Air-Quality Index
As APs and controllers work together to generate a list of interference reports, the list can grow quite long. For example, the controller from Figure 19-4 has a list of 263 reports from the 2.4 GHz 802.11b/g/n band alone. To get a feel for the RF conditions on any one channel and AP, you would have to read through the list of reports manually and guess the cumulative effect that various interferers were having.
Cisco WLCs can do a better analysis by calculating an air-quality index (AQI) for each AP and its channels. The AQI indicates WiFi health within an AP’s cell, as indicated by a scale from 0 (unusable) to 100 (perfect). ...
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