183 
Item Descri
tion
Multicast MCS 
Set the multicast MCS for 802.11n. 
The multicast MCS is adopted only when all the clients use 802.11n. If a non 
802.11n client exists, multicast traffic is transmitted at a mandatory MCS data 
rate. Select a multicast MCS index from the MCS indexes supported by all 
802.11n clients because different clients support different MCS indexes. 
 IMPORTANT: 
•  If you configure a multicast MCS index greater than the maximum MCS 
index supported by the radio, the maximum MCS index is adopted. 
•  When the multicast MCS takes effect, the corresponding data rates defined 
for 20MHz are adopted no matter whether the 802.11n radio operates in 
40 MHz mode or in 20 MHz mode. 
Supported Maximum MCS 
Set the maximum MCS index for 802.11n supported rates. 
The supported maximum MCS cannot be smaller than the mandatory 
maximum MCS. 
 
  NOTE: 
•  For more information about MCS, see 
H3C WA Series WLAN Access Points WLAN Configuration 
Guide
. 
•  When 802.11n radios are used for WDS, make sure that they have the MCS configuration. 
 
Configuring calibration 
Channel calibration information 
1.  Select Radio > Calibration from the navigation tree. 
2.  On the Operation tab, click the link corresponding to the target radio to view the channel 
switching information of the radio.