3Com WX1200 Reference Manual page 268

268 C 7: C
HAPTER ONFIGURING
W P
IRELESS ARAMETERS
CAUTION: Countermeasures affect wireless service on a radio. When a
MAP radio is sending countermeasures, the radio is disabled for use by
network traffic, until the radio finishes sending the countermeasures.
Configured—Causes radios to attack only devices specified in the
attack list on the WX switch (on-demand countermeasures). When
this option is used, devices found to be rogues by other means,
such as policy violations or by determining that the device is
providing connectivity to the wired network, are not attacked.
Enable Active Scan—Sends probe any requests (probe requests with a
null SSID name), to solicit probe responses from other access points.
Radios also passively scan by listening for beacons and probe
responses. When active scan is disabled, radios perform passive
scanning only.
802.11 Attributes Tab
The 802.11 Attributes tab lists the settings of the following options:
Beacon Interval—Interval at which the MAP advertises its SSIDs. You
can specify from 25 to 8191 milliseconds (ms). The default is 100 ms.
DTIM Period—Number of beacons (1 to 31) the MAP transmits before
transmitting the multicast and broadcast frames stored in its buffers.
The default is 1.
Fragment Threshold—Frame length (256 to 2346 bytes) at which the
long-retry-count is applicable instead of the short-retry-count. The
default is 2,346 bytes.
Max. Tx MSDU Lifetime—Maximum amount of time, from 500 ms to
250,000 ms (250 seconds), the MAP can hold an outbound frame in
buffer storage. The default value is 2,000 ms (2 seconds).
Max. Rx MSDU Lifetime—Maximum amount of time, from 500 ms to
250,000 ms (250 seconds), the MAP can hold an inbound frame in
buffer storage. The default is 2000 ms (2 seconds).
RTS Threshold—Minimum length (256 to 3000 bytes) a frame can be
for the MAP to use the Request-To-Send/Clear-To-Send (RTS/CTS)
method to send the frame. Frames smaller than the RTS threshold are
not sent using the RTS/CTS method. The default is 2346 bytes.
Enable Long Preambles—Enables advertisement of long preambles for
802.11b/g radios. This option is enabled by default. This option
applies only to 802.11b/g radios.