User guide

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Cisco WLAN Controller Web Interface User Guide
OL-7416-04
Chapter 5 Wireless Menu Bar Selection
802.11b/g Global Parameters
Table 5-44 RF Channel Assignment
Parameter Description
Channel Assignment Method Dynamic channel assignment has three modes.
Automatic - The channel assignment is periodically updated for all
access points that permit this operation.
On Demand - Channel assignments are updated when the Invoke
Channel Update Now button is selected.
OFF - No dynamic channel assignments occur and value are set to
their global default.
Default is Automatic.
Avoid Foreign AP Interference Enabled or Disabled. Enable this Radio Resource Management
(RRM) foreign 802.11 interference-monitoring parameter to have
Radio Resource Management consider interference from foreign
(non-Cisco access points outside the RF/mobility domain) access
points when assigning channels to Cisco access points. Disable this
parameter to have Radio Resource Management ignore this
interference.
In certain circumstances with significant interference energy (dB)
and load (utilization) from foreign access points, Radio Resource
Management may adjust the channel assignment to avoid these
channels (and sometimes adjacent channels) in Cisco access points
close to the Foreign APs to increase capacity and reduce variability
for the Cisco WLAN Solution.
Avoid Foreign AP Load Enabled or Disabled. Enable this Radio Resource Management
(RRM) bandwidth-sensing parameter to have controllers consider
the traffic bandwidth used by each access point when assigning
channels to access points. Disable this parameter to have Radio
Resource Management ignore this value.
In certain circumstances and with denser deployments, there may
not be enough channels to properly create perfect channel re-use. In
these circumstances, Radio Resource Management can assign better
re-use patterns to those APs that carry more traffic load.
Avoid non-802.11b Noise Enabled or Disabled. Enable this Radio Resource Management
(RRM) noise-monitoring parameter to have access points avoid
channels that have interference from non-Access Point sources,
such as microwave ovens or Bluetooth devices. Disable this
parameter to have Radio Resource Management ignore this
interference.
In certain circumstances with significant interference energy (dB)
from non-802.11 noise sources, Radio Resource Management may
adjust the channel assignment to avoid these channels (and
sometimes adjacent channels) in access points close to the noise
sources to increase capacity and reduce variability for the Cisco
WLAN Solution.