Brocade Mobility RFS Controller System Reference Guide (Supporting software release 5.5.0.0 and later) User Manual
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Brocade Mobility RFS Controller System Reference Guide
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20. Set the following Coverage Hole Recovery for 2.4 GHz and 5.0 GHz parameters:
Select OK to update the Smart RF coverage hole recovery settings for this policy. Select Reset to
revert to the last saved configuration.
Smart RF Configuration and Deployment Considerations
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.
Brocade recommends you 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 a channels specified
in the Smart RF policy
•
If no SMART RF policy is mapped, the radio selects a random channel
If the radio is a dedicated sensor, it stops termination on that channel if a neighboring Access
Points detects radar. The Access Point attempts to come back to its original channel (statically
configured or selected by Smart RF) after the channel evacuation period has expired.
Change this behavior using a no dfs-rehome command from the controller or service platform
CLI. This keeps the radio on the newly selected channel and prevents the radio from coming back
to the original channel, even after the channel evacuation period.
Client Threshold
Use the spinner to set a client threshold for the Smart RF policy between 1 - 255. This is the
minimum number of clients a radio should have associated in order for coverage hole recovery to
trigger. The default setting is 1.
SNR Threshold
Use the spinner control to set a signal to noise threshold (between 1 - 75 dB). This is the signal to
noise threshold for an associated client as seen by its associated Access Point radio. When
exceeded, the radio increases its transmit power in order to increase coverage for the associated
client. The default value is 20 dB.
Coverage Interval
Define the interval coverage hole recovery should be initiated after a coverage hole is detected. The
default is 10 seconds for both the 2.4 and 5.0 GHz radios.
Interval
Define the interval coverage hole recovery should be conducted before a coverage hole is detected.
The default is 30 seconds for both the 2.4 and 5.0 GHz radios.