Hi,
With the development of (Transport MPLS, T-MPLS for short), interactions between the international telecommunication union telecommunication standardization sector (ITU Telecommunication Standardization Sector, ITU-T for short) and the Internet engineering task force (Internet Engineering Task Force, IETF for short) is increasing, and by means of the joint-working of the ITU-T and the IETF, the conventional IETF MPLS is extended by using an IETF standardization process in terms of forwarding, operation, administration and maintenance (Operation, Administration and Maintenance, OAM for short), reliability, network management, and control plane protocol, and this technique is referred to as MPLS-TP (MPLS Transport Profile).