VxWorks环境下基于TCP/IP协议的多网卡数据传输与双网卡冗余设计  

The design of multi-network card communication provided with a dual-redundance network card based on the TCP/IP protocol & VxWorks

作　　者：刘锡祥[1] 徐晓苏[1] 刘建娟[1] 冯丹琼[1] 

机构地区：[1]东南大学仪器科学与工程系,江苏南京210096

出　　处：《工业仪表与自动化装置》2006年第3期30-32,共3页Industrial Instrumentation & Automation

摘　　要：利用实时操作系统VxW orks提供的标准socket接口和多任务机制,实现了基于TCP/IP协议的多网卡数据通讯;在应用程序中通过对网卡的动态添加删减,实现了双网卡共享IP和物理地址的冗余备份。介绍了在VxW orks环境下,PC-104寄生网卡82559与双NE2000的多网卡数据传输和双NE2000网卡的冗余备份。在应用程序中实现对冗余网卡驱动的添加删减,避免了对BSP底层驱动的二次开发,缩短了开发周期和费用,具有较强的实用价值。By meanssof a standard socket and and the multi-task method of VxWorks, the multi-network card communication based on the TCP/IP protocol is realized. The method of adding and deleting a network card dynamically in a program can bring about a dual-redundance net, which uses the same IP and physical address. The paper gives an example, in which both 82559 and NE2000 are used to realize the multi-net communication and the dual-redundance backup of the dual NE2000 network card. The said method is of highly practical value, which avoids the second development of a board packet, thus reducing the developing period and cost.

关 键 词：嵌入式实时操作系统 VXWORKS TCP/IP PC-104 NE2000网卡 

分 类 号：TP393.02[自动化与计算机技术—计算机应用技术]