计算机科学 ›› 2014, Vol. 41 ›› Issue (5): 97-101.doi: 10.11896/j.issn.1002-137X.2014.05.021
王一茗,张可,陈龙
WANG Yi-ming,ZHANG Ke and CHEN Long
摘要： 提出了一种高可靠可控双冗余以太网架构方案,其通过在两个网卡上发送内容相同的数据包,防止出现网络丢包时的信息丢失。在以太网的用户数据头部添加帧冗余标签用于标识冗余和非冗余数据以及区别冗余数据的不同帧,当网络出现故障时,可以达到零故障恢复时间。引入网络诊断功能,通过节点间的软件收发和处理诊断相关的UDP报文来判断网络是否出现故障,并及时记录。通过Winsock SPI和API实现网络的冗余通信和诊断功能,以保持对应用层网络程序透明,同时又保证网络的高可靠性和可用性。实验表明,在局域网内可以容忍多个不同节点到交换机的故障,增加网络发送的数据量,以实现较高的容错率。
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