1
Diagnostic Test Overview 6-1
Using the diag Command 6-3
Diagnostic Testing Sequence 6-4
Loading and Running Diagnostics 6-4

xCisco 12012 Gigabit Switch Router Installation and Configuration Guide
Diagnostic Examples 6-6
Without verbose Option 6-6
With verbose Option 6-7
Failed Diagnostic 6-9
Chapter 7 Maintaining the Cisco 12012 7-1
Cleaning and Replacing the Air Filter Assembly 7-2
Removing the Air Filter 7-3
Cleaning the Air Filter 7-7
Replacing the Air Filter Assembly 7-7
Removing the Old Air Filter Assembly 7-7
Installing A New Air Filter Assembly 7-9
Removing and Replacing an AC-Input Power Supply 7-12
Removing an AC-Input Power Supply 7-12
Installing a New or Replacement AC-Input Power Supply 7-15
Checking the Replacement of an AC-Input Power Supply 7-17
Removing and Replacing a DC-Input Power Supply 7-19
Removing a DC-Input Power Supply 7-19
Installing a New or Replacement DC-Input Power Supply 7-25
Checking the Replacement of a DC-Input Power Supply 7-30
Removing and Replacing a Blower Module 7-32
Removing and Replacing the Card Cage Assembly 7-33
Powering Down the Cisco 12012 7-34
Removing the Power Supplies 7-34
Removing the Cards from the Upper Card Cage 7-34
Removing a Line Card from the Upper Card Cage 7-35
Removing a RP from the Upper Card Cage 7-37
Removing an Alarm Card from the Upper Card Cage 7-37
Removing the Cards from the Lower Card Cage 7-38
Removing the System Grounding 7-38
Removing the Card Cage Assembly 7-39
Installing a New Card Cage Assembly 7-39
Replacing the Cards in the Lower Card Cage 7-40
Replacing the Cards in the Upper Card Cage 7-40
Reattaching the System Grounding 7-41

Table of Contents xi
Replacing the Power Supplies 7-41
Removing and Replacing a Route Processor 7-42
Removing and Replacing an Alarm Card 7-43
Removing and Replacing a Clock and Scheduler Card or Switch Fabric
Card 7-45
Upgrading RP and Line Card Memory 7-45
Appendix A Repackaging the Cisco 12012 A-1
Tools Required A-2
Safety Recommendations A-2
Removing the Cisco 12012 from a Rack A-3
Powering Down the Cisco 12012 A-3
Removing the Blower Modules A-3
Removing the Card Cage Assembly A-3
Removing the Frame from the Rack A-4
Replacing Components in the Cisco 12012 A-6
Replacing the Blower Modules A-6
Replacing the Card Cage Assembly A-6
Completing the Repackaging A-7
Repackaging the Redundant AC-Input Power Supplies A-7
Repackaging the Accessories Box A-8
Installing the Side Panels, End Panels, and Top of the Shipping
Container A-8

xii Cisco 12012 Gigabit Switch Router Installation and Configuration Guide

List of Figures xiii
FIGURES
Figure 1-1 Cisco 12012 (Front View, AC-Input Power Supplies Shown) 1-3
Figure 1-2 Gigabit Route Processor (Front Panel View, Horizontal Orientation Shown) 1-5
Figure 1-3 GRP (Horizontal Orientation Shown) 1-8
Figure 1-4 Performance Route Processor (Front Panel View, Horizontal Orientation
Shown) 1-14
Figure 1-5 PRP (Horizontal Orientation) 1-16
Figure 1-6 Alarm Card Faceplate LEDs, Switches, and Connectors 1-25
Figure 1-7 Lower Card Cage 1-26
Figure 1-8 AC-Input Power Supply 1-30
Figure 1-9 DC-Input Power Supply 1-32
Figure 1-10 Cisco 12012 Power Distribution 1-33
Figure 1-11 Blower Module (Shown without the Blower Module Front Cover) 1-34
Figure 1-12 Internal Air Flow (Side View) 1-35
Figure 1-13 Cable-Management System 1-38
Figure 2-1 Cisco 12012 Frame Outer Dimensions (Top View) 2-9
Figure 2-2 AC Power Cords 2-13
Figure 2-3 DC Power Cable Lug 2-14
Figure 3-1 Installing the Brace Bar 3-4
Figure 3-2 Removing the Blower Module Front Cover 3-5
Figure 3-3 Removing the Blower Module 3-6
Figure 3-4 Cisco 12012 Card Cage Assembly 3-7
Figure 3-5 Removing a Card from the Upper Card Cage (GRP Shown) 3-9
Figure 3-6 Opening the Air Filter Tray 3-11
Figure 3-7 Latching the Lower Card Cage Air Deflector 3-12

