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

光网络已经从国家骨干网扩展到城域网和客户接入网，并正在进入数据中心。由于两个领域的巨大进步，这已经成为可能：光交换技术，包括可重构光加丢多路复用器和波长选择开关的发展；高效的传输方式，为应用提供灵活的弹性带宽。然而，由于光纤容量的基本限制，在交换节点和大型交换机之间不可避免地需要多条平行光纤。解决开关缩放问题的一种方法是将一些波长或频率槽捆绑在一起，并将它们作为一个频带进行切换。然而，目前的方法是不够的，因为技术进步已经使一些研究过时，或者引入了以前没有尝试过的新问题。这个美日联合项目的目标是开发新颖的可扩展和经济高效的多粒度交换节点架构，并开发有效的算法来为应用程序提供带宽。扩展体系结构通常会引入某种形式的惩罚，例如网络运营商必须遵守的供应约束。该项目旨在确定哪些特性在不过度限制网络运营商的情况下最大程度地降低了成本并增加了可扩展性。的灵活性。架构和算法将使用理论分析，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，该项目将使光基础设施的更快采用和所有高速网络的可用性成为可能。

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.