T-NOVA: A marketplace for virtualized network functions

Network Functions Virtualization (NFV) is a concept, which has attracted significant attention as a promising approach towards the virtualization/""softwarisation"" of network infrastructures. With the aim of promoting NFV, this paper outlines an integrated architecture, designed and developed within the context of the EU FP7 T-NOVA project, which allows network operators not only to deploy virtualized Network Functions (NFs) for their own needs, but also to offer them to their customers, as value-added services (Network Functions as-a-Service, NFaaS). Virtual network appliances (gateways, proxies, firewalls, transcoders, analyzers etc.) can be provided on-demand as-a-Service, eliminating the need to acquire, install and maintain specialized hardware at customers' premises. A ""NFV Marketplace"" is also introduced, where network services and functions created by a variety of developers can be published, acquired and instantiated on-demand.