10-WLAN Advanced Features Command Reference

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01-WLAN optimization commands
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WLAN optimization commands

IMPORTANT

IMPORTANT:

Use WLAN optimization commands under the guidance of H3C Support.

option capacity-adjust

Use option capacity-adjust enable to enable transmit power adjustment.

Use option capacity-adjust disable to disable transmit power adjustment.

Use undo capacity-adjust to restore the default.

Syntax

option capacity-adjust { disable | enable [ all ] { increase | decrease } value }

undo option capacity-adjust

Default

Transmit power adjustment is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

all: Configures transmit power adjustment for all rates. If you do not specify this keyword, the command configures transmit power adjustment for mandatory rates.

increase: Increases the transmit power.

decrease: Decreases the transmit power.

value: Specifies the transmit power adjustment value in the range of 1 to 27 dBm.

Usage guidelines

This feature enables an AP to use the adjusted transmit power to transmit packets.

Examples

# Enable transmit power adjustment and increase the transmit power by 1 dBm for all rates.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option capacity-adjust all increase 1

option client fast-forwarding

Use option client fast-forwarding enable to enable fast forwarding of AP-to-client data frames.

Use undo option client fast-forwarding to disable fast forwarding of AP-to-client data frames.

Syntax

option client fast-forwarding enable level level-value

undo option client fast-forwarding

Default

Fast forwarding of AP-to-client data frames is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

level level-value: Specifies the fast forwarding level in the range of 1 to 4.

Usage guidelines

This feature enables an AP to forward data frames to clients without extra processing (such as verification and counting) to improve processing efficiency.

Examples

# Enable fast forwarding of AP-to-client data frames.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option client fast-forwarding enable level 1

option client hide-node-protection

Use option client hide-node-protection enable to enable hidden node protection.

Use undo option client hide-node-protection to disable hidden node protection.

Syntax

option client hide-node-protection enable

undo option client hide-node-protection

Default

Hidden node protection is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Usage guidelines

This command takes effect only on 802.11g, 802.11n, and 802.11ac clients.

This feature enables clients to send RTS or CTS frames before transmitting frames to avoid interference from hidden nodes.

Examples

# Enable hidden node protection.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option client hide-node-protection enable

option client reconnect

Use option client reconnect enable to enable AP-triggered client reassociation.

Use undo option client reconnect to disable AP-triggered client reassociation.

Syntax

option client reconnect enable [ rssi rssi-value ] [ interval interval ]

undo option client reconnect

Default

AP-triggered client reassociation is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

rssi rssi-value: Specifies the RSSI threshold in the range of 5 to 100. The default and recommended RSSI thresholds are 10 and 20, respectively.

interval interval: Specifies the interval at which an AP detects the signal strength of the clients. The value range for the interval argument is 3 to 10 seconds and the default interval is 3 seconds.

Usage guidelines

This feature enables an AP to send deauthentication frames to a client when the AP detects that the signal strength of the client is lower than the specified RSSI threshold. Then, the client can reassociate with the AP or roam to another AP.

Examples

# Enable AP-triggered client reassociation, and set the RSSI threshold and detection interval to 30 and 5 seconds, respectively.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option client reconnect enable rssi 30 interval 5

option client reject

Use option client reject enable to enable an AP to reject weak-signal clients.

Use undo option client reject to disable an AP from rejecting weak-signal clients.

Syntax

option client reject enable [ rssi rssi-value ]

undo option client reject

Default

Weak-signal clients are not rejected.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

rssi rssi-value: Specifies the RSSI threshold in the range of 5 to 100. Both the default and recommended RSSI thresholds are 10.

Usage guidelines

This feature enables an AP to reject clients with an RSSI lower than the specified threshold to release channel resources and enhance WLAN performance.

After you enable this feature, wireless clients with an RSSI lower than the threshold might fail to access the WLAN.

After a client accesses the WLAN, an AP will not log off the client with an RSSI lower than the threshold but will reject the client after it disconnects from the network.

Examples

# Enable the AP to reject clients with an RSSI lower than 30 dBm.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option client reject enable rssi 30

option dot11n-restraint

Use option dot11n-restraint enable to enable 802.11n packet suppression.

