Reference Guide

Dell PowerConnect ArubaOS 5.0 Command Line Interface | Reference Guide show rf arm-profile | 1047
Command History
This command was available in ArubaOS 3.0.
Scan Interval If Scanning is enabled, the Scan Interval defines how often the AP will leave its current
channel to scan other channels in the band.
Off-channel scanning can impact client performance. Typically, the shorter the scan
interval, the higher the impact on performance. If you are deploying a large number of new
APs on the network, you may want to lower the Scan Interval to help those APs find their
optimal settings more quickly. Raise the Scan Interval back to its default setting after the
APs are functioning as desired.
Active Scan If enabled, the AP initiates active scanning via probe request. This option elicits more
information from nearby APs, but also creates additional management traffic on the
network. Active Scan is disabled by default, and should not be enabled except under the
direct supervision of Dell Support.
Scanning Shows if the AP has enabled or disabled AP scanning of other channels.
Scan Time The amount of time, in milliseconds, an AP will drift out of the current channel to scan
another channel.
VoIP Aware Scan Shows if Dell’s VoIP Call Admission Control (CAC) prevents any single AP from becoming
congested with voice calls. If CAC is enabled, 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.
Power Save Aware Scan When enabled, the AP will not scan if Power Save is active.
Video Aware Scan If Video Aware Scan is enabled in the ARM profile, the AP will not attempt to scan a
different channel if one of its clients has an active video session.
Ideal Coverage Index The coverage that the AP should try to achieve on its channel. The denser the AP
deployment, the lower this value should be.
Acceptable Coverage Index The minimal coverage that the AP should try to achieve on its channel. The denser the AP
deployment, the lower this value should be.
Free Channel Index The difference in the interference index between the new channel and current channel
must exceed this value for the AP to move to a new channel. The higher this value, the
lower the chance an AP will move to the new channel.
Backoff Time Time, in seconds, an AP backs off after requesting a new channel or power level.
Error Rate Threshold The percentage of errors in the channel that triggers a channel change.
Error Rate Wait Time Time, in seconds, that the error rate has to maintain or surpass the error rate threshold
before it triggers a channel change.
Noise Threshold Maximum level of noise (in -dBm) in a channel that triggers a channel change.
Noise Wait Time Time, in seconds, the noise has to be high to trigger a channel change.
Minimum Scan Time Time, in seconds, that a channel must be scanned before it is considered for assignment.
Load aware Scan Threshold The traffic throughput level an AP must reach before it stops scanning, in bytes/second. A
value of 0 to disables this feature.
Mode Aware Arm If enabled, ARM will turn APs into Air Monitors (AMs) if it detects higher coverage levels
than necessary. This helps avoid higher levels of interference on the WLAN. Although this
setting is disabled by default, you may want to enable this feature if your APs are deployed
in close proximity (e.g. less than 60 feet apart).
Parameter Description