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CLI-based Configuration Guide - WLAN-AC

AR100, AR120, AR150, AR160, AR200, AR1200, AR2200, AR3200, and AR3600 V200R010

This document provides the concepts, configuration procedures, and configuration examples of WLAN-AC features.
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Configuring Dynamic Load Balancing

Configuring Dynamic Load Balancing

Background

The load balancing function applies to scenarios where there is a high degree of overlap between APs' coverage ranges. If APs engaged in load balancing are far from each other, a STA may connect to a distant AP, which affects wireless experience of users.

When the load difference between APs reaches the load difference threshold, some STAs may access the network slowly because the APs will reject access requests of STAs according to the load balancing algorithm. If a STA continues sending association requests to an AP, the AP allows the STA to associate when the number of consecutive association attempts of the STA exceeds the maximum number of rejection times.

Static load balancing limits the maximum number of AP radios to 16 and allows only radios on the same frequency band to join a load balancing group. Additionally, a static load balancing group needs to be manually specified. Dynamic load balancing overcomes the limitations of static load balancing.

In dynamic load balancing mode, a STA broadcasts Probe Request frames to scan available APs. The APs that receive the Probe Request frames all report the STA information to the AC. The AC adds these APs to a load balancing group and then uses a load balancing algorithm to determine whether to permit access from the STA.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run wlan ac

    The WLAN view is displayed.

  3. Run rrm-profile name profile-name

    An RRM profile is created and the RRM profile view is displayed.

  4. Run sta-load-balance dynamic enable

    Dynamic load balancing is enabled.

    By default, the dynamic load balancing function is disabled.

  5. (Optional) Run sta-load-balance dynamic start-threshold start-threshold

    The start threshold for dynamic load balancing is configured.

    By default, the start threshold for dynamic load balancing is 10.

  6. (Optional) Run sta-load-balance dynamic gap-threshold gap-threshold

    The load difference threshold for dynamic load balancing is configured.

    By default, the load difference threshold for dynamic load balancing is 20%.

  7. (Optional) Run sta-load-balance dynamic deny-threshold deny-threshold

    The maximum number of times an AP rejects association requests of a STA is configured for dynamic load balancing

    By default, the maximum number of rejections is 3.

  8. Run quit

    Return to the WLAN view.

  9. Bind the RRM profile to a radio profile.
    1. Run the radio-2g-profile name profile-name or radio-5g-profile name profile-name command to enter the 2G or 5G radio profile view.
    2. Run the rrm-profile profile-name command to bind the RRM profile to the 2G or 5G radio profile.
    3. Run the quit command to return to the WLAN view.
  10. Bind the radio profile to an AP group or a specific AP. For the detailed procedure, see Binding a Radio Profile.
  11. Run quit

    Return to the WLAN view.

  12. Run commit { all | ap-name ap-name | ap-id { ap-id1 [ to ap-id2 ] } &<1-10> }

    Configurations are delivered to APs.

Verifying the Configuration

  • Run the display rrm-profile name profile-name command to check settings of dynamic load balancing parameters.
  • Run the display radio-2g-profile name profile-name command to check the RRM profile referenced by a 2G radio profile.
  • Run the display radio-5g-profile name profile-name command to check the RRM profile referenced by a 5G radio profile.
  • Run the display station load-balance sta-mac mac-address command to check information about the dynamic load balancing group of the specified STA.
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Updated: 2019-08-07

Document ID: EDOC1100033726

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