User's Manual

44
Channel Bandwidth
Select the designed channel bandwidth for the wireless radio.
• 20MHz - Select if you are not using any 802.11n wire-
less clients.
• 20/40MHz - Select if you are using both 802.11n and
non-802.11n wireless devices.
• 20/40/80MHz - Select if you are using 802.11ac,
802.11n and non-802.11n wireless devices.
Guard Interval
Select the guard interval manually for Wireless-N connections.
The two options are Short (400 nanoseconds) and Long (800
nanoseconds). The default is Auto.
CTS Protection Mode
CTS (Clear-To-Send) Protection Mode boosts the access point's
ability to catch all Wireless-G transmissions, but it severely
decreases performance. By default, CTS Protection Mode is
disabled, but the access point will automatically enable this
feature when Wireless-G devices are not able to transmit to the
access point in an environment with heavy 802.11b traffic.
Beacon Interval
The access point transmits beacon frames at regular intervals to
announce the existence of the wireless network. Enter the
interval between the transmissions of beacon frames. The value
range is between 40 and 1000 milliseconds and default is 100
milliseconds.
DTIM Interval
Enter the Delivery Traffic Information Map (DTIM) period, an
integer from 1 to 255 beacons. The default is 1 beacon.
The DTIM message is an element included in some beacon
frames. It indicates which client stations, currently sleeping in
low-power mode, have data buffered on the access point await-
ing pickup.
The DTIM period that you specify indicates how often the
clients served by this WAP device should check for buffered
data still on the access point awaiting pickup.
For example, if you enter 1, clients check for buffered data on
the access point at every beacon. If you enter 10, clients check
on every 10th beacon.