H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 568)

48-8
Table 48-5 Configuration items for setting client EDCA
Item Description
AP Name Displays the selected AP
Radio Displays the selected AP’s radio
Priority type Displays the priority type
AIFSN Arbitration inter-frame spacing number
TXOP Limit Transmission opportunity limit
ECWmin Exponent form of CWmin, namely, minimum ECWmin allowed by the radio chip
ECWmax Exponent form of CWmax, namely, maximum ECWmin allowed by the radio chip
CAC
Enables CAC. AC-VO and AC-VI support CAC, which is disabled by default. AC-BE
and AC-BK do not support CAC.
Enable: Enables CAC.
Disable: Disables CAC.
Table 48-6 shows the default client EDCA parameters.
Table 48-6 Default EDCA parameters for clients
AC AIFSN ECWmin ECWmax TXOP Limit
AC-BK 7 4 10 0
AC-BE 3 4 10 0
AC-VI 2 3 4 94
AC-VO 2 2 3 47
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 48-6 are recommended.
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.
Display the Radio Statistics
Select QoS > Wireless QoS from the navigation tree, and select the Radio Statistics tab to enter the
page displaying radio statistics. Click an AP name to see its details.