Use the radio-actions command to initiate a background scan or an auto channel selection (ACS). The radio-actions command is accessible from the ap context of the CLI.
auto-ch | Initiates an ACS channel scan for the specified radios and APs. |
bg-scan | Initiates a background scan for the specified radios and APs. |
radio 1 | radio 2 | Specifies the AP radio to be scanned. Scan each radio separately. |
ap_serial | Identifies one or more APs to be scanned by serial number. |
Background scan extends the usefulness of the Automatic Channel Scan (ACS) feature. It is a reporting tool that helps you verify and understand channel assignments. Where ACS is a disruptive and persistent channel assignment, the on-demand background scan runs without disrupting service. To verify channel assignments and review channel details without having to run a full ACS, run an on-demand background scan.
The background scan does not change channel assignments, it simply provides details about the current assignments. Run background scan on each radio separately. To change channel assignments, you must run ACS.
The following example runs a background scan on radio 1, for two APs:
EWC.extremenetworks.com:ap# radio-actions bg-scan radio1 2111111111113825 111111111113935