The time for an all-optical network is already here. The huge capacity of the optical resources, in backbones, distribution and access networks cannot be completely used by current services. The remainders can be used under the deployment of new models for service provisio ning. Network virtualizati on is considered as a serious candidate to enable the flexibl e provision of services in the future Internet. This paper introduces a framework to enhance network virtualization allocati on in optical networks. To increase resources utilization efficiency, a new layer above virtualized elements is introduced to map the demands over the resour ces and infrastructures. For that layer, a strategy based on a resource squa tting model is presented, modeled and analyzed.

Peer Reviewed