http://www.rfc-editor.org/rfc/rfc8306.txt
RFC 8306: Extensions to the Path Computation Element Communication Protocol (PCEP) for Point-to-Multipoint Traffic Engineering Label Switched Paths, Q. Zhao, D. Dhody, R. Palleti, D. King2017-11-01T23:00:00-00:00This document obsoletes RFC 6006.