An engineer has been noticing the power settings on several of the office APs change from day to
day ever since two more APs were installed. After logging into the WLC, the engineer verifies that
the power levels on 4 of the 802.11n radios are fluctuating up and down. What is the reason for
this?
A.
The controller has the APs in H-REAP mode and are on a Layer 2 connection instead of Layer
3.
B.
The RRM has revealed a bad survey and is attempting to power down some of the radios to
make up for it.
C.
The WLC has created temporary coverage holes while stepping through power levels for some
of the APs.
D.
Several APs have high levels of overlapping coverage in the same area and the WLC is using
RRM to correct the cell sizes AP coverage.
overlap
Radio Resource Management (RRM) software embedded in the Cisco Wireless LAN Controller acts as a built-in RF engineer to consistently provide real-time RF management of your wireless network. RRM enables Cisco WLCs to continually monitor their associated lightweight access points for the following information:
Traffic load—The total bandwidth used for transmitting and receiving traffic. It enables wireless LAN managers to track and plan network growth ahead of client demand.
Interference—The amount of traffic coming from other 802.11 sources.
Noise—The amount of non-802.11 traffic that is interfering with the currently assigned channel.
Coverage—The received signal strength (RSSI) and signal-to-noise ratio (SNR) for all connected clients.
Other—The number of nearby access points.