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AR500, AR510, and AR530 V200R007 Commands Reference

This document describes all the configuration commands of the device, including the command function, syntax, parameters, views, default level, usage guidelines, examples, and related commands.
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WLAN Radio Resource Management Configuration Commands

WLAN Radio Resource Management Configuration Commands

access priority (for AC)

Function

The access priority command configures the STA radio access mode.

The undo access priority command restores the default STA access mode.

By default, the STA associates with a 5 GHz radio preferentially.

NOTE:

Only the AR503GW-LM7, AR503GW-LcM7, AR510 series support this command.

Format

access priority { 5g | normal }

undo access priority

Parameters

Parameter

Description

Value

5g

Configures a STA to access a 5 GHz radio.

-

normal

Configures a STA to use the normal access mode.

-

Views

AP view

Default Level

2: Configuration level

Usage Guidelines

Most STAs support both 5 GHz and 2.4 GHz frequency bands and usually associate with the 2.4 GHz radio by default when connecting to the Internet. To connect to the 5 GHz radio, users must manually select the 5 GHz radio. When the 2.4 GHz frequency band has many users or severe interference, the 5 GHz frequency band can provide better access service for wireless users. The 5G-prior access function enables STAs to preferentially associate with the 5 GHz radio.

When an AP and STA support both 5 GHz and 2.4 GHz frequency bands, the AP can request the STA to associate with the 5 GHz radio first.

Example

# Set the STA access mode to 5G prior.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] ap id 0
[Huawei-wlan-ap-0] access priority 5g
Related Topics

associate-threshold

Function

The associate-threshold command configures the maximum number of association requests in a static load balancing group.

The undo associate-threshold command restores the default maximum number of association requests in a static load balancing group.

By default, the maximum number of association requests in a static load balancing group is 6.

Format

associate-threshold associate-threshold

undo associate-threshold

Parameters

Parameter

Description

Value

associate-threshold

Specifies the maximum number of association requests.

The value is an integer that ranges from 1 to 30.

Views

Load balancing group view

Default Level

2: Configuration level

Usage Guidelines

After the maximum number of association requests in a static load balancing group is set, when a STA requests to associate with an AP in the load balancing group, the AP rejects the association request of the STA if the AP is heavily loaded. When the number of consecutive association requests of the STA exceeds the maximum value, the AP allows the STA to associate with it regardless of whether traffic is balanced in the load balancing group.

Example

# Set the maximum number of association requests in static load balancing group coco to 8.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] load-balance-group name coco
[Huawei-wlan-load-group-coco] associate-threshold 8    

calibrate bandwidth (for AC)

Function

The calibrate bandwidth command configures the calibration bandwidth.

The undo calibrate bandwidth command restores the default calibration bandwidth.

By default, the global calibration bandwidth is 20 MHz.

Format

calibrate 5g bandwidth { 20mhz | 40mhz | 80mhz }

undo calibrate 5g bandwidth

Parameters

Parameter

Description

Value

5g

Specifies the frequency band on which radio calibration is performed.

5g: Radios work at the 5 GHz frequency band.

-

20mhz | 40mhz | 80mhz

Specifies the calibration bandwidth.

-

Views

WLAN view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

The 5 GHz frequency band has richer spectrum resources. In addition to 20 MHz channels, APs working on the 5 GHz frequency band support 40 MHz and 80 MHz channels. Larger-bandwidth channels mean higher transmission rates. However, at least three channels are required in radio calibration to achieve the optimal calibration effect. When configuring the calibration bandwidth, ensure that enough calibration channels are available for use.

You can use the calibrate bandwidth command to configure the calibration bandwidth and the calibrate channel-set command to configure calibration channels as prompted.

Configuration Impact

When the calibration bandwidth is changed, the device recalculates the calibration channels.

Precautions

Only the AP2030DN, AP4030DN, AP4130DN, AP7030DE, AP8030DN, AP8130DN, AP5030DN and AP5130DN support 80-MHz calibration bandwidth.

When configuring 40-MHz or 80-MHz calibration bandwidth, check whether channels of the corresponding bandwidth exist under the country code.

Example

# Set the global calibration bandwidth to 40 MHz.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] calibrate 5g bandwidth 40mhz

calibrate channel-set (for AC)

Function

The calibrate channel-set command configures a calibration channel set.

