COMPANY CONFIDENTIAL
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2.5.2.3 Radio Layer
The radio layer commands are provided to configure the radio layer for ALL VAPs attached to the radio.
Common parameters for the radio include the frequency (channel), the channel width mode (HT 20/40), and
other parameters that apply to radio operations. Note that ALL VAPS attached to the specific radio are
affected by the configurations made to the radio layer.
6MBAck
#iwpriv wifi
N
6MBAck
1|0
This command will enable (1) or disable (0) the use of the 6 MB/s (OFDM) data rate for ACK frames. If
disabled, ACK frames will be sent at the CCK rate. The default value is 0. The command has a corresponding
get command to return the current value.
#iwpriv wifi0 6MBAck 1
#iwpriv wifi0 Get6MBAck
wifi0 Get6MBAck:1
AddSWBbo
SWBcnRespT
DMABcnRespT
#iwpriv wifi
N
SWBcnRespT
Response Time
#iwpriv wifi
N
DMABcnRespT
Response Time
#iwpriv wifi
N
AddSWBb0
Response Time
These settings are used to adjust the calculation of the ready time for the QoS queues. This is used to adjust the
performance of the QoS queues for optimal timing. The parameter Software Beacon Response Time represents
the time, in microseconds, required to process beacons in software. The DMA Beacon Response Time is the
time required to transfer the beacon message from Memory into the MAC queue. Finally, the Additional
Software Beacon Backoff is a “fudge factor” used for final adjustment of the ready time offset.
These parameters are used for experimental adjustment of queue performance. In the AP application they are
not relevant, so they should not be modified. Their default value is zero. Each parameter has a corresponding
get command.
#iwpriv wifi0 SWBcnRespT 1
#iwpriv wifi0 DMABcnRespT 2
#iwpriv wifi0 AddSWBbo 10
#iwpriv wifi0 GetSWBcnRespT
wifi0 GetSWBcnRespT:1
#iwpriv wifi0 GetDMABcnRespT
wifi0 GetDMABcnRespT:2
#iwpriv wifi0 GetAddSWBbo
wifi0 GetAddSWBbo:10
