Open Shortest Path First (OSPF) is a link-state routing protocol that includes several mechanisms to prevent routing loops. Here's a breakdown of the key features that help OSPF maintain loop-free routing:
1. **Link-State Database (LSDB):** Each OSPF router maintains a database of the network's topology, known as the link-state database. This database contains information about all OSPF routers and their links, which are updated through Link