The undo calibrate channel-set command restores the default calibration channel set.

By default, a global calibration channel set contains channels corresponding to global country codes.

NOTE:

The default calibration channels corresponding to the country code China do not include channels 36 to 64.

Format

calibrate { 2.4g | 5g } channel-set channel-value

undo calibrate { 2.4g | 5g } channel-set

Parameters

Parameter Description Value
2.4g | 5g
Specifies the frequency band on which radio calibration is performed.
  • 2.4g: Radios work on the 2.4 GHz frequency band.
  • 5g: Radios work on the 5 GHz frequency band.

-

channel-set channel-value

Specifies the calibration channel set.

The value is a character string. You can select calibration channels as prompted. If you select multiple channels, use commas (,) to separate channel names.

Views

WLAN view

Default Level

2: Configuration level

Usage Guidelines

You can run this command to specify a calibration channel set for an AP. The device selects channels from the channel set to calibrate. This reduces the burden on the AP.

NOTE:

To ensure a good calibration effect, you are advised to configure at least three calibration channels.

The 5 GHz frequency band has richer spectrum resources. In addition to 20 MHz channels, APs working on the 5 GHz frequency band support 40 MHz and 80 MHz channels. Larger-bandwidth channels mean higher transmission rates. However, at least three channels are required in radio calibration to achieve the optimal calibration effect. When configuring the calibration bandwidth, ensure that enough calibration channels are available for use.

To specify a 40 MHz calibration channel, you need to specify two consecutive 20 MHz channels. To specify an 80 MHz calibration channel, you need to specify four consecutive 20 MHz channels. The combinations of 20 MHz channels making up the 40 MHz and 80 MHz channels are fixed. For details, see IOT Gateway Configuration Guide–Radio Resource Management–Radio Calibration.

You can also use the calibrate bandwidth command to configure the calibration bandwidth and the calibrate channel-set command to configure calibration channels as prompted.

NOTE:

When configuring a radio calibration set, avoid using radar channels.

The channels you configure must be supported by the terminals; otherwise, the terminals cannot discover wireless signals. For example, when the country code is set to China, 5 GHz channels 36, 40, 44, 48, 52, 56, 60, and 64 can be configured. However, most terminals do not support these channels currently. If these channels are configured, the terminals cannot discover wireless signals. In this case, you can configure 5 GHz channels 149, 153, 157, 161, and 165, which are supported by the terminals.

Example

# Configure a global calibration channel set composed of 40 MHz channels 149, 153, 157, and 161 on the 5 GHz frequency band.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] calibrate 5g bandwidth 40mhz
[Huawei-wlan-view] calibrate 5g channel-set 149,153,157,161

calibrate enable (for AC)

Function

The calibrate enable command enables radio calibration.

The undo calibrate enable command disables radio calibration.

By default, radio calibration is enabled.

Format

calibrate enable

undo calibrate enable

Parameters

None

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

Use Scenario

Radio calibration allows the device to dynamically allocate channels and power to APs. Usually, the device implements radio calibration when new APs or AP regions are added to the network or the radio environment deteriorates in some areas.

Prerequisites

Precautions

When radio calibration automatically triggers power adjustment, an alarm (WRFM_1.3.6.1.4.1.2011.6.139.3.24.1.19 hwRadioPowerChangedNotify) indicating that the radio power changes may be generated.

Example

# Disable radio calibration.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] undo calibrate enable

calibrate enable { auto | manual | schedule time } (for AC)

Function

The calibrate enable { auto | manual | schedule time } command configures the radio calibration mode.

The undo calibrate enable command disables calibration.

The default radio calibration mode is manual.

Format

calibrate enable { auto [ interval interval-value [ start-time start-time ] ] | manual | schedule time time-value }

undo calibrate enable

Parameters

Parameter Description Value
auto

Sets the radio calibration mode to auto.

-

interval interval-value

Specifies the radio calibration interval in auto mode.

The value is an integer that ranges from 30 to 1440, in minutes. If interval is not specified, the radio calibration interval in auto mode is 60 minutes.

start-time start-time

Specifies the start time for radio calibration in automatic mode.

The value is in the format of hh:mm:ss.
  • hh: indicates the hour. The value is an integer that ranges from 0 to 23.
  • mm: indicates the minute. The value is an integer that ranges from 0 to 59.
  • ss: indicates the second. The value is an integer that ranges from 0 to 59.
manual

Sets the radio calibration mode to manual.

