A network switch is a physical device that operates at the Data Link layer of the Open Systems Interconnection (OSI) model — Layer ... to think about the difference between switches and routers ...

These Features Can Be Combined Into Single Units Not everyone has a separate modem, router, and access point in their home. These days, you'll find a lot of these features combined into one device ...

The third layer of the OSI Model ... router’s main job is to get packets from one network to another. Layer 3 protocols and technologies allow for network-to-network communications. A Layer 3 ...