运营商SDN云网协同架构和关键技术研究

[摘要] 研究运营商重构新一代云网协同架构所涉及的关键技术，从架构角度出发，提出了从业务编排器、软件定义网络（SDN）协同器和服务提供者接口（SPI）到云商应用程序编程接口（API）的设计要点。同时，还深入研究了分段路由隧道（SRTE）、虚拟可扩展局域网（VXLAN）、软件定义广域网（SD-WAN）和点到点（POP）探测等前沿云网网络技术，提出了如何将这些技术进行整合以实现统一SDN的调度和管理。

[关键词] 云网协同；SDN编排器；SPI；SD-WAN；VXLAN；SRTE；POP探测

[Abstract] In this paper, the key technologies involved in the reconstruction of a new generation of cloud network architecture for service provider are studied, and the design points of the cloud network orchestration, software defined network (SDN) coordinator, service provider framework (SPI), and application program interface (API) are put forward. The cloud network technologies including segmented routing tunnel (SRTE), virtual extensible local area network (VXLAN), software defined wide area network (SD-WAN) and point-to-point (POP) detection are also studied. Finally, to realize unified SDN scheduling and management, the way to integrate these technologies is proposed.

[Keywords] cloud network; SDN orchestration; SPI; SD-WAN; VXLAN; SRTE; POP detection