摘要
近年来,随着网络扁平化趋势的日益突出,软件定义网络(Software-Defined Network,SDN)理念得到业界的广泛关注和认可。SDN作为一种全新的网络架构模型,可以将控制转发分离,并通过开放API及软件定义实现整个网络的集中管理,极大地改善了网络的扩展能力和灵活性。同时,在云计算、物联网、移动互联网、社交网络等新技术、新模式、新应用的快速冲击与推动下,网络规模急剧扩大,对网络服务质量(Quality of Service,QoS)的需求差异与日俱增。因此,分析SDN网络与传统网络的差异及当前的研究业态,提出了一种链路资源抢占及重建方法,用于解决高优先级应用的资源抢占。
In recent years, with the trend of network flattening becoming increasingly prominent, the concept of SDN （Software-Defined Network） receives widespread attention and recognition from the industry. As a new network architecture model, SDN can separate the control and forwarding, and realize centralized management of the whole network via open API and software definition. And this could greatly improve the scalability and flexibility of the network. At the same time, under the rapid impact and promotion of cloud computing, IoT, mobile Internet, social network and other new technologies, new modes and new applications, the scale of network is expanded dramatically, and the demand for Quality of Service （QoS） increases with each passing day. For this reason, the differences of between SDN network and traditional network, including the current research formats, are analyzed and discussed. Then, the method of link resource preemption and reconstruction is proposed, for the purpose to solve resource preemption for high-priority applications.
出处
《通信技术》
2017年第11期2502-2506,共5页
Communications Technology
关键词
软件定义网络
服务质量
资源动态管理
资源重构
Software-Defined Network （SDN）
Quality of Service （QoS）
resource dynamic management
resources restructure