xiv Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
Figure 3-8 Removing Cards from the Lower Card Cage 3-13
Figure 3-9 Removing a DC-Input Power Supply 3-15
Figure 3-10 Removing the Card Cage Assembly from the Frame 3-19
Figure 3-11 Frame Mounting Hole Groups 3-20
Figure 3-12 Installing the Frame in the Rack 3-22
Figure 3-13 Attaching an Interface Cable to a Line Card 3-32
Figure 3-14 Console and Auxiliary Port Connections 3-33
Figure 3-15 RJ-45 and MII Ethernet Connections 3-37
Figure 3-16 Ethernet MII Receptacle 3-38
Figure 3-17 Ethernet RJ-45 Receptacle 3-39
Figure 3-18 PRP Console and Auxiliary Port Connections 3-41
Figure 3-19 Using the Ethernet Port on the PRP 3-44
Figure 3-20 RJ-45 Receptacle and Plug (Horizontal Orientation) 3-45
Figure 3-21 Straight-Through Cable Pinout (Connecting MDI Ethernet Port to MDI-X
Wiring) 3-46
Figure 3-22 Crossover Cable Pinout (for Connecting Two PRPs) 3-46
Figure 3-23 Alarm Card Connectors 3-48
Figure 3-24 System Grounding Receptacles 3-51
Figure 3-25 Attaching a Grounding Lug to the Grounding Receptacles 3-52
Figure 3-26 Connecting Source AC to the AC-Input Power Supply 3-55
Figure 3-27 DC Power Cable Lug 3-57
Figure 3-28 Removing the DC-Input Power Supply Front Cover and Cable Bracket 3-59
Figure 3-29 Connecting the Source DC Power Cable Leads to the DC-Input Power Supply 3-61
Figure 3-30 Reinstalling the DC-Input Power Supply 3-63
Figure 4-1 RP Alphanumeric LED Displays (Partial Front Panel View) 4-3

List of Figures xv
Figure 4-2 Installing and Removing a Flash Memory Card 4-36
Figure 7-1 Connecting an ESD-Preventive Strap to the Cisco 12012 7-4
Figure 7-2 Removing the Air Filter 7-6
Figure 7-3 Removing the Screws from the Old Air Filter Tray 7-8
Figure 7-4 New Air Filter Hinge Holes and Chassis Holes Alignment 7-10
Figure 7-5 Installing the New Air Filter in the New Air Filter Tray 7-11
Figure 7-6 Disconnecting an AC-Input Power Supply 7-13
Figure 7-7 Removing an AC-Input Power Supply 7-14
Figure 7-8 Removing a DC-Input Power Supply 7-21
Figure 7-9 Removing the DC-Input Power Supply Front Cover 7-22
Figure 7-10 Removing the Power Cable Bracket 7-23
Figure 7-11 Disconnecting the DC-Input Power Supply 7-24
Figure 7-12 DC Power Cable Lug 7-26
Figure 7-13 Installing a DC-Input Power Supply 7-29
Figure 7-14 Removing the Interface Cables from a Line Card 7-36
Figure 7-15 Removing an Alarm Card 7-44
Figure A-1 Removing the Frame from the Rack A-5
Figure A-2 Cisco 12012 Shipping Packaging A-9

