User's Manual

Chapter 24 | Wireless Interface Commands
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◆ Set the preamble to long to ensure the access point can support all 802.11b
and 802.11g clients.
Example
AP(if-wireless 0)# preamble short-or-long
This setting has not been effective !
If want to take effect, please execute make-RF-setting-effective command !
AP(if-wireless 0)#
short-guard-interval This command sets the 802.11n guard interval to 400ns (short) or 800ns (long).
Syntax
short-guard-interval <enable | disable>
Default Setting
Disabled
Command Mode
Interface Configuration (Wireless)
Command Usage
The 802.11n draft specifies two guard intervals: 400ns (short) and 800ns (long).
Support of the 400ns guard interval is optional for transmit and receive. The
purpose of a guard interval is to introduce immunity to propagation delays, echoes,
and reflections to which digital data is normally very sensitive. Enabling the short
guard interval sets it to 400ns.
Example
AP(if-wireless 0)# short-guard-interval enable
This setting has not been effective !
If want to take effect, please execute make-RF-setting-effective command !
AP(if-wireless 0)#
beacon-interval This command configures the rate at which beacon signals are transmitted from
the access point.
Syntax
beacon-interval <interval>
interval - The rate for transmitting beacon signals. (Range: 40-3500 TUs)