User's Manual

If you are recording spectrum analysis data or playing back a spectrum analysis recording using a Mac client, do
not minimize the browser window while the recording is in progress, as that may cause the Adobe Flash player
to pause.
Loading a Spectrum View
Saved spectrum view preferences may not be backwards compatible with the spectrum analysis dashboard in
earlier versions of ArubaOS. If you downgrade to an earlier version of ArubaOS and your client is unable to load
a saved spectrum view in the spectrum dashboard, access the CLI in enable mode and issue the command ap
spectrum clear-webui-view-settings to delete the saved spectrum views and display default view settings
in the spectrum dashboard.
Troubleshooting Issues with Adobe Flash Player 10.1 or Later
Removing focus from the browser window displaying the spectrum analysis dashboard may cause Adobe Flash
10.1 or later to stop updating the spectrum charts to reduce CPU usage. When you restore focus to the
spectrum analysis dashboard, you may see the spectrum charts update rapidly as the display catches up.
Recorded data may be inaccurate if you navigate away from the spectrum window during a recording. Flash
10.0 does not have this issue.
Understanding Spectrum Analysis Syslog Messages
The spectrum analysis feature can send four different types of syslog messages: wifi add, wifi delete, non-wifi
add, and non-wifi delete. All messages are in the wireless category at the syslog severity level NOTICE.
The four syslog message types appear in the following formats:
l AM: Spectrum: new wifi device found = [addr:%s] SSID = [ssid:%s] BSSID [bssid_str:%s] DEVICE ID [did:%d]
l AM: Spectrum: deleting wifi device = [addr:%s] SSID = [ssid:%s] BSSID [bssid_str:%s] DEVICE ID [did:%d]
l AM: Spectrum: new non-wifi device found = DEVICE ID [did:%u] Type [dytpe:%s] Signal [sig:%u] Freq
[freq:%u]KHz Bandwidth [bw:%u]KHz
l AM: Spectrum: deleting non-wifi device = DEVICE ID [did:%d] Type [dtype:%s]
Playing a Recording in the RFPlayback Tool
The Dell Networking W-RFPlayback tool is periodically updated to support improvements to the ArubaOS
Spectrum Analysis feature. The RFPlayback tool can play spectrum recordings created in the same version of
ArubaOS or earlier releases. If the RFPlayback tool cannot load a newer recording, you may need to download a
more recent version of the tool from the Dell website.
Dell Networking W-Series ArubaOS 6.4.x | User Guide Spectrum Analysis | 746