摘要
铁路数据通信网用户侧设备采用双上行静态路由协议方式接入时,由于接入路由器与用户侧设备间可能存在非直连链路,两侧端口无法准确感知链路变化情况,会导致链路切换无法生效.为此,应用双向转发检测(BFD)技术,可解决非直连链路倒换端口无法感知链路变化问题.
When the user-side device accesses the railway data communication network by means of a dualup link static routing protocol,the link switching does not take effect because there may be a non-direct link between the access router and the user-side device,and the ports on both sides cannot accurately perceive the link changes.Therefore,two-way forwarding detection(BFD)technology is used to solve the problem that non-direct link inverted ports are not aware of link changes.
出处
《铁道通信信号》
2021年第1期51-53,共3页
Railway Signalling & Communication
关键词
铁路
数据通信网
双上行静态路由协议
双向转发检测
Railway
Data communication network
Dual uplink static routing protocol
Twoway forwarding detection(BFD)
