Site Survey - TRENDnet TEW-738APBO User Manual

TRENDnet User's Guide
Data
Queue Transmitted
Clients to AP
AC_BK Background.
AC_BE Best Effort
AC_VI Video
AC_VO Voice
When the no acknowledgment (No ACK) policy is used, the recipient does not
acknowledge received packets during wireless packet exchange. This policy is
suitable in the environment where communication quality is fine and interference
is weak. While the No ACK policy helps improve transmission efficiency, it can
cause increased packet loss when communication quality deteriorates. This is
because when this policy is used, a sender does not retransmit packets that have
not been received by the recipient. When the Normal ACK policy is used, the
recipient acknowledges each received unicast packet.
WMM Parameters of Station: This affects traffic flowing from the client station to
•
the access point.
Aifsn : The Arbitration Inter-Frame Spacing Number specifies a wait time (in
o
milliseconds) for data frames
CWmin : Minimum Contention Window. This parameter is input to the
o
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.
CWmax : Maximum Contention Window. The value specified here in the
o
© Copyright 2014TRENDnet. All Rights Reserved.
Priority Description
High throughput. Bulk data that
requires maximum
Low throughput and is not time-
sensitive is sent to this queue
(FTP data, for example).
Medium throughput and delay.
Medium Most traditional IP data is
sent to this queue
Minimum delay. Time-sensitive
High video data is automatically
sent to this queue
Time-sensitive data like VoIP
and streaming media are
High
automatically sent to this
queue
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".
Txop: Transmission Opportunity is an interval of time when a WME AP has the
o
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.
ACM: Admission Control Mandatory, ACM only takes effect on AC_VI and AC_VO.
o
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.
Click Save button to save your changes. Click Reboot button to activate your changes.
The items in this page are for AP's RF advanced settings and will be applied to all VAPs
and WDS Links.

Site Survey

Use this tool to scan and locate WISP Access Points and select one to associate with.
Please click on Wireless -> Site Survey. Below depicts an example for site survey.
• ESSID: Available Extend Service Set ID of surrounding Access Points.
• MAC Address: MAC addresses of surrounding Access Points.
• Signal: Received signal strength of all found Access Points.
TEW-738APBO
40