The Network Layer is the third layer in the OSI (Open Systems Interconnection) model, also referred to as Layer 3. Its primary function is to enable communication between different networks by establishing routes and regulating the forwarding of data packets between devices. It is responsible for logical addressing, packet forwarding, and network topology. The most commonly used protocol at the Network Layer is the Internet Protocol (IP).
The Network Layer employs routers to route packets between different subnets or networks. These routers analyze the destination address of a data packet and determine the best path for it to reach its destination.
In summary, the Network Layer plays a crucial role in ensuring connectivity between different networks and facilitating the efficient transmission of data packets across these networks.
