428| AccessPoints ( APs) DellPowerConnect W- Series ArubaOS 6.2 | User Guide
Parameter Description
RX Sensitivity Tuning
BasedChannel Reuse
Insome dense deployments, it is possible for APs to hear other APs on the same channel. This
createsco-channel interference and reduces the overall utilization of the channel in a gi ven
area. Channel reuse enables dynamic control over the receive (Rx)sensitivity in order to improve
spatialreuse of the channel .
Thisfeature is di sabled by default. To enable this feature, click the RX SensitivityTuning Based
Channel Reuse drop-down list and select either staticordynamic.To disable thisfeature, click the
RX Sensitivity Tuning BasedC hannel Reuse drop-down list and select disable. For details on
eachof these modes, see "Reusing Channelsto Con trol RX Sensitivity Tuning" on page 360.
NOTE:Do not enable the Channel Reuse feature if "Non 802.11 Interf erence Immunity" on
page426 is set to level 3or higher. Alevel-3 to level-4 Noise Imm unity settingi s not compatible
with theChannel Reusefeature. The channel reuse feature applies to non-DFS channels only. It
isi nternally disabled for DFS channels and is does not affect DFS radar signature detection.
RX Sensitivity Threshold RX sensitivitytuning based channel reuse threshold, in - dBm.
Ifthe Rx Sensitivity Tuning Based Channel reuse feature is set tostatic mode, this parameter
manually setsthe AP’ s Rx sensitivitythreshold
(in-dBm). The AP w ill filter out and ignore weak signals that are below the channel threshold
signal strength.
Ifthe value for this parameter is set to zero, the featurew ill automatically determine an
appropriatethreshold.
Protectionfor 802.11b
Clients
(For802.11g RF Management Profiles only) Enable or di sable protectionfor 802.11b clients. This
parameteri senabl ed bydefault. Disabli ng thisfeature may improve performance if there are no
802.11bclients on the WLAN.
WARNING:Disabli ng protectionviol atesthe 802.11 standard and may causei nteroperability
issues.If this feature is disabled on a WLAN with 802.11bcl ients, the802.11b clients will not
detectan 802.11g client talking and can potentially transmit at the same time, thus garbling both
frames.
Associated Profil es
ARMprofil e Dell'spropri etaryAdaptive Radi o Management (ARM) technology maximizes WLAN performance
bydynamical ly and intelligently choosing the best802.11 channel and transmit power for each
Dell AP in its current RF environment.
EveryRF management profile references an ARM profile. If you specify an active and enabled
ARMprofil e, you do notneed to manual ly configure theC hannel andTransmi t Power parameters
forthis 802.11a or 802.11gprofile. Fordetails on referencing an ARM profile, see "Assigning an
ARM Profile" on page 430.
TheAdaptive Radio Managem ent(ARM) profile associated with this 802.11a or 802.11gradio
profile appearsbeneath the 802.11a/802.11gradio profile nam e in the profiles list. To change the
ARMprofil e associatedwi than 802.11a or 802.11g radio profile, select the associatedARM
profile in the profiles list thencl ick thedrop-dow n list in the Profile Details section of the page to
selecta new profile.
High-throughputradio
profile
Ahigh-throughput profile manages 40 MHz tolerance settings, and controls whether or not APs
usingthis profil e will advertise intolerance of 40 MHz operation. (Thisoption is disabled by
default,al lowing 40 MHz operation.)
Ahigh-throughput profile also determines whether an AP radio using the profile w ill stop using
the40 MHz channels surrounding APsor stations advertise 40 MHz intolerance. This option is
enabled bydefault. For details on referencing a high-throughput radio profile, see"Assigning a
High-throughput Profile" on page 429.
Thehi gh-throughputradio profil e associatedwi ththis 802.11a or 802.11gradi o profile appears
beneaththe 802.11a/802.11gradio profile nam e in the profiles list. To change the high-throughput
radio profile associatedw ith an 802.11aor 802.11g radio profile, select the associated high-
throughputradio profile i n theprofil esl istthen cli ckthe drop-down l isti n theP rofile Details
sectionof the page to select a new profile.