BFD is supported over MPLS-TP, RSVP, and LDP LSPs, as well as over pseudowires that support Layer 2 services such as Epipe VPLS spoke-SDPs and mesh-SDPs using centralized BFD. See the 7450 ESS, 7750 SR, 7950 XRS, and VSR MPLS Guide and 7450 ESS, 7750 SR, 7950 XRS, and VSR Layer 2 Services and EVPN Guide: VLL, VPLS, PBB, and EVPN for more information.