Technology & Internet What does layer 3 mean? March 14, 2026 by Mercier | Leave a Comment Layer 3, also known as the Network Layer, is a fundamental concept in computer networking that defines how data is routed across different networks. It’s responsible for addressing, packaging, and routing data packets from their source to their destination, ensuring they can traverse the internet or other interconnected networks. Think of it as the postal […] Read more ยป