Users Guide

454| Adaptive Radio Management Dell Networking W-Series ArubaOS 6.5.x| User Guide
l Amount of Non-unicast frames (measured in %)
l Amount of Fragmented frames (measured in %)
l Amount of Bandwidth seen on the channel (measured in kbps)
l Amount of PHY errors seen on the channel (measured in %)
l Amount of MAC errors seen on the channel (measured in %)
l Noise floor value for the specified AP
Starting from ArubaOS 6.5, the following enhancements have been made to resolve issues that occur with the
distributed channel/power algorithm:
l Push random channel assignments to APs: To support the random channel assignment feature, set
Assignment parameter in the ARM profile to maintain. Once this is done, random channels are pushed
from the local controller STM/SAPM to APs that belong to a specific ap-group. This helps in replacing the
dynamic channel change solution in a high density environment, there by overcoming the issue with
convergence. Random channel assignment helps in certain customer deployments where administrators
want to control channels assigned and also for initial channel assignment to seed ARM channel
computation.
l Reduce interference channel change: To reduce the number of interference channel changes and to
configure the weight of interfering APs when calculating the interference index, the interfering-ap-weight
parameter has been introduced in the rf-arm-profile command. Before this enhancement was introduced,
the value of the interfering AP (uncontrollable AP) was similar to the valid AP (controllable AP).
Configuring ARM Profiles
ARM profile settings are divided into two categories: Basic and Advanced. The Basic ARM settings include
ARM scanning checkbox and general configuration parameters such as channel and power assignments and
minimum and maximum allowed EIRP values. Most network environments do not require any changes to the
advanced ARM configuration settings. If, however, your network supports a large amount of VoIP or Video
traffic, or if you have unusually high security requirements you may want to manually adjust the basic ARM
thresholds.
Default Profiles
ArubaOS 6.4.4.0 and later releases include 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.
Creating and Configuring an ARM Profile
There are two ways to create a new ARM profile. You can create an entirely new profile with all default settings
using the WebUI or CLIinterfaces, or you can make a copy of an existing profile using the CLI interface.
In the WebUI
To create a new ARM profile with via the WebUI:
1. Select Configuration > Advanced Services > All Profiles. The All Profile Management window opens.
2. Select RF Management to expand the RF Management section.