An IP SLA fails to generate statistics. How can you fix the problem?

The `verify-data` command, configured within an IP SLA operation, instructs the router to validate the data payload of the received response packet. For certain IP SLA operations, if `verify-data` is not enabled, the operation might not generate meaningful statistics or might even report success without proper data validation, leading to a lack of statistics.

Reloading the router is a drastic and unnecessary step for troubleshooting IP SLA statistics generation; specific configuration commands are the proper solution.

Removing and re-entering the `ip sla schedule` statement might resolve transient scheduling issues, but it does not address a fundamental configuration requirement like enabling data verification for statistics generation.

`debug ip sla error` is a troubleshooting command to display error messages, not a configuration command to enable statistics generation itself.

`debug ip sla trace` is a debugging command to trace the execution of IP SLA operations, which helps in identifying problems but does not fix the problem of statistics not generating.