What is the main advantage of using OSPF over RIP for larger networks?

The main advantage of using OSPF (Open Shortest Path First) over RIP (Routing Information Protocol) in larger networks is faster convergence times. OSPF is designed as a link-state routing protocol, which allows it to rapidly adapt to changes in the network topology. When a change occurs, OSPF routers only disseminate information about the change rather than sending the entire routing table, as RIP does. This efficient communication mechanism enables OSPF routers to quickly recalculate the shortest paths through the network and update their routing tables, resulting in a more responsive and stable network environment.

In contrast, RIP, being a distance-vector routing protocol, can take longer to converge due to its periodic updating nature, where it updates its entire routing table at regular intervals. This can lead to longer downtimes and routing loops during convergence, especially in larger, more complex networks.