User's Guide

Table Of Contents
Configuring the Wireless AP
hwc_apstartup.fm
Configuring Wireless AP settings
9034530-02, March 2010
132 HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide
Channel Plan If ACS is enabled, you can define a channel plan for the
Wireless AP. Defining a channel plan allows you to limit which channels
are available for use during an ACS scan. For example, you may want to
avoid using specific channels because of low power, regulatory domain,
or radar interference. Select from the following options:
Depending on the radio used, when defining a channel plan you can
either create your customized channel plan by selecting individual
channels or you can select a default 3 or 4 channel plan.
You can use the channel plan to avoid transmission overlap on 40MHz
channels of the Wireless 802.11n APs. To avoid channel overlap between
Wireless 802.11n APs that operate on 40MHz channels, configure the
channel plan for the 5 GHz radio band to use every other channel
available.
If using half of the available channels is not an option for your
environment, do not configure a channel plan. Instead, allow ACS to
select from all available channels. This alternate solution may contribute
to increased congestion on the extension channels.
Note: ACS in the 2.4GHz radio band with 40MHz channels is not recommended
due to severe co-channel interference.
Dynamic Channel Selection (DCS) – DCS allows a Wireless AP to monitor
traffic and noise levels on the channel on which the Wireless AP is currently
operating. DCS can operate in two modes:
Monitor – When DCS is enabled in monitor mode and traffic or noise
levels exceed the configured DCS thresholds, an alarm is triggered and
an information log is generated. The DCS monitor alarm is used for
evaluating the RF environment of your deployed Wireless APs.
•Active – When DCS is enabled in active mode and traffic or noise levels
exceed the configured DCS thresholds, an alarm is triggered and an
information log is generated. In addition, the Wireless AP will cease
operating on the current channel and ACS is employed to automatically
select an alternate channel for the Wireless AP to operate on. DCS will
not trigger channel changes on neighboring Wireless APs.
Note: If DCS is enabled, DCS statistics can be viewed in the Wireless
Statistics by Wireless APs display. For more information, see Chapter 11,
“Working with reports and displays”.
Auto Tx Power Control (ATPC) – ATPC guarantees your LAN a stable RF
environment by automatically adapting transmission power signals according
to the coverage provided by the Wireless APs. ATPC can be either enabled
or disabled.