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A. F. Olivo, J. G. Ordas, B. Berde, A. Welin, T. Ferrari, F.-J. Westphal, R. Herber, N. Leymann, A. Di Giglio
Paper submitted to IEEE Communications Magazine
Abstract - Migration towards the next generation network (NGN), supporting broadband end-to-end services for all, by means of a distributed control plane and a generalized IP over optical unified transport plane requires operators to modify some business concepts and rearrange their traditional way of selling connectivity. At the same time, new market agents can appear to offer services with a more dynamic style if the possibilities of the NGN, by means of Virtual Private Networks, are mastered. This paper reviews such application scenarios for future VPN operation; a wide panorama is presented not only from the technical point of view but also referred to results obtained from an in-depth analysis of particular case studies.
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