Hybrid Routing is a third classification of routing algorithm. Hybrid routing protocols use distance-vectors for more accurate metrics to determine the best paths to destination networks, and report routing information only when there is a change in the topology of the network. Hybrid routing allows for rapid convergence but requires less processing power and memory as compared to link-state routing.
An example of a hybrid routing protocol is the Enhanced Interior Gateway Routing Protocol (EIGRP), developed by Cisco.