A P P E N D I X A
Troubleshooting
Your Cisco 2600 series router goes through extensive testing and burn-in before leaving the factory. If you encounter problems, use the information in this appendix to help isolate problems or to eliminate the router as the source of the problem.
•Isolating Problems, page A-1
•System Messages, page A-4
•Recovering a Lost Password, page A-4
•Cisco Technical Assistance Center, page A-4
Note To troubleshoot a network module, refer to the Cisco Network Modules Installation Guide; to troubleshoot a WAN interface card, refer to the Cisco Interface Cards Installation Guide.
If you cannot locate the source of the problem, contact a customer service representative for information on how to proceed. For information about obtaining technical support, see the “Obtaining Technical Assistance” section on page xviii. Before you call, have the following information ready:
•Chassis type and serial number
•Maintenance agreement or warranty information
•Type of software and version number
•Date you received the new chassis
•Brief description of the problem
•Brief explanation of the steps you have taken to isolate the problem
Isolating Problems
The key to problem solving is to isolate the problem to a specific subsystem by comparing what the router is doing to what it should be doing.
The LEDs on the front and rear panel of the router enable you to determine router performance and operation. For a description of these LEDs, see the “Reading the Front-Panel LEDs” section on page 1-3and the “Reading the Rear-Panel LEDs” section on page 1-5.
When problem solving, consider the following subsystems:
•Power and cooling systems—External power source, power cable, router power supply and circuit breaker, and router blower and fan. Also consider inadequate ventilation or air circulation.
Cisco 2600 Series Routers Hardware Installation Guide
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Cisco 2600 Series Routers Hardware Installation Guide
Cisco 2600 Series Routers Hardware Installation Guide
Iii
N T E N T S
Serial DTE or DCE Devices
Initial Configuration Using the Setup Command Facility
Procedure for the tftpdnld Command Configuration Register
Vii
Objectives
Organization
Audience
Conventions
Chapter Title Description
Bewaar Deze Instructies
Safety Warnings
Avvertenza Importanti Istruzioni Sulla Sicurezza
Warnung Wichtige Sicherheitshinweise
Guarde Estas Instruções
Aviso Instruções Importantes DE Segurança
Xii
GEM Disse Anvisninger
Xiii
Xiv
Related Documentation
Cisco Product Document Title
Duration of Hardware Warranty
Cisco 90-Day Limited Hardware Warranty Terms
Replacement, Repair, or Refund Policy for Hardware
Xvi
Documentation Feedback
Obtaining Documentation
Cisco.com
Ordering Documentation
Obtaining Technical Assistance
Submitting a Service Request
Cisco Technical Support Website
Xviii
Xix
Definitions of Service Request Severity
Obtaining Additional Publications and Information
Preface Obtaining Additional Publications and Information
Overview of Cisco 2600 Series Routers
Hardware Features
Cisco
Advanced
Reading the Front-Panel LEDs
Power
Activity
RPS
PWR
SYS/RPS
ACT
Reading the Rear-Panel LEDs
Cisco 2613-Rear-Panel LEDs
FDX
Link
ACT
CF1
Modules, Interface Cards, and Memory
WAN and LAN Interface Numbering
Interface Numbering
11 Interface Numbering in Chassis with 1-RU Height
Voice Interface Numbering
System Specifications
Description Specification
Regulatory Compliance
Safety with Electricity
Safety Recommendations
Preventing Electrostatic Discharge Damage
Power Source Input Power Tolerance Limits
Power Supply Considerations
General Site Requirements
Site Environment
Equipment Racks
Installation Checklist
Site Configuration
Task Verified by Date
Creating a Site Log
Inspecting the Router
Tools and Equipment for Installation and Maintenance
Console Port Connections
Console and Auxiliary Port Considerations
