What does the Ping-Pong mean in computer ?

Communication between network devices allowing each computer to know if the opposite end is still present and available. In a ping pong communication, the ping is the transmission of the packet to the opposite computer and the pong is the response from the other computer.

计算机设备在网络通讯过程中允许每一台电脑设备能够知道与自己通信的设备是否在线、网络是否可用。在ping-pong通信中，这个ping是将本台计算机要发送的数据包发送到对面的计算机，而pong就是对面的计算机对你这一发送的数据动作事件做出的一个响应。所谓的ping-pong通讯，就类似于打乒乓球，一方发球打过去，对方就会把球打回来做出回应，如此的来来回回就表示事件还在进行中。