PTN as a high-quality transport network carries important group customer service and mobile backhaul business. In recent years

China Mobile has proposed SDN PTN technology for the first time in the industry

defi ning core technologies such as hierarchical network information model abstraction

modeldriven and policy-oriented control data running architecture for business. The SPTN series of products include super controller

miniaturized access SPTN domain controller and APP application platform. This paper fi rst introduces the overall architecture and application scenario of SPTN system. Secondly

it focuses on the analysis of SPTN product architecture

interface model and function characteristics. Finally

it introduces SPTN standardization and fi led trial situation.