Quality of Service (QoS) Provisioning in InfiniBand Architecture for System Area Networks

InfiniBand体系结构(IBA)被设想为未来系统区域网络(SAN)或集群的默认通信基础设施。IBA规范的第一个版本概述了在IBA中提供服务质量以支持实时应用程序的重要性。这项研究解决了设计支持服务质量的IBA交换矩阵的五个相互交织的问题。首先，我们将对交换机/路由器、网络接口卡和各种网络拓扑进行设计和分析，以在SAN中提供高且可预测的性能。其次，我们将提出有效的拥塞避免技术来应对网络饱和。接下来，我们将研究IBA交换机的高效组播机制。第四，我们将实施容错技术，使服务质量支持对链路和交换机故障具有健壮性。该研究将与Intel公司合作，将有以下贡献：(I)将提出高效的交换网络体系结构和网卡设计来实现支持服务质量的IBA结构；(Ii)上述五个领域的研究将为满足端到端的服务质量要求提供新的解决方案，并将促进新的想法；以及(Iii)该仿真平台可以作为未来开展IBA研究的有效工具。

The InfiniBand Architecture (IBA) is envisioned to be the default communication infrastructure forfuture System Area Networks (SANs) or clusters. The first release of the IBA specification outlines the importance of QoS provisioning in IBA to support real-time applications. The proposed research addresses five intertwined issues for designing QoS-capable IBA fabrics.First, we will perform design and analysis of switches/routers, network interface cards, and various network topologies to provide high and predictable performance in SANs. Second, we will propose efficient congestion avoidance techniques to handle network saturation. Next, efficient multicasting mechanisms for IBA switches will be investigated. Fourth, we will implement fault-tolerant techniques to make the QoS support robust to link and switch failures. Finally, a comprehensive simulation testbed for IBA SANs will be developed integrating these designs.The research, planned to be conducted in collaboration with Intel, will have the following contributions:(i) Efficient switched network architectures and NIC designs will be proposed to implement QoS-capable IBA fabrics; (ii) Research in the above five areas will provide novel solutions to satisfy end-to-end QoS requirements and will foster new ideas; and (iii) The simulation platform can be used as an effectivetool for conducting future research on IBA.