Virtual Infrastructures as a Service enabling Converged Optical Networks and Data Centres

Riera, Jordi Ferrer; Tzanakaki, Anna; Antonescu, Alexandru-Florian; Anastasopoulos, Markos; García-Espín, Joan A.; Escalona, Eduard; Peng, Shuping; Landi, Giada; Bernini, Giacomo; Belter, Bartosz; Parniewicz, Damian; Hesselbach, Xavier; Figuerola, Sergi; Simeonidou, Dimitra (2014). Virtual Infrastructures as a Service enabling Converged Optical Networks and Data Centres. Optical Switching and Networking, 14, pp. 197-208. Elsevier 10.1016/j.osn.2014.05.017

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Abstract Cloud computing service emerged as an essential component of the Enterprise {IT} infrastructure. Migration towards a full range and large-scale convergence of Cloud and network services has become the current trend for addressing requirements of the Cloud environment. Our approach takes the infrastructure as a service paradigm to build converged virtual infrastructures, which allow offering tailored performance and enable multi-tenancy over a common physical infrastructure. Thanks to virtualization, new exploitation activities of the physical infrastructures may arise for both transport network and Data Centres services. This approach makes network and Data Centres’ resources dedicated to Cloud Computing to converge on the same flexible and scalable level. The work presented here is based on the automation of the virtual infrastructure provisioning service. On top of the virtual infrastructures, a coordinated operation and control of the different resources is performed with the objective of automatically tailoring connectivity services to the Cloud service dynamics. Furthermore, in order to support elasticity of the Cloud services through the optical network, dynamic re-planning features have been provided to the virtual infrastructure service, which allows scaling up or down existing virtual infrastructures to optimize resource utilisation and dynamically adapt to users’ demands. Thus, the dynamic re-planning of the service becomes key component for the coordination of Cloud and optical network resource in an optimal way in terms of resource utilisation. The presented work is complemented with a use case of the virtual infrastructure service being adopted in a distributed Enterprise Information System, that scales up and down as a function of the application requests.

Item Type:

Journal Article (Original Article)


08 Faculty of Science > Institute of Computer Science (INF) > Communication and Distributed Systems (CDS)
08 Faculty of Science > Institute of Computer Science (INF)


000 Computer science, knowledge & systems








Dimitrios Xenakis

Date Deposited:

13 Jun 2014 16:02

Last Modified:

01 May 2020 10:47

Publisher DOI:


Uncontrolled Keywords:

Distributed enterprise, information system




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