What problem does the ping command test between two computers?

#The ping command tests the connection problem between two computers.

Ping is used to determine whether the local host can successfully exchange (send and receive) data packets with another host. Based on the returned information, it can be inferred whether the TCP/IP parameters are set correctly, and Whether the operation is normal, whether the network is smooth, etc.

The Ping command can perform the following operations:

① By sending ICMP (Internet Control Message Protocol) echo packets to the computer and listening for echo reply packets to verify the connection to one or more remote computers.

②Wait up to one second for each data packet sent.

③Print the number of transmitted and received data packets.

It should be noted that successful Ping does not necessarily mean that the TCP/IP configuration is correct. It may be necessary to perform a large number of data packet exchanges between the local host and the remote host to ensure the correctness of the TCP/IP configuration. . If the ping is successful but the network is still unavailable, the problem is likely to lie in the software configuration of the network system. A successful ping only ensures that there is a connected physical path between the current host and the destination host.

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