Draytek VigorAP 910C, Руководство пользователя

Страница: 163 / 223

VigorAP 910C User’s Guide 153
3
3
.
.
1
1
0
0
.
.
7
7
W
W
M
M
M
M
C
C
o
o
n
n
f
f
i
i
g
g
u
u
r
r
a
a
t
t
i
i
o
o
n
n
WMM is an abbreviation of Wi-Fi Multimedia. It defines the priority levels for four access
categories derived from 802.1d (prioritization tabs). The categories are designed with
specific types of traffic, voice, video, best effort and low priority data. There are four
accessing categories - AC_BE , AC_BK, AC_VI and AC_VO for WMM.
Available settings are explained as follows:
Item Description
WMM Capable To apply WMM parameters for wireless data transmission,
please click the
Enable radio button.
Aifsn It controls how long the client waits for each data transmission.
Please specify the value ranging from 1 to 15. Such parameter
will influence the time delay for WMM accessing categories.
For the service of voice or video image, please set small value
for AC_VI and AC_VO categories For the service of e-mail or
web browsing, please set large value for AC_BE and AC_BK
categories.
CWMin/CWMax CWMin means contention Window-Min and CWMax means
contention Window-Max. Please specify the value ranging from
1 to 15. Be aware that CWMax value must be greater than
CWMin or equals to CWMin value. Both values will influence
the time delay for WMM accessing categories. The difference
between AC_VI and AC_VO categories must be smaller;
however, the difference between AC_BE and AC_BK categories
must be greater.
Txop It means transmission opportunity. For WMM categories of
AC_VI and AC_VO that need higher priorities in data
transmission, please set greater value for them to get highest
transmission opportunity. Specify the value ranging from 0 to
65535.
ACM
It is an abbreviation of Admission control Mandatory. It can