Switched Networks
Switched networks are a fundamental networking architecture where data packets are forwarded between devices using network switches, which operate at the data link layer (Layer 2) of the OSI model. They create dedicated communication paths between devices, reducing collisions and improving performance compared to older hub-based networks. This concept is essential in modern Ethernet-based local area networks (LANs) and data centers.
Developers should learn about switched networks to understand how data flows in enterprise and cloud environments, which is crucial for network troubleshooting, security, and optimizing application performance. It's particularly important when working with microservices, distributed systems, or any application that relies on reliable, high-speed network communication within data centers or office networks.