http://www.rfc-editor.org/rfc/rfc2772.txt
RFC 2772: 6Bone Backbone Routing Guidelines, R. Rockell, R. Fink2000-02-01T23:00:00-00:00This document provides a set of guidelines for all 6bone routing equipment operators to use as a reference for efficient and stable deployment of 6bone routing systems. This memo provides information for the Internet community.