IP SLA requires an ICMP timing probe to test the connection to a destination IP address. You can assign the default ICMP timing probe, $ipsla_default, which uses the default ICMP timing probe settings, or you can create and assign a custom ICMP timing probe.
This example:
System(su-config)->probe ICMP-IP-SLA icmp timing System(su-config-probe)->receive 500 System(su-config-probe)->interval 1000 System(su-config-probe)->inservice System(su-config-probe)->exit System(su-config)->sla entry 1 echo S Chassis(su-config-sla)->destination 125.50.25.1 probe ICMP-IP-SLA
To run the IP SLA entry, you must schedule it. For information about scheduling the IP SLA entry, see Tracked Object Manager Configuration.