Concept Guide

Parameter Description Range Default
l num: Entering a channel number
disables 40 MHz mode and activates
20 MHz mode for the entered channel.
l num+: Entering a channel number with
a plus (+) sign selects a primary and
secondary channel for
40 MHz and 80 Mhz modes. The
number entered becomes the primary
channel and the secondary channel is
determined by increasing the primary
channel number by 4. Example: 157+
represents 157 as the primary channel
and 161 as the secondary channel.
l num-: Entering a channel number with
a minus (-) sign selects a primary and
secondary channel for
40 MHz and 80 Mhz modes. The
number entered becomes the primary
channel and the secondary channel is
determined by decreasing the primary
channel number by 4. Example: 157-
represents 157 as the primary channel
and 153 as the secondary channel.
NOTE: 20 MHz clients are allowed to
associate when a primary and secondary
channel are configured; however, the
client will only use the primary channel.
channel-reuse
When you enable the channel reuse
feature, it can operate in either of the
following three modes; static, dynamic or
disable. (This feature is disabled by
default.)
l Static mode: This mode of operation is
a coverage-based adaptation of the
Clear Channel Assessment (CCA)
thresholds. In the static mode of
operation, the CCA is adjusted
according to the configured
transmission power level on the AP, so
as the AP transmit power decreases as
the CCA threshold increases, and vice
versa.
l Dynamic mode: In this mode, the Clear
Channel Assessment (CCA) thresholds
are based on channel loads, and take
into account the location of the
associated clients. When you set the
Channel Reuse This feature is
automatically enabled when the
wireless medium around the AP is busy
greater than half the time. When this
mode is enabled, the CCA threshold
adjusts to accommodate transmissions
between the AP its most distant
associated client.
enabled
disabled
enabled
Dell Networking W-Series ArubaOS 6.5.x | Reference Guide rf dot11a-radio-profile | 735