WESM zl Management and Configuration Guide WT.01.28 and greater

3-32
Radio Port Configuration
Configuring Radio Settings
■ Short Preambles only (802.11 bg radios only)
■ RTS Threshold
■ Beacon Interval
■ DTIM Period
■ Self Healing Offset
See “Setting Advanced Radio Properties” on page 3-17 for more information on each
setting. Setting the DTIM Period is slightly different for the targeted radio configura-
tion; see “Setting DTIM Periods for a Particular Radio” on page 3-32.
You can alter any of these settings for a particular radio. On the Network Setup >
Radio > Configuration screen, select the radio and click the Edit button. On the
Configuration screen that is displayed, locate the Advanced Properties section.
Situations in which you might alter these settings on a radio include, but are not
limited to:
■ This radio uses two non-matching antennas—In the Antenna Mode field, use the
drop-down menu to select the antenna that the radio should use.
■ You want a different module to adopt this RP—Change the value in the Adoption
Preference ID field to match the module preference ID for the module that should
adopt this RP.
■ The RF network supported by this radio experiences many collisions, perhaps
caused by “hidden” stations—Lower the value in the RTS Threshold field.
■ This radio supports multicast video streaming traffic and users have reported
jittery video—Have the radio send DTIMs more frequently by lowering the
values for the DTIM Period. You could also lower the value in the Beacon Interval
field.
■ This radio is configured to raise its transmit power in response to a failed
neighbor—Configure the Self Healing Offset field so that the radio does not raise
its power too high.
Setting DTIM Periods for a Particular Radio. For radio adoption defaults, you
specify a single value for the DTIM period (the number of beacons between DTIMs).
(See “Setting the DTIM Period” on page 3-23.)
However, a particular RP radio sends out beacons on each of its four BSSIDs, and
the Wireless Edge Services zl Module allows you to set a different DTIM period for
each BSSID. In this way, you can, for example, set a higher DTIM period on a BSSID
that supports a traditional data WLAN, but a lower DTIM period on a BSSID that
supports a voice WLAN.