RIP (Routing Information Protocol) is an old distance vector routing protocol. It uses a hop count as its metric, which is limited to a maximum of 15 routers. There are two versions of RIP, version 1 transmits full updates every 30 seconds using broadcast. Version 2 supports partial, triggered updates and uses multicast. RIP is a slow routing protocol compared to other Interior Gateway Protocol (IGP) like OSPF, EIGRP, and IS-IS. Even though it’s not commonly used anymore, it is still a great routing protocol to start with if you are new to networking.