Layer 3: Network layer The Routing Layer works to coordinate related parts of a data conversation to ensure that large files are transferred. In other words, while the data link layer deals with the method in which the physical layer is used to transfer data, the network layer deals with organizing that data for transfer and reassembly.

Category:Network layer protocols - Wikimedia Commons Media in category "Network layer protocols" The following 20 files are in this category, out of 20 total. Free Essay: Five Layers in the Internet Network Model and This layer specifies the type of connection and the electrical signals, radio waves, or light pulses that pass through it. 2. Data Link Layer. Is responsible for moving a message from one computer to the next computer in the network path from the sender to the receiver. This layer has 3 functions: a. Data Link Layer of OSI Reference Model | Studytonight The main task of the data link layer is to transform a raw transmission facility into a line that appears free of undetected transmission errors to the network layer. It accomplishes this task by having the sender break up the input data into data frames (typically a few hundred or few thousand bytes) and transmit the frames sequentially. What devices are used in each layer of the OSI model? - Quora

The third layer of the OSI Model, the network layer, is where most network engineers focus their time and expertise. As Darragh commented in my post on the data link layer, Layer 2 is cool but

What is the Network Layer? (with pictures) Jul 10, 2020

Different Network layer design issues in computer networks

The network layer adds a header to the packet which includes the logical addresses of both the sender and the receiver. Internetworking: This is the main role of the network layer that it provides the logical connection between different types of networks. A Layer 3 switch is a specialized hardware device used in network routing. Layer 3 switches technically have a lot in common with typical routers, and not just in physical appearance. Both can support the same routing protocols, inspect incoming packets and make dynamic routing decisions based on the source and destination addresses inside.