Explain how routers use link-state routing protocols to communicate network information to each other?

•Link state algorithm use link state database at each router to calculate best path using SPF algorithm,

•Router send “HELLO” message to his neighbor routers. According to hello replies from neighbors build own neighbor table at each router.

•Using flooding method distribute own neighbor table to each router.

•Using neighbor tables each router build up link state data base which describe full network topology.

•Using shortest path first algorithm each router calculate best path and buildup routing table.