在路由器上配置Track-实现静态路由器的冗余

在路由器上配置Track，实现静态路由器的冗余一、本文目的静态路由+Track，实现路由的冗余切换二、技术简介静态路由：管理员手工填写，管理距离为1或0(静态路由下一跳为接口的状况下)Track：追踪技术IPSLA:IP服务等级，通过该技术测试网络连通性三、试验环境模拟器：GNS3路由器四、网络拓扑五、环境要求①.在路由器访问对端lo1接口默认走上面的链路，当上面的链路出问题时，切换到下面的链路②.在路由器访问对端lo2接口默认走下面的链路，当下面的链路出问题时，切换到上面的链路六、网络配置R1：track1rtr1reachability//跟踪路由牢靠性track2rtr2reachabilityinterfaceLoopback1interfaceLoopback25.interfaceFastEthernet0/0interfaceFastEthernet0/1iproute10.70.1.0255.255.255.0172.20.0.18track1//在此路由后面跟track，假如trackdown了，此路由失效，因为路由器会选择备份的路由iproute10.70.2.0255.255.255.0172.20.0.30track2iproute10.70.1.0255.255.255.0172.20.0.3010//配置管理距离为10，使该路由作为备份路由，当track的主路由失败后，则选择这个路由iproute10.70.2.0255.255.255.0172.20.0.1810ipsla1//配置SLA，依据icmp来推断链路是否牢靠icmp-echo172.20.0.18source-ipipslaschedule1lifeforeverstart-timenow//配置schedule,是SLA马上生效，有效期为恒久ipsla2icmp-echo172.20.0.30source-interfaceFastEthernet0/1ipslaschedule2lifeforeverstart-timenowR2：track1rtr1reachabilitytrack2rtr2reachabilityinterfaceLoopback1interfaceLoopback2interfaceFastEthernet0/0interfaceFastEthernet0/1iproute10.80.1.0255.255.255.0172.20.0.17track1iproute10.80.2.0255.255.255.0172.20.0.29track2iproute10.80.1.0255.255.255.0172.20.0.2910iproute10.80.2.0255.255.255.0172.20.0.1710ipsla1ipslaschedule1lifeforeverstart-timenowipsla2icmp-echo172.20.0.29source-interfaceFastEthernet0/1ipslaschedule2lifeforeverstart-timenow七、验证R2#shotrackbriefTrackObjectParameterValueLastChange1rtr1reachabilityUp00:00:372rtr2reachabilityUp01:10:57R2#shotrackTrack1ResponseTimeReporter1reachabilityReachabilityisUp8changes,lastchange00:01:58Latestoperationreturncode:OKLatestRTT(millisecs)32Trackedby:STATIC-IP-ROUTING0Track2ResponseTimeReporter2reachabilityReachabilityisUp8changes,lastchange01:12:18Latestoperationreturnco