Wireless/Redundant Edge Services xl Module Management and Configuration Guide WS.02.xx and greater

3-47
Radio Port Configuration
Quality of Service (QoS) on RP Radios
Each outbound radio queue is defined by different WMM parameters, which
determine how the RP contends for the medium in order to transmit frames
in that queue. These parameters include:
■ the arbitration IFS number (AIFSN)—the time that the medium must be
contention free before the RP can attempt to transmit a frame (first
decrementing a random backoff time)
■ the minimum contention window (CW Min)—the maximum value for the
initial random backoff time
■ the maximum contention window (CW Max)—the maximum value for the
random backoff time for a frame that has collided
■ the transmit opportunity (Transmit Ops)—the continuous time during
which a device that has won control of the radio can retain control
You can view the parameters that RP radios apply to each queue by selecting
Network Setup > Radio and clicking the WMM tab.
Figure 3-22. Network Setup > Radio > WMM Screen