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In this Paper, we experimentally demonstrate highly flexible and intelligent interdomain coordinated actions based on adaptive software-defined networking (SDN) orchestration. An advanced multidomain multitechnology testbed is implemented, which consists of a 400-Gb/s variable capacity optical packet switching domain and a Tb/s-class flexi-grid wavelength division multiplexed optical circuit switching...
We propose and experimentally validate an SDN/NFV orchestrator to dynamically create virtual backhaul tenants over a multi-layer (packet/optical) aggregation network and deploy virtual network functions (vEPC and vSDN controller) to better adapt MNO's capacity increase.
A common Transport API is proposed for joint cloud/network orchestration, allowing interworking of heterogeneous control planes to provide provisioning/recovery of QoS-aware E2E services. We present its first demonstration in a multi-partner testbed including data-plane monitoring.
Cognitive SDN orchestration over 400-Gbps OPS and Tbps-class Flexi-WDM networks is demonstrated, where the SDN-controllable OFDM transponders and the extended transport API enable the congestion-aware provisioning of end-to-end real-time services.
Application-based Network Operations consists of existing components offering an application-driven network management. We validate its applicability to multi-tenant networks in multi-technology optical domains based on congestion detection and failure recovery by demonstrating fast reconfiguration, while keeping the upper layer unaware.
After server and storage virtualization, network virtualization adds the missing piece to the cloud computing puzzle. This paper discusses prospects, challenges and solutions for extending network virtualization into the optical domain.
Software-defined optical transceivers, a fully programmable optical express layer, and control plane-assisted network automation are key constituents of a new generation of optical core networks. This paper explains enabling technologies, reviews emerging applications, and discusses new questions arising for network design and modeling. It also examines the integration of the optical wavelength with...
We present and evaluate opportunities and challenges for packet optical transport of residential and business data services from access to core networks. Presented solutions are evaluated based on sample case studies.
We investigate the use of integrated packet/circuit/wavelength switches in next-generation optical core networks and compare different node architectures for a 46 node, 25,840 route-km US network.
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