Users Guide

145 | Monitoring the Network Dell Networking W-AirWave 8.2.4 | User Guide
Figure 72:ARM Events Table Illustration
The columns and values are described in Table 83.
Column Description
Time The time of the ARM event.
Trap Type The type of trap that delivered the change information. Current ARM trap types that
display in W-AirWave are:
l Power Change
l Mode Change
l Channel Change
Values that display in the following columns depend on the Trap Type.
Previous Tx Power Old value for transmit power before the Power Change event took place.
Current Tx Power New transmit power value after the change.
Previous Radio
Mode
Old value for radio mode before the Mode Change event took place.
Current Radio Mode New radio mode value after the change.
Previous Channel Old primary channel value before the Channel Change event took place.
Current Channel New primary channel value after the change.
Previous Secondary
Channel
Old secondary channel value (for 40Mhz channels on 802.11n devices) before the
Channel Change event took place.
Current Secondary
Channel
New secondary channel value after the change.
Change Reason If the noise and interference cause for the change can be determined, they will be
displayed here. Mode change reasons are not yet tracked.
Table 83: ARM Events table Columns and Values
Detected Interfering Devices Table
For Dell Networking W-Series APs running in Spectrum mode, the same non-802.11 interfering devices identified
in the Issues Summary section are classified in the Detected Interfering Devices table along with the
timestamp of its last detection, the start and end channels of the interference, the signal to noise ratio, and the
percentage of time the interference takes place (duty cycle), as illustrated in Figure 73. This table can be exported
to CSV format, and the displayed columns can be moved or hidden as needed.