http://www.rfc-editor.org/rfc/rfc2102.txt
RFC 2102: Multicast Support for Nimrod : Requirements and Solution Approaches, R. Ramanathan1997-02-01T23:00:00-00:00Nimrod does not specify a particular solution for multicasting. Rather, Nimrod may use any of a number of emerging multicast techniques. We identify the requirements that Nimrod has of a solution for multicast support. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.