Auto Coverage Hole Detection
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Description—Auto CHD should be enabled.
The controller uses the quality of client signal levels reported by the APs to determine if the power level of that AP needs to be increased. Coverage Hole Detection (CHD) is controller independent, so the RF group leader is not involved in those calculations. The controller knows how many clients are associated with a particular AP and what are the signal-to-noise ratio (SNR) values for each client.
If a client SNR drops below the configured threshold value on the controller, the AP increases its power level to try to compensate for the client. The SNR threshold is based on the transmit power of the AP and the coverage profile settings on the controller.
For instructions on how to configure auto CHD, see the Cisco Mobility Express User Guide.
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Status: -
Selected—CHD enabled
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Unselected— None or one enabled
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CLI Option—Enable auto CHD by entering this command:
(Cisco Controller) >config advanced 802.11{a|b} coverage enable