利用隔离模式实现千兆网卡双冗余功能

Utilizing Isolation Mode to Achieve Double-Redundant 1000Mbps Ethernet Adapter

为保证网络系统各终端通信线路具有较高的抗毁性和可靠性,千兆网卡必须提供双冗余功能。介绍了GMⅡ接口,以及采用双通道方案,如何利用PHY芯片的隔离模式来实现千兆网卡的双冗余功能。给出了一个具体设计方案,仿真结果表明,该项设计成果可直接用于军用以太网的升级换代。

In order to guarantee the high survivability and reliability of the communication circuit in all terminals of the network, the 1000Mbps Ethemet adapter must provide double redundancies to meet these requirements. This paper introduces the GMⅡ interface, adopts double channel design, and employs isolation mode for PHY chips to realize double redundancies of 1000Mbps Ethernet adapter. A concrete design scheme is put forward, and it is showed by its simulation that the achievement of this design may be directly applied to upgrade and update the military Ethernet.