I'm trying to figure out why it is claimed that cross-domain GPO is not recommended due to performance concerns. The primary source seems to be this blog:
Group Policy Basics – Part 1: Understanding the Structure of a Group Policy Object
If \\Domain1DC\sysvol & \\Domain2DC\sysvol are on the same vlan in the same data center and user in Domain1 has a policy (or several) linked from Domain2, I'm having a hard time measuring the performance difference. The org actually has users in Domains 1-11 and the real trouble was keeping the user policies consistent (all of the workstations are now in Domain1 now, so computer policies are no problem).
I guess the question is, why can it be a very slow process?
> In the case of a cross-domain GPO, the client will need to pull content from a DC in the neighboring domain which can be a very slow process. For this reason, cross-domain GPOs are not generally recommended.
Thanks,
J
Joseph M. Durnal MCM: Exchange 2010 MCITP: Enterprise Messaging Administrator, Exchange 2010 MCITP: Enterprise Messaging Administrator, MCITP: Enterprise Administrator