http://www.rfc-editor.org/rfc/rfc5522.txt
RFC 5522: Network Mobility Route Optimization Requirements for Operational Use in Aeronautics and Space Exploration Mobile Networks, W. Eddy, W. Ivancic, T. Davis2009-10-01T23:00:00-00:00Substantial input to these requirements was given by aeronautical communications experts outside the IETF, including members of the International Civil Aviation Organization (ICAO) and other aeronautical communications standards bodies. This memo provides information for the Internet community.