Dell 6.2 Ideal Coverage, Range of possible values is, Acceptable, Coverage Index, Error Rate

Setting	Description
	Default: enabled
VoIP Aware	Dell’s VoIP Call Admission Control (CAC) prevents any single AP from becoming congested with voice
Scan	calls. When you enable CAC, you should also enable VoIP Aware Scan in the ARM profile, so the AP will
	not attempt to scan a different channel if one of its clients has an active VoIP call. This option requires
	that Scanning is also enabled.
	Default: disabled
Power Save	If enabled, the AP will not scan a different channel if it has one or more clients that is in power save
Aware Scan	mode.
	Default: disabled
Video Aware	As long as there is at least one video frame every 100 mSec the AP will reject an ARM scanning request.
Scan	Note that for each radio interface, video frames must be defined in one of two ways:
	• Classify the frame as video traffic via a session ACL.
	• Enable WMM on the WLAN’s SSID profile and define a specific DSCP value as a video stream. Next,
	create a session ACL to tag the video traffic with the that DSCP value.
Ideal Coverage	The Dell coverage index metric is a weighted calculation based on the RF coverage for all DellAPs and
Index	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.
	The range of possible values is 2–20.
	Default: 10
	For additional information on how this the Coverage Index is calculated, see "ARM Metrics" on page 361
Acceptable	For multi-band implementations, the Acceptable Coverage Index specifies the minimal coverage an AP it
Coverage Index	should achieve on its channel. The denser the AP deployment, the lower this value should be. The range
	of possible values is 1–6.
	Default: 4
Free Channel	The Dell Interference index metric measures interference for a specified channel and its surrounding
Index	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. The range of possible values is 10–40.
	Default: 25
	For additional information on how this the Channel Index is calculated, see "ARM Metrics" on page 361
Backoff Time	After an AP changes channel or power settings, it waits for the backoff time interval before it asks for a
	new channel/power setting. The range of possible values is 120–3600 seconds.
	Default: 240 seconds
Error Rate	The minimum percentage of PHY errors and MAC errors in the channel that will trigger a channel
Threshold	change.
	Default: 50%
Error Rate Wait	Minimum time in seconds the error rate has to exceed the Error Rate Threshold before it triggers a
Time	channel change.
	Default: 30 seconds
Noise Threshold	Maximum level of noise in channel that triggers a channel change. The supported range for this setting is
	0–2,147,483,647 dBm.
	Default 75 dBm

Noise Wait

Minimum time in seconds the noise level has to exceed the Noise Threshold before it triggers a channel

353 Adaptive Radio Management (ARM) Dell PowerConnect W-Series ArubaOS 6.2 User Guide