Resilient optical inter-data-center network design

Optical networks have been shown to be the most viable solution for inter-data-center network implementation. Furthermore, elastic optical networks incorporating virtualization technology can significantly introduce agile delivery of cloud services. In this paper, we present resilient design of an inter-data-center network over an elastic optical network backbone aiming at minimum outage probability for the demands submitted to the Cloud and handled in one or more data centers in the network where a data center can have any of the following four availability values; 99.67%, 99.74%, 99.98% and 99.995%. Moreover, employment of optical network as the transport medium introduces the high availability advantage of the optical network components over the lightpaths/light-trees towards data centers. We illustrate the advantages of manycast-based provisioning of the upstream data center requests over anycast-based provisioning and minimum-cost provisioning in terms of outage probability. Furthermore, we show the impact of resilient design of the inter-data-center network on the path delay performance of upstream data center demand.