Internet Protocol, abbreviated as "IP", assigns an address to each user, just as each mobile phone user is identified by a number. IP protocol is the network layer protocol in the TCP/IP system, which completes the functions of routing addressing and message delivery.
Internet Protocol may be abbreviated as "IP".
Internet Protocol (IP for short, full name Internet Protocol) is a third-layer network layer protocol among communication protocols and completes the functions of routing addressing and message delivery.
The purpose of designing IP is to improve the scalability of the network: first, to solve Internet problems and realize the interconnection of large-scale, heterogeneous networks; second, to separate the coupling relationship between top-level network applications and underlying network technologies , in order to facilitate the independent development of the two. According to the end-to-end design principle, IP only provides a connectionless, unreliable, best-effort packet transmission service to the host.
IP is the core of the entire TCP/IP protocol suite and the foundation of the Internet. IP is located in the network layer of the TCP/IP model (equivalent to the network layer of the OSI model). The upper layer can carry information of various protocols in the transport layer, such as TCP, UDP, etc.; the lower layer can put IP information packets into the link layer. , transmitted through various technologies such as Ethernet and Token Ring networks.
In order to adapt to heterogeneous networks, IP emphasizes adaptability, simplicity and operability, and makes certain sacrifices in reliability. IP does not guarantee the delivery time and reliability of packets. The transmitted packets may be lost, duplicated, delayed or out of order.
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