Distance Vector Algorithm
According to the number of hops, the routing of the entire network is determined by gradually exchanging the routing tables of neighboring routers, but the appearance of loops should be avoided
RIP is used in small networks and has a long convergence time (the convergence time is the sum of the time to notify all routers in the network)
BGP v4 is used in large networks
Link Status Route
OSPF (Open Path Shortest Protocol), used in medium-sized networks
IS-IS