Open Networking Summit Europe 2018

NFV deployment is a hierarchical stack where a unified Orchestrator takes the responsibility of closed-loop automation for the resilience of network services. The closed-loop should be event driven for both efficiency and accuracy. The closed-loop is triggered by some symptom coming from given alert or metrics thresholds. Once triggered, a predefined policy is used to connect the symptom with proper recover operations which is a status machine relying on events too. So, the design of event driven framework becomes the key for Orchestrator and a challenge too. The NFV stack is across different layers from the Orchestrator to various VIM Infrastructures involving complex monitor/message systems and event sources. We will share an innovated framework which federates the events/alerts/metrics across different layers and sources with a demo of closed-loop automation by typical NFV use cases.