Specifications

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Cisco Wireless LAN Controller Configuration Guide
OL-21524-02
Chapter 4 Configuring Controller Settings
Configuring 802.11n Parameters
• 15 (144 Mbps)
Any associated clients that support the selected rates may communicate with the access point using those
rates. However, the clients are not required to be able to use this rate in order to associate. The MCS
settings determine the number of spatial streams, the modulation, the coding rate, and the data rate values
that are used.
Step 4 Click Apply to commit your changes.
Step 5 Use the 802.11n data rates that you configured by enabling WMM on the WLAN as follows:
a. Choose WLANs to open the WLANs page.
b. Click the ID number of the WLAN for which you want to configure WMM mode.
c. When the WLANs > Edit page appears, choose the QoS tab to open the WLANs > Edit (Qos) page.
d. From the WMM Policy drop-down list, choose Required or Allowed to require or allow client
devices to use WMM. Devices that do not support WMM cannot join the WLAN.
e. Click Apply to commit your changes.
Step 6 Click Save Configuration to save your changes.
Note To determine if an access point supports 802.11n, look at the 11n Supported text box on either
the 802.11a/n (or 802.11b/g/n) Cisco APs > Configure page or the 802.11a/n (or 802.11b/g/n)
AP Interfaces > Details page.
Using the CLI to Configure 802.11n Parameters
To configure 802.11n parameters using the controller CLI, follow these steps:
Step 1 Enable 802.11n support on the network by entering this command:
config {802.11a | 802.11b} 11nsupport {enable | disable}
Step 2 Specify the modulation and coding scheme (MCS) rates at which data can be transmitted between the
access point and the client by entering this command:
config {802.11a | 802.11b} 11nsupport mcs tx {0-15} {enable | disable}
See the descriptions of the 0 through 15 MCS data rates in the “Using the GUI to Configure 802.11n
Parameters” section on page 4-30.
Step 3 Use the 802.11n data rates that you configured by enabling WMM on the WLAN as follows:
config wlan wmm required wlan_id
The required parameter requires client devices to use WMM. Devices that do not support WMM cannot
join the WLAN.
Step 4 Specify the aggregation method used for 802.11n packets as follows:
a. Disable the network by entering this command:
config {802.11a | 802.11b} disable network
b. Specify the aggregation method entering this command:
config {802.11a | 802.11b} 11nsupport a-mpdu tx priority {0-7 | all} {enable | disable}