Cerio OW-200N2, User Manual

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User’s Manual
500mW eXtreme Power 11Na Outdoor Bridge
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3.5.18 WMM Parameters of Access Point: This affects traffic flowing from the client
station to the access point.
Queue
Data
Transmitted
AP to Clients
Priorit
y
Description
AC_BK Background Low High throughput. Bulk data that requires
maximum throughput and is not time-sensitive is
sent to this queue (FTP data, for example).
AC_BE Best Effort Mediu
m
Medium throughput and delay. Most traditional IP
data is sent to this queue.
AC_VI Video High Minimum delay. Time-sensitive video data is
automatically sent to this queue.
AC_VO Voice High Time-sensitive data like VoIP and streaming
media are automatically sent to this queue.
3.5.19 Aifsn : The Arbitration Inter-Frame Spacing Number specifies a wait time (in
milliseconds) for data frames
3.5.20 CWmin : Minimum Contention Window. This parameter is input to the algorithm that
determines the initial random backoff wait time ("window") for retry of a transmission.
The value specified here in the Minimum Contention Window is the upper limit (in
milliseconds) of a range from which the initial random backoff wait time is determined.
3.5.21 CWmax : Maximum Contention Window. The value specified here in the Maximum
Contention Window is the upper limit (in milliseconds) for the doubling of the random
backoff value. This doubling continues until either the data frame is sent or the
Maximum Contention Window size is reached. Once the Maximum Contention
Window size is reached, retries will continue until a maximum number of retries
allowed is reached. Valid values for the "cwmax" are 1, 3, 7, 15, 31, 63, 127, 255, 511,
or 1024. The value for "cwmax" must be higher than the value for "cwmin".
3.5.22 Txop : Transmission Opportunity is an interval of time when a WME AP has the right
to initiate transmissions onto the wireless medium (WM). This value specifies (in
milliseconds) the Transmission Opportunity (Txop) for AP; that is, the interval of time
when the WMM AP has the right to initiate transmissions on the wireless network.
3.5.23 ACM : Admission Control Mandatory, ACM only takes effect on AC_VI and AC_VO.
When you do not click Checkbox, it means that the ACM is controlled by the
connecting AP. If you click Checkbox, it means that the Client is in charge.