Extreme Networks Altitude 4700 Series Product Reference Manual page 24

Software version 4.1
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Introduction
The following is a network topology illustrating how a sensor functions within an Access Point
supported wireless network:
A radio in sensor mode supports the following basic features:
NOTE
The functions described below are conducted on the WIPS server side, not on the Access Point.
Wireless Termination—The Access Point attempts to force an unwanted (or unauthorized) connection
to disconnect.
Wireless Sniffing—All received frames are reported to the WIPS server. This feature provides the
WIPS server with visibility into the activity on the wireless network. The WIPS server processes the
received traffic and provides the IT administrator with useful information about the 802.11 RF
activities in the enterprise.
Spectrum Analysis—The data needed to provide the current RF Spectrum is provided to the WIPS
server. The Access Point does not display the data, but it is available to the WIPS server. Spectrum
analysis can operate only when there are no WLAN radios configured. The WIPS daemon and server
are responsible for limiting operation only when there is no radio in WLAN mode. When a
configuration change is made at the AP, the Spectrum Analysis operation stops.
Live View—The WIPS application provides a live view of the sensors, APs and MUs operating in a
WLAN. Live view support exists throughout the WIPS application, wherever a device icon appears
in an information panel or navigation tree. Access Live View by right-clicking on the device, which
automatically limits the data to the specific device your choose.
Sensor radios can be tuned to channels in both the 2.4GHz and 5.0 GHz band. The channels in use by a
given radio are defined by the WIPS application. There is no need to explicitly set a band for a sensor
radio. Instead, select either default values or specific channels. Specific channels can be in either band.
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Altitude 4700 Series Access Point Product Reference Guide

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