Reference architectures for Forefront Protection 2010 for Exchange Server
There are two main reference architectures used for Forefront Protection 2010 for Exchange Server (FPE) deployments: Enterprise Reference Architecture and Standard Reference Architecture.
Enterprise Reference Architecture
Enterprise Reference Architecture (ERA) is a scalable unit intended to be deployed within a larger organization. It is comprised of an Edge Transport server, Hub Transport server, multiple Mailbox servers, a Global Catalog (Active Directory) server, and a Client Access Server (CAS), as shown in the following illustration.
.gif "Enterprise Reference Architecture")
Standard Reference Architecture
The Standard Reference Architecture (SRA) is intended to be a scalable unit targeted at small to medium sized organizations. As shown in the following illustration, it is comprised of a dedicated Edge Transport server, one or more multi-role servers that encompass the Hub Transport server, Mailbox server, and CAS roles, and a dedicated Active Directory server.
.gif "Standard Reference Architecture")
Tip
If you would like more information regarding Exchange server roles, see Overview of Exchange 2010 Server Roles. If you would like more information regarding Exchange planning and deployment, see Planning for Exchange 2010.