http://www.rfc-editor.org/rfc/rfc6378.txt
RFC 6378: MPLS Transport Profile (MPLS-TP) Linear Protection, Y. Weingarten, S. Bryant, E. Osborne, N. Sprecher, A. Fulignoli2011-10-01T23:00:00-00:00This document addresses the functionality described in the MPLS-TP Survivability Framework document (RFC 6372) and defines a protocol that may be used to fulfill the function of the Protection State Coordination for linear protection, as described in that document. [STANDARDS-TRACK]