Understanding Active Directory Site Topology
Applies To: Windows Server 2008, Windows Server 2008 R2, Windows Server 2012
Your site topology significantly affects the performance of your network and the ability of your users to access network resources. Before you begin to design your site topology, become familiar with the functions for sites in Windows Server 2008, the different network topologies that organizations commonly use, the role of the site topology owner, and some Active Directory replication concepts.