I have a approx. 3000 endpoints with a small connection back to local domain controllers. Bandwidth is approx. 60mbps. We have noticed that when we run a schema update or domain/forest prep, this causes these workstations to completely saturate this connection with ldap calls. First occurrence happened during a Exchange CU update and the CU required a schema update. Second occurrence happened when we promoted the first server 2019 domain controller into the environment and a domain/forest prep was required. We cannot figure out what it is these workstations are downloading at the time of this bandwidth constraint.
Do workstations require to download a local copy of the schema? Do they require downloading a copy of the domain\forest instructions when a change is made?
Any suggestions or help would be greatly appreciated.