Routing Information Protocol $($RIP$)$ is a true distance vector protocol that exclusively works on metrics based on hop count. It is an intradomain routing protocol that, though not the best routing protocol, is the protocol with least overhead for a small to moderate$$sized network. The router transmits its routing table along all its interfaces to the neighboring routers every $30$ sec$.$ However, a router may be configured not to broadcast the routing information along one or more of its interfaces, but to continue to receive updates along the same interfaces. A RIP host is said to be in active mode when it receives routing updates from its neighbors as well as transmitting its routing table to its neighbors. A RIP host is defined as operative in passive mode if it receives routing information from its neighbors but does not transmit its routing table to its neighbors. The terminal routers are generally configured in passive mode. In this context Discuss the application$/$implementation of RIP in small autonomous systems