-

schedule

Sets the radio calibration mode to schedule.

-

time time-value

Specifies the time for triggering the scheduled radio calibration.

The value is in the format of hh:mm:ss.
  • hh: indicates the hour. The value is an integer that ranges from 0 to 23.
  • mm: indicates the minute. The value is an integer that ranges from 0 to 59.
  • ss: indicates the second. The value is an integer that ranges from 0 to 59.

Views

WLAN view

Default Level

2: Configuration level

Usage Guidelines

There are three radio calibration modes:
  • Auto mode: The device periodically implements radio calibration at certain intervals (the interval is specified by interval and the default interval is 60 minutes).
  • Manual mode: Radio calibration is not automatically implemented by the device but manually triggered through the calibrate manual startup (for AC) command.
  • Schedule mode: The device triggers radio calibration at the time specified by the parameter time.
The three modes cannot be configured simultaneously. You can choose any of the modes as required.

Example

# Set the radio calibration mode to auto.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] calibrate enable auto

# Set the radio calibration mode to schedule and set the time for scheduled radio calibration to 20:30:00.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] calibrate enable schedule time 20:30:00

calibrate-interval (for AC)

Function

calibrate-interval command sets the radio calibration interval in a radio profile.

undo calibrate-interval command restores the default radio environment detection interval in a radio profile.

By default, radio calibration interval is 5 minutes.

Format

calibrate-interval calibrate-interval

undo calibrate-interval

Parameters

Parameter

Description

Value

calibrate-interval

Specifies the radio calibration interval.

The value is an integer that ranges from 5 to 10080, in minutes.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

An AP checks the radio environment at the specified interval. If the AP detects deterioration of the radio signal quality, it notifies the AC. The AC adjusts the channels and power parameters of the AP and neighboring APs to reduce signal interference or noises.

Example

# Set the radio calibration interval to 600 minutes in the radio profile 80211b.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name 80211b
[Huawei-wlan-radio-prof-80211b] calibrate-interval 600       

calibrate scan-cycle (for AC)

Function

The calibrate scan-cycle command sets the channel probe interval for radio calibration in the radio profile view.

The undo calibrate scan-cycle command restores the default channel probe interval for radio calibration.

By default, the channel probe interval for radio calibration is 60s.

Format

calibrate scan-cycle scan-cycle-value

undo calibrate scan-cycle

Parameters

Parameter Description Value
scan-cycle-value

Specifies the channel probe interval for radio calibration in the radio profile view.

The value is an integer that ranges from 10 to 600, in seconds.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

You can run the calibrate scan-cycle command to configure the channel probe interval for radio calibration. The AP periodically probes channels at the specified intervals.

If the probe interval is set too small, device performance may be affected. The default value is recommended.

Example

# Set the channel probe interval to 30s in the radio profile view.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] calibrate scan-cycle 30

calibrate sensitivity (for AC)

Function

The calibrate sensitivity command configures the radio calibration sensitivity for a device.

The undo calibrate sensitivity command restores the default radio calibration sensitivity.

By default, the radio calibration sensitivity of the device is set to medium.

Format

calibrate sensitivity { low | medium | high }

undo calibrate sensitivity

Parameters

Parameter Description Value
low

Indicates low radio calibration sensitivity.

-

medium

Indicates medium radio calibration sensitivity.

-

high

Indicates high radio calibration sensitivity.

-

Views

WLAN view

Default Level

2: Configuration level

Usage Guidelines

The following table describes the radio calibration sensitivity of the device.

Sensitivity

2.4 GHz

5 GHz

high

0 dB

x dB

medium

4*x dB

6*x dB

low

5*x dB

5*x dB

NOTE:

x depends on the number of APs engaged in radio calibration and is calculated according to the formula:

x = (Number of APs/8 + 1)

The default value is recommended.

Example

# Set the radio calibration sensitivity to high.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] calibrate sensitivity high

calibrate manual startup (for AC)

Function

The calibrate manual startup command triggers radio calibration.

Format

calibrate manual startup

Parameters

None

Views

WLAN view

Default Level

2: Configuration level

Usage Guidelines

To manually trigger radio calibration, run the calibrate enable manual command to set the radio calibration mode to manual and then run the calibrate manual startup command. The device implements radio calibration only after the calibrate manual startup command is executed.

