Wireless: Advanced - TRENDnet TEW-691GR Manual

4.2.2 Wireless: Advanced

Beacon Interval
Beacons are packets sent by a wireless router to synchronize wireless devices. Specify a
Beacon Period value between 20 and 1000. The default value is set to 100 milliseconds.
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.
Fragmentation 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
When an excessive number of wireless packet collisions are occurring, wireless performance
can be improved by using the RTS/CTS (Request to Send/Clear to Send) handshake protocol.
The wireless transmitter will begin to send RTS frames (and wait for CTS) when data frame
size in bytes is greater than the RTS Threshold. This setting should remain at its default value
of 2346 bytes.
Short Preamble and Slot
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.
TX Burst
Allows the wireless Router to deliver better throughput in the same period and environment in
order to increase speed.
Pkt_Aggregate
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