基于云网络架构的虚拟网络映射算法研究

Research on Virtual Network Mapping Algorithm Based on Cloud Network Architecture

云网络架构采用控制与转发分离机制实现了资源的灵活分配,为了满足云网络架构的资源分配符合多业务的资源需求,提出了一种基于云网络架构的虚拟网络映射算法,提高了资源利用率。建立的虚拟网络映射算法模型,给出了虚拟网络映射算法的约束条件和优化目标。针对语音、视频和数据3种业务进行了仿真,结果表明,提出的算法提高了控制资源利用率、转发资源利用率和链路资源利用率。

The cloud network architecture uses the forwarding and control element separation mechanism to realize the flexible allocation of resources. In order to meet the resource requirement that the resource allocation of cloud network architecture is accordance with the multi-service, a virtual network mapping algorithm based on cloud network architecture is proposed to improve the resource utilization. The established virtual network mapping algorithm model gives its constraint condition and optimization objective. The three kinds of business such as voice, data and video are simulated. The results show that the proposed algorithm can improve the utilization of control resource, forwarding resource and link resource.