118
AC TXOP Limit AIFSN ECWmin ECWmax
AC-VO 47 2 2 3
ECWmin cannot be greater than ECWmax.
If all clients operate in 802.11b radio mode, you are recommended to set TXOPLimit to 188 and 102
for AC-VI and AC-VO.
If some clients operate in 802.11b radio mode and some clients operate in 802.11g radio mode in the
network, the TXOPLimit parameters in Table 73 are recom
mended.
Once you enable CAC for an AC, it is enabled automatically for all ACs with higher priority. For
example, if you enable CAC for AC-VI, CAC is also enabled for AC-VO. However, enabling CAC for
AC-VO does not enable CAC for AC-VI.
Displaying radio statistics
1. Select Interface Setup > Wireless > Wireless QoS from the navigation tree.
2. Click the Radio Statistics tab.
3. Click a radio to see its details.
Figure 119 Displaying radio statistics
Table 74 Field description
Field Description
Radio interface WLAN radio interface.
Client EDCA update count Number of client EDCA parameter updates.
QoS mode
WMM indicates that QoS mode is enabled; None
indicates that QoS mode is not enabled.
Radio chip QoS mode Radio chip’s support for the QoS mode.
Radio chip max AIFSN Maximum AIFSN allowed by the radio chip.
Radio chip max ECWmin Maximum ECWmin allowed by the radio chip.
Radio chip max TXOPLimit Maximum TXOPLimit allowed by the radio chip.
Radio chip max ECWmax Maximum ECWmax allowed by the radio chip.
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