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This paper proposes a federated SDN controller architecture for optical networks. Simulations show that adequate combination of clustering strategies with enriched hierarchical path computation offer a routing performance comparable to conventional centralized architectures.
The introduction of software-defined networking (SDN) principles in the optical communications ecosystem promises to change the way things are done nowadays. Although many of these principles still require proper maturation, the main premises behind SDN are quite attractive: 1) The separation of control and data plane will ultimately result in simpler hardware elements in the network with the network...
Exploiting inverse-multiplexing in optical transport networks (OTN) leads to a cost-effective network design based on legacy 10 Gbps or 40 Gbps equipment to support next-generation services, e.g., 100 Gbps Ethernet. The inclusion of multipath routing permits to better balance the load and avoid problematic capacity bottlenecks. However, with diverse-path routing the inverse-multiplexed connections...
A heuristic optimization framework is proposed for routing virtually-concatenated 100Gb/s Ethernet over optical transport networks with distributed differential delay compensation. Under short computing times, reduced buffer sizes and limited link capacity requirements are obtained.
We propose an optimization framework for routing virtually-concatenated 100 Gb/s Ethernet signals over optical transport networks with optimal buffer dimensioning and minimum capacity requirements in distributed differential delay compensation architectures.
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