I am a big believer in passive monitoring (see libreqos). Measuring packet loss is a PITA because it is the absence of information. While you can infer it from

I am a big believer in passive monitoring (see libreqos). Measuring packet loss is a PITA because it is the absence of information. While you can infer it from protocols like TCP, QUIC and VOIP protocols make loss only visible to the end-points. A request response protocol like ping is a lousy metric for measuring voice quality. See irtt. Sending a VOIP-like flow in both directions, one small packet every 20ms, would be vastly better than ping, except there is an energy cost to it.