Event Driven Radio Resource Management And Persistence Device Avoidance; Cleanair Access Point Deployment Recommendations - Cisco Mesh Access Points Deployment Manual

CleanAir
For more than one WLC (possible in outdoor deployments), merging occurs on the MSE. MSE does more
advanced merging and extracts location and historical information for interferers. No Location is performed
on controller merged interferers. Location is done on the MSE.
Figure 40: Pseudo MAC Merging in Outdoors
After PMAC signature merging, you can identify which AP can hear the device, and which AP is the center
of a cluster. In the figure above, the values are relevant to the band selected. The label R on AP indicates that
the AP is a RAP and the line between APs shows the mesh relationship.

Event Driven Radio Resource Management and Persistence Device Avoidance

There are two key mitigation features that are present with CleanAir. Both rely directly on information that
can only be gathered by CleanAir. Event Driven Radio Resource Management (EDRRM) and Persistence
Device Avoidance (PDA). For mesh networks, they work exactly the same way as for nonmesh networks in
the 2.4-GHz band.
EDRRM and PDA are only available in a Greenfield installation and configured off by default.
Note

CleanAir Access Point Deployment Recommendations

CleanAir is a passive technology that does not affect the normal operation of Wi-Fi networks. There is no
inherent difference between a CleanAir deployment and a mesh deployment.
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Site Preparation and Planning
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