[8] Tan Y X, Zheng Y L, Wang G Q et al. Research and Practice of OTN Controller Northbound Unified Interface Model[J]. Telecommunications Science, 38, 163-172(2022).

[9] Xu Y B. Analysis of Northbound Interface of Software-defined Optical Transport Network[J]. Communication World, 21(2017).

[10] Liu B L, Yin H, Wu B et al. Transmission Access and SDN Deployment Strategy for Cloud-network Integration[J]. Telecom Engineering Technics and Standardization, 34, 38-43(2021).

[11] Lei X B. Centralized Scheme of Transmission OMC Network Management[J]. China New Telecommunications, 21, 64-65(2019).

[12] Lü W L, Niu W L, Lu Y et al. Research on Cross-domain Collaboration Scheme based on SDOTN (Software Defined Optical Transport Network)[J]. Jiangsu Communication, 37, 81-85(2021).

[13] Zheng Y L, Wang G Q. Solutions for Interconnection between SDOTN Network and other Systems within OSS Domain[J]. Designing Techniques of Posts and Telecommunications, 79-83(2019).

[14] Xu P, Yang Y S, Liu X F et al. Key Technology and Application of Multi-control System Orchestration for SD-OTN[J]. Designing Techniques of Posts and Telecommunications, 82-86(2022).