This document specifies a mechanism to signal Point-to-Multipoint (P2MP) Pseudowires (PW) tree using LDP. Such a mechanism is suitable for any Layer 2 VPN service requiring P2MP connectivity over an IP or MPLS enabled PSN. A P2MP PW established via the proposed mechanism is root initiated. This document updates RFC7385 by re-assigning reserved value 0xFF to be the wildcard transport tunnel type.