For CA Spectrum release 10.2 a program temporary fix is available which sets the Registers_for_Alerts attribute to True by default in the SSdb:
Please open a case and request the Spectrum_10.02.00.PTF_10.2.046 patch if you need it.
This is tentatively scheduled to be fixed in CA Spectrum release 10.2.2. The Fixed Issues will show an entry similar to this:
Symptom: Alarm not getting generated on Cisco Apic model type.
Resolution: Setting register_for_alerts attribute to true for the said model type.
(DE289132, 00723041 )