The article introduces the basic principle of the redundancy of two network ports in one network card, the function of dominant chips which are integrated on the card, the hardware and software implementation of redundancy and the demand of PCB.
介绍了双网口冗余模块的基本原理，模块中主要芯片的功能，冗余部分的硬件设计描述及冗余软件的实现，最后对模块的布线提出了要求。
参考来源 - 双网口冗余模块的设计 in C·2,447,543篇论文数据，部分数据来源于NoteExpress
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