Users Guide

Dell Networking W-Series ArubaOS 6.4.x| User Guide Adaptive Radio Management | 510
Chapter 20
Adaptive Radio Management
Dell’s Adaptive Radio Management (ARM) takes the guesswork out of RF management by using automatic,
infrastructure-based controls to maximize client performance and enhance the stability and predictability of
the entire Wi-Fi network.
ARMFeature Overviews
The following sections provide a general overview of Adaptive Radio Management feature:
l Understanding ARM on page 510
l Client Match on page 512
l ARM Coverage and Interference Metrics on page 514
Configuring ARM Settings
The section below describes the steps to configure the ARM function to automatically select the best channel
and transmission power settings for each AP on your WLAN:
l Configuring ARM Profiles on page 514
l Assigning an ARM Profile to an AP Group on page 524
l Configuring Non-802.11 Noise Interference Immunity on page 530
l Using Multi-Band ARM for 802.11a/802.11g Traffic on page 525
l Reusing Channels to Control RX Sensitivity Tuning on page 529
l Band Steering on page 525
l Enabling Traffic Shaping on page 527
l Spectrum Load Balancing on page 529
ARM Troubleshooting
l Troubleshooting ARM on page 530
Understanding ARM
Dell's Adaptive Radio Management (ARM) technology maximizes WLAN performance even in the highest traffic
networks by dynamically and intelligently choosing the best 802.11 channel and transmit power for each Dell
AP in its current RF environment.
Dell’s ARM technology solves wireless networking challenges such as large deployments, dense deployments,
and installations that must support VoIP or mobile users. Deployments with dozens of users per access point
can cause network contention and interference, but ARM dynamically monitors and adjusts the network to
ensure that all users are allowed ready access. ARM provides the best voice call quality with voice-aware
spectrum scanning and call admission control.
With earlier technologies, network administrators would have to perform a site survey at each location to
discover areas of RF coverage and interference, and then manually configure each AP according to the results
of this survey. Static site surveys can help you choose channel and power assignments for APs, but these
surveys are often time-consuming and expensive, and only reflect the state of the network at a single point in
time. ARM is more efficient than static calibration, and, unlike older technologies, it continually monitors and
adjusts radio resources to provide optimal network performance. Automatic power control can adjust AP