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21
TRENDnet User’s Guide
TEW-691GR
Advanced wireless settings
Wireless > Advanced
These settings are advanced options that can be configured to change advanced
wireless broadcast specifications. It is recommended that these settings remain set to
their default values unless you are knowledgeable about the effects of changing these
values. Changing these settings incorrectly can degrade performance.
• Beacon Interval: A beacon is a management frame used in wireless networks that
transmitted periodically to announce the presence and provide information
about the router’s wireless network. The interval is the amount time between
each beacon transmission.
Default Value:100 milliseconds (range: 25-1000)
• DTIM: A DTIM is a countdown informing clients of the next window for listening
to broadcast and multicast messages. When the wireless router has buffered
broadcast or multicast messages for associated clients, it sends the next DTIM
with a DTIM Interval value. Wireless clients detect the beacons and awaken to
receive the broadcast and multicast messages. The default value is 1. Valid
settings are between 1 and 255.
• Fragment Threshold: Wireless frames can be divided into smaller units
(fragments) to improve performance in the presence of RF interference and at
the limits of RF coverage. Fragmentation will occur when frame size in bytes is
greater than the Fragmentation Threshold. This setting should remain at its
default value of 2346 bytes. Setting the Fragmentation value too low may result
in poor performance.
• RTS Threshold – The Request To Send (RTS) function is part of the networking
protocol. A wireless device that needs to send data will send a RTS before sending
the data in question. The destination wireless device will send a response called
Clear to Send (CTS). The RTS Threshold defines the smallest data packet size
allowed to initiate the RTS/CTS function.
Default Value: 2346 (range: 256-2346)
• TX Burst: Allows the wireless Router to deliver better throughput in the same
period and environment in order to increase speed.
• Short Preamble: Using a short (400ns) guard interval can increase throughput.
However, it can also increase error rate in some installations, due to increased
sensitivity to radio-frequency reflections. Select the option that works best for
your installation.
• Multicast-to-Unicast: Some applications require multicast communication (also
called IP multicast which is the delivery of information to a specific group of
computers or devices in a single transmission) typically used in media streaming
applications. Enable this feature when using application that requires multicast
traffic.
Wireless Distribution System (WDS)
Wireless > Basic
WDS or Wireless Distribution System allows your router to establish a wireless bridge
connection to another access point. To use this feature the access point you want to
connect has to also support WDS mode.
1. Log into your router management page (see “Access your router management page”
on
page 24).
2. Select Enable in the Wirelesss Distribution System section.
