BFD协议作为一种双向转发检测机制,可以提高故障检测速度,为链路间故障快速修复提供保障.为了在IPRAN路由设备传输实时业务时,能够对相邻设备间通信故障进行快速检测,并对检测到的故障迅速修复,本文设计讨论一种基于BFD和路由协议间联动机制,应用BFD双向转发检测功能,实现主备路由毫秒级的快速切换,从而快速修复网络故障,提高IPRAN组网的可靠性.%BFD( Bidirectional Forwarding Detection) protocol is a mechanism which can improve the rate of detecting trouble and provide a guarantee for quickly repairing trouble among links. In order to quickly detect the trouble of adjacent devices and repair the faults while transmitting real-time traffic in IPRAN routing device, this paper discusses a mechanism between BFD and routing protocols, which deploys BFD to realize fast switching between master and backup routing in milliseconds, and repairs the net-work problems, improves the reliability of IPRAN network.
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