TCP/IP Reference Model in Networking
TCP/IP Reference Model or the Transmission Control Protocol and Internet Protocol is one of the conceptual models used in networking and computing systems across the globe. It is also known as the Department of Defense (DoD) Model because it was funded by the United States Department of Defense during the cold war when the USA was under the threat of a nuclear war with the fellow superpower USSR. To know more about the TCP/IP Reference Model keep reading this article till the end.
The war seemed inevitable and some measures had to be taken to keep the defense strong. The motive behind models like this was to create a common network between different branches of the military in case the war breaks out so they can coordinate and defend the country better without having to deal with an unnecessary communication gap that shouldn’t be present inside and government.
One of the main functions of this model is to Interconnect different network devices on a network so they may work together to bridge the communication gap. It is also used as the communication protocols for Intranet and Extranet. Compared to its’ alternative OSI model which consist of 7 layers, TCP/IP model has only 4:
Application Layer – Including the protocols for routing and host configuration, the application layer contains the protocols that are used by the applications. One of the most familiar and known protocols of these are Hypertext Transfer Protocol (HTTP), File Transfer Protocol (FTP) and Simple Mail Transfer Protocol (SMTP). This layer alone handles the work done by three different layers in the OSI model; Session layer, presentation layer, and application layer.
Transport – Establishment of data channels that allow the applications to share and receive data with each other is done by the transport layer. It is responsible for end-to-end communication. Along with TCP, User Datagram Protocol (UDP) is also used in this layer.
Read more TCP/IP Reference Model in Networking
The war seemed inevitable and some measures had to be taken to keep the defense strong. The motive behind models like this was to create a common network between different branches of the military in case the war breaks out so they can coordinate and defend the country better without having to deal with an unnecessary communication gap that shouldn’t be present inside and government.
One of the main functions of this model is to Interconnect different network devices on a network so they may work together to bridge the communication gap. It is also used as the communication protocols for Intranet and Extranet. Compared to its’ alternative OSI model which consist of 7 layers, TCP/IP model has only 4:
Application Layer – Including the protocols for routing and host configuration, the application layer contains the protocols that are used by the applications. One of the most familiar and known protocols of these are Hypertext Transfer Protocol (HTTP), File Transfer Protocol (FTP) and Simple Mail Transfer Protocol (SMTP). This layer alone handles the work done by three different layers in the OSI model; Session layer, presentation layer, and application layer.
Transport – Establishment of data channels that allow the applications to share and receive data with each other is done by the transport layer. It is responsible for end-to-end communication. Along with TCP, User Datagram Protocol (UDP) is also used in this layer.
Read more TCP/IP Reference Model in Networking
No comments