User's Manual

Chapter 4 - Operation and Administration
BreezeACCESSS VL System Manual
4-78
Maximum Contention Window
The Maximum Contention Window parameter defines the upper limit for
the maximum number C used in the back-off algorithm as described in
Minimum Contention Window above.
The available values are 7, 15, 31, 63, 127, 255, 511 and 1023.
The default value is 1023.
Multicast Modulation Level (AU only)
The Multicast Modulation Level parameter defines the modulation level
used for transmitting multicast and broadcast data frames. Multicast
and broadcast transmissions are not acknowledged; therefore if a
multicast or broadcast transmission is not properly received there is no
possibility of retransmitting. It is recommended that you set a lower
modulation level for broadcast and multicast frame transmissions to
increase the probability that they are received without errors.
The Multicast Modulation Level parameter is applicable only to data
frames. Beacons and other wireless management and control frames are
always transmitted at the lowest modulation level according to the Sub
Band.
The minimum value for the Multicast Modulation Level is defined by the
Sub Band in use.
The maximum value for the Multicast Modulation Level is defined by the
Sub Band in use and the HW revision of the unit. Units with HW
revision A support a maximum value of 7, while units with HW revision
B and higher support a maximum value of 8.
For information on how to view the Sub Bands supported by the unit
and the supported parameters’ values and options, refer to Show
Country Dependent Parameters on page 4-9.
The default value is the lowest supported modulation level.