What happens if two domain controllers with the same name are combined into one network?

Question

VPN

The situation is the following. One organization with 11 branches. Each branch has its own domain controller. BUT! Everyone has one domain name for everyone (let it be net.local). And here there is a task to unite branches through VPN. What threatens such a situation? And is it possible to get by without renaming domains?

Answer 1

well so a domain name one it is normal!!!! the names of the DS servers are different, what would they be

Answer 2

Active Directory actively uses internal DNS, those servers that are on the domain controllers themselves.
These names are formed from the names of computers on the Windows network.
Byaka will be.
Unless you rigidly delimit work with DNS filialno.

Answer 3

Let's play a game with you.
Either you create trust relationships between domains ..
Or you build one common domain and set up replication / sites and so on.
choose =)