Nexxt Viking 150 User Manual page 46

Nexxt Solutions – Wireless-N 3G router
• Beacon interval – Set the desired beacon interval in this field, ranging from 20-1000 mil-
liseconds. Beacons are packets broadcast by the router to synchronize a wireless network.
The beacon Interval value indicates the frequency of the beacon. The default value is set to
100.
RTS threshold - You can specify the RTS (Request to Send) Threshold in this field. If the
•
packet is larger than the specified RTS Threshold size, the router will send RTS frames to a
particular receiving station and negotiate the sending of a data frame. The default value is
2346.
• Fragmentation threshold – It specifies the maximum size for a packet before data is frag-
mented into multiple packets. Setting the Fragmentation Threshold too low may result in
poor network performance due to the generation of an excessive number of packets. 2346
is the default setting, which is also the value recommended.
• 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 router has buffered broadcast or multicast
messages for associated clients, it sends the next DTIM with a DTIM Interval value. You can
specify the value between 1-255 Beacon Intervals. The default value is 1, which indicates
the DTIM Interval is the same as Beacon Interval.
• Enable WMM - WMM function can guarantee the packets with high- priority messages be-
ing transmitted preferentially. It is strongly recommended to have this feature enabled.
• Enable short GI - This function is enabled by default and used to set the time the receiver
waits for RF reflections to settle out before sampling data. Using a short Guard Interval can
increase throughput.
• Enabled AP Isolation - This function can isolate wireless stations on your network from
each other. Wireless devices will be able to communicate with the router but not with each
other. To use this function, check this box. AP Isolation is disabled by default.
Figure 6-11 Wireless Advanced
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