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AR Router Troubleshooting Guide

This Product Documentation provides guidance for maintaining AR Enterprise Router, covering common information collection and fault diagnostic commands, typical fault troubleshooting guide, and troubleshooting.
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Common display Commands

Common display Commands

The device provides various display commands to display hardware, interface, and software information. The information helps you locate various faults.

The following table lists the commands used to collect fault information.

Item

Command

Description

Basic information

display diagnostic-information

This command collects basic system information. It displays outputs of multiple display commands, including display device and display current-configuration. This command is necessary for any network problems. Executing this command takes a long time. You can press Ctrl+C to pause diagnostic information display on screen.

Device information

display device

This command displays card status. If the status of a card is displayed as Abnormal, the card is faulty.

Interface information

display interface

This command displays interface information to help you analyze cause of interface interconnection failures and check statistics on lost packets.

Versions

display version

Version information is important for device fault location. This command displays versions of the system software, BootROM, SRU, interface cards, and fan modules, as well as sizes of storage devices.

Patch information

display patch-information

This command displays current patch information, including the patch package version and patch package name.

Electronic label information

display elabel

Electronic labels identify information about hardware components of a device. This command displays electronic labels of cards on a device.

Device status

display health

This command displays the temperature, power supply information, fan information, power, CPU usage, memory usage, and storage medium usage of a device.

Current configurations

display current-configuration

This command displays all configuration information on a device. You can specify a regular expression to obtain the required configuration information.

Saved configurations

display saved-configuration

If a device has started but is not working properly, run the display saved-configuration command to check the startup files specified by the startup saved-configuration command.

Run the display saved-configuration last command to check the configuration saved last time.

Run the display saved-configuration time command to check the last time when the configuration is saved.

Time

display clock

This command displays the current system date and time.

User logs

display logfile buffer

Executing this command in the diagnostic view can display user logs in the log buffer.

Diagnostic log

display diag-logfile buffer

Executing this command in the diagnostic view can display user logs in the log buffer.

Alarms

display trapbuffer

This command displays information recorded in the trap buffer.

Memory usage

display memory-usage

If the slot slot-id parameter is specified in the command, the memory usage on an LPU is displayed. If the parameter is not specified, the memory usage of the MPU is displayed.

CPU usage

display cpu-usage

If the slot slot-id parameter is specified in the command, the CPU usage on an LPU is displayed. If the parameter is not specified, the CPU usage of the MPU is displayed.

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Updated: 2019-05-10

Document ID: EDOC1000079719

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