节点链路同时映射的多类型服务资源编排算法OA北大核心CSTPCD

To tackle the issues of a high blocking rate of virtual requests and underutilization of physical network re-sources,a heuristic algorithm for orchestrating multi-type service resources was proposed by simultaneously mapping nodes and links.The physical network node attributes were considered when mapping the first node,the physical net-work node attributes and link attributes were comprehensively considered when mapping node-link tuples,and the net-work link attributes were considered when mapping links,so as to find the mapping policy for virtual network requests in the underlying physical network containing multiple types of service resources.Simulation results show that the pro-posed algorithm can reduce the blocking rate of virtual network requests and improve the utilization efficiency of mul-tiple types of resources in the physical network.