The ping command failed to test the port. Ping only tests the network connection and the sending and receiving of data packets. Format: ping IP address or host name [-t] [-a] [-n count] [-l size]

Parameter meaning:

-t continuously send data to the target host;

-a displays the network address of the target host in IP address format;

-n count specifies how many times to Ping, and the specific number is specified by count;

-l size specifies the size of the packet sent to the target host. Example: ping192.168.0.1-t continuous test192.168.0.1,press ctrl+c to stop using telnet IP address or host name port, and use telnet 6544.