Dell PowerConnect W-7200 Series Reference Manual page 699

Parameter
Ideal Coverage Index
Acceptable Coverage Index
Free Channel Index
Backoff Time
Error Rate Threshold
Error Rate Wait Time
Noise Threshold
Noise Wait Time
Minimum Scan Time
Load aware Scan Threshold
Mode Aware Arm
Dell PowerConnect W-Series ArubaOS 6.2 | Reference Guide
Description
Default: enabled
The Dell coverage index metric is a weighted calculation
based on the RF coverage for all DellAPs and neighboring
APs on a specified channel. The Ideal Coverage Index
specifies the ideal coverage that an AP should try to
achieve on its channel. The denser the AP deployment, the
lower this value should be.
For multi-band implementations, the Acceptable Coverage
Index specifies the minimal coverage an AP it should
achieve on its channel. The denser the AP deployment, the
lower this value should be.
The current free channel index value. The Dell Interference
index metric measures interference for a specified channel
and its surrounding channels. This value is calculated and
weighted for all APs on those channels (including 3rd-party
APs).
An AP will only move to a new channel if the new channel
has a lower interference index value than the current
channel. Free Channel Index specifies the required
difference between the two interference index values
before the AP moves to the new channel. The lower this
value, the more likely it is that the AP will move to the new
channel.
After an AP changes channel or power settings, it waits for
this backoff time interval before it asks for a new
channel/power setting.
The minimum percentage of PHY errors and MAC errors in
the channel that will trigger a channel change.
Minimum time in seconds the error rate on the AP has to
exceed its defined error rate threshold before it triggers a
channel change.
Maximum level of noise in a channel that triggers a channel
change.
Minimum time in seconds the noise level has to exceed the
Noise Threshold before it triggers a channel change on the
AP.
Minimum number of times a channel must be scanned
before it is considered for assignment. Best practices are to
configure a Minimum Scan Time between 1-20 scans.
The Load Aware Scan Threshold is the traffic throughput
level an AP must reach before it stops scanning. Load
aware ARM preserves network resources during periods of
high traffic by temporarily halting ARM scanning if the load
for the AP gets too high.
Shows if the mode-aware ARM feature has been enabled
or disabled for this AP. If enabled, ARM will turn the AP into
an Air Monitors (AMs) if it detects higher coverage levels
show ap config | 699