Recently, a colleague at work (who is engaged in military communication) explained to the praporcher what ping is.
“Look, the commander of the unit comes out to the square and greets the squad: ‘Hello, comrades!’ And he replied, “Hello, Comrade Colonel!”
Ping went well.
If the system did not respond, then the ping did not pass.
And if he answered, but unclearly or not heard - it means the loss of packages.