In this Cloud-centric, 5G and IoT era, operators are facing challenges of current network and transformation towards the Cloud-centric network. The Cloud CO architecture is the cornerstone of NG broadband network to enable network & service decoupling, SDN, NFV and cloud technologies in order to address multi-access, multi-tenant and fast service innovation, with various of flexible network modes. We present Huawei’s understandings, experiences, and learnings from the executive projects in the scenarios of access, metro network, overlay VPN and NFVI. The details of network abstraction, slicing and centralized control, VNF/VNFC diversity and use cases, overlay networking and I/O technologies in NFVI, domain orchestration and enhanced assurance based on data analysis will be discussed. Open ecosystem and Huawei vision will be shared.
