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DIR-842V2 AC1200 Wi-Fi Gigabit Router
User Manual
Configuring via Web-based Interface
Page 142 of 200
Parameter Description
Enable 802.11k
802.11k standard allows faster roaming of clients between access
points within the same network. Clients supporting 802.11k standard
can request a list of neighbor access points with their signal levels and
Wi-Fi channel numbers. The device does not need to probe all of
the
available channels, but selects an access point to roam to from the
list.
Move the switch to the right if you need to use 802.11k standard.
B/G protection
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.
Short GI
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 Settings /
Wireless
Network page).
• Disable: the router uses the 800 ns standard guard interval.
Beacon Period
The time interval (in milliseconds) between packets sent to
synchronize the wireless network.
RTS threshold
The minimum size (in bytes) of a packet for which an RTS frame is
transmitted.
Frag threshold
The maximum size (in bytes) of a non-fragmented packet. Larger
packets are fragmented (divided).
DTIM period
The number of beacon frames between sending DTIM messages
(messages notifying on broadcast or multicast transmission).
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