Example

# Manually trigger radio calibration.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] calibrate enable manual
[Huawei-wlan-view] calibrate manual startup

channel scan-frequency (for AC)

Function

The channel scan-frequency command sets the interval at which an AP scans channels.

The undo channel scan-frequency command restores the default channel scan interval.

By default, an AP scans channels every 10s (10000 ms).

Format

channel scan-frequency time

undo channel scan-frequency

Parameters

Parameter Description Value
time Specifies the channel scan interval for an AP.

The value is an integer that ranges from 300 to 60000, in milliseconds.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After a channel scan interval is specified using the channel scan-frequency command, an AP scans channels at the specified interval.

Precautions

The channel scan interval configured using the channel scan-frequency command applies to WIDS applications.

NOTE:

If the customer has high requirements on real-time locating services, configure a small channel scan interval to improve the scan frequency; however, higher scan frequency indicates much larger impact on the services.

Set the scan interval (channel scan-frequency) larger than the scan duration (channel scan-time); otherwise, services are affected.

Example

# Configure the AP to scan channels every 30000ms.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name huawei
[Huawei-wlan-radio-prof-huawei] channel scan-frequency 30000

channel scan-time (for AC)

Function

The channel scan-time command configures the period during which an AP scans channels.

The undo channel scan-time command restores the default channel scan period.

By default, the period during which an AP scans channels is 60 ms.

Format

channel scan-time time

undo channel scan-time

Parameters

Parameter Description Value
time Specifies the period during which an AP scans channels.

The value is an integer that ranges from 1 to 600, in milliseconds.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

After a channel scan period is specified using the channel scan-time command, an AP continuously scans radio signals in this period and reports the collected information to the AC or the positioning server for WIDS applications.

Precautions

  • A longer channel scan period indicates more collected data and a more accurate result. However, when the AP collects data on radio channels, WLAN services on the radio are interrupted. Therefore, if the channel scan period is set too large, WLAN services are affected. You are advised to use the default value.

  • The channel scan period configured using the channel scan-time command applies to WIDS applications.

  • Set the scan interval (channel scan-frequency) larger than the scan duration (channel scan-time); otherwise, services are affected.

Example

# Set the channel scan period to 50 ms for an AP.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name huawei
[Huawei-wlan-radio-prof-huawei] channel scan-time 50

display calibrate channel-set (for AC)

Function

The display calibrate channel-set command displays the calibration channels and bandwidth that take effect.

Format

display calibrate channel-set [ region { region-id | all } ]

Parameters

Parameter

Description

Value

region region-id

Displays the calibration channels and bandwidth that take effect in the specified AP region.

The value is an integer that ranges from 0 to 15.

region all

Displays the calibration channels and bandwidth that take effect in all AP regions.

-

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

After configuring the radio calibration function, you can run the display calibrate channel-set command to check the calibration channels and bandwidth that take effect.

If you do not specify the value of region, the command displays the calibration channels and bandwidth that take effect globally.

Example

# Display the calibration channels and bandwidth that take effect in AP region 10.
<Huawei> display calibrate channel-set region 10
Region ID: 10
Country-code: CN
--------------------------------------------------------------------------------
Radio Frequency  Bandwidth  Channel Set
--------------------------------------------------------------------------------
2.4G             20MHz      1,6,11                                              
5G               40MHz      149,153,157,161                                     
--------------------------------------------------------------------------------

# Display the calibration channels and bandwidth that take effect globally.

<Huawei> display calibrate channel-set
Country-code: CN                                                                
--------------------------------------------------------------------------------
Radio Frequency  Bandwidth  Channel Set                                         
--------------------------------------------------------------------------------
2.4G             20MHz      1,6,11                                              
5G               40MHz      149,153,157,161                                     
--------------------------------------------------------------------------------
Table 12-95  Description of the display calibrate channel-set command output

Item

Description

Country-code

Country code.

Radio Frequency

Radio type.

Bandwidth

Calibration bandwidth that take effect.

Channel Set

Calibration channel set that take effect.

display load-balance-group

Function

The display load-balance-group command displays the load balancing group configuration.

Format

display load-balance-group { all | id group-id | name group-name }

Parameters

Parameter

Description

Value

all

Displays the configurations of all load balancing groups.

