A ping measures the duration between the sending of an echo request and the received response, also called round-trip delay (RTD), round-trip-time (RTT), latency or colloquially simply ping. A high ping is therefore a delayed network response. In many online games, a delayed network response has a negative effect on gameplay, and since the ping command also outputs the latency, the term "ping" is also frequently used in online games for the delays. Depending on the game, a ping of about 20-70 milliseconds (ms) is fine, but certain games can also handle higher response times.