Many Exchange 2010 administrators are familiar with working with database availability groups (DAG) and the multiple copies of mailbox stores they provide. One area of confusion around DAGs, however, is properly configuring DAG networks. This article reviews how to configure a multi-site DAG that consists of multiple networks.
The example I will be using consists of Exchange Servers hosted in two physical locations. Each server has three network cards and resides on three different VLANs. For simplicity,... read more.