Round Robin is a form of load balancing, distributing client requests across multiple servers.
Open dns manager > right click on your dns server > Click properties
Click Advanced tab > ensure enable round robin is ticked
Now create your host A records it will have the ‘Same name’ with different IP addresses.
Right click your domain > Click New Host
I will create two host A records
ldaps – 192.168.1.50
ldaps – 192.168.1.51
Two new records created ‘Same Name’ but different IP addresses
Set the TTL records to a low value, such as 5 – 15 seconds for high availability and 5 minutes for quick failover.
Click view in DNS Manager > Click Advanced
Change your host A records to a TTL of 5 minutes for quick failover.
Done