User's Manual

hwc_apstartup.fm
Configuring the Wireless AP
Configuring Wireless AP settings
A31003-W1050-U100-2-7619,
March 2008
HiPath Wireless Controller, Access Points and Convergence Software V5 R1 , C20/C2400 User Guide 137
• Channel Bonding – Click the bonding method, Up or Down. The primary
channel (20MHz) is bonded with an extension channel that is either
20MHz above (bonding up) or 20MHz below (bonding down) of the
primary channel. Depending on the channel that is selected in the
Request New Channel drop-down list, you may be prevented from
bonding Up or Down in the Channel Bonding drop-down list.
•Guard Interval – Click a guard interval, Long or Short, when a 40MHz
channel is used. It is recommended to use a short guard interval in small
rooms (for example, a small office space) and a long guard interval in
large rooms (for example, a conference hall).
• Max Tx Power – For each radio, click the appropriate Tx power level from
the Max TX Power drop-down list. The values in the Max TX Power
drop-down is in dBm (dBm is an abbreviation for the power ratio in decibel
(dB) of the measured power referenced to one milliwatt).
•Preamble – Click a preamble type for 11b-specific (CCK) rates: Short,
Long, or Auto. The recommended value is Auto. Click Short if you are
sure that there is no pre-11b AP or a client in the vicinity of this AP. Click
Long if compatibility with pre-11b clients is required.
• Protection Mode – Click a protection mode: None, Auto, or Always.
The default and recommended setting is Auto. Click None if 11b APs and
clients are not expected. Click Always if you expect many 11b-only
clients.
•Protection Type – Click a protection type: CTS Only or RTS CTS. The
default and recommended setting is CTS Only. Click RTS CTS only if an
11b AP that operates on the same channel is detected in the
neighborhood, or if there are many 11b-only clients in the environment.
13. In the 11n Settings section, do the following:
• Protection Mode – For each radio, click a protection mode: None
, Auto,
or Always. The default and recommended setting is Auto. Click None if
11b APs and clients are not expected. Click Always
if you expect many
11b-only clients.
• 40MHz Protection Mode – Click a protection type, CTS Only or RTS-
CTS, or None, when a 40MHz channel is used. This protects high
throughput transmissions on extension channels from interference from
non-11n APs and clients.
• 40MHz Prot. Channel Offset – Select a 20MHz channel offset if the
deployment is using channels that are 20MHz apart (for example, using
channels 1, 5, 9, and 13) or a 25MHz channel offset if the deployment is
using channels that are 25MHz apart (for example, using channels 1, 6,
and 11).