WAN路由器备份链路的设计与实现

Spare link design and realization of WAN routers

阐述了广域网链路之一—— DDR的工作原理 ,提出了一种设计思路并且加以实现 ,并说明了配置文件、拨号过程跟踪和链路速率检测的工作过程。该方法具有较好的实用性 。

In this paper,the DDR working principle of router as a spare link establishment between routers of WAN is expatriated, a possible design, realization of the DDR , the whole work process are given and some relavent aspects are dealt with. The authors conclude that this approach can be used in some WAN links due to its p racticability.