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A Resource Description Language with Vagueness Support for Multi-Provider Cloud Networks

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5 Author(s)
Schaffrath, G. ; T-Labs., Tech. Univ. Berlin, Berlin, Germany ; Schmid, S. ; Vaishnavi, I. ; Khan, A.
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The concept of CloudNets, virtual networks connecting cloud resources, has recently attracted much interest from both academic as well as business sides. CloudNets can realize the vision of affordable customized infrastructures. In particular, such networks are expected to be offered even in federated environments with multiple providers. Inter-provider communication about requirements or provisioning of truly customized virtual environments however require a powerful flexible resource description language (RDL). While extensibility and expressiveness seem to be natural requirements for such a language, we identify another less intuitive requirement affecting all actors (or stakeholders) in their economic benefits: the possibility to omit arbitrary specification details and to remain vague while at the same time describing real world scenarios. Not only may a description language ignoring this constraint easily become too bulky to use, it is also likely to force players to focus on details they are not interested in or lack the knowledge to map their actual requirements to. This paper identifies detailed requirements for an RDL to allow for topology and requirement communication in business scenarios. Furthermore, we present the FleRD flexible resource description language for multi-provider virtual network architectures. FleRD is fully incorporated in our own CloudNet prototype architecture.

Published in:

Computer Communications and Networks (ICCCN), 2012 21st International Conference on

Date of Conference:

July 30 2012-Aug. 2 2012