Cisco Small Business AP541N Administration Manual page 101

4
NOTE
96
Table 24 QoS Parameters (Continued)
Field
cwMax
(Maximum
Contention Window)
TXOP Limit
Other QoS Settings
No
Acknowledgement
Automatic Power
Save Delivery
After you configure the QoS settings, you must click Apply to apply the changes
and to save the settings. Changing some settings might cause the access point to
stop and restart system processes. If this happens, wireless clients will temporarily
lose connectivity. We recommend that you change access point settings when
WLAN traffic is low.
Description
The value specified here in the Maximum Contention
Window is the upper limit (in milliseconds) for the doubling
of the random backoff value. This doubling continues until
either the data frame is sent or the Maximum Contention
Window size is reached.
Once the Maximum Contention Window size is reached,
retries will continue until a maximum number of retries
allowed is reached.
The TXOP Limit is a station EDCA parameter and only
applies to traffic flowing from the client station to the
access point. The Transmission Opportunity (TXOP) is an
interval of time, in milliseconds, when a client has the right
to initiate transmissions towards the access point. The
TXOP Limit maximum value is 65535.
Select On to specify that the access point should not
acknowledge frames with QosNoAck as the service class
value.
Select On to enable Automatic Power Save Delivery
(APSD), which is a power management method. APSD is
recommended if VoIP phones access the network through
the access point.
Cisco AP541N Dual-band Single-radio Access Point Quick Start Guide
Configuring Quality of Service (QoS)
Wireless