Brocade Mobility RFS Controller CLI Reference Guide (Supporting software release 5.5.0.0 and later) - Manual (Page 1133)

Brocade Mobility RFS Controller CLI Reference Guide 1125
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Chapter
20
SMART-RF-POLICY
This chapter summarizes Self Monitoring at Run Time RF (Smart RF) management policy
commands in the CLI command structure.
A Smart RF management policy defines operating and recovery parameters that can be assigned to
groups of access points. A Smart RF policy is designed to scan the network to identify the best
channel and transmit power for each access point radio.
A Smart RF policy reduces deployment costs by scanning the RF environment to determine the best
channel and transmit power configuration for each managed radio. Smart RF policies when applied
to specific RF Domains, apply site specific deployment configurations and self-healing values to
groups of devices within pre-defined physical RF coverage areas.
Smart RF centralizes the decision process and makes intelligent RF configuration decisions using
information obtained from the RF environment. Smart RF helps reduce ongoing management and
maintenance costs through the periodic re-calibration of the network. Re-calibration can be
initiated manually or can be automatically scheduled to ensure the RF configuration is optimized to
factor for RF environment changes (such as new sources of interference, or neighboring access
points).
Smart RF also provides self-healing functions by monitoring the network in real-time, and provides
automatic mitigation from potentially problematic events such as radio interference, coverage
holes and radio failures. Smart RF employs self-healing to enable a WLAN to better maintain
wireless client performance and site coverage during dynamic RF environment changes, which
typically require manual re-configuration to resolve.
Smart RF is supported on any RF Domain manager. In standalone environments, an individual
wireless controller manages the calibration and monitoring phases. In clustered environments, a
single wireless controller is elected a Smart RF master and the remaining cluster members operate
as Smart RF clients. In cluster operation, the Smart RF master co-ordinates the calibration and
configuration and during the monitoring phase receives information from the Smart RF clients.
Before defining a Smart RF policy, refer to the following deployment guidelines to ensure the
configuration is optimally effective:
• The Smart RF calibration process impacts associated users and should not be run during
business or production hours. The calibration process should be performed during scheduled
maintenance intervals or non-business hours.
• For Smart RF to provide effective recovery, RF planning must be performed to ensure
overlapping coverage exists at the deployment site. Smart RF can only provide recovery when
access points are deployed appropriately. Smart RF is not a solution, it's a temporary measure.
Administrators need to determine the root cause of RF deterioration and fix it. Smart RF
history/events can assist.
Keep in mind that if a Smart RF managed radio is operating in WLAN mode on a channel requiring
DFS, it will switch channels if radar is detected.
• If Smart RF is enabled, the radio picks a channel defined in the Smart RF policy.
• If Smart RF is disabled, but a Smart RF policy is mapped, the radio picks channels specified in
the Smart RF policy