http://www.rfc-editor.org/rfc/rfc2174.txt
RFC 2174: A MAPOS version 1 Extension - Switch-Switch Protocol, K. Murakami, M. Maruyama1997-06-01T23:00:00-00:00This memo documents a MAPOS (Multiple Access Protocol over SONET/SDH) version 1 extension, Switch Switch Protocol which provides dynamic routing for unicast, broadcast, and multicast. This memo provides information for the Internet community. This memo does not specify an Internet standard of any kind.