Thanks alot all
so i understand the following :
1- Master & local controller communication will be working
2- AP discovers controller ( at first boot i control which controller it sees as its controller using DHCP, DNS..... ) .... This controller can be mastre or local .... then from it i will provision AP to take LMS & Backup LMS
3- i can have option to make Local as LMS & master as backup LMS , and vice versa
is the above right ? as earlier i thought that AP should terminate to Master , then master gives AP its Local controller IP ... and i thought that LMS & Backup LMS is redundancy method not realted at all to master Local Controller