-

id group-id

Displays the configuration of the specified load balancing group.

The load balancing group ID must exist.

name group-name

Displays the configuration of the load balancing group with the specified name.

The load balancing group name must exist.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

None

Example

# Display the configuration of load balancing group coco.

<Huawei> display load-balance-group name coco
  Group ID            :0
  Group name          :coco
  Load-balance status :balance
  Load-balance mode   :session
  Gap threshold(%)    :4
  Associate threshold :6
-----------------------------------------------------------------------       
   RADIO  Actual  Config  POWER-LEVEL POWER(dBm) SESSION TRAFFIC(kbps)          
          Channel Channel                                                       
  -----------------------------------------------------------------------       
   2/0    6       6       0           24         1       -                      
   1/0    1       1       0           32         2       -                      
  -----------------------------------------------------------------------       
   Total: 2  

# Display the configurations of all load balancing groups.

<Huawei> display load-balance-group all
  ----------------------------------------------------
   ID     Name
  ----------------------------------------------------
   0      coco
   1      dodo
   2      eoeo
  ----------------------------------------------------
   Total: 3
Table 12-96  Description of the display load-balance-group command output

Item

Description

Group ID

ID of a load balancing group.

To configure a load balancing group, run the load-balance-group command.

Group name

Name of a load balancing group.

To configure a load balancing group, run the load-balance-group command.

Load-balance status

Load balancing status in a load balancing group.

Load-balance mode

Load balancing mode of a load balancing group.

To configure the load balancing mode, run the traffic gap or session gap command.

Gap threshold(%)

Threshold of the load difference among radios in the load balancing group, in percentage (%).

To configure the threshold, run the traffic gap or session gap command.

Associate threshold

Maximum number of association requests.

To configure the maximum number of association requests, run the associate-threshold command.

RADIO

Radio identified by the AP ID and radio ID.

Actual Channel

Current channel of the radio. The current channel may be different from the configured channel before the configuration is committed.

Config Channel

Configured channel of the radio.

POWER-LEVEL

Current transmit power level of the radio. The current transmit power level may be different from the configured transmit power level before the configuration is committed.

POWER(dBm)

Current transmit power of the radio, which is determined by the power level. The value is measured in dBm.

SESSION

Number of online users associated with the radio.

TRAFFIC(kbps)

Current traffic rate of the radio, in kbps.

ID

ID of a load balancing group.

To configure a load balancing group, run the load-balance-group command.

Name

Name of a load balancing group.

To configure a load balancing group, run the load-balance-group command.

display neighbor (for AC)

Function

The display neighbor command displays information about neighbors of a radio, including authorized and unauthorized neighbors.

Format

display neighbor ap-id ap-id radio-id radio-id

Parameters

Parameter

Description

Value

ap-id ap-id

Specifies the ID of an AP. The AP ID and radio ID identify a radio. For details about the AP ID, see the ap command.

The value is an integer that ranges from 0 to 15.

radio-id radio-id

Specifies the radio ID. The AP ID and radio ID identify a radio. For details about the radio ID, see the radio command.

The value is an integer that ranges from 0 to 3.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

APs' neighbor information reflects the APs' locations and neighbor relationships, helping you plan the network.

Information about authorized neighbors includes forward channel attenuation and backward channel attenuation:
  • Forward channel attenuation: indicates the attenuation from the local AP to the neighboring AP.
  • Backward channel attenuation: indicates the attenuation from the neighboring AP to the local AP.

If a neighboring AP is an unauthorized one, the system displays only the power of signals received from the neighboring AP.

Example

# Display information about neighbors of radio 0/0.

<Huawei> display neighbor ap-id 0 radio-id 0
  Own AP:                                                                       
  ----------------------------------------------------                          
   AP   CHANNEL FRONT-FADING(db)  BACK-FADING(db)                               
  ----------------------------------------------------                          
   2    1       107.00            73.00                                         
  ----------------------------------------------------                          
   Total: 1                                                                    
                                                                                
  Uncontrol AP:                                                                 
  ----------------------------------------------------                          
   BSSID          CHANNEL  RSSI(dBm)  SSID                                      
  ----------------------------------------------------                          
   4c1f-cc45-b4f1 1        -90.00     Test                                   
  ----------------------------------------------------     
  Total: 1   
Table 12-97  Description of the display neighbor command output

Item

Description

Own AP

Authorized neighboring AP.

