L1, L2, L3 Layer Protocols — The Foundation of Networking Explained Simply Ever wondered how data travels from one device to another — flawlessly, every second? That’s where the magic of Layer 1, Layer 2, and Layer 3 protocols comes in. 📡 Layer 1 (Physical Layer) – Deals with cables, signals, and hardware. ➡️ Protocols: Ethernet, DSL, SONET, USB 🔗 Layer 2 (Data Link Layer) – Ensures data is error-free and properly framed for delivery. ➡️ Protocols: ARP, PPP, Frame Relay, VLAN, STP 🌍 Layer 3 (

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EIGRP Successor vs Feasible Successor — Simplified for Network Engineers Do you know how EIGRP ensures fast, loop-free routing in real networks? It’s all about understanding two key terms — Successor and Feasible Successor 💡 Quick Breakdown: ✅ Successor → The best path to the destination (active route in the routing table). ✅ Feasible Successor → The backup route that meets the Feasibility Condition (RD