Concept Guide

49 | Instant User Interface Dell Networking W-Series Instant 6.5.1.0-4.3.1.0 | User Guide
The spectrum link displays the following:
l Device list—The device list display consists of a device summary table and channel information for active
non Wi-Fi devices currently seen by a spectrum monitor or a hybrid W-IAP radio.
l Channel Utilization and Monitoring—This chart provides an overview of channel quality across the
spectrum. It shows channel utilization information such as channel quality, availability, and utilization
metrics as seen by a spectrum monitor for the 2.4 GHz and 5 GHz radio bands. The first bar for each
channel represents the percentage of airtime used by non-Wi-Fi interference and Wi-Fi devices. The second
bar indicates the channel quality. A higher percentage value indicates better quality.
l Channel Details—When you move your mouse over a channel, the channel details or the summary of the
2.4 GHz and 5 GHz channels as detected by a spectrum monitor are displayed. You can view the aggregate
data for each channel seen by the spectrum monitor radio, including the maximum W-IAP power,
interference, and the Signal-to-Noise-plus-Interference Ratio (SNIR). Spectrum monitors display spectrum
analysis data seen on all channels in the selected band, and hybrid W-IAPs display data from the single
channel that they are monitoring.
For more information on spectrum monitoring, see Spectrum Monitor on page 341.
Alerts
Alerts are generated when a user encounters problems while accessing or connecting to a network. The alerts
that are generated can be categorized as follows:
l 802.11-related association and authentication failure alerts
l 802.1X-related mode and key mismatch, server, and client time-out failure alerts
l IP-address-related failures—Static IP address or DHCP-related alerts.
The following figure shows the contents of details displayed on clicking the Alerts link:
Figure 17 Alerts Link
The Alerts link displays the following types of alerts:
l Client Alerts
l Active Faults
l Fault History