Parallel IP packet forwarding for tomorrow's IP routers

2001 IEEE Workshop on High Performance Switching and Routing (IEEE Cat. No.01TH8552) Pub Date : 2001-05-29 DOI:10.1109/HPSR.2001.923660

Jun Wang, Klara Nahrstedt

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引用次数: 13

Abstract

The invention and evolution of the dense wavelength division multiplexing (DWDM) technology has brought a breakthrough to high-speed networks, and it has put a lot of pressure on research in the area of IP router to catch up. Besides, with up-coming quality of service (QoS) requirements raised by a wide range of communication-intensive, real-time multimedia applications, the next-generation IP routers should be QoS-capable. Limited by Moore's law, one possible solution is to introduce parallelism as well as the differentiated service (DiffServ) scheme [5, 11] into the router architecture to provide QoS provision at a high speed and a low cost. We propose a novel architecture called the high-performance QoS-capable IP router (HPQR). We address one key design issue in our architecture-the distribution of IP packets to multiple independent routing agents so that the workload at routing agents is balanced and the packet ordering is preserved. We introduce the enhanced hash-based distributing scheme (EHDS) as the solution. Simulations are carried out to study the effectiveness of EHDS. The results show that EHDS does meet our design goals very well.

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为未来的IP路由器提供并行IP数据包转发

密集波分复用(DWDM)技术的发明和发展给高速网络带来了突破，也给IP路由器领域的研究带来了很大的压力。此外，随着大量通信密集型、实时多媒体应用对服务质量(QoS)的要求不断提高，下一代IP路由器应该具备QoS能力。受摩尔定律的限制，一种可能的解决方案是在路由器架构中引入并行性和差异化服务(DiffServ)方案[5,11]，以高速和低成本提供QoS。我们提出了一种新的架构，称为高性能QoS-capable IP路由器(HPQR)。我们解决了架构中的一个关键设计问题——将IP数据包分发到多个独立的路由代理，从而平衡路由代理的工作负载并保持数据包的顺序。我们引入了增强的基于哈希的分布式方案(EHDS)作为解决方案。通过仿真研究了EHDS的有效性。结果表明，EHDS很好地满足了我们的设计目标。

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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来源期刊

2001 IEEE Workshop on High Performance Switching and Routing (IEEE Cat. No.01TH8552)

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