SMC Networks E21011, User Manual

Page: 206 / 264

C
HAPTER
26
| Wireless Interface Commands
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C
OMMAND
U
SAGE
◆
Using a short preamble instead of a long preamble can increase data
throughput on the access point, but requires that all clients can support
a short preamble.
◆
Set the preamble to long to ensure the access point can support all
802.11b and 802.11g clients.
E
XAMPLE
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).
S
YNTAX
short-guard-interval < enable | disable >
D
EFAULT
S
ETTING
Disabled
C
OMMAND
M
ODE
Interface Configuration (Wireless)
C
OMMAND
U
SAGE
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.
E
XAMPLE
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)#