基于语义网技术的SDN建模及网络资源管理接口研究

SDN(Software-Defined Networking,软件定义网络)具有功能丰富的北向接口,常用于开发人员编程实现网络功能,但网络管理人员难以通过现有的北向接口直观的了解网络情况.结合语义网技术,使用本体语言OWL对SDN网络进行多层次、细粒度的本体建模,用RDF对其进行描述,建立SDN网络资源的抽象网络视图,尽可能同底层网络解耦.此后以SPARQL查询语言作为网络资源管理的人机接口和编程接口,实现网络管理员对最短路径和网络资源Qo S的查询,对SDN网络进行图形化管控,并针对不同服务进行策略管理.

Study on the Modeling and Resource Management Interface of SDN Networks based on Semantic Web

SDN (Software-Defined Networking) provides feature-rich northbound interfaces for developers to implement various network-based functionalities by programming. However, current northbound interfaces do not usually offer convenient means for network administrators to intuitively understand the underlying network status. This paper proposes to model the SDN network resources by means of Semantic Web techniques. OWL is used to conduct the multi-level and fine-grained ontological modeling. RDF is used to describe an SDN network as an abstract view, decoupled from the physical network. Then, SPARQL is used as the human-machine interface or programming interface to conduct management such as shortest path search, QoS provisioning, etc. In this way, the management of SDN network resource can be done in based on the intuitive GUI and service policies can be made accordingly.