Implementation of a NFV monitoring system for reactive environments

This work aims at researching the existent solutions of monitoring and alerting techniques, as well as defining a suitable architecture, design and implementation of a complete and customizable monitoring and alerting framework used to inspect and notify specific conditions on dynamically instantiated applications operating in the network. Such Network Services (NS) are used in the Network Function Virtualization (NFV) architecture, allowing rapid instantiation and configuration of virtualized environments that handle network configuration. This design and implementation seek to provide more flexibility and dynamicity to the network operator to monitor custom or generic metrics and trigger notifications based on custom thresholds, without depending on the Virtual Network Function (VNF) developer to adapt its descriptor and onboard each version into the NFV Orchestrator (NFVO) prior to each usage. The framework here developed follows a modular architecture that separates the monitoring and alerting policies from the onboarding and instantiation process of the Network Functions. The architecture also facilitates the integration with other systems and adapting the functionality of an operational environment thanks to its decoupled and modular approach. The presented work considers a monitoring and alerting framework that is especially useful for dynamic environments such as those relying in NFV, like those in the EU H2020 PALANTIR project. There, the framework is used to help assessing the correct behavior of the Security NSs that are used to prevent or mitigate security anomalies in the network of each client. If abnormalities are found, remediation measures will take place to replace the potentially compromised NS instances with clean, appropriate ones.Objectius de Desenvolupament Sostenible::9 - Indústria, Innovació i Infraestructur