2022年第46卷第12期149CommunicationElectroacousticS通信电声通信电声文献引用格式:季冬冬,于松民,李强.基于BFD的冗余链路IP组播传输的快速重路由实现[J].电声技术,2022,46(12):149-152.JIDD,YUSM,LIQ.FastreroutingofredundantlinkIPmulticasttransmissionbasedonBFD[J].AudioEngineering,2022,46(12):149-152.中图分类号:TM73文献标识码:ADOI:10.16311/j.audioe.2022.12.037基于BFD的冗余链路IP组播传输的快速重路由实现季冬冬,于松民,李强(中国卫星海上测控部,江苏江阴214431)摘要:企业网络作为数据传输的主干链路,实时传输着各类关键数据。提高企业网络的链路稳定性和快速恢复能力具有重要意义。为此,研究通过双向转发检测(BidirectionalForwardingDetection,BFD)实现企业网络主干链路单链路出现问题后的快速重路由方法,并通过华为的eNSP网络拓扑模拟软件进行实验验证。实验结果表明,配置BFD,可实现主干链路上转发路径由故障链路自动切换至正常链路的快速重路由。关键词:双向转发检测(BFD);快速重路由;企业网络FastReroutingofRedundantLinkIPMulticastTransmissionBasedonBFDJIDongdong,YUSongmin,LIQiang(ChinaSatelliteMaritimeTT&CDepartment,Jiangyin214431,China)Abstract:Asthebackbonelinkofdatatransmission,theenterprisenetworktransmitsallkindsofkeydatainrealtime.Itisofgreatsignificancetoimprovethelinkstabilityandfastrecoverycapabilityoftheenterprisenetwork.ThispapermainlystudiesthemethodoffastreroutingafterthesinglelinkofthebackbonelinkoftheenterprisenetworkhasproblemsthroughBidirectionalForwardingDetection(BFD),anditisverifiedbyexperimentswithHuawei’seNSPnetworktopologysimulationsoftware.TheexperimentalresultsshowthatbyconfiguringBFD,thefastreroutingoftheforwardingpathonthebackbonelinkcanberealizedautomaticallyfromthefailedlinktothenormallink.Keywords:BidirectionalForwardingDetection(BFD);fastrerouting;enterprisenetwork0引言随着IP网络的快速发展,越来越多的企业依托于IP网络处理日常业务,对于业务承载IP网络的可靠性及稳定性需求越来越高。假如因为某条链路或者某台设备的故障导致业务停止传输,对于企业将造成巨大的影响和损失。因此,IP网络的稳定、可靠运行,几乎成为企业正常运作的第一要素。但IP网络的设计原则是尽力而为...