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Monitoring Individual APs
RF Pollution FAQ
ZoneDirector 9.8 User Guide, 800-70599-001 Rev B
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can range from 0 to infinity, although in most normal environments the RF
Pollution index will average between 10 and 100. Higher values are indicative of
a noisier environment.
• What is RF Pollution measuring?
It is measuring the level of RF contention and interference experienced by the
AP. It distills several low-level mac and phy-level error metrics into a single
parameter.
• How is RF Pollution different than noise?
Noise may or may not have an impact on performance. RF Pollution is a measure
of noise or other interference that is in fact impacting performance.
• How do customers use this new concept to understand and manage their WiFi
networks?
RF Pollution is an informational metric. BeamFlex and ChannelFly use a variant
of this metric and other throughput-based metrics internally to optimize the RF
so that you don’t have to.
• Why is Ruckus using this new term vs. the existing measurements such as PHY
errors, CRC errors, etc.
PHY Errors and CRC errors can be very misleading metrics because there is no
standard way for the chipset to report them. Different chipsets can report these
errors in different ways and certain types of noise can even mask these errors
entirely. RF Pollution is a more stable metric that will never produce misleading
results.