config ter
ip sla 10
icmp-echo 10.101.172.254 source-ip 10.101.172.250
timeout 2000
threshold 10
frequency 30
ip sla schedule 10 life forever start-time now
track 10 rtr 10 reachability
ip route 10.101.0.0 255.255.0.0 10.101.172.254 track 10
ip route 10.102.0.0 255.255.0.0 10.101.172.254 track 10
exit
wr