Reference Guide

radio drops below a defined power threshold, one or more Smart RF-managed radios can increase their
power to compensate for the coverage loss. Neighbor recovery is enabled by default and requires a
minimum of four APs to function.
Figure 4: Neighbor Recovery
Note
A Smart RF managed radio will only change power if a power dierence of +/-3 is necessary.
The power adjustment can also be >3. For example, if a radio is operating at 10 and the Smart
RF algorithm determines that the power needs to be 17, the Smart RF radio will increase
power to 17 immediately. However, if the power must decrease, it will always decrease in
increments of 3.
Coverage Hole Recovery
Smart RF provides mitigation for coverage issues for wireless clients located at the fringes of the
network or in poor coverage areas. When a coverage hole is detected, Smart RF first determines the
power compensation needed based on the signal to noise ratio (SNR) for a client as seen by the Smart
RF-managed radio. If a client’s signal to noise value is above the threshold, the transmit power is
increased until the SNR falls below the threshold. Coverage Hole Recovery is enabled by default.
Coverage Hole Recovery
About Smart RF in Extreme Campus Controller
12 Extreme Campus Controller Smart RF Reference Guide for version 5.46.02