QoS and Resource-Aware Security Orchestration and Life Cycle Management

Zero-touch network and service management (ZSM) exploits function virtualization (NFV) software-defined networking (SDN) to efficiently dynamically orchestrate different chaining (SFC), whereby reducing capital expenditure operation expenses. The SFC is an optimization problem that shall consider constraints, such as Quality of Service (QoS), actual resources, achieve cost-efficient scheduling allocation the functions. However, large-scale, complexity security issues brought by virtualized IoT networks, which embrace segments, e.g., Fog, Edge, Core, Cloud, can also exploit proximity (computation offloading functions Edge), imposes new challenges for ZSM orchestrators intended optimize SFC, thereby achieving seamless user-experience, minimal end-to-end delay at a cost. To cope with these challenges, this paper proposes optimized orchestration system addresses whole life-cycle SFCs, considers QoS (including delay, bandwidth, jitters), capacities Virtual Network Functions (VNFs), potentially deployed across multiple Clouds-Edges, in terms resources (CPU, RAM, storage) current levels ensure trusted deployments. proposed has been implemented evaluated scope H2020 Anastacia EU project, 1 showing its feasibility performance manage optimizing deployment costs, overall VNF instances distribution.