OSPF

🔌 Routing Protocols: IGP and EGP Routing protocols implement routing algorithms in real-world networks, classified based on their administrative domain: 🏠 IGP (Interior Gateway Protocol) Used within a single autonomous system (AS). RIP (Routing Information Protocol) Distance-vector protocol using hop count. Max hop count = 15 (limit to small networks). Periodic full-table updates → bandwidth-heavy. OSPF (Open Shortest Path First) Link-state protocol using Dijkstra’s algorithm. Each router constructs full network map. Faster convergence, supports variable-length subnet masks (VLSM), and areas. IS-IS (Intermediate System to Intermediate System) ...