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Fit AP V200R010C00 Command Reference

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display trace instance

display trace instance


The display trace instance command displays diagnosis instances on a device.


display trace instance [ instance-start-id [ instance-end-id ] | mac-address mac-address | ip-address ip-address | cid cid ]


Parameter Description Value

Specifies the ID of the first instance whose information is displayed, that is, start ID.

The value varies according to different devices.

Specifies the ID of the last instance whose information is displayed, that is, end ID.

The value varies according to different devices.

The instance-end-id value must be larger than the instance-start-id value.

mac-address mac-address

Specifies a MAC address.

The value is in the format of H-H-H, in which H is a hexadecimal number of 4 digits.

ip-address ip-address

Specifies an IP address.

The value is in dotted decimal notation.

cid cid

Specifies the diagnosis instance CID.

The value varies according to different devices.


All views

Default Level

1: Monitoring level

Usage Guidelines

If you specify no parameter, all diagnosis instances are displayed in sequence. Each time you run this command, 10 diagnosis instances are displayed. For example, all diagnosis instances have been created on the device. When you run the display trace instance command for the first time, information about diagnosis instances 0 to 9 is displayed. When you run this command again, information about instances 10 to 19 is displayed. This process is repeated until information about all the diagnosis instances is displayed. If you specify the value of instance-start-id, information about 10 diagnosis instances from this ID is displayed.

To view information about diagnosis instances within a specified range, run the display trace instance instance-start-id instance-end-id command to specify the start and end IDs of diagnosis instances.


# Display information about diagnosis instances on the interface with the IP address of

<Huawei> display trace instance ip-address
Trace Instance:
  ID             : 0                                                            
  MAC Address    : 0101-0101-0101                                               
  IP Flag        : -                                                            
  Session ID     : -                                                            
  IP Address     :                                                   
  VRF Index      : -                                                            
  CID            : 100                                                          
  User Name      : -                                                            
  Interface      : -                                                            
  QinQ VLAN ID   : -                                                            
  User VLAN ID   : -                                                            
  Access Mode    : dot1x                                                        
  Modules online : EAPoL  :0    WEBS   :0       WEB    :0       AAA    :0       
                   CM     :0    TM     :0       SAM    :0       RADIUS :1       
                   DHCPS  :0    DHCPC  :0       DHCPR  :0       DHCPP  :0       
                   TACACS :0    AM     :0       SAVI   :0       WLAN_AC:0    
  Total 1, 1 printed
Table 15-13  Description of the display trace instance command output




ID of the diagnosis instance.

MAC Address

MAC address of the interface.

IP Flag

Flag of the IP address.

Session ID

ID of the session, only valid for PPPoX users.

IP Address

IP address of the interface.

VRF Index

User VRF index.


User connect ID.

User Name

User name.


Interface index.





Access Mode

User access mode, including dot1x, mac-authen, portal, and wlan. To set the user access mode, run the trace object command.

Modules online

User status on a module. User status can be:
  • 0: The user is offline on the module.
  • 1: The user is online on the module.
Related Topics
Updated: 2019-07-18

Document ID: EDOC1100064353

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