OSPF

Open Shortest Path First (OSPF) is a link-state routing protocol used in IP networks to determine the optimal path for data packets. OSPF operates within a single autonomous system and uses a hierarchical network design with areas to improve scalability and manageability. It calculates the shortest path to each destination based on the Dijkstra algorithm and updates routing tables accordingly. OSPF supports multiple paths and provides fast convergence times, ensuring efficient routing and network reliability. It is widely used in enterprise networks due to its ability to handle large and complex network topologies and its support for various network types and sizes.