TCP IP Model | Computer Science
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The TCP/IP model is a set of communication protocols used for the internet, named after its primary protocols: Transmission Control Protocol (TCP) and Internet Protocol (IP). It consists of five layers, with the application layer at the top, responsible for data coding, and the transport layer managing packet transportation. Unlike the OSI model, which has seven layers and supports both connectionless and connection-oriented communication, the TCP/IP model supports only connectionless communication.
TCP IP Model | Computer Science
- 2. The TCP/IP Model is the set of communications protocols used for the internet and other similar networks It is named from two of the most important protocols in it: The Transmission Control Protocol (TCP) and The Internet Protocol (IP), which were the first two networking protocols defined in this standard The most well known network that adopted TCP/IP is The Internet- the biggest WAN in the world
- 4. Application Layer This is the topmost layer of the TCP/IP suite. This is responsible for coding of the packet data Transport Layer This layer monitors end to end path selections of the packets. It also provides service to the application layer Internet Layer This layer is responsible for sending packets through different networks Network Layer It is the closest layer to the network hardware. It provides service to Internet Layer
- 5. Fig2: detailed architecture of TCP/IP Model
- 6. Connections are established using a three- way handshake Data is divided into packets by the operating system Packets are numbered, and received packets are acknowledged Connection are explicitly closed or may abnormally terminate
- 7. Fig3: 3-way handshake Fig4: acknowledgement
- 9. The OSI model has 7 layers while the TCP/IP model has 5 layers Both have network, transport, and application layers, but the other layers are different OSI model supports both connectionless and connection- oriented communication TCP/IP supports only connectionless communication
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