TCP/IP and the OSI Model. The networking industry has a standard seven-layer model for network protocol architecture called the Open. This article describes the OSI and TCP/IP models and their differences. In this chapter, we will look at the layered models that are used in communication over networks. We will discuss the TCP/ip model and the OSI model to better.


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Provides logical, hardware-independent addressing so that data can pass among subnets with different physical architectures.

OSI & TCP/IP models

Provides routing to reduce traffic and support delivery across the internetwork. The term internetwork refers to an interconnected, greater network of local area networks LANssuch as what you find in a large company or on the Internet.

Relates physical addresses used at the Network Access layer to logical addresses. Provides flow-control, error-control, and acknowledgment services for the internetwork.

Serves as an interface for network applications. Provides applications for network troubleshooting, file transfer, remote control, and Internet activities. Unicodedata conversion, compression, and encryption.

  • How TCP/IP Works | The TCP/IP Protocol System | InformIT
  • OSI and TCP/IP Model Layers | OSI and TCP/IP Model Layers | Pearson IT Certification
  • TCP/IP and the OSI Model
  • OSI and TCP/IP Model Layers
  • Use of layered models

The Application Layer Osi model and tcp ip 7 Layer 7 of the OSI model is named the application layer and is responsible for a number of different things depending on the application; some of these things include resource sharing, remote file access, remote printer access, network management, and electronic messaging email.

The link layer combines the physical and data link layer functions into a single layer.


This includes frame physical network functions like modulation, line coding and bit synchronization, frame synchronization and error detection, and LLC and MAC sublayer functions. The Internet Layer The Internet layer is the next layer up from the link layer and is associated with osi model and tcp ip network layer of the OSI model.

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Difference between OSI Reference Model and TCP/IP Reference Model | Studytonight

The Open Systems Interconnection, or OSImodel is a standard reference model created by the International Organization for Standardization to describe how the different software and hardware components involved in a network communication should divide labor and interact with one another.

At the seat level, the seat is occupied before journey and vacated after the journey. So this was a simple model of the working of cab system, to explain in a simple manner how this service is implemented and used to reach from a osi model and tcp ip to destination via osi model and tcp ip.

Now coming back to the world of networking, network designers have proposed models like OSI Reference model and TCP model to simplify the concept of how a communication is carried out between two hosts or networks. The transport layer also helps in interoperability between different network devices such as a PDA and a computer.

The internet layer is meant to provide the best path to remote networks, this differentiates the different devices on a network.

What is the difference between TCP/IP model and OSI model?

If a message is to be sent from one computer to another on a remote network, it is the work of the internet layer to make sure the message gets to the intended recipient.

You may compare the internet layer to an address you use when osi model and tcp ip want to send a letter.


The network access layer acts as an interface between the hardware and software components in the network. The application, transport and internet layers are all implemented by software, however, the network access translates the messages from these layers osi model and tcp ip a form that can be transmitted over various media such as fiber optic cables, copper wire and wirelessly.

OSI & TCP/IP models

If we want to send an email, for example, the steps shown below would be the functions of each layer for this communication. At the application layer, we would create the email osi model and tcp ip this would be the data that would be communicated over the network.

The transport layer would then break this data into segments and add information in a process known as encapsulation. The segments would then be passed down to the internet layer and encapsulated into packets, in this layer, logical addressing would be added.

When the data is received at the destination, the reverse process would osi model and tcp ip, i.

The data would then be passed to the user.