xvi Cisco 12012 Gigabit Switch Router Installation and Configuration Guide

List of Tables xvii
TABLES
Table 1-1 GRP Memory Components 1-7
Table 1-2 DRAM Configurations 1-9
Table 1-3 PRP Memory Components 1-17
Table 1-4 Supported Flash Disk Sizes and Product Numbers 1-19
Table 1-5 Switch Fabric Configurations 1-27
Table 1-6 Cisco 12012 Physical Specifications 1-40
Table 1-7 Cisco 12012 Electrical Specifications 1-41
Table 1-8 Cisco 12012 Environmental Specifications 1-41
Table 1-9 Agency Approvals 1-42
Table 2-1 Site Environment Requirements 2-11
Table 2-2 Source AC Power Specifications 2-12
Table 2-3 AC Power Cord International Options 2-13
Table 2-4 Source DC Power Specifications 2-14
Table 2-5 SONET Maximum Fiber-Optic Transmission Distances 2-17
Table 2-6 Typical Fiber-Optic Link Attenuation and Dispersion Limits 2-18
Table 2-7 Estimating Link Loss 2-19
Table 2-8 Line Card SONET Signal Requirements 2-19
Table 2-9 Site Log Example 2-25
Table 3-1 GRP Console Port Signals 3-35
Table 3-2 Auxiliary Port Signals 3-35
Table 3-3 Ethernet MII Pinout 3-38
Table 3-4 Ethernet RJ-45 Pinout 3-39
Table 3-5 PRP Console Port Signals 3-42
Table 3-6 PRP Auxiliary Port Signals 3-42

xviii Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
Table 3-7 PRP RJ-45 Ethernet Receptacle Pinout 3-45
Table 3-8 Specifications and Connection Limits for 100-Mbps Transmission 3-47
Table 3-9 IEEE 802.3u Physical Characteristics 3-47
Table 3-10 Alarm 1 and Alarm 2 Connector Pinout 3-49
Table 4-1 RP Alphanumeric LED Display Sequences 4-4
Table 4-2 Line Card Alphanumeric LED Display Sequences 4-4
Table 4-3 Software Configuration Register Bit Meanings 4-25
Table 4-4 Explanation of Boot Field (Configuration Register Bits 00 to 03) 4-25
Table 4-5 Default Boot Filenames 4-29
Table 4-6 Configuration Register Settings for Broadcast Address Destination 4-30
Table 4-7 System Console Terminal Transmission Rate Settings 4-30
Table 5-1 RP Alphanumeric LED Display Messages 5-10
Table 5-2 Line Card Alphanumeric LED Display Messages 5-13

About This Guide xix
About This Guide
This section explains the objectives, intended audience, and organization of this installation
and configuration guide. Also included are the conventions used to convey instructions and
information.
Cisco documentation and additional literature are available in a CD-ROM package, which
ships with your product. The DocumentationCD-ROM, a member of the Cisco Connection
Family, is updated monthly. Therefore, it might be more up to date than printed
documentation. To order additional copies of the Documentation CD-ROM, contact your
local sales representative or call customer service. The CD-ROM package is available as a
single package or as an annual subscription. You can also access Cisco documentation on
the World Wide Web at http://www.cisco.com, http://www-china.cisco.com, or
http://www-europe.cisco.com.
Document Objectives
This installation and configuration guide explains the hardware installation and basic
configuration procedures for a Cisco 12012 Gigabit Switch Router (GSR). It contains
procedures for installing the hardware, creating a basic configuration file, and starting up
the router. After completing the installation and basic configuration procedures covered in
this guide, you will then use the appropriate companion publications to configure your
system more completely.
AudienceTo use this publication, you should be familiar with Cisco or equivalent router hardware and
cabling, electronic circuitry and wiring practices, and preferably have experience as an
electronic or electromechanical technician.

xx Cisco 12012 Gigabit Switch Router Installation and Configuration Guide
Document Organization
Document Organization
This installation and configuration guide is organized into the following chapters and
appendixes:
•Chapter 1, “Product Overview,” provides an introduction to the Cisco 12012 with a
description of the system’s components.
•Chapter 2, “Preparing for Installation,” is a preparatory chapter that describes safety
considerations, tools required, an overview of the installation, and procedures you
should perform before the actual installation.
•Chapter 3, “Installing a Cisco 12012,” provides instructions for installing the hardware
and connecting the external network interface cables.
•Chapter 4, “Observing System Startup and Performing a Basic Configuration,”
provides simple procedures for completing a basic system configuration and for
checking and saving this configuration to system memory.
•Chapter 5, “Troubleshooting the Installation,” provides guidelines for troubleshooting
the Cisco 12012 hardware installation.
•Chapter 6, “Running Diagnostics on the Cisco 12012,” describes how to load and run
the Cisco 12012 field diagnostics.
•Chapter 7, “Maintaining the Cisco 12012,” provides simple maintenance procedures
that you might need to perform after you have installed the Cisco 12012. Also included
are removal and replacement procedures for the field replaceable units.
•Appendix A, “Repackaging the Cisco 12012,” provides instructions on repacking the
Cisco 12012 if you need to transport it to another site.