The command ping 103.21.244.0 -n 50 tests the network connection and latency status on Windows operating systems by sending a total of 50 ICMP ECHO requests to the specified IP address. This command is particularly used in detecting network problems, analyzing packet loss, and measuring connection stability.

Command Description:

ping 103.21.244.0 -n 50

103.21.244.0: The target IP address to be tested.
-n 50: Specifies that 50 ping packets will be sent. The default value is 4, which can be increased with this option.

What is it used for?

Checking if a specific IP is accessible
Measuring latency on the network
Testing for packet loss
Understanding whether there is instability in the internet or server connection

Output Example:

Pinging 103.21.244.0 with 32 bytes of data:
Reply from 103.21.244.0: bytes=32 time=48ms TTL=50
Reply from 103.21.244.0: bytes=32 time=50ms TTL=50
...
Ping statistics for 103.21.244.0:
    Packets: Sent = 50, Received = 50, Lost = 0 (0% loss),
Approximate round trip times in milli-seconds:
    Minimum = 48ms, Maximum = 67ms, Average = 52ms

Important Information:

The Lost line indicates whether there is packet loss in the connection. 0 is ideal.
The Average part shows the average response time. Lower is better.

Note:

IP addresses ending with .0, such as 103.21.244.0, usually represent a network block (e.g., CIDR block: 103.21.244.0/24). Therefore, some systems may not respond to this address. If it is unreachable, a response like the following may be received:

Destination host unreachable.
Request timed out.

In this case, instead of an IP representing the network to be tested, an active server IP should be preferred (e.g., 103.21.244.1, 103.21.244.10).