H3C Technologies H3C WX6000 Series Access Controllers - Manual (Page 567)

48-7
Item Description
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
No ACK
If you select the checkbox before No ACK, the No ACK policy is adopted.
By default, the normal ACK policy is adopted.
Table 48-4 shows the default EDCA parameters.
Table 48-4 Default radio EDCA parameters
AC AIFSN ECWmin ECWmax TXOP Limit
AC-BK 7 4 10 0
AC-BE 3 4 6 0
AC-VI 1 3 4 94
AC-VO 1 2 3 47
ECWmin cannot be greater than ECWmax.
On an AP operating in 802.11b radio mode, you are recommended to set the TXOP-Limit to 0, 0,
188, and 102 for AC-BK, AC-BE, AC-VI, and AC-VO.
Setting Client EDCA Parameters
Select QoS > Wireless QoS from the navigation tree on the left of the interface, select the Wireless
QoS tab, find the desired AP in the AP list, and click the corresponding icon in the Operation column
to enter the page for setting wireless QoS. In the Client EDCA list, find the priority type (AC_BK is taken
for example here) to be modified, and click the corresponding icon in the Operation column to enter
the page for setting client EDCA parameters.
Figure 48-7 Set client EDCA parameters
Table 48-5 shows the configuration items for setting client EDCA parameters.