NFV 기반환경에서의 정책기반 네트워크 서비스 배치 설계 및 구현

초록

In the Network Function Virtualization (NFV) environment, the placement requirements for network services can be specified manually by using network service descriptors. But its not usually optimal because of constituent virtual network functions with service-specific requirements and variant capabilities of NFV infrastructures (NFVIs). In order to solve the above issue, in this paper, a policy framework is proposed for automating network service deployment by using TOSCA specification language. The proposed policy framework could support the optimized placement by considering all of the network infrastructure, the platform capabilities, and the service specific constraints. Using an open source MANO (management and orchestration) software, the proposed policy framework is implemented and shows that it could place the NS automatically while meets the required specific constraints of VNFs (virtual network functions).