caa a22 4500 445297115 CHVBK 20180317142545.0 cr unu---uuuuu 170323e20101201xx s 000 0 eng 10.1007/s12243-010-0194-y doi (NATIONALLICENCE)springer-10.1007/s12243-010-0194-y Network virtualization for cloud computing [Elektronische Daten] [Fabio Baroncelli, Barbara Martini, Piero Castoldi] Cloud computing enables a transparent access to information technology (IT) services such that the users do not need to know the location and characteristics of the relevant resources. While IT resource virtualization and service abstraction have been widely investigated, data transport within the cloud and its efficient control have not received much attention in the technical literature. In fact, connectivity is, itself, a service that contributes to the overall performance of the cloud. This paper introduces a novel classification of the Network as a Service (NaaS) such that it can be orchestrated with other cloud services. Then, it proposes a network virtualization platform (NVP) as the mediation layer able to provide NaaS to cloud computing by exploiting the functionality provided by control plane (CP)-enabled networks. In particular, the proposed NVP maps the end-point addresses and perceived Quality of Service parameters of a NaaS requests in the parameters characterizing the connectivity as viewed by transport networks using the information obtained from the CP at the boundary of the network. The NVP uses these parameters to fulfill connectivity requests to the CP. Finally, this paper presents a complete design from both the software implementation and network signaling perspective of two use cases in which NaaS is involved as stand-alone facility for the connectivity service provisioning or is combined with other cloud services for a storage service provisioning. Institut Télécom and Springer-Verlag, 2010 Network virtualization nationallicence Cloud computing nationallicence Networking nationallicence Baroncelli Fabio CNIT, Pisa, Italy aut Martini Barbara CNIT, Pisa, Italy aut Castoldi Piero Scuola Superiore Sant'Anna, Pisa, Italy aut annals of telecommunications - annales des télécommunications Springer-Verlag 65/11-12(2010-12-01), 713-721 0003-4347 65:11-12<713 2010 65 12243 https://doi.org/10.1007/s12243-010-0194-y text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/s12243-010-0194-y text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Baroncelli Fabio CNIT, Pisa, Italy aut NATIONALLICENCE 700 1- Martini Barbara CNIT, Pisa, Italy aut NATIONALLICENCE 700 1- Castoldi Piero Scuola Superiore Sant'Anna, Pisa, Italy aut NATIONALLICENCE 773 0- annals of telecommunications - annales des télécommunications Springer-Verlag 65/11-12(2010-12-01), 713-721 0003-4347 65:11-12<713 2010 65 12243 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer