Centralized Virtual Mapping Algorithm in Virtual Network

Virtual Network (VN) is an essential approach to reduce the complexity of the internet-based communication and computing environment. Network virtualization concept to overcome the existing robust routing, decentralization, and authentication. In this paper, we propose a collaborative and centralized algorithm which consist of three algorithms to do mapping of VN into substrate network such as, Capacity Node Sorting (CNS) algorithm, shortest path Tree (SPT) algorithm and Main Mapping (MM) algorithm. It also responsible for load balancing with respect to node capacity. AVN mapping protocol has been proposed to communicate and exchange message between substrate nodes to achieve mapping. Implementation and experimental of VN mapping algorithm are performed using Mininet simulation with RYU and POX controller.