Network layer in computer networks geeksforgeeks. OSI Model was developed by the International Organization for Standardization (ISO). These networks can range from simple setups, like connecting two devices in your home, to massive global systems, like the Internet. These connected devices use a set of rules called communication protocols to transfer information over physical or wireless technology. What is Network Layer (Layer-3)? Layer-3 in the OSI model is called Network layer. Modern networks offer more than just connectivity. Each layer has specific responsibilities and interacts with the layers directly above and below it. Jul 30, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more. Sep 19, 2025 · The OSI (Open Systems Interconnection) Model is a set of rules that explains how different computer systems communicate over a network. The OSI Model consists of 7 layers and each layer has specific functions and responsibilities. Networks are essential to this transformation and its success . Sep 18, 2025 · A Computer Network is a system where two or more devices are linked together to share data, resources and information. Network layer manages options pertaining to host and network addressing, managing sub-networks, and internetworking. Enterprises start with digital transformation. Sep 10, 2024 · The main aim of Network layer in OSI Reference Model is to deliver packets from source to destination across multiple links (networks). Sep 1, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more. Below are some uses of computer networks GeeksforGeeks | A computer science portal for geeks Jul 23, 2025 · Designing and managing networks is a challenging process that requires integrating various technologies such as software, hardware, firmware and electrical systems. The network layer is responsible for packet forwarding including routing through intermediate routers. Network layer takes the responsibility for routing packets from source to destination within or outside a subnet. The network layer translates the logical addresses into physical addresses It determines the route from the source to the destination and also manages the traffic problems such as switching, routing and controls the congestion of data packets. Layered Jul 27, 2025 · A computer network is an interconnected computing device that can exchange data and share resources. In the seven-layer OSI model of computer networking, the network layer is layer 3. Conclusion In conclusion, the OSI (Open Systems Interconnection) model helps us understand how data moves in networks. This layered approach makes it easier for different devices and technologies to Jul 23, 2025 · Your All-in-One Learning Portal: GeeksforGeeks is a comprehensive educational platform that empowers learners across domains-spanning computer science and programming, school education, upskilling, commerce, software tools, competitive exams, and more. Layers isolate specific tasks, operate independently and rely on one another only for data exchange, ensuring the network functions as a cohesive system. Here we have listed all the functions performed by the Network layer. To simplify this task, the concept of layering was introduced. Two different subnet may have different addressing schemes or non-compatible Mar 26, 2025 · This tutorial explains the OSI reference model. It consists of seven distinct layers: Physical, Data Link, Network, Transport, Session, Presentation, and Application. The main role of the network layer is to move the packets from sending host to the receiving host. Learn the seven layers of the OSI model and the functions of each layer in detail through examples. 0v6pc xnb8io plhc wvhx tjgre mpf q3 bk2 sanl j7gs