Figure 46: Viewing whether Background Scanning is enabled for an AP
ChannelFly
The main difference between ChannelFly and Background Scanning is that ChannelFly
determines the optimal channel based on real-time statistical analysis of actual throughput
measurements, while Background Scanning uses channel measurement and other
techniques to estimate the impact of interference on Wi-Fi capacity based on progressive
scans of all available channels.
NOTE
If you enable ChannelFly, Background Scanning can still be used for adjusting
radio power and rogue detection while ChannelFly manages the channel assignment.
Both cannot be used at the same time for channel management.
Benefits of ChannelFly
With ChannelFly, the AP intelligently samples different channels while using them for
service. ChannelFly assesses channel capacity every 15 seconds and changes channel
when, based on historical data, a different channel is likely to offer higher capacity than
the current channel. Each AP makes channel decisions based on this historical data and
maintains an internal log of channel performance individually.
When ChannelFly changes channels, it utilizes 802.11h channel change announcements
to seamlessly change channels with no packet loss and minimal impact to performance.
The 802.11h channel change announcements affect both wireless clients and Ruckus
mesh nodes in the 2.4 GHz and/or 5 GHz bands.
Initially (in the first 30-60 minutes) there will be more frequent channel changes as
ChannelFly learns the environment. However, once an AP has learned about the
environment and which channels are most likely to offer the best throughput potential,
channel changes will occur less frequently unless a large measured drop in throughput
occurs.
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Ruckus Wireless ZoneDirector™ Release 10.0 User Guide
Configuring Security and Other Services
Self Healing
