基于嵌入式Linux可扩展路由器的设计

Design of Extensible Router Based on Embedded Linux

基于嵌入式Linux可扩展路由器硬件结构由X86平台、控制台、双启动U盘、以太网口、串行口组成。对硬件平台、接口和外设驱动程序以及路由新特性的支持,采用Linuxkernel2.4或更高版本。路由功能利用源代码开放软件Zebra实现。控制台主控界面用CISH实现,前台为用户提供模拟路由器操作系统界面,后台通过参数传递与Linux系统内相关命令相连。

Extensible router based on embedded Linux is made up of X86 platform, console, double start-up U disk, Ethernet cards and serial cards. Linux kernel (Release 2.4 or later) is used in the system to support the hardware platform and the interfaces and the I/O drivers. The routing functions, which are customized in on-demand, are implemented by open source Zebra. Main interface of the console is realized by CISH, and it offers users the operating system interface and its background procedures are associated with the particular commands of Linux kernel through transfering the parameters.