Design of Intelligent Dual-Redundance NIC in VxWorks
Xiaosu Xu · 2009
The function requirement of double redundant Network Interface Card(NIC) is analyzed and an intelligent dual-redundance NIC is designed.Whether the NIC should be active shift is decided by the link state of NIC and the reliability and stability of network.And based on the characteristics of UDP protocol and in order to improve the stability of communication,the NIC should be passive shift according to the changes of target communication node.Test result shows that the method is reliable and the shift time is shortened to millisecond grade.