Research on SFC Deployment with Variable Granularity based on Microservice Architecture

Network function virtualization (NFV) solves the problem of inflexibility in traditional network, but there are still some problems with service function chain (SFC) in some usage scenarios. Aiming at the optimization problem of end-to-end delay and resource overhead of SFC in NFV. Firstly, according to the user's service function connection request, the VNF is functionally divided into the most fine-grained atomNF according to the operation logic which is based on microservice architecture, and the redundant logical units are eliminated. Then, the path is planned according to the resource status of nodes and deployment units. Finally, the atomNF in the same node is aggregated in a single container. Simulation results show that the proposed method can optimize the end-to-end delay and node resource utilization.