http://www.rfc-editor.org/rfc/rfc6879.txt
RFC 6879: IPv6 Enterprise Network Renumbering Scenarios, Considerations, and Methods, S. Jiang, B. Liu, B. Carpenter2013-02-01T23:00:00-00:00This document analyzes events that cause renumbering and describes the current renumbering methods. These are described in three categories: those applicable during network design, those applicable during preparation for renumbering, and those applicable during the renumbering operation.