[Enterprise Networking Documentation] AR G3 Router Troubleshooting

This document describes the troubleshooting methods and procedures of common faults on the router.

• Instructions for Maintenance Engineers: This chapter describes the precautions before fault location, backup of key data during fault occurrence, troubleshooting process, and ask for help.
• Forgetting Passwords: This chapter describes how to recover the console port, Telnet, and BootROM passwords.
• Information Collection: This chapter describes information collection methods.
  System Maintenance Methods: This chapter describes how to restore default settings, restart a device, upgrade the system, and transfer files.
• Startup Failures: This chapter describes how to troubleshoot device startup failures.
• Hardware Failures: This chapter describes how to troubleshoot hardware failures, including power supply, fan, card, interface, and memory failures.
• License Failures: This chapter describes the troubleshooting procedure for a failure to activate licenses. 
• Common Fault Diagnostic Commands: This chapter describes common fault diagnostic commands including display, reset, ping, and tracert commands. Additionally, alarms, logs, and packet header obtaining help you locate faults.
• List of Indicators: This chapter describes the fan module, power, and SRU indicators.
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  For more information, obtain the documentation in the following paths.