There are two ways CA Performance Management can monitor IPSLA tests.
1) Discovering tests already set up on the router itself:
To discover existing IPSLA tests, you would apply a monitoring profile that contains the appropriate Metric Family to discover the tests to a collection containing the devices, such as the Out of the box "Response Path" monitoring profile.
2) Configuring IPSLA tests using CA Performance Management:
If you need to use CA Performance Management to set up the IPSLA tests see https://techdocs.broadcom.com/content/broadcom/techdocs/us/en/ca-enterprise-software/it-operations-management/performance-management/3-7/configure-round-trip-time-rtt-tests.html