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Configuration Guide - WLAN-AC

S5700 and S6720 V200R012C00

This document describes the configurations of WLAN, including WLAN Service Configuration, Radio Resource Management, Roaming, WLAN QoS, WLAN Security, WDS, Mesh, Location, Hotspot 2.0, Dual-Link Cold Backup, N+1 Backup.
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Configuring Static Load Balancing

Configuring Static Load Balancing

Context

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.

In static load balancing mode, APs providing the same services are manually added to a load balancing group. When a STA needs to access a WLAN, it sends an Association Request packet to an AC through an AP. The AC determines whether to permit access from the STA according to a load balancing algorithm. The implementation of static load balancing must meet the following conditions.
  • If dual-band APs are used, traffic is load balanced among APs working on the same frequency band.
  • Each load balancing group supports a maximum of 16 APs.
  • Under the agile distributed network architecture composed of the central AP and RUs, you only need to add radios of the RUs to a static load balancing group.

Procedure

  1. Run system-view

    The system view is displayed.

  2. Run wlan

    The WLAN view is displayed.

  3. Run sta-load-balance static-group name group-name

    A static load balancing group is created and the static load balancing group view is displayed.

    By default, no static load balancing group is available in the system.

  4. Run member { { ap-name ap-name | ap-id ap-id } [ radio radio-id ] }&<1-8>

    An AP radio is added to the static load balancing group.

    By default, no AP radio is added to a static load balancing group.

  5. (Optional) Configure the static load balancing mode and related parameters.

    Configure static load balancing based on the number of users and channel usage.

    Static load balancing based on the channel usage is configured.

    1. Run mode channel-utilization

      Static load balancing based on the channel utilization is configured.

      By default, static load balancing based on the number of users is used.

    2. Run channel-utilization start-threshold start-threshold

      The start threshold for static load balancing based on the channel utilization is set.

      By default, the start threshold for static load balancing based on the channel usage is 50%.

    3. Run channel-utilization gap-threshold gap-threshold

      The channel utilization difference threshold for load balancing in a static load balancing group is set.

      By default, the channel usage difference threshold for load balancing in a static load balancing group is 20%.

    4. Run deny-threshold deny-threshold

      The maximum number of times an AP rejects association requests of a STA is configured for the static load balancing group.

      By default, the maximum number of times an AP rejects association requests of a STA is 3 for a static load balancing group.

    Configure static load balancing based on the number of users.

    1. Run mode sta-number

      Static load balancing based on the number of users is configured.

      By default, static load balancing based on the number of users is used.

    2. Run sta-number start-threshold start-threshold-value

      The start threshold for static load balancing based on the number of users is set.

      By default, the start threshold for load balancing in a static load balancing group is 10.

    3. Run sta-number gap-threshold { percentage percentage-value | number number-value }

      The load difference threshold for static load balancing based on the number of users is set.

      By default, the load difference threshold of a static load balancing group based on the percentage of users is 20%.

Verifying the Configuration

  • Run the display sta-load-balance static-group { all | name group-name } command to check information about a static load balancing group.
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Updated: 2018-12-24

Document ID: EDOC1100038361

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