ICMP stands for Internet Control Message Protocol. Its main purpose is to inform people over the internet that their request was either received in error or there was some sort of error in trying to follow through with that request. There are several different types of ICMP protocols. One of these types of ICMP protocols is the network layer protocol. This protocol transmits a network packet to another place or network.
There are other protocols or layers. These include the physical layer which is the first layer. Data link layer is the second layer. The third layer is the network layer. The transport layer is the fourth layer. The next three layers include session layer, presentation layer and the application layer. The network layer protocol to used to control and message services.
Network layer protocol-the internet control message protocol (icmp) is one of the core protocols of the internet protocol suite. it is chiefly used by networked computers operating systems to send error messagesindicating, for instance, that a requested service is not available or that a host or router could not be reached.icmp [1] relies on ip to perform its tasks, and it is an integral part of ip. it differs in purpose from transport protocols such as tcp and udp in that it is typically not used to send and receive data between end systems. it is usually not used directly by user network applications, with some notable exceptions being the ping tool and traceroute.icmp for internet protocol version 4 (ipv4) is also known as icmpv4. ipv6 has a similar protocol, icmpv6
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