In Juniper Networks Mist AI Wireless, Radio Resource Management (RRM) is designed to optimize RF performance automatically while minimizing client impact. With the introduction of Wi-Fi 6E and the 6 GHz band, Juniper Mist follows industry standards and client behavior to ensure efficient and reliable operation. By default, Mist RRM uses the Preferred Scanning Channels (PSCs) in the 6 GHz spectrum.
The 6 GHz band introduces a very large number of available channels, which creates challenges for client discovery, scanning efficiency, and roaming speed. To address this, the IEEE defined Preferred Scanning Channels (PSCs)—a specific subset of 6 GHz channels that access points advertise and clients prioritize during active and passive scanning. These PSCs allow clients to discover networks faster without having to scan the entire 6 GHz channel set.
Juniper Mist RRM automatically selects and operates on these PSCs by default to:
Improve client discovery and association times
Reduce unnecessary scanning overhead
Enhance roaming performance
Maintain compatibility across a wide range of Wi-Fi 6E client devices
Mist continuously evaluates RF conditions using telemetry and AI-driven analysis, but it intentionally limits default operation to PSCs to balance performance, efficiency, and client interoperability. Administrators can override defaults and customize channel plans if required, but PSCs remain the recommended baseline for most deployments.
The incorrect options are explained as follows:
Option B is incorrect because Mist RRM does not require manual primary channel selection by default.
Option C refers to 2.4 GHz non-overlapping channels, not 6 GHz.
Option D represents the full 6 GHz channel range, which is not practical for default scanning or operation due to client limitations.
Therefore, the correct answer is the preferred scanning channels (PSCs), which Juniper Mist RRM uses by default in the 6 GHz band to ensure optimal Wi-Fi 6E performance.
