NeTS: JUNO: Cost-Effective and Scalable Architectures for Multi-Granular Optical Networks

NeTS：JUNO：用于多粒度光网络的经济高效且可扩展的架构

• 批准号: 1406971
• 负责人: Suresh Subramaniam
• 金额: $ 28.23万
• 依托单位: George Washington University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2014
• 资助国家: 美国
• 起止时间: 2014-04-01 至 2018-03-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1406971&HistoricalAwards=false
• 关键词: NeTS; JUNO; Cost; Effective; Scalable

Optical networks have expanded their reach from national backbone networks to metropolitan and customer access networks, and are making their way into datacenters. This has been made possible due to great strides in two arenas: optical switching technology including the development of reconfigurable optical add-drop multiplexers and wavelength-selective switches; and efficient transmission methods that enable flexible provisioning of elastic bandwidth to applications. Nevertheless, there are fundamental fiber capacity limitations that will inevitably necessitate multiple parallel fibers between switching nodes and larger switches. A solution to the switch-scaling problem is to bundle some of the wavelengths or frequency slots together and switch them as a band. Yet, current methods are inadequate because technological advancements have rendered some of the research obsolete or have introduced new problems that have not been attempted before.The objectives of this joint US-Japan project are to develop novel scalable and cost-effective multi-granular switching node architectures, and to develop efficient algorithms for provisioning bandwidth to applications. Scaling an architecture typically introduces some form of penalty, such as a provisioning constraint, that the network operator must respect. This project will aim at identifying what features bring about the most cost reduction and increase in scalability without overly limiting network operators? flexibility. The architectures and algorithms will be evaluated using theoretical analyses, simulations, and small-scale experiments.By targeting an important component of the cost of optical networks, this project will enable the faster adoption of optical infrastructure and the availability of high-speed networking for all.

光网络已经将其覆盖范围从国家骨干网络扩展到城域和客户接入网络，并正在进入数据中心。这归功于两个领域的巨大进步：光交换技术，包括开发可重新配置的光分插复用器和波长选择交换机；以及高效的传输方法，使灵活地向应用提供弹性带宽成为可能。然而，存在基本的光纤容量限制，这将不可避免地需要在交换节点和更大的交换机之间使用多条并行光纤。开关缩放问题的一个解决方案是将一些波长或频隙捆绑在一起，并将它们作为一个频带进行交换。然而，目前的方法是不够的，因为技术的进步已经使一些研究过时或引入了以前从未尝试过的新问题。这个美日联合项目的目标是开发新的可扩展的、具有成本效益的多粒度交换节点体系结构，并开发高效的算法来为应用提供带宽。扩展架构通常会带来某种形式的惩罚，例如网络运营商必须遵守的供应限制。该项目旨在确定哪些功能可在不过度限制网络运营商的情况下最大限度地降低成本并提高可扩展性？灵活性。这些架构和算法将通过理论分析、模拟和小规模实验进行评估。通过瞄准光网络成本的一个重要组成部分，该项目将使所有人能够更快地采用光基础设施和使用高速网络。