1. Enterprise Topography
Enterprise Network
External Mail Servers
Edge
Transport
Hub
Transport I N T E R
PBX or VoIP
Routing Hygiene
Routing Policy
Unified Messaging
Client Access
Voice Messaging
Applications OWA
Mailbox
Fax
Protocols
ActiveSync, POP, IMAP, RPC / HTTP …
Remote
Corporate
Users
Mailbox
Public Folders 1

2. Enterprise Topography
Enterprise Network
External Mail
Servers
Edge
Transport I N T E R
Routing Hygiene
EDGE TRANSPORT ROLE
Purpose - Minimizes Overall Attack Surface
Gateway for all outbound and inbound
Anti Spam / Anti Virus Processing
F5 Play – LTM/GTM can provide critical Load Balancing, High Availability, and Performance Benefits. 2

3. Enterprise Topography
Enterprise Network
External
Mail
Servers
Hub
Transport I N T E R
Edge
PBX or VoIP
Edge
Routing Policy
Edge
Unified Messaging
Client Access
Voice Messaging
Applications OWA
Mailbox
Fax
Protocols
ActiveSync, POP, IMAP, RPC / HTTP …
Remote
Corporate
Users
Mailbox
Public Folders 3

4. Enterprise Topography
Enterprise Network
External
Mail
Servers
Hub
Transport I N T E R
Routing Policy
HUB TRANSPORT ROLE (Bridgehead)
Purpose – Route , Compliance
Applies Transport Rules & Routing
Journaling Policies
Delivers mail to mailboxes
Content Conversion
Anti-Spam / Anti-Virus Processing
F5 Play
LTM Can Provide Load Balancing / HA
Hub to Hub (Branch Office) acceleration via WanJet
Remote
Corporate
Users 4

5. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
Hub
Edge
PBX or VoIP
Hub
Edge
Hub
Edge
Unified Messaging
Client Access
Voice Messaging
Applications OWA
Mailbox
Fax
Protocols
ActiveSync, POP, IMAP, RPC / HTTP …
Remote
Corporate
Users
Mailbox
Public Folders 5

6. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
PBX or VoIP
Unified Messaging Role
Purpose – Add new messaging functionality
Combines voice messaging, fax, into one inbox
Can be access by telephone and/or computer
Integrates with existing telephony
This is an optional piece to Exchange 2007
F5 Play
LTM Can Provide Load Balancing / HA for UM Servers
Unified Messaging
Voice Messaging
Fax
Remote
Corporate
Users 6

7. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
Hub
Edge
PBX or VoIP
Hub
Edge
Hub
Edge
Client Access UM
Applications OWA UM
Mailbox UM
Protocols
ActiveSync, POP, IMAP, RPC / HTTP …
Remote
Corporate
Users
Mailbox
Unified Messaging
Farm
Public Folders 7

8. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
Mailbox Role
Purpose - Hosts Mailbox databases
Supports richer calendaring, resource management, offline address book downloads, etc
Necessary if you are hosting mailboxes or public folders
High Availability of the Mailbox Servers will be handled by Exchange Clustering Technologies.
Mailbox
Remote
Corporate
Users
Mailbox
Public Folders 8

9. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
Hub
Edge
PBX or VoIP
Hub
Edge
Hub
Edge
Client Access UM
Applications OWA UM
Mailbox UM
Protocols
ActiveSync, POP, IMAP, RPC / HTTP …
Remote
Corporate
Users
Mailbox
Unified Messaging
Farm
Public Folders 9

10. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
Client Access Server Role
Purpose - Front end for the mail boxes
IMAP4, POP, ActiveSync Clients will connect to this to retrieve their
F5 Play
LTM to provide Load Balancing, High Availability, SSL (OWA) offlloading
FirePass to provide secure access to mail
WebAccelerator to provide OWA acceleration
WanJet to provide branch office acceleration
Client Access
Applications OWA
Protocols
ActiveSync, POP, IMAP, RPC / HTTP …
Remote
Corporate
Users 10

11. Enterprise Topography
Enterprise Network
External
Mail
Servers I N T E R
Hub
Edge
PBX or VoIP
Hub
Edge
Hub
Edge UM UM
Mailbox UM
Remote
Corporate
Users CA
Mailbox
Unified Messaging
Farm CA
Public Folders CA
Client Access
Farm 11