US Robotics Instant802 APSDK Administrator's Manual page 131

Field
Mode
Super G
Channel
Beacon Interval
DTIM Period
Description
The Mode defines the Physical Layer (PHY) standard being used by the radio.
Select one of these modes:
• IEEE 802.11b
IEEE 802.11g
• (the default). This mode allows both 802.11b and 802.11g cli-
ents to connect to the access point. To enable 802.11g clients only and
deny acces to 802.11b clients, select a
802.11b, such as 6Mbps. Basic rate options appear at the bottom of the
Radio tab.
Enabling Super G provides better performance by increasing radio throughput
for a radio mode. Keep in mind that with Super G enabled the access point
transmissions will consume more bandwidth.
• To enable Super G click Enabled.
• To disable Super G click Disabled.
The Channel defines the portion of the radio spectrum that the radio uses for
transmitting and receiving. The range of channels and the default channel are
determined by the Mode of the radio interface.
For most Modes, the default is Auto. Auto is the recommended mode because
it automatically detects the best channel choices based on signal strength, traf-
fic loads, and so on.
The Beacon Interval value is set in milliseconds. Enter a value within the range
20–2000.
Beacon frames are transmitted by an access point at regular intervals to
announce the existence of the wireless network. The default behaviour is to
send a beacon frame once every 100 milliseconds (or 10 per second).
Specify a DTIM period within the range 1–255.
The Delivery Traffic Information Map (DTIM) message is an element included
in some Beacon frames. It indicates which clients, currently sleeping in low-
power mode, have data buffered on the access point awaiting pickup.
The DTIM period you specify here indicates how often the clients served by
this access point will check for buffered data still on the access point awaiting
pickup.
The measurement is the count of beacons. For example, if you set the DTIM
period to 1, clients will check for buffered data on the access point at every
beacon. If you set this to 10, clients will check at every 10th beacon.
Professional Access Point
Administrator Guide
Basic
rate that is not supported by
Radio - 131