Operation Manual

VigorAP 920R Series User’s Guide
118
transmission latency.
The default setting is Disable.
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.
AckPolicy
“Uncheck” (default value) the box means the AP will answer the
response request while transmitting WMM packets through
wireless connection. It can assure that the peer must receive the
WMM packets.
“Check” the box means the AP will not answer any response
request for the transmitting packets. It will have better
performance with lower reliability.
ACM
It is an abbreviation of Admission control Mandatory. It can
restrict stations from using specific category class if it is
checked.
Note: VigorAP 920RP provides standard WMM configuration
in the web page. If you want to modify the parameters, please
refer to the Wi-Fi WMM standard specification.
After finishing this web page configuration, please click OK to save the settings.