This Recommendation provides architecture and mechanisms for Pseudowire (PW) dual-homing protection in MPLS transport profile (MPLS-TP) networks. It also describes the Dual-Homing Coordination (DHC) protocol defined in [IETF RFC 8184] and [IETF RFC 8185].
The mechanisms defined herein protect point-to-point MPLS-TP PWs against failures within or at the edges of the MPLS-TP network.