What do you mean by the term ICMP

Question

What do you mean by the term ICMP?

Answer 1

ICMP is the Internet Control Message Protocol, a network layer protocol of the TCP-IP suite employed by hosts and gateways to send the notification of datagram problems back to the sender. It employs the echo test or reply to test whether the destination is reachable and responding. It handles both controls as well as error messages.