Uncontrol AP

Unauthorized neighboring AP.

AP

ID of a neighboring AP.

CHANNEL

Channel that the authorized neighboring AP uses.

FRONT-FADING(db)

Forward channel attenuation, in dB. The value is the attenuation from the local AP to the neighboring AP.

BACK-FADING(db)

Backward channel attenuation, in dB. The value is the attenuation from the neighboring AP to the local AP.

BSSID

Basic service set identifier (BSSID) of an unauthorized neighbor.

CHANNEL

Channel that the unauthorized neighboring AP uses.

RSSI(dBm)

Power of signals received from the neighboring AP, in dBm.

SSID

Service set identifier (SSID) of an unauthorized neighbor.

display statistics calibrate (for AC)

Function

The display statistics calibrate command displays radio calibration statistics.

Format

display statistics calibrate ap ap-id radio radio-id

Parameters

Parameter

Description

Value

ap ap-id

Displays radio calibration statistics on the specified AP. The AP ID and radio ID identify a radio.

The value is an integer that ranges from 0 to 15.

radio radio-id

Displays radio calibration statistics on the specified radio. The AP ID and radio ID identify a radio.

The value is an integer that ranges from 0 to 3.

Views

All views

Default Level

1: Monitoring level

Usage Guidelines

You can run the display statistics calibrate command to view radio calibration statistics, helping check whether the radio environment is stable.

Example

# Display radio calibration statistics on radio 0 of AP0.
<Huawei> display statistics calibrate ap-id 0 radio-id 0 
  -----------------------------------------------------------------------       
   Signal environment deterioration :1                                          
   Power calibration                :1                                          
   Channel calibration              :0                                          
  -----------------------------------------------------------------------      
Table 12-98  Description of the display statistics calibrate command output

Item

Description

Signal environment deterioration

Number of times the radio environment deteriorates.

Power calibration

Number of times the power of the radio is calibrated.

Channel calibration

Number of times the channel of the radio is calibrated.

interference detect enable

Function

The interference detect enable command enables interference detection.

The undo interference detect enable command disables interference detection.

By default, interference detection is disabled.

Format

interference detect enable

undo interference detect enable

Parameters

None

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

WLAN wireless channels are often affected by the radio environment, and the service quality is therefore degraded. If interference detection is configured, an monitoring AP can learn the radio environment in real time and report alarms to the AC in a timely manner.

Interference detection can detect AP co-channel interference, AP adjacent-channel interference, and STA interference.
  • AP co-channel interference: Two APs working in the same frequency band interfere with each other. For example, on a large-scale WLAN (a university campus network), different APs often use the same channel. When there are overlapping areas among these APs, co-channel interference exists, degrading network performance.

  • AP adjacent-channel interference: Two APs with different center frequencies have overlapping areas, resulting in adjacent-channel interference. When APs are placed too close to each other or have strong signals, producing more noise and degrading network performance.

  • STA interference: If there are many STAs that are managed by other APs around an AP, services of the STAs managed by the local AP may be affected.

Example

# Enable interference detection.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] interference detect enable

load-balance-group

Function

The load-balance-group command creates a load balancing group and displays the load balancing group view.

The undo load-balance-group command deletes a created load balancing group.

By default, no load balancing group is created.

Format

load-balance-group { name group-name | id group-id } *

undo load-balance-group { name group-name | id group-id }

Parameters

Parameter

Description

Value

id group-id

Specifies the ID of a load balancing group.

The value is an integer that ranges from 0 to 7.

name group-name

Specifies the name of a load balancing group.

The value is a string of 1 to 31 case-insensitive characters. It does not contain question marks (?) or spaces, and cannot begin or end with double quotation marks (" ").

Views

WLAN view

Default Level

2: Configuration level

Usage Guidelines

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 allow access from the STA according to the load balancing algorithm.

NOTE:

A group name must be specified during the creation of a load balancing group.

Example

# Create a load balancing group new.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] load-balance-group name new
[Huawei-wlan-load-group-new] 

member

Function

The member command adds a radio to a specified load balancing group.

The undo member command deletes a radio from a specified load balancing group.

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

Format

member ap-id ap-id radio-id radio-id

undo member ap-id ap-id radio-id radio-id

Parameters

Parameter

Description

Value

ap-id ap-id

Specifies the AP ID. The AP ID and radio ID identify a radio.

