If I have a running unleashed wifi config with R510 (CONFIG A), and suddenly I plug an AP (either master or member) from another running network (CONFIG B) into same LAN
a. will the configuration (CONFIG B) of the new added AP being overwritten with the running config (CONFIG A)?
b. are there any chance for conflict? e.g. make existing member APs switch from using CONFIG A to CONFIG B?
c. it is a good practice to reserve IP address for all APs?
As per the design, every time unleashed AP (irrespective of roles) is booted up, it searches for available master APs in the same network. If yes, then the AP would join the existing Master AP, else the AP will decide itself as a Master AP and wait for member APs to join.
In your scenario, Config-A would override the new AP config.
C. It is a good practice to reserve IP address for all APs?
We never noticed any potential impact reserving IP address in DHCP. Should be good practice.