User's Guide

Table Of Contents
Configuring the Wireless AP
hwc_apstartup.fm
Configuring VLAN tags for Wireless APs
9034530-02, March 2010
196 HiPath Wireless Controller, Access Points and Convergence Software V7.11, User Guide
DCS Update Period – Type the time, measured in minutes that
determines the period during which the Wireless AP averages the DCS
Noise Threshold and DCS Channel Occupancy Threshold
measurements. If either one of these thresholds is exceeded, then the
Wireless AP will trigger ACS.
•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 Rate – Click a protection rate: 1, 2, 5.5, or 11 Mbps. The
default and recommended setting is 11. Only reduce the rate if there are
many 11b clients in the environment or if the deployment has areas with
poor coverage. For example, rates lower than 11 Mbps are required to
ensure coverage.
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.
9. In the Advanced dialog 11n Settings section, do the following:
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.
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).
40MHz Channel Busy Threshold – Type the extension channel
threshold percentage, which if exceeded, will disable transmissions on
the extension channel (40MHz).
Aggregate MSDUs Click an aggregate MSDU mode: Enabled or
Disabled. Aggregate MSDU increases the maximum frame transmission
size.