The value is an integer that ranges from 0 to 15.

radio-id radio-id

Specifies the radio ID. The AP ID and radio ID identify a radio.

The value is an integer that ranges from 0 to 3.

Views

Load balancing group view

Default Level

2: Configuration level

Usage Guidelines

Usage Scenario

You can add a radio to or delete a radio from a specified load balancing group. When a STA wants to connect to a radio in a load balancing group, the AC compares the load of the radio and other working radios in the load balancing group and determines whether to allow the STA to connect to the radio according to a load balancing algorithm.

Precautions

  • All APs in a load balancing group work in the same frequency band (2.4 GHz or 5 GHz band).
  • A radio can join only one load balancing group. If dual-band APs are used, traffic is load balanced among APs working in the same frequency band. That is, a dual-band AP can join two load balancing groups.
  • APs in a load balancing groups use different working channels.
  • Each load balancing group supports a maximum of three APs.

Example

# Add AP 2 radio0 to the load balancing group coco.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] load-balance-group name coco
[Huawei-wlan-load-group-coco] member ap-id 2 radio-id 0    
Related Topics

reset statistics calibrate (Radio view)

Function

The reset statistics calibrate command clears radio calibration statistics.

Format

reset statistics calibrate

Parameters

None

Views

Radio view

Default Level

2: Configuration level

Usage Guidelines

Run the reset statistics calibrate command to clear radio calibration statistics, including the number of times the radio environment deteriorates and number of times the radio channel and power are calibrated.

Example

# Clear radio calibration statistics.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] ap 0 radio 0
[Huawei-wlan-radio-0/0] reset statistics calibrate 

session gap

Function

The session gap command sets the static load balancing mode to session-based load balancing and sets the load difference threshold.

The undo session gap command restores the default static load balancing mode.

By default, session-based load balancing is used, and the load difference threshold in session-based load balancing is 4%.

Format

session gap gap-threshold

undo session gap

Parameters

Parameter

Description

Value

gap-threshold

Specifies the load difference threshold.

The value is an integer that ranges from 1 to 100. It indicates the threshold of the load difference among radios in a load balancing group, in percentage. The load difference refers to the difference between the number of STAs on radios.

Views

Load balancing group view

Default Level

2: Configuration level

Usage Guidelines

After the session gap command is executed, traffic is load balanced based on the difference between STA quantities on different radios. The session-based load balancing algorithm is as follows:

The AC calculates the load percentage of each radio in a load balancing group using the formula:

Load percentage of a radio = (Number of associated STAs on the radio/Maximum number of STAs allowed on the radio) x 100%

The AC compares load percentages of all radios in the load balancing group and obtains the smallest load percentage value. When a STA requests to associate with an AP radio, the AC calculates the difference between the radio's load percentage and the smallest load percentage value and compares the load difference with the threshold. If the load difference is smaller than the threshold, the AC allows the STA to associate with the radio. If not, the AC rejects the association request of the STA. If the STA continues sending association requests to this AP, the AC allows the STA to associate with the AP when the number of association requests sent by the STA exceeds the maximum value configured using the associate-threshold command on the AC.

Example

# Set the load balancing mode of load balancing group coco to session-based load balancing and set the load difference threshold to 8%.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] load-balance-group name coco
[Huawei-wlan-load-group-coco] session gap 8    

set ap adjacent-frequency interference threshold

Function

The set ap adjacent-frequency interference threshold command configures the alarm threshold for adjacent-channel interference.

The undo set ap adjacent-frequency interference threshold command restores the default alarm threshold for adjacent-channel interference.

By default, the alarm threshold for adjacent-channel interference is 50%.

Format

set ap adjacent-frequency interference threshold threshold-value

undo set ap adjacent-frequency interference threshold

Parameters

Parameter

Description

Value

threshold-value

Specifies the alarm threshold, which is the percentage of the adjacent-channel interference power against the maximum power.

The value is an integer that ranges from 1 to 100.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

Two APs with different center frequencies have overlapping areas, resulting in adjacent-channel interference. When APs are placed too close to each other or have strong signals, more noise is produced, degrading network performance.

After the interference detect enable command is executed to enable interference detection, an AP can detect adjacent-channel interference. When the AP detects that adjacent-channel interference exceeds the alarm threshold configured using the set ap adjacent-frequency interference threshold command, the AP sends an alarm to the AC an alarm is generated.

