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SonicOS Enhanced 4.0 Administrator Guide
Advanced Radio Settings
The following other advanced settings can be configured.
Step 1 Enable Short Slot Time: Select Enable Short Slot Time to increase performance if you only
expect 802.11g traffic. 802.11b is not compatible with short slot time.
Step 2 Select High from the Transmit Power menu to send the strongest signal on the WLAN. For
example, select High if the signal is going from building-to-building. Medium is recommended
for office-to-office within a building, and Low or Lowest is recommended for shorter distance
communications.
Step 3 Select Short or Long from the Preamble Length menu. Short is recommended for efficiency
and improved throughput on the wireless network.
Step 4 The Fragmentation Threshold (bytes) is 2346 by default. Increasing the value means that
frames are delivered with less overhead but a lost or damaged frame must be discarded and
retransmitted.
Step 5 The RTS Threshold (bytes) is 2432 by default. If network throughput is slow or a large number
of frame retransmissions is occurring, decrease the RTS threshold to enable RTS clearing.
Step 6 The default value for the DTIM Interval is 3. Increasing the DTIM Interval value allows you to
conserve power more effectively.
Step 7 The Association Timeout (seconds) is 300 seconds by default. If your network is very busy,
you can increase the timeout by increasing the number of seconds in the Association Timeout
(seconds) field.
Step 8 Set the Maximum Client Associations to limit the number of stations that can connect
wirelessly at one time. The default is 32.
Step 9 Data Rate: Select the speed at which the data is transmitted and received. Best automatically
selects the best rate available in your area given interference and other factors. You can select:
Best, 6 Mbps, 9 Mbps, 12 Mbps, 18 Mbps, 24 Mbps, 36 Mbps, 48 Mbps, or 54 Mbps.
Step 10 Protection Mode: Protection can decrease collisions, particularly where you have two