Reference Manual

Configure Wireless and QoS Settings
185
ProSAFE Wireless Controller WC9500
AMPDU
(802.11n only)
Select the enable radio button to allow the aggregation of several MAC
frames into a single large frame to achieve higher throughput. Enabled
is the default setting.
Enabling AMPDU could lead to better network performance.
Select the disable radio button to disable this option.
RIFS Transmission
(802.11n only)
Select the enable radio button to enable the reduced interframe space
(RIFS) option to allow transmission of successive frames at dif
ferent
transmit powers.
Enabling RIFS could lead to better network performance. Select the
disable radio button to disable this option. Disabled is the default
setting.
DTIM Interval (1-255) Enter the delivery traf
fic indication message (DTIM) or the data beacon
rate that you want to use.
The message period of the beacon delivery traffic indication is set in
multiples of beacon intervals.
Preamble Type
(802.11b/bg only)
Select one of the following radio buttons to specify the preamble type:
• Auto. Automatically
handles
both long and short preambles.
A short transmit preamble provides better performance. Auto is the
default setting.
• Long. Enables a long transmit preamble to provide a more reliable
connection or a slightly longer range.
High Density Bandwidth Select the bandwidth type:
• Auto.
Automatically handles both high-density bandwidth (that is,
high throughput) and low-density bandwidth (that is, extended
range) environments. Auto is the default setting.
• High. Enables a high bandwidth setting for dense environments in
which multiple clients in a relatively small space require high
bandwidth. One example of such an environment is a classroom in
which multiple students stream video on individual WiFi devices.
• Low. Enables a low bandwidth setting for sparse environments in
which multiple clients are spread out over a relatively large space
and do not require high bandwidth. One example of such an
environment is a large of
fice floor with multiple workers who do not
all access the Internet or intranet simultaneously.
Multicast/Broadcast Rate Limiting Select the enable radio button to enable multicast and broadcast rate
limiting, which can increase bandwidth and minimize interference. T
o
configure the maximum packet rate, enter a packet rate in the
Multicast/Broadcast Rate Limiting Packet Count field. By default,
the wireless controller uses the following maximum packets rates:
• For the 2.4 Ghz radio, up to 63 packets per second.
• For the 5 GHz radio, up to radio 300 packets per second.
Select the disable radio button to disable multicast and broadcast rate
limiting. Disabled is the default setting.
Setting Description