User's Manual

24
Wireless LAN Parameters
These parameters can be changed if needed, but the default advanced setting usually work
well. It is recommended that you keep all these values in factory default.
RTS Threshold: RTS Threshold is a mechanism implemented to prevent the “Hidden Node”
problem. When the RTS is activated, the station and its Access Point will use a (RTS/CTS)
mechanism for data transmission. The default setting is 2346.
Fragmentation Length: Fragmentation mechanism is used for improving the efficiency
when there is high traffic within the wireless network. If you transmit large files in a wireless
network, you can enable the Fragmentation Threshold and specify the packet size. This
specifies the maximum size a data packet will be before splitting and creating a new packet
and we suggest remaining at its default setting of 2,346.
Beacon Interval: This value indicates the frequency interval of the beacon. A beacon is a
packet broadcast by the Access Point to keep the network synchronized. A beacon includes
the wireless LAN service area, the AP address, the Broadcast destination addresses, a time
stamp, Delivery Traffic Indicator Maps, and the Traffic Indicator Message (TIM).
DTIM Interval: This value indicates the interval of the Delivery Traffic Indication Message
(DTIM). A DTIM field is a countdown field informing clients of the next window for
listening to broadcast and multicast messages. When the Access Point has buffered broadcast
or multicast messages for associated clients, it sends the next DTIM with a DTIM Interval
value. Clients can hear the beacons and awaken to receive the broadcast and multicast
messages.
Preamble Type: The preamble defines the length of the PLCP synchronization field for
communication between the Access Point and Network Card. (Short. Preamble is more
efficient but less compatibility) Select the appropriate preamble type and click the Apply
button to set it.