Airlink101 AR685W - Manual (Page 45)

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3.2.4 Advanced Settings
You can set advanced wireless LAN parameters of this router. The parameters include
Authentication Type, Fragment Threshold, RTS Threshold, Beacon Interval, Preamble Type, etc.
It is suggested not to change these parameters unless you know what effect the changes will
have on this router.
Parameters Description
Fragment Threshold “Fragment Threshold” specifies the maximum size of packet
during the fragmentation of data to be transmitted. The default
value is 2346.
RTS Threshold
When the packet size is smaller than the RTS threshold, the
wireless router will not use the RTS/CTS mechanism to send this
packet.
Beacon Interval
The interval of time that this wireless router broadcast a beacon.
Beacon is used to synchronize the wireless network.
DTIM Period Set the DTIM period of wireless radio. Do not modify default
value if you don’t know what it is, default value is 3.
Data Rate
Set the wireless data transfer rate to a certain value. Since most
of wireless devices will negotiate with each other and pick a
proper data transfer rate automatically, it’s not necessary to
change this value unless you know what will happen after
modification.
N Data Rate Same as above, but only for 802.11n clients.