Users 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 752 or rf dot11g-radio-profile
on page 763).
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
derive channel quality values by measuring the noise floor for that channel.
Client Match
the ARM client match feature continually monitors a client's RF neighborhood to provide ongoing client
bandsteering and load balancing, and enhanced AP reassignment for roaming mobile clients. This feature is
recommended over the legacy bandsteering and spectrum load balancing features, which, unlike client match,
do not trigger AP changes for clients already associated to an AP.
Legacy 802.11a/b/g devices do not support the client match feature. When client match is enabled on 802.11n-
capable devices, the client match feature overrides any settings configured for the legacy bandsteering, station
handoff assist or load balancing features. 802.11ac-capable devices do not support the legacy bandsteering, station
hand off or load balancing settings, so these APs must be managed on using client match.
When this feature is enabled on an AP, that AP is responsible for measuring the RF health of its associated
clients. The APreceives and collects information about clients in its neighborhood, and periodically sends this
information to the controller. The controller aggregates information it receives from all APs using client match,
Dell Networking W-Series ArubaOS 6.4.x | User Guide rf arm-profile | 748