An MPLS service is a logical object that is created for each device that is discovered in the managed MPLS environment, even if the device does not support MPLS. The relationships that is created for an MPLS service depend on the type of device that is hosting the MPLS service and the type of VPN that is supported by the MPLS service.
The VMware Smart Assurance MPLS Manager Discovery Guide Supplement provides a description of the device types and relationships for an MPLS service. Appendix A, “MPLS Terminology,” provides definitions of P, PE, CE, and multi-VRF CE devices.