http://www.rfc-editor.org/rfc/rfc1387.txt
RFC 1387: RIP Version 2 Protocol Analysis, G. Malkin1993-01-01T23:00:00-00:00As required by Routing Protocol Criteria (RFC 1264), this report documents the key features of the RIP-2 protocol and the current implementation experience. This memo provides information for the Internet community. It does not specify an Internet standard.