Auxiliary Port Connections
Preparing to Connect to a Network
Token Ring Connections
Ethernet Connections
Serial DTE or DCE Devices
Configuring Serial Connections
Serial Connections
Device Type Gender Typical Devices
Signaling Standards Supported
Distance Limitations
Asynchronous/Synchronous Serial Module Baud Rates
Isdn BRI Connections
EIA/TIA-232
Distance EIA-530 Distance Rate bps Feet Meters
Low-Capacitance Cable
56-K/Switched-56-kbps DSU/CSU Connections
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Installing the Router
For network modules
Installing Modules, Interface Cards, and Power Supplies
For WICs and VICs
For AIMs
Setting the Chassis on a Desktop
Setting Up the Chassis
For internal power supplies
For external power supplies
Mounting the Chassis in a Rack
Right
To the other side of the chassis. Brackets for 19-inch rack
Brackets for 19-inch rack
To the other side of the chassis
Use two screws on each side For 19-inch rack Right bracket
Attaching the Brackets to a Router of 2-RU Height
V0 EN
Installing the Router in a Rack
Attaching Wall-Mount Brackets to the Router
Mounting the Chassis on the Wall
Attaching Rubber Feet to the Router
16 Attaching the Wall-Mount Brackets
Mounting the Router on the Wall
17 Mounting the Chassis on the Wall
Installing the Chassis Ground Connection
Ring terminal
Connecting Routers to AC Power
Power Connections
DC Wiring Requirements
Connecting Routers to a DC-Input Power Supply
Router DC Input DC Input Wire Size1
15A, 120VAC 10A, 240VAC. Statement
Wiring Procedure for DC Input
Connecting Routers to the Cisco Redundant Power System
Connecting WAN, LAN, and Voice Cables
Ports and Cabling
Port or Connection Port Type, Color Connected To Cable
LAN, WAN, and Voice Connection Procedures
Connecting to the Console Port
Connecting to a Console Terminal or Modem
23 Connecting to a Console Terminal
Connecting to the Auxiliary Port
Identifying a Rollover Cable
24 Connecting a Modem to the Auxiliary Port
Checklist for Power Up
Powering Up the Router
Front Panel Indicators
Routers with 1-RU Chassis Height
Routers with 2-RU Chassis Height
Power-Up Procedure
Configuring the Router
Initial Configuration Using the Setup Command Facility
Initial Configuration Using SDM
Enter a hostname for the router this example uses
Configuration is displayed
Initial Configuration Using the CLI Manual Configuration
To proceed with manual configuration using the CLI, enter no
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Isolating Problems
Troubleshooting
Environmental Reporting Features
Troubleshooting the Power and Cooling Systems
Troubleshooting Modules, Cables, and Connections
Cisco Technical Assistance Center
Recovering a Lost Password
System Messages
Entering ROM Monitor Mode
Using the ROM Monitor
Enter ROM Monitor Mode by Using the reload Command
ROM Monitor Commands
Command abc
ROM Monitor Command Syntax Conventions
Boot Commands in the ROM Monitor
ROM Monitor Command Descriptions
Router Management Commands
Informational Commands in the ROM Monitor
Other Useful ROM Monitor Commands
Debugging Commands
Modifying the Configuration Register in Menu Mode
Configuration Register Commands
Modifying the Configuration Register by Hexidecimal Entry
Recovering Cisco IOS Software Images
Description and Options of the xmodem Command
Copying an Image from the Console Using the xmodem Command
Procedure for the xmodem Command
Console Requirements
Restrictions on the tftpdnld Command
Specify the required variables, for example
Procedure for the tftpdnld Command
DEFAULTGATEWAY=172.16.19.1
Nvram
Configuration Register Settings
Bit Number Hexadecimal Meaning
Changing Configuration Register Settings
Boot Field Meaning
Configuring the Boot Field
Bit Address net host
Baud Bit
Enabling Booting from Flash Memory
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IN-1
Numerics
IN-2
Dram
LAN
Isdn BRI
Link LED
IN-3
IN-4
Sdram
IN-5
IN-6