TCP/IP Internet (Internet) Communication Protocol

Communication Protocol for TCP/IP Internet (Internet) I. TCP/IP is used for Internet (Internet) communication Protocol 1. Computer Communication Protocol is a description of the rules that computers must comply with in order to communicate with each other. 2. What is TCP/IP? A. TCP/IP is a communication protocol for computers connected to the Internet to communicate. B. TCP/IP refers to the Transmission Control Protocol/Internet Protocol (Transmission Control Protocol/Internet Protocol ). C. TCP/IP defines how electronic devices (such as computers) connect to the Internet and how data is transmitted between them. 3. In TCP/IP, a series of protocols are included in TCP/IP for data communication: · TCP (Transmission Control Protocol)-communication between applications · UDP (user data packet Protocol) -Simple communications between applications-IP (Internet Protocol)-communications between computers-ICMP (Internet message control protocol)-for errors and statuses-DHCP (Dynamic Host Configuration Protocol) -For dynamic addressing 4. TCP uses a fixed connection TCP for communications between applications. When an application wants to communicate with another application over TCP, it sends a Communication Request. This request must be sent to an exact address. After both parties "Shake hands", TCP will establish a full-duplex communication between the two applications. Full Duplex: communication allows data to be transmitted simultaneously in two directions. It is equivalent to the combination of two ticket communication modes in terms of capabilities. This full-duplex communication will occupy the communication line between two computers until it is closed by either or both parties. UDP is similar to TCP, but it is simpler, and the reliability is lower than TCP. 5. IP addresses are non-connected IP addresses used for communication between computers. An IP address is a connectionless communication protocol. It does not occupy the communication line between two computers that are communicating. In this way, the IP address reduces the need for network lines. Each line can meet the communication needs of many different computers at the same time. Messages (or other data) are divided into small independent packages and transmitted between computers over the Internet. The IP address is responsible for routing each packet to its destination. 6. When an IP packet is sent from a computer, the IP router will arrive at an IP router. The IP router is responsible for routing the package to its destination, either directly or through other routers. In the same communication, the path of a package may be different from that of other packages. The router is responsible for correctly addressing traffic, network errors, or other parameters. 7. TCP/IP means that TCP/IP and IP work together. TCP is responsible for communication between application software (such as your browser) and network software. IP addresses are responsible for communication between computers. TCP is responsible for dividing and loading data into IP packets, and then re-combining them when they arrive. The IP address is responsible for sending the package to the recipient.