Link-State Routing is a type of network routing protocol that enables routers to share information about the state of their links with other routers in the network. Each router creates a map of the entire network by exchanging link-state advertisements (LSAs) with its neighbors. This allows routers to have a complete view of the network topology. Once the network map is established, each router uses algorithms, such as Dijkstra's algorithm, to calculate the shortest path to each destination. This method improves routing efficiency and reduces the chances of routing loops, making it a reliable choice for larger networks.