How to display the roaming trace on an AC

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After STA roaming, run the display station roam-track command to on the AC to display the roaming trace of the STA.

Other related questions:
How to configure roaming on an AC
By default, the AC supports intra-AC roaming, which can be implemented as long as the basic WLAN services are configured and the source and destination APs have the same SSID and security policy. To implement inter-AC roaming, you need to configure the master controller, mobility group, and home agent. Note the following points when configuring WLAN roaming: 1. Two APs must use the same SSID and security profile. 2. In the direct forwarding mode, services of a roaming user may be interrupted for a short period because ARP entries of the access device connected to an AP do not age in time. To prevent this problem, run the learn client ip-address enable command in the VAP profile view on the AC to enable STA IP address learning. This function enablesAPs to promptly send gratuitous ARP packets to the access device for ARP entry updates, so that user services will not be interrupted during roaming. By default, STA IP address learning is enabled. 3. A maximum of 16 ACs can be added to a mobility group. An AC can be added only to one mobility group. 4. ACs in the same mobility group must use the same software version, otherwise inter-AC roaming may fail. 5. In dual-link hot standby (HSB) scenarios, roaming between active and standby ACs is not supported. Service interruption may occur if users roam in this scenario.

Why Are Fields IP, code, request, response and message of Some Traces Displayed on the View Trace Page Null?

The fields IP, code, request, response and message are optional.

  • IP: If SystemAction is selected for Trace Type, the operation is triggered by the system. It is normal that the content of the IP field is left blank.
  • request, response, and code: The three fields indicate the request body and code sent and received by the API of a trace when sending an HTTP request. The content of the fields depends on the cloud service triggering the trace, and it is normal to be left blank.
  • message: This field is used for each cloud service to record the remarks. Its content depends on the cloud service triggering the trace, and it is normal to be left blank.

Which Type of Information Is Displayed on the Trace List?

The trace list displays details about operations, such as creation, configuration, and deletion of cloud service resources, in your account. The trace list does not record information about query operations.


How do WLAN devices collect diagnostic information
For WLAN devices, you can run the display diagnostic-information command to collect and display current diagnostic information or store the information in a specified file.

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