How to divide the structure of typical ip telecom network

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The structure of typical IP telecom network can be divided into backbone network, metropolitan area network and access network; IP is the abbreviation of Internet Protocol and the network layer protocol in TCP/IP system; IP is the core of the whole TCP/IP protocol family and the foundation of the Internet.

The structure of typical IP telecommunication network can be divided into backbone network, metropolitan area network and access network.

IP is the abbreviation of Internet Protocol (Internet interconnection protocol) and the network layer protocol in TCP/IP system. The purpose of designing IP is to improve the scalability of the network: one is to solve the Internet problem and realize the interconnection of large-scale and heterogeneous networks; the other is to separate the coupling relationship between the top network application and the underlying network technology to facilitate the independent development of the two. According to the end-to-end design principle, IP only provides a connectionless, unreliable, best-effort Datagram transmission service for the host.

IP is not only the core of the whole TCP/IP protocol family, but also 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). It can carry the information of various protocols in the transport layer, such as TCP, UDP, etc., and the IP packets can be placed on the link layer and transmitted through various technologies such as Ethernet, token ring network and so on.

In order to adapt to heterogeneous networks, IP emphasizes adaptability, simplicity and maneuverability, and makes some sacrifices in reliability. IP does not guarantee the delivery time limit and reliability of packets, and the transmitted packets may have problems such as loss, duplication, delay or disorder.

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