A solution for handling hybrid traffic in clustered environments: the MultiMedia Router MMR

María Blanca Caminero, C. Carrión, F. Quiles, J. Duato, S. Yalamanchili
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引用次数: 3

Abstract

The primary objective of the MultiMedia Router (MMR) project is the design and implementation of a compact router optimized for multimedia applications. The router is targeted for use in cluster and LAN interconnection networks, which offer different constraints and therefore differing router solutions than WANs. One of the key elements within the router are the algorithms used to decide the forwarding order of the information that traverses it: the link and switch scheduling algorithms. They help greatly to determine the QoS guarantees delivered to the application flows. Also, conventional best-effort traffic should be seamlessly integrated by scheduling algorithms, in such a way that link bandwidth is efficiently used, but without degrading the QoS guarantees of the multimedia connections. In this paper, two solutions for switch scheduling are thoroughly evaluated with mixed workloads (i.e., composed of multimedia and best-effort traffic), and their is performance compared to another well-known approach for switch scheduling, that does not consider QoS requirements when performing scheduling decisions. Results show that, when a QoS-aware switch scheduler is used, the QoS received by the multimedia flows is not affected by the presence of best-effort traffic.
在集群环境中处理混合流量的解决方案:多媒体路由器MMR
多媒体路由器(MMR)项目的主要目标是为多媒体应用优化设计和实现一个紧凑的路由器。路由器的目标是在集群和局域网互连网络中使用,这些网络提供不同的限制,因此与广域网不同的路由器解决方案。路由器中的关键要素之一是用于决定穿越它的信息的转发顺序的算法:链路和交换机调度算法。它们极大地帮助确定交付给应用程序流的QoS保证。此外,应该通过调度算法无缝地集成传统的“尽最大努力”流量,以便有效地利用链路带宽,但不会降低多媒体连接的QoS保证。在本文中,对交换机调度的两种解决方案进行了混合工作负载(即,由多媒体和尽力而为的流量组成)的全面评估,并将其性能与另一种众所周知的交换机调度方法进行了比较,该方法在执行调度决策时不考虑QoS要求。结果表明,当使用QoS感知交换调度器时,多媒体流接收到的QoS不受尽力而为流量的影响。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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