Bellagamba, E., Takacs, A., Mirsky, G., Andersson, L., Skoldstrom, P., and D. Ward, "Configuration of Proactive Operations, Administration, and Maintenance (OAM) Functions for MPLS-Based Transport Networks Using RSVP-TE", RFC 7487, DOI 10.17487/RFC7487, March 2015, <https://www.rfc-editor.org/info/rfc7487>.