Use option dot11n-restraint disable to disable 802.11n packet suppression.

Use undo dot11n-restraint to restore the default.

Syntax

option dot11n-restraint { disable | enable packet-number packet-number packet-length packet-length } [ inbound | outbound ] [ tid tid-number ]

undo option dot11n-restraint

The following compatibility matrix shows the support of hardware platforms for this command:

 

Hardware series

Model

Command compatibility

WA6600 series

WA6638

WA6638i

WA6636

WA6630X

WA6628

WA6628X

WA6628E-T

WA6622

WA6620

WA6620X

No

WA6300 series

WA6338

WA6338-HI

WA6338-LI

WA6330

WA6330-LI

WA6322

WA6322H

WA6322H-HI

WA6322H-LI

WA6320

WA6320-C

WA6320-D

WA6320-SI

WA6320H

WA6320H-LI

WA6320H-XEPON

Yes

WAP922 series

WAP922E

Yes

WAP923 series

WAP923

Yes

Default

802.11n packet suppression is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

packet-number packet-number: Specifies the maximum number of MPDUs that can be aggregated into an A-MPDU, in the range of 1 to 64. The recommended value is 8.

packet-length packet-length: Specifies the maximum A-MPDU length, in the range of 2000 to 380000 bytes. The recommended value is 6000.

inbound: Specifies 802.11n packet suppression in the inbound direction.

outbound: Specifies 802.11n packet suppression in the outbound direction.

tid tid-number: Specifies a traffic identifier, in the range of 0 to 7. The queue type varies by TID value.

·     0 and 3—AC-BE queue.

·     1 and 2—AC-BK queue.

·     4 and 5—AC-VI queue.

·     6 and 7—AC-VO queue.

If you do not specify this option, 802.11n packet suppression applies to all types of packets.

Usage guidelines

Perform this task to suppress 802.11n packets by defining the maximum number of aggregated MPDUs and the maximum A-MPDU length. The two thresholds take effect at the same time. If either threshold is reached, the AP stops aggregation and sends the A-MPDU.

Examples

# Enable 802.11n packet suppression. Set the maximum number of MPDUs that can be aggregated into an A-MPDU and the maximum A-MPDU length to 30 and 10000 bytes, respectively.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option dot11n-restraint enable packet-number 30 packer-length 10000

option keep-active

Use option keep-active enable to enable decreasing the sleep interval of wireless clients.

Use option keep-active disable to disable decreasing the sleep interval of wireless clients.

Use undo option keep-active to restore the default.

Syntax

option keep-active { disable | enable }

undo option keep-active

The following compatibility matrix shows the support of hardware platforms for this command:

 

Hardware series

Model

Command compatibility

WA6600 series

WA6638

WA6638i

WA6636

WA6630X

WA6628

WA6628X

WA6628E-T

WA6622

WA6620

WA6620X

No

WA6300 series

WA6338

WA6338-HI

WA6338-LI

WA6330

WA6330-LI

WA6322

WA6322H

WA6322H-HI

WA6322H-LI

WA6320

WA6320-C

WA6320-D

WA6320-SI

WA6320H

WA6320H-LI

WA6320H-XEPON

Yes

WAP922 series

WAP922E

Yes

WAP923 series

WAP923

Yes

Default

Decreasing the sleep interval of wireless clients is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Usage guidelines

A wireless client in sleep state listens for traffic indication map (TIM) information in beacon frames to determine whether the associated AP has buffered packets for it. This feature enables an AP to modify the TIM information in beacon frames to decrease the sleep interval of wireless clients to improve transmission efficiency.

Examples

# Enable decreasing the sleep interval of wireless clients.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option keep-active enable

option probe-response-try

Use option probe-response-try enable to set the maximum number of probe response attempts.

Use option probe-response-try disable to remove the configuration.

Use undo probe-response-try to restore the default.

Syntax

option probe-response-try { disable | enable number }

undo probe-response-try

The following compatibility matrix shows the support of hardware platforms for this command:

 

Hardware series

Model

Command compatibility

WA6600 series

WA6638

WA6638i

WA6636

WA6630X

WA6628

WA6628X

WA6628E-T

WA6622

WA6620

WA6620X

No

WA6300 series

WA6338

WA6338-HI

WA6338-LI

WA6330

WA6330-LI

WA6322

WA6322H

WA6322H-HI

WA6322H-LI

WA6320

WA6320-C

WA6320-D

WA6320-SI

WA6320H

WA6320H-LI

WA6320H-XEPON

Yes

WAP922 series

WAP922E

Yes

WAP923 series

WAP923

Yes

Default

The maximum number of probe response attempts is not limited.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

number: Specifies the maximum number of probe response attempts, in the range of 1 to 16.

Usage guidelines

Perform this task to reduce the number of probe responses sent by a radio to save resources and improve network performance.

Examples

# Set the maximum number of probe response attempts to 10.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option probe-response-try enable 10

option roam-navigation

Use option roam-navigation enable to enable roaming navigation.

Use option roam-navigation disable to disable roaming navigation.

Use undo option roam-navigation to restore the default.

Syntax

option roam-navigation { disable | enable rssi rssi-value { beacon-power power-value | probe-response-power power-value } }

undo option roam-navigation

The following compatibility matrix shows the support of hardware platforms for this command:

 

Hardware series

Model

Command compatibility

WA6600 series

WA6638

WA6638i

WA6636

WA6630X

WA6628

WA6628X

WA6628E-T

WA6622

WA6620

WA6620X

No

WA6300 series

WA6338

WA6338-HI

WA6338-LI

WA6330

WA6330-LI

WA6322

WA6322H

WA6322H-HI

WA6322H-LI

WA6320

WA6320-C

WA6320-D

WA6320-SI

WA6320H

WA6320H-LI

WA6320H-XEPON

Yes

WAP922 series

WAP922E

Yes

WAP923 series

WAP923

Yes

Default

Roaming navigation is disabled.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

rssi rssi-value: Specifies the RSSI threshold in the range of 1 to 50. The recommended RSSI threshold is 20.

beacon-power power-value: Specifies the transmit power for beacon frames, in the range of 1 to 30 dBm. The recommended transmit power is 10 dBm.

probe-response-power power-value: Specifies the transmit power for probe response frames, in the range of 1 to 30 dBm. The recommended transmit power is 10 dBm.

Usage guidelines

If you set the transmit power for beacons or probe responses, the system uses the default transmit power to transmit other packets.

Examples

# Enable roaming navigation. Set the RSSI threshold to 10 and the transmit power for beacon frames to 10 dBm.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] option roam-navigation enable rssi 10 probe-response-power 10

rrop software-retry

Use rrop software-retry enable to enable software retransmission and set the maximum number of software retransmissions.

Use rrop software-retry disable to disable software retransmission.

Use undo rrop software-retry to restore the default.

Syntax

rrop software-retry { unicast [ eap ] | broadcast-multicast } enable count count

rrop software-retry { unicast [ eap ] | broadcast-multicast } disable

undo rrop software-retry { unicast [ eap ] | broadcast-multicast }

Default

The maximum number of software retransmissions varies by device model.

Views

Radio interface view

Predefined user roles

network-admin

Parameters

unicast: Configures software retransmission for unicast packets.

eap: Configures software retransmission for EAP packets.

broadcast-multicast: Configures software retransmission for broadcast and multicast packets.

count count: Specifies the maximum number of software retransmissions, in the range of 0 to 16.

Examples

# Set the maximum number of software retransmissions for EAP packets to the default.

<Sysname> system-view

[Sysname]interface wlan-radio 1/0/1

[Sysname-WLAN-Radio1/0/1] undo rrop software-retry unicast eap

wlan client inspect

Use wlan client inspect enable to enable client inspection.

Use undo wlan client inspect to restore the default.

Syntax

wlan client inspect enable

undo wlan client inspect

Default

Client inspection is disabled.

Views

System view

Predefined user roles

network-admin

Usage guidelines

The client inspection feature enables you to view information about packets exchanged and time consumed in each stage of the client association process.

In the current software version, the client inspection feature supports only client association, client association failure, and IP address lease extension events.

Examples

# Enable client inspection.

<Sysname> system-view

[Sysname] wlan client inspect enable