enable ldaps in dc

I'm going to enable LDAPS on my 3 domain controllers (Windows 2008 R2) so I created my own CA in first domain controller according to thishttps://www.youtube.com/watch?v=JFPa_uY8NhY&t=2s

I tested it by ldp.exe command and It works fine.

I don't understand if I have to follow further steps, e.g to the other 2 domain controllers.

Thanks