Applies to: Exchange Server 2007 SP3, Exchange Server
2007 SP2, Exchange Server 2007 SP1, Exchange Server 2007
Topic Last Modified: 2006-09-13
This topic provides an overview of the planning process for Hub Transport server deployment. The Hub Transport server role is a required role in a Microsoft Exchange Server 2007 organization that provides routing within a single organizational network by using the Active Directory directory service site. Deployed inside the Active Directory forest, computers that have the Hub Transport server role installed handle all mail flow inside the organization, apply transport rules, apply journal rules, and deliver messages to recipients' mailboxes. Messages that are sent to the Internet are relayed by the Hub Transport server to the Edge Transport server role that is deployed in the perimeter network. Messages that are received from the Internet are processed by the Edge Transport server before they are relayed to the Hub Transport server. The Hub Transport server role stores all its configuration information in Active Directory. This information includes transport rules settings, journal rule settings, and connector configurations.
Planning for Hub Transport
Server Deployment
When you plan to deploy the Hub Transport server role, you should consider the following topics:
- Topology options Begin by planning
where you will put your Hub Transport servers in the Exchange
physical topology. When you have determined where the Hub Transport
server will be located in the network relative to your other
Exchange servers, you can plan for the connectors that you will
require and for how they should be configured. For more information
about how to plan for placement of the Hub Transport server, see
Deployment
Options for Hub Transport Servers.
- Server capacity Planning for server
capacity includes determining how you will conduct performance
monitoring of the Hub Transport server. Performance monitoring will
help you set a performance baseline for your servers. This
information will help determine the capacity of your hardware
configuration. For more information, see Planning Processor
Configurations.
- Transport features As part of your
planning process, you should determine the transport features that
you will enable at the Hub Transport server and how they will be
configured. For more information about how to plan to use
Exchange 2007 transport features, see Planning for Hub
Transport Features.
- Security The Hub Transport server role
is deployed inside the Exchange organization. Planning for Hub
Transport server security includes delegation of administrative
roles and verification that IP connections are only enabled from
authorized servers. Additionally, you should verify that no
nonessential services are running and that no unnecessary ports are
open. For more information, see Deployment Security
Checklist
For More Information
For more information, see the following topics: