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默认情况下R2为活跃路由器(priority 200)
当R2任一接口down掉(端口track将priority减掉110,timberland oxford shoes,剩余值为90)
此时R1(默认priority 100)就会preemt成为活跃路由器
待R2接口恢复正常,一则很少人能看懂的寓言！！！！,birkenstock coupons,教你如何在拍照时摆POSE(二）---- 站姿正面照,(priority变回200),MBT Kaya,又重新preemt成为活跃路由器
hostname R1
interface FastEthernet0/0
ip address 10.0.20.252 255.255.255.0
standby 20 ip 10.0.20.254
standby 20 preempt
interface FastEthernet1/0
ip address 10.0.10.252 255.255.255.0
standby 10 ip 10.0.10.254
standby 10 preempt
hostname R2
interface FastEthernet0/0
ip address 10.0.20.253 255.255.255.0
standby 20 ip 10.0.20.254
standby 20 priority 200
standby 20 preempt
standby 20 track FastEthernet1/0 110
interface FastEthernet1/0
ip address 10.0.10.253 255.255.255.0
standby 10 ip 10.0.10.254
standby 10 priority 200
standby 10 preempt
standby 10 track FastEthernet0/0 110