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首页> 外文期刊>Communications Surveys & Tutorials, IEEE >Comprehensive Survey on T-SDN: Software-Defined Networking for Transport Networks
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Comprehensive Survey on T-SDN: Software-Defined Networking for Transport Networks

机译：T-SDN的全面调查：传输网络的软件定义网络

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摘要

Paradoxically, with an ever-increasing traffic demand, today transport-network operators experience a progressive erosion of their margins. The alarms of change are set, and software define networking (SDN) is coming to the rescue with the promise of reducing capital expenditures and operational expenses. Driven by economic needs and network innovation facilities, today transport SDN (T-SDN) is a reality. It gained big momentum in the last years, however, in the networking industry, the transport network will be perhaps the last segment to embrace SDN, mainly due to the heterogeneous nature and complexity of the optical equipment composing it. This survey guides the reader through a fascinating technological adventure that provides an organic analysis of the T-SDN development and evolution considering contributions from: academic research, standardization bodies, industrial development, open source projects, and alliances among them. After creating a comprehensive picture of T-SDN, we provide an analysis of many open issues that are expected to need significant future work, and give our vision in this path toward a fully programmable and dynamic transport network.
机译：矛盾的是，随着交通需求的不断增长，如今的运输网络运营商的利润逐渐受到侵蚀。发出更改警报，并且软件定义网络（SDN）即将解救，并有望减少资本支出和运营支出。在经济需求和网络创新设施的推动下，如今的传输SDN（T-SDN）已成为现实。近年来，它获得了巨大的发展势头，但是，在网络行业中，传输网络可能是拥抱SDN的最后一个部分，这主要是由于组成它的光学设备的异构性质和复杂性。该调查通过引人入胜的技术历程来指导读者，该冒险对T-SDN的发展和演变进行了有机分析，并考虑了以下方面的贡献：学术研究，标准化机构，工业发展，开源项目以及它们之间的联盟。在全面了解T-SDN之后，我们提供了对许多未决问题的分析，这些问题有望在未来进行大量工作，并在实现完全可编程和动态传输网络的道路上提供我们的愿景。

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