Huawei Technologies Google Huawei Technologies ZTE Corp. Cisco Systems When an LSP fails to deliver user traffic, the failure cannot always be detected by the MPLS control plane. RFC 8029 defines a mechanism that would enable users to detect such failure and to isolate faults. YANG, defined in RFC 6020, is a data model definition language that was introduced to define the contents of a conceptual data stores that allow networked devices to be managed using NETCONF, as specified in RFC 6241. This document defines a YANG data model that can be used to configure and manage LSP-Ping.