在路由器上配置Track,實現(xiàn)靜態(tài)路由器的冗余

1、f0/0 m. 20.0.JM8 fD/QR2 lo2dO.Tij.1在路由器上配置Track，實現(xiàn)靜態(tài)路由器的冗余一、本文目的靜態(tài)路由+Track，實現(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 為接口的情況下）Track :追蹤技術(shù)IP SLA:IP服務(wù)等級，通過該技術(shù)測試網(wǎng)絡(luò)連通性三、實驗環(huán)境模擬器：GNS3路由器：un zip-c3725-adve nterprisek9-m z.124-15.T5.bi n四、網(wǎng)絡(luò)拓?fù)鋖ol: IB. 70.1.1fB/1五、環(huán)境要求 .在路由器訪問對端101接口默認(rèn)走上面的鏈路，當(dāng)上面的鏈路 出問題時，切換

2、到下面的鏈路 .在路由器訪問對端Io2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：track 1 rtr 1 reachability /跟蹤路由可靠性track 2 rtr 2 reachabilityinterface Loopback1ip address interface Loopback2ip address 255.255.255.interface FastEthernet0/0ip address 7 52interface Fa

3、stEthernet0/1ip address 9 52ip route 8 track 1 在/ 此路由后 面跟track,如果trackdown 了，此路由失效，因為路由器會選擇備份 的路由ip route 0 track 2ip route 0 10 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

4、路由ip route 8 10ip sla 1 /配置 SLA ，根據(jù) icmp 來判斷鏈路是否可靠icmp-echo 8 source-ip 7ip sla schedule 1 life forever start-time now /配置 schedule是 SLA立即生效，有效期為永遠(yuǎn)ip sla 2icmp-echo 0 source-interface FastEthernet0/1ip sla schedule 2 life forever start-

5、time nowR2：track 1 rtr 1 reachabilitytrack 2 rtr 2 reachabilityinterface Loopback1ip address interface Loopback2ip address interface FastEthernet0/0ip address 8 52interface FastEthernet0/1ip address 0 52ip ro

6、ute 7 track 1ip route 9 track 2ip route 9 10ip route 7 10ip sla 1icmp-echo 7 source-ip 8ip sla schedule 1 life forever start-time nowip sla 2icm

7、p-echo 9 source-interface FastEthernet0/1ip sla schedule 2 life forever start-time now七、驗證R2#sho track briefTrack Object Parameter Value Last Change1 rtr 1 reachability Up 00:00:372 rtr 2 reachability Up 01:10:57R2#sho trackTrack 1Response Time Reporter 1 reachabilityReachability is Up8 ch

8、anges, last change 00:01:58Latest operation return code: OKLatest RTT (millisecs) 32Tracked by:STATIC-IP-ROUTING 0Track 2Response Time Reporter 2 reachabilityReachability is Up8 changes, last change 01:12:18Latest operatio n retur n code: OKLatest RTT (millisecs) 20Tracked by:STATIC-IP-ROUTING 0可以在R

9、1在配置deny ACL測試（具體操作不在表述）,測試結(jié)果如下:IIIIIIIIIHIIHIIHIIMIIIIIII1IIIIIIIIIIIIIMIIHIUIIIIIIHIIIIIIIII u *1 I rmi i I I i I I i I I a i ,u i n i i i i 11 i i r i r n i n *in tiiiiiiiRiiiiiiRiiiHi|iiiiiiiiiiiiiiiiiiiiiiiiniiiiiiiiiiiiiriitiiuii HiiiiiMMiiiMiHniiininiiiHiii ! n n a ran u n b% 1 眛粗;IflEl: rnwgTE: 1 rtr 1 readlability 帕血!典出I!11 III I" IIIII Hl IIII II III Hl "I III ill III MINI IIM III II Ul IIF I