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michealsean

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Hello, I'm Micheal! Recently, I have been extensively researching the TCP / IP protocol used in today's network technologies. I would like to give brief information about this subject. What is the TCP / IP Protocol? TCP stands for Transport Control Protocol and IP stands for Internet Protocol. TCP / IP stands for Transmission Control Protocol / Internet Protocol, TCP / IP is a structure containing basic protocols of the internet. Local Area Network (LAN) and Wide Area Network (WAN) protocols are available. It is a group of protocols that make up the Internet and other networks. Transmission Control Protocol (TCP) and Internet Protocol (IP). These are available in other protocols in this field; Internet Control Message Protocol (ICMP) and User Datagram Protocol (UDP) are also part of this group. TCP / IP itself is not a specific technology, it is only a grouping of selected protocols. Combining them should make it the standard for communication in networks. There are 500 protocols used on the internet. How does TCP / IP work? Protocols of the TCP / IP model have a great advantage. The protocol structure is divided into 4 as Application Layer, Transport Layer, Network Access Layer, and Physical Layer. They work independently of hardware and basic software. Regardless of the operating system used and the device used for networking, protocols are so standardized that they operate in any context. OSI model consists of 7 layers. The connection between the two devices is stuck. For example, thanks to the IP address (192.1681.1) and the Internet protocol, the data packet is sent to the correct recipient. TCP has the task of establishing a connection between two relevant devices and allowing and protecting data transfer. If the transport of data packets is broken, the protocol will attempt a new transmission. TCP / IP model Since the term TCP / IP represents only the common name used to denote the most important protocols of the Internet, we can use this term in other situations. There is also a reference model for TCP / IP. Like the ISO / OSI model, the system aims to represent all aspects of communication in networks. The TCP / IP model consists of four levels, while the ISO / OSI model has seven levels. The application consists of a presentation, session, transport, network, data transmission, physical layer. Different tasks and therefore different protocols are assigned to the various levels of the TCP / IP model. Let's examine these models Network access level: Controls the connection speed of the Internet. Although this level is foreseen in the reference model, no specific protocol has been defined. Ethernet (cable) and IEEE 802.11 (radio) are mainly used in the application. The network access level allows different subnets to connect and, for example, connects the home Wi-Fi to the Internet via the router. Network layer: Internet Protocol works on this layer, which ensures that the transferred data reach the correct destination. Data packets are carried over the network via IP address. It makes sending and forwarding from one network to another. Transmission level: In the reference model, the transmission is entrusted to TCP. The protocol allows for end-to-end communication. It is responsible for the connection between the two devices. In addition to TCP, UDP is also assigned to this level. Application-level: Communication of the programs over the network is regulated at the highest level. For example, the HTTP and FTP protocols are decisive here. However, email communication (with POP or SMTP protocols) also works at this level. TCP / IP forms the basis of the Internet. It is older in the ISO / OSI model. The development of the old system Arpanet is connected. Then this was the internet. Now it has merged with the ISO / OSI model. TCP / IP is used in parallel. It has small components. Therefore, ISO / OSI model levels can be assigned to TCP / IP levels.

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