Quality of Service (QoS) Router Architectures for Cluster Interconnects

用于集群互连的服务质量 (QoS) 路由器架构

• 批准号: 9970720
• 负责人: Sudhakar Yalamanchili
• 金额: $ 11.96万
• 依托单位: Georgia Tech Research Corporation
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1999
• 资助国家: 美国
• 起止时间: 1999-09-01 至 2002-08-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9970720&HistoricalAwards=false
• 关键词: Quality; Service; QoS; Router; Architectures

Increasingly, cluster and LAN interconnection networks are being called upon to support distributed access to multimedia data sets with quality of service (QoS) guarantees. The objective of this research is to develop effective architectural solutions that enable QoS guarantees for multimedia traffic in cluster/LAN interconnection networks. The core challenge of the research work is to develop effective high speed QoS schedulers capable of making decisions across a large number of multimedia connections in tens of nanoseconds: QoS scheduling decisions at cut-through latencies. These objectives will be pursued by the design and detailed simulation of the architecture of a single-chip router optimized for multimedia applications. The innovative aspects of the router architecture concern a novel priority biasing scheme and the use of flow controlfor dynamic bandwidth allocation. Around these techniques are constructed new buffering, bandwidth allocation, and flow control schemes. Important research contributions of the program will include (i) router architectures that support QoS scheduling at cut-though latencies, (ii) understanding of effective architectural techniques for constructing high speed schedulers, and (ii) solutions to difficult problems of high speed hardware resource management and scheduling.

越来越多的集群和 LAN 互连网络被要求支持对多媒体数据集的分布式访问并提供服务质量 (QoS) 保证。本研究的目的是开发有效的架构解决方案，为集群/LAN 互连网络中的多媒体流量提供 QoS 保证。研究工作的核心挑战是开发有效的高速 QoS 调度器，能够在数十纳秒内对大量多媒体连接做出决策：在直通延迟下做出 QoS 调度决策。这些目标将通过针对多媒体应用优化的单芯片路由器架构的设计和详细仿真来实现。路由器架构的创新方面涉及新颖的优先级偏置方案以及使用流量控制进行动态带宽分配。围绕这些技术构建了新的缓冲、带宽分配和流量控制方案。该计划的重要研究贡献将包括 (i) 支持直通延迟的 QoS 调度的路由器架构，(ii) 了解构建高速调度器的有效架构技术，以及 (ii) 高速硬件资源难题的解决方案管理和调度。