789ca892_Instructions__Explanation
[Command] /PING [Example] /PING Username [Explanation] 
Tells you how fast your network connection is. The username is optional and will tell you how fast the connection between you and another player is. If you just enter "/PING" it will tell you the time (in milliseconds) for a message to pass to the server and back. A good value is 500ms, values over 1000ms are bad.
Instructions
Explanation