Pros and Cons of the OSI Reference Model

Pros and Cons of the OSI Reference Model
September 30, 2022
Author : Nandy

Imagine you're trying to learn about the Internet, and when you look at it from a different perspective, like understanding its functioning and operations. This new perspective can change how you see things and even make your understanding better than before. Well, the same thing is true with the Open Systems Interconnect (OSI) Reference Model. When looking at the OSI model, it's not just an academic exercise but something that has practical applications. If you decide to use this model, there are pros and cons to doing so that must be considered first. The OSI model is a conceptual framework that provides a reference point for describing the functions of computer networks. It was first introduced in 1984 by ISO, which published it as an international standard.

The OSI reference model is a method of network communication and network definition. The top layer is the application layer, which defines the specific protocols for each application. The next layer down is the transport layer, where data is sent from one machine to another. This layer's job is to make sure that data can travel through a network reliably and securely. Now, you might be wondering what this has to do with security. Well, for one thing, it studies how different devices can interact with one another to move information around a network in a way that protects both sides from interference from other machines or devices.

What is OSI Reference Model

What is the OSI Reference Model?

With the IT industry growing at an exponential rate, a new approach to buying and selling software is needed. This can be achieved by making use of a model that has been used by many industries for years. This model is known as the Open Systems Interconnection Reference Model. It allows businesses to understand the behaviour of different networking components so they can make informed decisions about their choices and configurations.

The Open Systems Interconnection reference model is used to describe the protocol layers of computer networks. It was developed by the International Organization for Standardization and is managed by the International Electrotechnical Commission, which is a non-profit organization dedicated to developing standards. The OSI reference model forms the basis of most information technology standards today and remains popular due to its broad adoption across industries and countries.

The OSI model is a reference model for communication that was first introduced in 1983 by the organization "Open Systems Interconnection", commonly known as OSI. The OSI reference model divides information, from the lowest layer up to the highest layer, into seven layers, including

  • Physical layer
  • Data link layer
  • Network access layer
  • Transport layer
  • Session layer
  • Presentation layer
  • Application layer

Each of these layers has its own set of tasks to complete during communication.

Pros of the OSI Reference Model

  • Tightly defined layers of the OSI model can be defined, standardized, and implemented in a way that allows for a great deal of system-wide communication.
  • The OSI model is a good starting point for understanding how different protocols work together, which can help developers create more efficient systems.
  • The reference model provides a good understanding of how protocols work with each other, which can help developers create more efficient systems. It is a truly generic model, so it can be used for anything: for example, we could use it in education, health care, and even architecture.
  • The main advantage is that the OSI model makes sense and works. It has been around for a long time, making it a stable model. If you already know how to communicate on your network, then you can use the reference model to communicate with others on the same network for data transfer.
  • The OSI model benefits you in that you can buy all the necessary software or hardware to build your network and install it at home. You will interact with your computer when you are building a program, but since it is an OSI model, you do not need to worry about it.
  • The OSI Reference Model is an architecture standard for network communications. If you want to perform a kind of function, then each layer provides its services with the use of protocols. The OSI model is more than just a model; it is also an abstraction that helps in understanding and designing systems.
  • The OSI Reference Model divides the process of data communication into easier-to-understand layers. The seven-layer model starts at the hardware level when you transmit a signal through a wire or cable. Methods such as labelling and addresses are used to differentiate data packets sent over different kinds of cable. Next, at the application layer, systems configure themselves to interact with each other.

Some of its drawbacks are:

  • One of the biggest problems with the OSI Reference Model is that it's based on a network architecture that doesn't exist anymore. It was developed in the 1960s when computers were huge and slow and there were only a few networks in a single building. By today's standards, the OSI Reference Model is obsolete.
  • Another issue is that it's not a very effective way to talk about web applications. Web applications are made up of many services - like HTTP and HTTPS - and don't necessarily rely on just one protocol like TCP/IP.
  • And even if we accept that the OSI Reference Model makes sense in terms of network communications between machines within a single building, it would be difficult to apply this model to web applications that involve multiple clients connecting to a server across different networks at once.
  • The OSI Reference Model is great but difficult to implement in real networks. There are many different protocols and information flows that must be managed, and the processes for implementation can be complex and lengthy.
  • The OSI Reference Model is complex and overly complicated. It is intended to demonstrate the interaction of communication layers, but it does not provide any context for why it should be used in specific situations. In addition, it can be quite unwieldy and difficult to understand.
  • The initial implementation of the OSI model is costly, which results in a decrease in company profitability. However, as enterprises improve their understanding of the OSI reference model and add more layers to improve security, it becomes less expensive to maintain and monitor products.
  • The OSI reference model can be very costly to implement, especially in small businesses and start-ups. It may also prove difficult to set up in hotels, resorts, or other large-scale franchises. This is because the OSI reference model requires a lot of specialized equipment and software. It can be expensive to set up, maintain, and monitor all the layers in an organization.

OSI Reference model

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2024-04-18 17:42:07
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