We use discovery to import computer, user, and group resources into CM12. Discovery can also be used to discover network infrastructure, as well as IP Subnets and Active Directory Sites in Active Directory Forests.
Enabling discovery is one of the first things we configure in CM. Heartbeat Discovery is automatically enabled when we install a primary site. Forest Discovery is the only discovery method that can be enabled on a CAS. Enabling discovery is very similar for each method (other than heartbeat), so we will only go through the process once.
To enable Active Directory (AD) Forest Discovery, carry out the following steps: