Step 1

Choose Configuration > Wireless Advanced > Band Select.

Step 2

In the Cycle Count field, enter a value between one and 10. The cycle count sets the number of suppression cycles for a new client. The default cycle count is two.

Step 3

In the Cycle Threshold (milliseconds) field, enter a value between one and 1000 milliseconds for the scan cycle period threshold. This setting determines the time threshold during which new probe requests from a client come from a new scanning cycle. The default cycle threshold is 200 milliseconds.

Step 4

In the Age Out Suppression (seconds) field, enter a value between 10 and 200 seconds. Age-out suppression sets the expiration time for pruning previously known 802.11b/g/n clients. The default value is 20 seconds. After this time elapses, clients become new and are subject to probe response suppression.

Step 5

In the Age Out Dual Band (seconds) field, enter a value between 10 and 300 seconds. The age-out period sets the expiration time for pruning previously known dual-band clients. The default value is 50 seconds. After this time elapses, clients become new and are subject to probe response suppression.

Step 6

In the Client RSSI (dbm) field, enter a value between -90 to -20. This is the average of the client packets received.

Step 7

In the Client Mid RSSI (dbm) field, enter a value between -90 to -20. This is the instantaneous RSSI value of the probe packets.

Step 8

On the AP Join Profile page, click the AP Join Profile name.

Step 9

Click Apply.

Step 1

Enter the global configuration mode.

Device# configure terminal

Step 2

Set the probe cycle count for band select.

Device(config)# wireless client band-select cycle-count 3

Step 3

Set the time threshold for a new scanning cycle period.

Device(config)# wireless client band-select cycle-threshold 5000

Step 4

Set the suppression expire to the band select.

Device(config)# wireless client band-select expire suppression 100

Step 5

Set the dual band expire.

Device(config)# wireless client band-select expire dual-band 100

Step 6

Set the client RSSI threshold.

Device(config)# wireless client band-select client-rssi 40

Step 7

Configure band selection on specific WLANs.

Device(config)# wlan wlan1 25 ssid12

Device(config-wlan)# band-select

Step 1

Choose Configuration > Radio Configurations > Network.

Step 2

Click on either 5 GHz Band or 2.4 GHz Band. Uncheck the Network Status check box to disable the network. This allows configuration of the network parameters.

Step 3

In the Beacon Interval field, enter the rate at which the SSID is broadcast by the APs, from 100 to 600 milliseconds. The default is 100 milliseconds. For 802.11b/g/n (2.4-GHz) radios, to enable short preamble on the radio, check the Short Preamble check box. A short preamble improves throughput performance.

Step 4

In the Fragmentation Threshold (in bytes) field, enter a value between 256 to 2346 bytes. Packets larger than the size you specify here will be fragmented.

Step 5

Check the DTPC Support check box to advertise the transmit power level of the radio in the beacons and the probe responses. Client devices using dynamic transmit power control (DTPC) receive channel and power level information from APs. They then adjust their settings automatically. For example, a client device used primarily in Japan could rely on DTPC to adjust its channel and power settings automatically. When it travels to Italy and joins a network there, the settings are updated as needed. If the DTPC Support check box is checked, you cannot configure a power constraint value on your 802.11a/n/ac (5-GHz) radio network. Click Apply.

Step 6

In the CCX Location Measurement section, check the Mode check box to globally enable CCX radio management for the network. Once enabled, APs connected to this device issue broadcast radio measurement requests to clients running CCX v2 or later releases.

Step 7

In the Interval field, enter a value to specify how often the APs must issue broadcast radio measurement requests. Click Apply.

Step 8

In the Data Rates section, choose a value to specify the rates at which data can be transmitted between the AP and the client:

• Mandatory: Clients must support this data rate to associate with an AP on the controllerembedded wireless controller.
• Supported: Any associated client supporting this data rate may communicate with the AP using that rate.
• Disabled: Clients specify the data rates used for communication.

Step 9

Click Apply and save the configuration.

Step 1

Disable the 802.11a and 802.11b bands.

Device(config)# ap dot11 5ghz shutdown

Device(config)# ap dot11 24ghz shutdown

Step 2

Specify the rate at which the SSID is broadcast by the corresponding AP and the size at which packets are fragmented.

Device(config)# ap dot11 {5ghz | 24ghz | } beaconperiod 500

Device(config)# ap dot11 {5ghz | 24ghz | } fragmentation 300

Step 3

Enable APs to advertise their channels and transmit the power levels in beacons and probe responses.

Device(config)# ap dot11 {5ghz | 24ghz | } dtpc

Device(config)# no ap dot11 {5ghz | 24ghz | } dtpc

Step 4

Specify the maximum allowed number of clients that can be configured.

Device(config)# wireless client association limit number 50 interval milliseconds 1000

Step 5

Specify the rate at which data can be transmitted between the controllerembedded wireless controller and the client.

Device(config)# ap dot11 {5ghz | 24ghz} rate 36 {disable | mandatory | supported}

Step 6

Enable the 802.11a and 802.11b bands.

Device(config)# no ap dot11 5ghz shutdown

Device(config)# no ap dot11 24ghz shutdown

Step 7

Enable or disable 802.11g network support. Then return to privileged EXEC mode.

Device(config)# ap dot11 24ghz dot11g

Device(config)# end

Step 1

Choose Configuration > Wireless > Advanced.

Step 2

In the Band Select tab, enter a value between one and 10 in the Cycle Count field. The cycle count determines how many suppression cycles are applied to each new client. The default cycle count is two.

Step 3

In the Cycle Threshold field, enter a value between one and 1000 milliseconds to define the scan cycle period threshold. his setting specifies the time period in which probe requests from a client are recognized as part of a new scanning cycle. The default cycle threshold value is 200 milliseconds.

Step 4

In the Age Out Suppression field, enter a value between 10 and 200 seconds. Age-out suppression establishes the expiration time for removing records of previously known 802.11b/g/n clients. The default value is 20 seconds. After the expiration time, clients are treated as new and become subject to probe response suppression.

Step 5

In the Age Out Dual Band field, enter a value between 10 and 300 seconds. The age-out period establishes the expiration time for removing records of previously known dual-band clients. The default value is 50 seconds. After the expiration period, clients are considered new and are subject to probe response suppression.

Step 6

In the Client RSSI field, enter a value between -90 dBm and -20 dBm. This value sets the minimum RSSI required for a client to respond to a probe.

Step 7

In the Client Mid RSSI field, enter a value between –20 dBm and –90 dBm. This parameter defines the mid-RSSI value, which can be used to toggle 2.4 GHz probe suppression depending on the RSSI.

Step 8

Click Apply.

Step 1

Enter the global configuration mode.

Device# configure terminal

Step 2

Configure the RF profile name and enter the RF profile configuration mode.

Device(config)# ap dot11 24ghz rf-profile test1

Step 3

Set the band-select client threshold.

Device(config-rf-profile)# band-select client {mid-rssi | rssi} -90

Step 4

Set the band-select cycle parameters.

Device(config-rf-profile)# band-select cycle {count | threshold} 10

Step 5

Configure the RF profile's band-select expiry time.

Device(config-rf-profile)# band-select expire {dual-band | suppression} 100

Step 6

Enable the RF profile's band-select probe response.

Device(config-rf-profile)# band-select probe-response

Step 1

Choose Configuration > Tags & Profiles > RF.

Step 2

Click Add to view the Add RF Profile window.

Step 3

In the 802.11 tab, complete these steps:

1. Choose the required operational rates.

2. Select the required 802.11n MCS Rates by checking the corresponding check boxes.

Step 4

Click Save & Apply to Device.

Step 1

Enable 802.11n support on the network.

Device(config)# ap dot11 {5ghz | 24ghz} dot11n

Step 2

Specify the modulation and coding scheme (MCS) rates for data transmission between the access point and the client.

Device(config)# ap dot11 {5ghz | 24ghz} dot11n mcs tx 20

Step 3

Enable WMM on the WLAN and uses the 802.11n data rates that you configured.

Device(config)# wlan wlan1 25 ssid12

Device(config-wlan)# wmm require

Step 4

Disable the network.

Device(config)# ap dot11 {5ghz | 24ghz} shutdown

Step 5

Specify the aggregation method used for 802.11n packets.

Device(config)# {ap | no ap} dot11 {5ghz | 24ghz} dot11n a-mpdu tx priority {all | 0-7}

Step 6

Re-enable the network.

Device(config)# no ap dot11 {5ghz | 24ghz} shutdown

Step 7

Configure the guard interval for the network.

Device(config)# ap dot11 {5ghz | 24ghz} dot11n guard-interval {any | long}

Step 8

Configure the Reduced Interframe Space (RIFS) for the network.

Device(config)# ap dot11 {5ghz | 24ghz} dot11n rifs rx

Step 9

Return to privileged EXEC mode. Alternatively, press Ctrl-Z to exit global configuration mode.

Device(config)# end

Step 1

Disable the 802.11 network.

Device(config)# ap dot11 5ghz shutdown

Step 2

Enable or disable the AP to announce when it is switching to a new channel.

Device(config)# {ap | no ap} dot11 5ghz channelswitch mode 0

Step 3

Configure the 802.11h power constraint value in dB.

Device(config)# ap dot11 5ghz power-constraint 200

Step 4

Re-enable the 802.11a network.

Device(config)# no ap dot11 5ghz shutdown