Example

# Set the alarm threshold for adjacent-channel interference to 52.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] set ap adjacent-frequency interference threshold 52

# Restore the default alarm threshold for adjacent-channel interference.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] undo set ap adjacent-frequency interference threshold

set ap common-frequency interference threshold

Function

The set ap common-frequency interference threshold command configures the alarm threshold for co-channel interference.

The undo set ap common-frequency interference threshold command restores the default alarm threshold for co-channel interference.

By default, the alarm threshold for co-channel interference is 50%.

Format

set ap common-frequency interference threshold threshold-value

undo set ap common-frequency interference threshold

Parameters

Parameter

Description

Value

threshold-value

Specifies the alarm threshold, which is the percentage of the co-channel interference power against the maximum power.

The value is an integer that ranges from 1 to 100.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

Two APs working in the same frequency band interfere with each other. For example, on a large-scale WLAN (a university campus network), different APs often use the same channel. When there are overlapping areas among these APs, co-channel interference exists, degrading network performance.

After the interference detect enable command is executed to enable interference detection, an AP can detect adjacent-channel interference. When the AP detects that co-channel interference exceeds the alarm threshold configured using the set ap common-frequency interference threshold command, the AP sends an alarm to the AC.

Example

# Set the alarm threshold for co-channel interference to 60%.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] set ap common-frequency interference threshold 60

# Restore the default alarm threshold for co-channel interference.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] undo set ap common-frequency interference threshold

set station interference threshold

Function

The set station interference threshold command configures the alarm threshold for STA interference.

The undo set station interference threshold command restores the default alarm threshold for STA interference.

By default, the alarm threshold for STA interference is 32.

Format

set station interference threshold threshold-value

undo set station interference threshold

Parameters

Parameter

Description

Value

threshold-value

Specifies the alarm threshold.

The value is an integer that ranges from 1 to 256.

Views

Radio profile view

Default Level

2: Configuration level

Usage Guidelines

If there are many STAs that are managed by other APs around an AP, services of the STAs managed by the local AP may be affected.

After the interference detect enable command is executed to enable interference detection, an AP can detect STAs that are managed by other APs. When the AP detects that the number of such STAs exceeds the alarm threshold configured using the set station interference threshold command, the AP sends an alarm to the AC.

Example

# Set the alarm threshold for STA interference to 50.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] set station interference threshold 50

# Restore the default alarm threshold for STA interference.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] radio-profile name hw
[Huawei-wlan-radio-prof-hw] undo set station interference threshold

traffic gap

Function

The traffic gap command sets the static load balancing mode to session-based load balancing and sets the load difference threshold.

By default, session-based load balancing is used.

Format

traffic gap gap-threshold

Parameters

Parameter

Description

Value

gap-threshold

Specifies the load difference threshold.

The value is an integer that ranges from 1 to 100. It indicates the threshold of the load difference among radios in a load balancing group, in percentage. The load difference refers to the difference between the traffic volume on radios.

Views

Load balancing group view

Default Level

2: Configuration level

Usage Guidelines

After the traffic gap command is executed, traffic is load balanced based on the difference between the traffic volume on different radios. The traffic-based load balancing algorithm is as follows:

The AC calculates the load percentage of each radio in a load balancing group using the formula:

Load percentage of a radio = (Traffic rate of the radio/Maximum rate of the radio) x 100%

The AC compares load percentages of all radios in the load balancing group and obtains the smallest load percentage value. When a STA requests to associate with an AP radio, the AC calculates the difference between the radio's load percentage and the smallest load percentage value and compares the load difference with the threshold. If the load difference is smaller than the threshold, the AC allows the STA to associate with the radio. If not, the AC rejects the association request of the STA. If the STA continues sending association requests to this AP, the AC allows the STA to associate with the AP when the number of association requests sent by the STA exceeds the maximum value configured using the associate-threshold command on the AC.

Example

# Set the load balancing mode of load balancing group huawei to session-based load balancing and set the load difference threshold to 40%.

<Huawei> system-view
[Huawei] wlan ac
[Huawei-wlan-view] load-balance-group name huawei
[Huawei-wlan-load-group-huawei] traffic gap 40
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Updated: 2019-05-29

Document ID: EDOC1000097293

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