RIP - Routing Information Protocol
RIP is a distance vector, intra-domain routing protocol originally designed for PUP (Xerox PARC Universal Protocol, 1980) and used in XNS
RIP became associated with both UNIX and TCP/IP in 1982 when the Berkeley Standard Distribution (BSD) implementation of UNIX began shipping with a RIP implementation referred to as routed
RIP is formally defined in RFC 1058