Adding Support for Automatic Enforcement of Security Policies in NFV Networks

Autor: Fulvio Valenza, Cataldo Basile, Antonio Agustin Pastor Perales, Antonio Lioy, Diego R. Lopez
Rok vydání: 2019
Předmět:
Zdroj: IEEE/ACM Transactions on Networking
ISSN: 1063-6692
DOI: 10.1109/tnet.2019.2895278
Popis: This paper introduces an approach towards automaticenforcement of security policies in NFV networks anddynamic adaptation to network changes. The approach relieson a refinement model that allows the dynamic transformationof high-level security requirements into configuration settingsfor the Network Security Functions (NSFs), and optimizationmodels that allow the optimal selection of the NSFs to use. Thesemodels are built on a formalization of the NSF capabilities, whichserves to unequivocally describe what NSFs are able to do forsecurity policy enforcement purposes. The approach proposed isthe first step towards a security policy aware NFV management,orchestration, and resource allocation system – a paradigm shiftfor the management of virtualized networks – and it requiresminor changes to the current NFV architecture. We prove thatour approach is feasible, as it has been implemented by extendingthe OpenMANO framework and validated on several networkscenarios. Furthermore, we prove with performance tests thatpolicy refinement scales well enough to support current andfuture virtualized networks.
Databáze: OpenAIRE