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某数据传输网络系统中,为提高网络通信具备高可靠性,引入了冗余网络架构,其中双网卡冗余是该系统的核心,因此如何设计一种及时且准确的探测机制来发现通信故障,这是能否实现主备网卡切换的关键。通过在TCP/IP协议下设计并实现了一种基于心跳探测的双网卡冗余技术,实现了主备网卡的及时切换,并进行了大量的数据通信测试,测试结果表明,该技术满足系统冗余通信要求。
In a data transmission network system, in order to improve the reliability of network communication, a redundant network architecture is introduced, in which dual NIC redundancy is the core of the system. Therefore, how to design a timely and accurate detection mechanism to discover communication failures, This is the key to whether to achieve the switch between the primary and backup network card. Through the design and implementation of a dual card redundancy technology based on heartbeat detection under the TCP / IP protocol, the active and standby NICs are switched in time and a large number of data communication tests are conducted. The test results show that the technology meets the requirements of system redundancy I communication requirements.