InJuniper Networks Mist AI Wireless, controlling client connection quality is a critical part of maintaining high Service Level Expectations (SLEs). One of the most effective ways to ensure good user experience is by enforcing aminimum acceptable RSSI (Received Signal Strength Indication)threshold for client devices. This functionality is implemented usingwireless traffic filteringat the WLAN level.

Wireless traffic filtering allows administrators to defineminimum and maximum RSSI thresholdsthat determine whether a client is permitted to associate or remain connected to an SSID. If a client’s RSSI falls below the configured minimum threshold, the AP can deny association requests or deauthenticate the client. This prevents low-signal or “sticky” clients from connecting at poor signal levels, which would otherwise result in excessive retries, low data rates, increased airtime consumption, and degraded performance for all users.

Mist applies these controls intelligently and surfaces their impact through AI-driven analytics. When low-RSSI clients are filtered, Mist can correlate improvements in throughput, latency, and roaming behavior directly to RF health and client quality metrics. This aligns with Mist best practices, which emphasize proactive client quality enforcement rather than reactive troubleshooting.

The incorrect options are explained as follows:

WLAN forwardingdetermines how traffic is bridged, tunneled, or NATed and has no impact on RSSI enforcement.

Geofencingis used for location-based services and RTLS use cases, not RF signal quality control.

WLAN rate limitrestricts bandwidth usage per client or SSID but does not evaluate or enforce signal strength requirements.

Therefore, the correct feature required to set an acceptable minimum RSSI for client devices iswireless traffic filtering, which directly controls association behavior based on signal quality and helps maintain optimal wireless performance.