在路由器上配置Track-實(shí)現(xiàn)靜態(tài)路由器的冗余

在路由器上配置Track，實(shí)現(xiàn)靜態(tài)路由器的冗余一、本文目的靜態(tài)路由+Track，實(shí)現(xiàn)路由的冗余切換二、技術(shù)簡介靜態(tài)路由：管理員手工填寫，管理距離為1或0(靜態(tài)路由下一跳為接口的狀況下)Track：追蹤技術(shù)IPSLA:IP服務(wù)等級，通過該技術(shù)測試網(wǎng)絡(luò)連通性三、試驗(yàn)環(huán)境模擬器：GNS3路由器四、網(wǎng)絡(luò)拓?fù)湮?、環(huán)境要求①.在路由器訪問對端lo1接口默認(rèn)走上面的鏈路，當(dāng)上面的鏈路出問題時，切換到下面的鏈路②.在路由器訪問對端lo2接口默認(rèn)走下面的鏈路，當(dāng)下面的鏈路出問題時，切換到上面的鏈路六、網(wǎng)絡(luò)配置R1：track1rtr1reachability//跟蹤路由牢靠性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?yàn)槁酚善鲿x擇備份的路由iproute10.70.2.0255.255.255.0172.20.0.30track2iproute10.70.1.0255.255.255.0172.20.0.3010//配置管理距離為10，使該路由作為備份路由，當(dāng)track的主路由失敗后，則選擇這個路由iproute10.70.2.0255.255.255.0172.20.0.1810ipsla1//配置SLA，依據(jù)icmp來推斷鏈路是否牢靠icmp-echo172.20.0.18source-ipipslaschedule1lifeforeverstart-timenow//配置schedule,是SLA馬上生效，有效期為恒久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、驗(yàn)證R2#shotrackbriefTrackObjectParameterValueLastChange1rtr1reachabilityUp00:00:372rtr2reachabilityUp01:10:57R2#shotrackTrack1ResponseTimeReporter1reachabilityReachabilityisUp8changes,lastchange00:01:58Latestoperationreturncode:OKLatestRTT(millisecs)32Trackedby:STATIC-IP-ROUTING0Track2ResponseTimeReporter2reachabilityReachabilityisUp8changes,lastchange01:12:18Latestoperationreturnco