NeTS: Small: WaveCube: A Scalable, Fault-Tolerant, High-Performance Optical Data Center Architecture

NeTS：小型：WaveCube：可扩展、容错、高性能光数据中心架构

• 批准号: 1219116
• 负责人: Yan Chen
• 金额: $ 40万
• 依托单位: Northwestern University
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2012
• 资助国家: 美国
• 起止时间: 2012-08-01 至 2015-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=1219116&HistoricalAwards=false
• 关键词: NeTS; Small; WaveCube; Scalable; Fault

There are two approaches to preventing localized bottlenecks in datacenter networks: 1) building an over-provisioned network capable of supporting worse-case dataflows, or 2) providing rapid (microseconds to millisecond) on-demand provisioning of links, usually optical, between communication hotspots in the datacenter. This projects studies and prototypes the second approach via a novel interconnect design for datacenter networks (DCNs) with good fault-tolerance and scalability features, termed WaveCube. In particular, optical wavelength selective switch (WSS) technology is used to achieve cost savings while implementing multipathing and dynamic bandwidth scheduling for improved performance. The WaveCube topology is a multi-dimension cube with fiber carrying multiple wavelengths (Wavelength Division Multiplexing or WDM). WDM dramatically cuts down on the number of fibers needed in a datacenter but gives rise to a wavelength assignment problem. Thus the project will study wavelength assignment algorithms needed to provide connections via multiple WSSs taking into account fault-tolerance and performance. The project will compare WaveCube wiring complexity to that of other suggested approaches. The project will also study the performance of WaveCube-based data centers under a variety of processing loads, some derived from actual measurements and some synthetic.Broader Impact:The PI will create undergraduate datacenter networking courses. The PI also describes a plan to increase participation of underrepresented minorities and women in the proposed research activities and had previous demonstrations of such outreach via work with programs such as AGEP, REU, CRA CREW. The PI's are collaborating with an industrial organization.

有两种方法可以防止数据中心网络中的局部瓶颈：1)建立能够支持更坏情况的数据流的过度配置的网络，或者2)在数据中心的通信热点之间提供快速(微秒到毫秒)按需配置的链路，通常是光纤链路。本项目通过一种新的数据中心网络互连设计(DCNS)来研究和原型第二种方法，该设计具有良好的容错性和可扩展性，称为WaveCube。特别是，在实施多路径和动态带宽调度以提高性能的同时，使用光波长选择交换(WSS)技术来实现成本节约。WaveCube拓扑是一个多维立方体，带有传输多个波长的光纤(波分复用或WDM)。WDM极大地减少了数据中心所需的光纤数量，但也带来了波长分配问题。因此，该项目将研究通过多个WSS提供连接所需的波长分配算法，并考虑容错和性能。该项目将对WaveCube布线的复杂性与其他建议的方法进行比较。该项目还将研究基于WaveCube的数据中心在各种处理负载下的性能，其中一些来自实际测量，一些来自合成。广泛的影响：PI将开设本科生数据中心网络课程。国际和平协会还介绍了一项计划，以增加代表不足的少数群体和妇女参与拟议的研究活动，并通过与AGEP、REU、CRA Crew等方案合作，以前展示了这种推广。私家侦探正在与一家工业组织合作。