| ATM主干网环境下的局域网互连技术 |
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| 引用本文： | 黄海明,诸鸿文.ATM主干网环境下的局域网互连技术[J].上海交通大学学报,1998,32(6):140-144. |
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| 作者姓名： | 黄海明 诸鸿文 |
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| 作者单位： | 上海交通大学电子工程系 |
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| 基金项目： | 高等学校博士学科点专项科研基金 |
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| 摘 要： | 通过对现有的三类在ＡＴＭ主干网络环境中局域网互连的技术——局域网仿真、ＩＰＯｖｅｒＡＴＭ和ＭＰＯＡ进行分析和比较，给出了它们在具体应用上的特点，由此给出第三层交换技术的实现原理．通过对现有产品技术的比较，指出了第三层交换技术的关键．由于路由器在高速网络环境下的瓶颈效应十分明显，因此在ＡＴＭ网络环境下应尽量避免使用．ＭＰＯＡ将路由功能从传统的路由器中分类出来，独立用硬件进行实现，从而大大减少了由此引起的性能下降．目前，第三层交换技术采用了同样的技术路线，用于提高网络的整体性能．
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| 关 键 词： | 局域网仿真 MPOA IPOverATM I－PNNI |
LAN Internetworking in ATM Backbone |
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| Huang Haiming,Zhu Hongwen,Gu Shangjie.LAN Internetworking in ATM Backbone[J].Journal of Shanghai Jiaotong University,1998,32(6):140-144. |
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| Authors: | Huang Haiming Zhu Hongwen Gu Shangjie |
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| Institution: | Huang Haiming,Zhu Hongwen,Gu Shangjie Department of Electronic Engineering,Shanghai Jiaotong University,China |
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| Abstract: | This paper analyzes advantages and disadvantages in LAN internetworking applications by comparing the three available techniques such as LAN emulation, IP Over ATM and MPOA. The essential technique in lay 3 switching is also discussed by analysis of the current implementations based on this technique. As router is one of the bottlenecks in LAN internetworking, we should avoid using router in ATM backbone environment. By dividing the routing function from router and implementing it with hardware, MPOA provides a better performance in LAN internetworking applications and so does the layer 3 switching technique. |
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| Keywords: | LAN emulation MPOA IP Over ATM I PNNI |
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