Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 131)

Brocade Mobility RFS Controller System Reference Guide 119
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Antenna Mode Set the number of transmit and receive antennas on the Access Point. 1x1 is used for transmissions
over just the single “A” antenna, 1x3 is used for transmissions over the “A” antenna and all three
antennas for receiving. 2x2 is used for transmissions and receipts over two antennas for dual antenna
models. The default setting is dynamic based on the Access Point model deployed and its transmit
power settings.
Enable Antenna
Diversity Select this option to enable antenna diversity on supported antennas. Antenna diversity uses two or
more antennas to increase signal quality and strength. This option is disabled by default.
Wireless Client Power Select this option to specify the transmit power on supported wireless clients. If this is enabled set a
client power level between 0 to 20 dBm. This option is disabled by default.
Dynamic Chain
Selection Select this option for the radio to dynamically change the number of transmit chains. This option is
enabled by default.
Rate Use the Select button to set rate options depending on the 802.11 protocols selected. If the radio band
is set to Sensor or Detector, the Data Rates drop-down menu is not enabled, as the rates are fixed and
not user configurable. If 2.4 GHz is selected as the radio band, select separate 802.11b, 802.11g and
802.11n rates and define how they are used in combination. If 5 GHz is selected as the radio band,
select separate 802.11a and 802.11n rates then define how they are used together. When using
802.11n (in either the 2.4 or 5 GHz band), Set a MCS (modulation and coding scheme) in respect to the
radio’s channel width and guard interval. A MCS defines (based on RF channel conditions) an optimal
combination of 8 data rates, bonded channels, multiple spatial streams, different guard intervals and
modulation types. Clients can associate as long as they support basic MCS (as well as non-11n basic
rates).
If dedicating an BR1240 model radio to either 2.4 or 5 Ghz support, a Custom Rates option is available
to set a modulation and coding scheme (MCS) in respect to the radio’s channel width and guard
interval. A MCS defines (based on RF channel conditions) an optimal combination of rates, bonded
channels, multiple spatial streams, different guard intervals and modulation types. Clients can
associate as long as they support basic MCS (as well as non-11n basic rates). If Basic is selected within
the 802.11n Rates field, the MCS0-7 option is auto selected as a Supported rate and that option is
greyed out. If Basic is not selected, any combination of MCS0-7, MCS8-15 and MCS16-23 can be
supported, including a case where MCS0-7 and MCS16-23 are selected and not MCS8-15. The MCS0-7
and MCS8-15 options are available to each support access point. However, the MCS16-23 option is
only available to BR1240 model access points and its ability to provide 3x3x3 MIMO support.
Radio Placement Use the drop-down menu to specify whether the radio is located Indoors or Outdoors. The placement
should depend on the country of operation selected and its regulatory domain requirements for radio
emissions. The default setting is Indoors.
Max Clients Use the spinner control to set a maximum permissible number of clients to connect with this radio. The
available range is from 0 - 256 clients. The default is 256.
Rate Selection
Methods Specify a radio selection method for the radio. The selection methods are:
Standard - Standard monotonic radio selection method will be used.
Opportunistic - Sets opportunistic radio link adaptation as the radio selection method. This mode uses
opportunistic data rate selection to provide the best throughput.