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Fit AP V200R010C00 Command Reference

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display diagnostic-information

display diagnostic-information


The display diagnostic-information command displays diagnostic information on the device, or stores diagnostic information to a specified file.


display diagnostic-information [ ap | sta mac-address sta-mac ] [ saved-file [ file-name ] ]


Parameter Description Value

Displays diagnostic information on AP.



Displays diagnostic information on STA.



Stores diagnostic information into a file.



Specifies the name of the file where diagnostic information is stored.

The value is a string of 5 to 64 characters. The file name extension must be .txt. The default directory where files are stored is flash:/.

mac-address sta-mac

Specifies the MAC address of a STA.

The value is in H-H-H format. An H is a hexadecimal number of 4 digits.


All views

Default Level

3: Management level

Usage Guidelines

Usage Scenario

When a fault occurs in the system, you can use the display diagnostic-information command to collect diagnostic information for fault location.

The display diagnostic-information command output includes the output for multiple display commands. Running the display diagnostic-information command is like running these display commands in batches.

If the saved-file parameter is not specified, diagnostic information is only displayed on the screen. If the saved-file parameter is specified, diagnostic information is only stored into a specified file but not displayed on the screen.

If the saved-file parameter is specified but file-name is not, the system automatically stores diagnostic information into the diagnostic-information.txt file.

If you do not specify the parameters ap, and sta, the command displays diagnostic information about all devices. If you specify a parameter (ap, or sta), the command displays diagnostic information about the specified parameter.


  • If this command displays a long output, press Ctrl+C to abort this command.

  • This command displays diagnostic information, which helps locate faults but may affect system performance. For example, CPU usage may become high. Therefore, do not use this command when the system is running properly.

  • Running the display diagnostic-information command simultaneously on multiple terminals connected to the device is prohibited. This is because CPU usage of the device may obviously increase and the device performance may be degraded.

  • When you run this command, the device obtains or uses some personal data of users, such as the STA MAC address. Delete the personal data immediately after the command is executed to ensure user data security.

  • The command output does not support split-screen display.


# Display diagnostic information about the device.

<Huawei> display diagnostic-information
  ===============display version===============                                 
Huawei Versatile Routing Platform Software                                      
VRP (R) software, Version 5.160 (AP5030DN V200R010C00)                          
Copyright (C) 2011-2017 HUAWEI TECH CO., LTD                                    
Huawei AP5030DN Router uptime is 0 week, 2 days, 22 hours, 31 minutes           
MPU 0(Master) : uptime is 0 week, 2 days, 22 hours, 31 minutes                  
SDRAM Memory Size    : 256     M bytes                                          
Flash Memory Size    : 32      M bytes                                          
MPU version information :                                                       
1. PCB      Version  : H87D2TT1D200 VER.C                                       
2. MAB      Version  : 0                                                        
3. Board    Type     : AP5030DN                                                 
4. BootROM  Version  : 55                                                       
Updated: 2019-07-18

Document ID: EDOC1100064353

Views: 159291

Downloads: 134

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