D-Link DIR-853 User Manual page 132

DIR-853 AC1300 MU-MIMO Wi-Fi Gigabit Router
with 3G/LTE Support and USB Port 3.0
User Manual
Parameter
B/G protection
Short GI
Beacon period
RTS threshold
Frag threshold
DTIM period
Station Keep Alive
When you have configured the parameters, click the APPLY button.
Available on the 2.4 GHz tab.
The 802.11b and 802.11g protection function is used to minimize
collisions between devices of your wireless network.
Select a value from the drop-down list.
Auto: The protection function is enabled and disabled automatically
depending on the state of the network (this value is recommended if
your wireless local area network consists of both 802.11b and
802.11g devices).
Always On: The protection function is always enabled (this setting
can substantially lower the efficiency of your wireless network).
Always Off: The protection function is always disabled.
Guard interval (in nanoseconds). This parameter defines the interval
between symbols transmitted when the router is communicating to
wireless devices.
Enable: the router uses the 400 ns short guard interval. Only for the
wireless network operating modes which support 802.11n and
802.11ac standards (see the value of the Wireless mode drop-
down list on the Wi-Fi / Basic Settings page).
Disable: the router uses the 800 ns standard guard interval.
The time interval (in milliseconds) between packets sent to
synchronize the wireless network.
The minimum size (in bytes) of a packet for which an RTS frame is
transmitted.
The maximum size (in bytes) of a non-fragmented packet. Larger
packets are fragmented (divided).
The number of beacon frames between sending DTIM messages
(messages notifying on broadcast or multicast transmission).
The time interval (in seconds) between keep alive checks of wireless
devices from your WLAN. When the value 0 is specified, the
checking is disabled.
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Configuring via Web-based Interface
Description