What is a router
📡 Router Explained 1. Definition A router is a device that sits at the boundary between networks and decides where to send data packets. It connects multiple IP networks or subnetworks and ensures that traffic flows efficiently. 2. Core Functions 3. Types of Routers 4. Router vs Switch vs Modem Device Role Layer Example Router Connects different networks, directs packets Layer 3 (Network) Home router linking LAN to Internet Switch Connects devices within one LAN Layer 2 (Data Link) Office switch connecting PCs & printers Modem Converts signals for ISP connection Layer 1 (Physical) DSL/cable modem providing Internet ✅ Summary: A router is the “traffic director” of networks — it connects LANs to WANs, decides packet paths, and enables multiple...
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