Concept Guide

Parameter Description Range Default
video-aware-scan
As long as there is at least
one video frame every
100mSec the AP will reject
an ARM scanning request.
Note that for each radio
interface, video frames must
be defined in one of two
ways:
l Classify the frame as
video traffic via a session
ACL.
l 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.
— enabled
voip-aware-scan
Dell’s VoIP Call Admission
Control (CAC) prevents any
single AP from becoming
congested with voice calls.
When you enable CAC, you
should also enable voip-
aware-scan parameter 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.
— disabled
Usage Guidelines
Adaptive Radio Management (ARM) is a radio frequency (RF) resource allocation algorithm that allows each AP
to determine the optimum channel selection and transmit power setting to minimize interference and
maximize coverage and throughput. This command configures an ARM profile that you apply to a radio profile
for the 5 GHz or 2.4 GHz frequency band (see rf dot11a-radio-profile on page 733 or rf dot11g-radio-profile
on page 744).
Default Profiles
ArubaOS includes two default ARM profiles, default-a for 5 Ghz radios, and default-g for 2.4 GHz radios.
Previous 6.4.x releases support a single default ARMprofile applicable to both radio bands.
When you upgrade to ArubaOS 6.4.4.0 or later from a pre-6.4.4.0 release, any changes made to the default
ARM profile will be applied to the new default-a and default-g profiles. If the default profile was not
modified, that profile will be removed after the upgrade, when the default-a and default-g profiles are
created. Note that any user-created profiles will not be modified during the upgrade, and will retain all their
existing values.
Channel Quality
Hybrid APs and Spectrum Monitors determine channel quality by measuring channel noise, non-Wi-Fi
(interferer) utilization and duty-cycles, and certain types of Wi-Fi retries. Regular APs using the ARM feature
Dell Networking W-Series ArubaOS 6.5.x | Reference Guide rf arm-profile | 728