共查询到20条相似文献,搜索用时 140 毫秒
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网络处理器是下一代网络的关键技术,基于IXP2400的路由器设计正是这一技术的体现,首先介绍IXP2400处理器的性能结构和主要组成部分的功能,然后阐述了基于IXP2400网络处理器的IPv6路由器设计的方案,并着重描述了IPv6路由器数据平面的实现及系统资源分配策略。 相似文献
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《电信技术》2003,(3)
新年伊始,友讯网络(D-Link)在国内推出了全面支持传统和新一代服务的DES-9000城域网核心交换式路由器和提供高性能线速路由及交换功能的DES-8000/8100城域网汇聚交换式路由器。这几款路由器支持各类标准的Internet路由交换协议,包括ATM、BGP-4、IS-IS、MPLS、OSPF和RIPv1/v2等,保证了与Internet和城域网核心路由器的互联互通。为了保证转发速度,DES-9000/8000/8100均采用基于ASCI(专用集成芯片)的分组处理器,每端口都可实现L2/L3/L4线速交换,可以同时提供极高的端口密度以及线速路由和交换功能,其中DES-9000的… 相似文献
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文章主要是在深入研究IPV6协议规范和网络处理器基本原理的基础上,提出了一种基于IXP2400网络处理器的支持IPV4/V6双协议栈路由器慢通道数据处理的设计和实现方案。 相似文献
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介绍了因特网传统软件IP路由器的局限性和由此基础上发展而来的高性能线速路由器的概念和设计思路,以及20世纪末以来IT业界从传统路由器向线速路由器跨越所经历的各个阶段,并对当前流行的几种线速路由器的设计思路和各自代表产品的特点性能进行了分析比较,其中包括吉位交换路由器、吉位线速路由交换机以及太位交换路由器等。最后探讨了下一代线速路由器的发展趋势,即开发采用开放式和可编程结构的新一代包处理器。 相似文献
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This paper describes a high-speed six-port router component with a sustainable I/O bandwidth in excess of 30 GB/s. The device uses three distinct clock domains to connect low-speed processor and I/O nodes to a high-speed switch fabric capable of data rates of up to 6.4 Gb/s per wire on copper system interconnects. The router component is fabricated in 0.18-μm bulk CMOS technology. The 100-mm2 device contains approximately 6.6 million transistors and consumes 21 W at a link transfer rate of 3.2 Gb/s and a supply voltage of 1.75 V. Integrated on a single component, the router core and the simultaneous bidirectional links form a building block useful in the realization of large high-bandwidth multiprocessor systems 相似文献
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Scalable multi-QoS IP+ATM switch router architecture 总被引:2,自引:0,他引:2
Shiomoto K. Uga M. Omotani M. Shimizu S. Chimaru T. 《Communications Magazine, IEEE》2000,38(12):86-92
This article proposes a scalable multi-QoS IP+ATM switch router architecture. The proposed switch router is based on a core ATM switching system with multi-QoS capability. Forwarding engines and a routing engine are attached in front of the line cards of the ATM switching system. The FEs and RE are interconnected with each other via internal VCs. A novel longest matching algorithm is employed at the FE to achieve packet forwarding at wire-speed of OC-12c rate (622.08 Mb/s). Wire-speed unicast and multicast packet forwarding are performed using point-to-point and point-to-multipoint VCs in a unified way. Because FEs and RE are decoupled from the base ATM switching system, the full spectrum of ATM QoS capability is nicely applied for IP QoS control with a packet classification at the edge of the network. The core switching fabric is scalable from 40 to 160 Gb/s capacity (371 MPPS in terms of packet forwarding throughput). Feedback rate control is employed at each line card to eliminate congestion in the high-speed core switching fabric even with a small amount of buffer. 相似文献
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为了降低片上网络(NoC)由于虫孔缓冲结构排头(HoL)阻塞导致的性能损失,同时消除虚通道缓冲结构对可变长度报文表现出的缓冲区低利用率现象,本文采用虚拟通道技术提出一种动态分配输入队列(DAIQ)的片上虫孔路由器结构.该结构采用一种令牌表的方式支持虚拟队列深度与数量的动态分配,同时为了支持同一报文微片能够连续调度,本文还提出一种新颖的开关分配机制——SRRM,该机制在高负载下进一步改善了开关的延迟与吞吐率.仿真与综合的结果表明,相比传统虚通道流控的片上路由器结构,DAIQ路由器以50%的缓冲面积获得类似的性能,在0.13微米CMOS工艺下节约了30.18%的标准单元面积与384%的功耗. 相似文献
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目前基于单级交换结构(single-stage switch)集中式调度的路由器已经不能满足Internet网络流量、网络规模和上层应用的快速发展.近年来,旨在提高路由器可扩展性、吞吐率、QoS能力的高性能交换技术,成为路由器技术研究中的一大热点.文章从体系结构、调度策略、QoS特性三个方面对高性能交换结构研究进展进行了综述,以可扩展性、实现复杂度、延迟和吞吐率保证、负载均衡及报文乱序为主要衡量指标分析比较了每一类交换结构调度算法的性能,最后提出下一步的研究课题和思路. 相似文献
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IP switching and gigabit routers 总被引:5,自引:0,他引:5
To cope with the growth in the Internet and corporate IP networks, we require IP routers capable of much higher performance than is possible with existing architectures. This article examines two approaches to the design of a high-performance router, the gigabit router and the IP switch, and then provides some detail on the implementation of an IP switch and the protocols associated with IP switching 相似文献