In this video, you’ll learn about the Network Layer (Layer 3) of the OSI model and its role in delivering data across different networks. The lesson covers how this layer is responsible for logical addressing, routing, and path determination, ensuring that packets move from the source device to the correct destination, even across multiple networks.

You’ll also understand the difference between IP addressing (IPv4 and IPv6) and how routers use these addresses to make forwarding decisions. Key concepts like packet forwarding, encapsulation, and de-encapsulation are explained, along with the importance of protocols such as IP, ICMP, OSPF, and EIGRP in managing communication.

By the end of this video, you will clearly understand how the Network Layer provides end-to-end packet delivery, logical addressing, and routing functions, making it the backbone of internetwork communication.