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Fat AP and Cloud AP V200R008C00 CLI-based Configuration Guide

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Huawei uses machine translation combined with human proofreading to translate this document to different languages in order to help you better understand the content of this document. Note: Even the most advanced machine translation cannot match the quality of professional translators. Huawei shall not bear any responsibility for translation accuracy and it is recommended that you refer to the English document (a link for which has been provided).
Example for Configuring Smart Roaming

Example for Configuring Smart Roaming

Configuration Process

You need to configure and maintain WLAN features and functions in different profiles. These WLAN profiles include regulatory domain profile, radio profile, VAP profile, AP system profile, AP wired port profile,and WIDS profile. When configuring WLAN services, you need to set related parameters in the WLAN profiles and bind the profiles to the AP group or APs. After that, the configuration is automatically delivered to and takes effect on the RUs. WLAN profiles can reference one another; therefore, you need to know the relationships among the profiles before configuring them. For details about the profile relationships and their basic configuration procedure, see WLAN Service Configuration Procedure.

Networking Requirements

Usually, a large number of RUs are deployed on the stadium stand. The RUs in Figure 18-11 connect to the central AP through Switch_A to provide wireless services for users.

To ensure optimal user experience, the IT Dept of the stadium requires that users associate with the nearest RUs when moving on the stadium stand.

For the WLAN access configuration, see Related Topics.

Figure 18-11  Networking diagram for configuring smart roaming

Data Planning

Table 18-5  Central AP data planning

Item

Data

RRM profile
  • Name: smart-roam

  • Smart roaming threshold type: SNR-based and rate percentage-based
  • SNR threshold for smart roaming: 30
  • Rate percentage threshold for smart roaming: 30
5G radio profile
  • Name: radio5g
  • Referenced profiles: RRM profile smart-roam
2G radio profile
  • Name: radio2g
  • Referenced profiles: RRM profile smart-roam

Configuration Roadmap

Configure smart roaming and proper smart roaming parameters to forcibly disconnect weak-signal users (especially sticky terminals) so that the users can reconnect or roam to RUs with strong signals.
NOTE:

Some terminals on live networks have low roaming aggressiveness. As a result, they stick to the initially connected RUs regardless of whether they move far from the RUs, and have weak signals or low rates. The terminals fail to roam to neighbor RUs with better signals. They are called sticky terminals.

Configuration Notes

Configure port isolation on the interfaces of the device directly connected to RUs. If port isolation is not configured, a large number of unnecessary broadcast packets may be generated in the VLAN, blocking the network and degrading user experience.

Procedure

  1. Check the basic configuration of the WLAN.

    Check Item

    Command

    Data

    Check the AP group to which an RU belongs.

    display ap all

    AP group: ap-group1

    Check all profiles referenced by the AP group.

    display ap-group name ap-group1

    VAP profile: wlan-net

    Check all profiles referenced by the VAP profile.

    display vap-profile name wlan-net

    SSID profile: wlan-net

  2. Configure smart roaming.

    # Create the RRM profile smart-roam, enable smart roaming in the RRM profile, configure SNR-based and rate-based roaming trigger modes and their roaming thresholds to 30 dB and 30%, respectively.

    [AP-wlan-view] rrm-profile name smart-roam
    [AP-wlan-rrm-prof-smart-roam] smart-roam enable 
    [AP-wlan-rrm-prof-smart-roam] smart-roam roam-threshold check-snr check-rate
    [AP-wlan-rrm-prof-smart-roam] smart-roam roam-threshold snr 30
    [AP-wlan-rrm-prof-smart-roam] smart-roam roam-threshold rate 30 
    [AP-wlan-rrm-prof-smart-roam] quit

    # Create the 2G radio profile radio2g and bind the RRM profile smart-roam to the 2G radio profile.

    [AP-wlan-view] radio-2g-profile name radio2g 
    [AP-wlan-radio-2g-prof-radio2g] rrm-profile smart-roam
    [AP-wlan-radio-2g-prof-radio2g] quit

    # Create the 5G radio profile radio5g and bind the RRM profile smart-roam to the 5G radio profile.

    [AP-wlan-view] radio-5g-profile name radio5g 
    [AP-wlan-radio-5g-prof-radio5g] rrm-profile smart-roam
    [AP-wlan-radio-5g-prof-radio5g] quit

    # Bind the 5G radio profile radio5g and 2G radio profile radio2g to the AP group ap-group1.

    [AP-wlan-view] ap-group name ap-group1 
    [AP-wlan-ap-group-ap-group1] radio-5g-profile radio5g
    [AP-wlan-ap-group-ap-group1] radio-2g-profile radio2g
    [AP-wlan-ap-group-ap-group1] quit

  3. Verify the configuration.

    • Run the display rrm-profile name smart-roam command on the central AP to check the smart roaming configuration.

      [AP-wlan-view] display rrm-profile name smart-roam
      ------------------------------------------------------------
      ...
      Smart-roam                                             : enable
      Smart-roam check SNR                                   : enable
      Smart-roam standing SNR threshold(dB)                  : 30
      Smart-roam SNR quick-kickoff-threshold(dB)             : 15
      Smart-roam check rate                                  : enable
      AMC policy                                             : auto-balance
      Smart-roam rate threshold(%)                           : 30
      Smart-roam rate quick-kickoff-threshold(%)             : 20
      Smart-roam high level SNR margin(dB)                   : 15
      Smart-roam low level SNR margin(dB)                    : 6
      Smart-roam SNR check interval(s)                       : 3
      Smart-roam unable roam client expire time(m)           : 120
      ...
      ------------------------------------------------------------
    • The users have good Internet experience when moving on the stand.

Configuration Files

  • Central AP configuration file

    #
     sysname AP
    #
    wlan
     rrm-profile name smart-roam
      smart-roam enable
      smart-roam roam-threshold check-snr check-rate
      smart-roam roam-threshold snr 30
      smart-roam roam-threshold rate 30
     radio-2g-profile name radio2g
      rrm-profile smart-roam
     radio-5g-profile name radio5g
      rrm-profile smart-roam
     ap-group name ap-group1
      radio 0
       radio-2g-profile radio2g 
       vap-profile wlan-vap wlan 1
      radio 1
       radio-5g-profile radio5g 
       vap-profile wlan-vap wlan 1
    #
    return
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Updated: 2019-01-11

Document ID: EDOC1000176006

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