D-Link UAP
Software User Manual
12/10/09
Page 42
Wireless Settings
34CSFP6XXUAP-SWUM100-D13
U
SING
THE
802.11
H
W
IRELESS
M
ODE
There are a number of key points about the IEEE 802.11h standard:
•
802.11h only works for the 802.11a band. It is not required for 802.11b or 802.11g.
•
If you are operating in an 802.11h enabled domain, the AP attempts to use the channel you assign. If the channel has
been blocked by a previous radar detection, or if the AP detects a radar on the channel, then the AP automatically
selects a different channel.
•
When 802.11h is enabled, the AP will not be operational in the 5GHz band for at least 60 seconds due to radar
scanning.
•
Setting up WDS links may be difficult when 802.11h is operational. This is because the operating channels of the two
APs on the WDS link may keep changing depending on channel usage and radar interference. WDS will only work if
both the APs operate on the same channel. For more information on WDS, see
“Configuring Load Balancing” on
page 62
.
Channel
Select the
Channel
.
The range of available channels is determined by the mode of the radio interface and the country code
setting. If you select Auto for the channel setting, the AP scans available channels and selects a
channel where no traffic is detected.
The
Channel
defines the portion of the radio spectrum the radio uses for transmitting and receiving.
Each mode offers a number of channels, depending on how the spectrum is licensed by national and
transnational authorities such as the Federal Communications Commission (FCC) or the International
Telecommunication Union (ITU-R).
Note:
After you configure the wireless settings, you must click
Apply
to apply the changes and to save the settings.
Changing some settings might cause the AP to stop and restart system processes. If this happens, wireless clients
will temporarily lose connectivity. We recommend that you change AP settings when WLAN traffic is low.
Table 13: Wireless Settings (Cont.)
Field
Description