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Aruba Instant 6.4.0.2-4.1 | User Guide Spectrum Monitor | 313
Chapter 26
Spectrum Monitor
This chapter provides the following information:
l Understanding Spectrum Data on page 313
l Configuring Spectrum Monitors and Hybrid IAPs on page 318
Understanding Spectrum Data
Wireless networks operate in environments with electrical and radio frequency devices that can interfere with
network communications. Microwave ovens, cordless phones, and even adjacent Wi-Fi networks are all potential
sources of continuous or intermittent interference. The spectrum monitor software modules on IAPs that support this
feature are able to examine the radio frequency (RF) environment in which the Wi-Fi network is operating, identify
interference and classify its sources. An analysis of the results can then be used to quickly isolate issues with
packet transmission, channel quality, and traffic congestion caused by contention with other devices operating in the
same band or channel.
Spectrum monitors (SMs) are IAP radios that gather spectrum data but do not service clients. Each SM scans and
analyzes the spectrum band used by the SM's radio (2.4 GHz or 5 GHz). An AP radio in hybrid AP mode continues to
serve clients as an access point while it analyzes spectrum analysis data for the channel the radio uses to serve
clients. You can record data for both types of spectrum monitor devices. However, the recorded spectrum is not
reported to the Virtual Controller. A spectrum alert is sent to the VC when a non Wi-Fi interference device is
detected.
The spectrum monitor is supported on IAP-103, IAP-104/105, IAP-134/135, IAP-114/115, and IAP-224/225 radios.
The spectrum data is collected by each IAP spectrum monitor and hybrid AP. The spectrum data is not reported to
the VC. The Spectrum link is visible in the UI (Access Point view) only if you have enabled the spectrum monitoring
feature. You can view the following spectrum data in the UI:
l Device List
l Non Wi-Fi Interferers
l Channel Metrics
l Channel Details
l Spectrum Alerts
Device List
The device list consists of a device summary table and channel information for active non Wi-Fi devices currently
seen by a spectrum monitor or hybrid AP radio.
To view the device list, click Spectrum in the dashboard. The following figure shows an example of the device list
details.