Sep 30

Understanding The Importance of OSI Networking

OSI Networking

The Open System Interconnection (OSI) model was developed by International Organisation of Standardisation (ISO) in 1984 to conceptualise the working of a networking system. In networking, when we send data, it goes through various steps at the back-end to make the communication successful, and through its 7 layers, the OSI model helps us to understand how that information travelled over a network. It not only helps the users to comprehend the process but also guides the manufacturers so that they can develop products that can inter-operate with the products developed by other vendors. Hence, we can say that an OSI model is the backbone of a network.

The purpose of networking is to enable communication between various devices interconnected over a network and the OSI model caters to that need. What a user sees as a result on the screen is due to the working of the service layer of the OSI model which includes the layer 7 – Application, and layer 6 – Presentation. It ensures that the data is in a usable form and this is the layer where data encryption occurs. The middle layer of the OSI contains the layer 5 – Session layer, which maintains the connections and is responsible for controlling ports and sessions, and layer 4 – Transport layer, which uses transmission protocols, like TCP/IP, to transmit data enable end-to-end communication. The operating system layer also has two layers functioning – layer 3, Network layer, which is responsible for the logical addressing (Ipv4 or IPv6) of the data (called packet at this layer), and layer 2, Data-link layer, which transforms the packets into frames by adding physical addressing (MAC address) to the packets. Finally, layer 1 – Physical layer – sends the data over the physical medium in the form of bits. Some new concepts these days are also named based on the OSI model, for example, Layer 2 Tunnelling Protocol.

OSI model standardises the entire networking process. It is the best guiding covenant for the vendors, the best learning tool for the students, and even helps a network designer by giving an idea about the type, and number, of hardware and software required to set up a sustainable network. As it breaks the complex process into smaller and simpler components, it makes troubleshooting quick and efficient as well. We can say, the entire networking depends upon the proper functioning of all the layers of the OSI model.

Click here for MCSE Certification

Looking for an IT Job?

Please call us on 1800 159 151, or complete the form below.

  • This field is for validation purposes and should be left unchanged.

Recent Posts

Demand for Cybersecurity in Australia – How to learn cybersecurity?

Are you thinking of a career in cybersecurity? Do you wish to change your career to cybersecurity? Are you interested to learn cybersecurity? Are you.. Read More →

Can you get a job with just a CCNA certificate?

People often worry about getting jobs after acquiring a few years of education or a specific certificate. This is the exact situation with people who.. Read More →

Does a CCNA Certification help in getting Good Jobs?

The CCNA certificate will surely help you get in a better position right now. This certificate holds much power because of its course. It mainly.. Read More →

The supply of this course/package/program is governed by our terms and conditions. Please read them carefully before enrolling, as enrolment is conditional on acceptance of these terms and conditions. Courses run subject to registrations.


Find out why we are the leading choice to help boost your career in Australia

Prepare to get IT job ready in 8 weeks

Trained 10,000+ professionals and counting

Experienced Provider: Operating Since 2004

Trained staff from 1000+ Australian Businesses

We Have Placed Candidates In

Over 1000 organisations have relied on Logitrain to be their trusted training partner.

High-quality, cost-effective training in Australia
Learn More
  • OpenPay
  • This field is for validation purposes and should be left unchanged.

Dont’ Wait. Fill the form for a free no-obligation information session with our course specialists.

About The Author

Delivering Classroom and Live Virtual Training with Price Beat Guarantee

COVID discounts on Job Programs end soon, register today.