I will be upgrading CA Ideal r11 to CA Ideal r15. I Know that you are required to upgrade CA Datacom r11 to CA Datacom r12 first, then to CA Datacom r14 before you upgrade to CA Datacom r15. What are the requirements for upgrading CA Ideal r11 to CA Ideal r15?
You can upgrade from CA Ideal r11 to CA Ideal r15 without upgrading to CA Ideal r14 first but CA Ideal r15 does require CA Datacom/DB r15 and CA IPC r15.
Please review CA Ideal r15 README file RI65881