| 路由器软硬件转发表同步的设计与Linux实现 |
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| 引用本文： | 杜旭,杨明,周宗照.路由器软硬件转发表同步的设计与Linux实现[J].计算机应用研究,2004,21(10):223-224,222. |
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| 作者姓名： | 杜旭 杨明 周宗照 |
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| 作者单位： | 华中科技大学,电子与信息工程系,湖北,武汉,430074 |
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| 基金项目： | 国家自然科学基金资助项目(60202005) |
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| 摘 要： | 路由表的实现是路由器软件的核心，而硬件转发表的维护则是硬件高速转发的关键。在分析路由表与转发表同步模块接口与功能的基础上，充分利用Linux虚拟网络设备和BSD套接字扩展机制的优势与特点，提出了一种在Linux下完成两者同步的新思路。该总体方案及实现已应用于国际合作项目高速宽带路由器的研制与开发中。
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| 关 键 词： | 路由表 转发表 模块 Linux 套接字 |
| 文章编号： | 1001-3695(2004)10-0223-02 |
Design and Implementation of Synchronization between Routing Table and Hardware Forwarding Table Based on Linux High-End-Router |
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| DU Xu,YANG Ming,ZHOU Zong- zhao.Design and Implementation of Synchronization between Routing Table and Hardware Forwarding Table Based on Linux High-End-Router[J].Application Research of Computers,2004,21(10):223-224,222. |
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| Authors: | DU Xu YANG Ming ZHOU Zong- zhao |
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| Abstract: | An implementation of routing table is the core of a router's software,and maintenance of hardware forwarding table is the key to hardware high-speed forwarding.This paper brings forward a design solution of synchronization between routing table and hardware forwarding table on Linux OS,based on making use of Linux extension mechanism.The concepts of virtual network device and BSD socket extended mechanism in kernel space not only inherits the characteristics of high efficiency and extensibility of Linux OS,but also alleviates the difficulty of passing data between kernel space and user space. |
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| Keywords: | Routing Table Forwarding Table Module Linux Socket |
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