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Unified Multi-Layer among Software Defined Multi-Domain Optical Networks (Invited)

*, and
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
Author to whom correspondence should be addressed.
These authors contributed equally to this work.
Academic Editor: Lei Liu
Electronics 2015, 4(2), 329-338;
Received: 12 May 2015 / Revised: 1 June 2015 / Accepted: 9 June 2015 / Published: 11 June 2015
(This article belongs to the Special Issue Software-Defined Optical Networks)
PDF [671 KB, uploaded 11 June 2015]


The software defined networking (SDN) enabled by OpenFlow protocol has gained popularity which can enable the network to be programmable and accommodate both fixed and flexible bandwidth services. In this paper, we present a unified multi-layer (UML) architecture with multiple controllers and a dynamic orchestra plane (DOP) for software defined multi-domain optical networks. The proposed architecture can shield the differences among various optical devices from multi-vendors and the details of connecting heterogeneous networks. The cross-domain services with on-demand bandwidth can be deployed via unified interfaces provided by the dynamic orchestra plane. Additionally, the globalization strategy and practical capture of signal processing are presented based on the architecture. The overall feasibility and efficiency of the proposed architecture is experimentally verified on the control plane of our OpenFlow-based testbed. The performance of globalization strategy under heavy traffic load scenario is also quantitatively evaluated based on UML architecture compared with other strategies in terms of blocking probability, average hops, and average resource consumption. View Full-Text
Keywords: OpenFlow; multi-domain optical networks; software defined network; multi-layer architecture OpenFlow; multi-domain optical networks; software defined network; multi-layer architecture

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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited (CC BY 4.0).

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Yang, H.; Cui, Y.; Zhang, J. Unified Multi-Layer among Software Defined Multi-Domain Optical Networks (Invited). Electronics 2015, 4, 329-338.

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