In working with two different, and totally unrelated, unconnected AD domains, and in each I've found the same pecularity.
Both domains function normally. No issues whatsoever.
About a year ago, I rev'd the schema in each to the level of Windows Server 2008 R2. I installed new computers and promoted them to Domain Controllers, leaving in place, 'for the moment,' the old Windows Server 2003 domain controllers that were being superceded.
No issues.
Situation: each domain has two W2K3 DC's and two W2K8 DC's running at the W2K3 Forest and Domain functional levels.
Last week, I was about to demote the Windows Server 2003 domain controllers when I noticed a pecularity. In running replmon on the oldsters, I noted that each W2K8 DC had connections to each of the W2K3 domain controllers -- but not to its partner W2K8 DC. Running DSSITE.MSC on each W2K8 controller confirmed this.
It didn't look as if the two W2K8 DC's had connections to each other.
Is this normal, or pathological?
Will this clear up when I demote the W2K DC's, or wll it require further action?
Thanks in advance.