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1、精選優(yōu)質(zhì)文檔-----傾情為你奉上
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)+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)網(wǎng)絡(luò)連通性
三、實驗環(huán)境
模擬器:GNS3
路由器:unzip-c3725-adventerprisek9-mz.124-15.T5.bin
四、網(wǎng)絡(luò)拓撲
五、環(huán)境要求
①.在路由器訪問對端lo1接口默認走上面的鏈路,當上面的鏈路出問
2、題時,切換到下面的鏈路
?、?在路由器訪問對端lo2接口默認走下面的鏈路,當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 reachability
interface Loopback1
ip address 10.80.1.1 255.255.255.0
interface Loopback2
ip address 10.80.2.1 255.255.255.
interface FastEthernet0/0
i
3、p address 172.20.0.17 255.255.255.252
interface FastEthernet0/1
ip address 172.20.0.29 255.255.255.252
ip route 10.70.1.0 255.255.255.0 172.20.0.18 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 10.70.2.0 255.255.255.0 172.20.0.30 track 2
ip route 10.70.1.0 255.255.2
4、55.0 172.20.0.30 10 //配置管理距離為10,使該路由作為備份路由,當track的主路由失敗后,則選擇這個路由
ip route 10.70.2.0 255.255.255.0 172.20.0.18 10
ip sla 1 //配置SLA,根據(jù)icmp來判斷鏈路是否可靠
icmp-echo 172.20.0.18 source-ip 172.20.0.17
ip sla schedule 1 life forever start-time now //配置schedule,是SLA立即生效,有效期為永遠
ip sla 2
icmp-ech
5、o 172.20.0.30 source-interface FastEthernet0/1
ip sla schedule 2 life forever start-time now
R2:
track 1 rtr 1 reachability
track 2 rtr 2 reachability
interface Loopback1
ip address 10.70.1.1 255.255.255.0
interface Loopback2
ip address 10.70.2.1 255.255.255.0
interface Fast
6、Ethernet0/0
ip address 172.20.0.18 255.255.255.252
interface FastEthernet0/1
ip address 172.20.0.30 255.255.255.252
ip route 10.80.1.0 255.255.255.0 172.20.0.17 track 1
ip route 10.80.2.0 255.255.255.0 172.20.0.29 track 2
ip route 10.80.1.0 255.255.255.0 172.20.0.29 10
ip route
7、10.80.2.0 255.255.255.0 172.20.0.17 10
ip sla 1
icmp-echo 172.20.0.17 source-ip 172.20.0.18
ip sla schedule 1 life forever start-time now
ip sla 2
icmp-echo 172.20.0.29 source-interface FastEthernet0/1
ip sla schedule 2 life forever start-time now
七、驗證
R2#sho track brief
T
8、rack Object Parameter Value Last Change
1 rtr 1 reachability Up 00:00:37
2 rtr 2 reachability Up 01:10:57
R2#sho track
Track 1
Response Time Reporter 1 reachability
Reachability is Up
8 changes, last change 00:01:58
Latest operation return code: OK
Latest RTT (millisecs) 3
9、2
Tracked by:
STATIC-IP-ROUTING 0
Track 2
Response Time Reporter 2 reachability
Reachability is Up
8 changes, last change 01:12:18
Latest operation return code: OK
Latest RTT (millisecs) 20
Tracked by:
STATIC-IP-ROUTING 0
可以在R1在配置deny ACL(具體操作不在表述),測試結(jié)果如下:
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