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interface FastEthernet0/0

ip address 192.168.1.11 255.255.255.0

duplex full

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ip sla 1 创建服务条目

icmp-echo 2.2.2.2 source-ip 192.168.1.11 类型为icmp-echo

frequency 10 间隔为10s

ip sla schedule 1 life forever start-time now 创建条目设置开始时间和有效时间

ip sla 2

icmp-echo 3.3.3.3 source-ip 192.168.1.11

frequency 10

ip sla schedule 2 life forever start-time now

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track 1 rtr 1 reachability 和track条目和响应条目关联，track关心可达性

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track 2 rtr 2 reachability

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ip route 0.0.0.0 0.0.0.0 192.168.1.12 track 1

ip route 0.0.0.0 0.0.0.0 192.168.1.13 5 track 2

ip route 2.2.2.2 255.255.255.255 192.168.1.12

ip route 3.3.3.3 255.255.255.255 192.168.1.13

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