RIP and BGP are two popular examples of distance vector routing protocols.Important PointsRouting Information Protocol (RIP)It is one of the oldest distance-vector routing protocols which employs the hop count as a routing metric. RIP prevents routing loops by implementing a limit on the number of hops allowed in a path from source to destination. The largest number of hops allowed for RIP is 15, which limits the size of networks that RIP can support.Border Gateway Protocol (BGP)It is a standardized exterior gateway protocol designed to exchange routing and reachability information among autonomous systems (AS) on the Internet. BGP is classified as a path-vector routing protocol, and it makes routing decisions based on paths, network policies, or rule-sets configured by a network administrator.Additional InformationOSPF (Open Shortest Path First)This protocol is one of a family of IP Routing protocols, and is an Interior Gateway Protocol (IGP) for the Internet, used to distribute IP routing information throughout a single Autonomous System (AS) in an IP network.SPFIt establishes a method for receiving mail servers to verify that incoming email from a domain was sent from a host authorized by that domains administrators. It piggybacks on the well-established Domain Name System (DNS).