1. LAN Network Interactions
Internet
DMZ
ProxySG
Router
Auth
Server
Firewall
App/data
Server
App/data
Server
App/data
Server
App/data
Server L2
Switch
Router
Router w/WCCP
Auth Server
Branch Office
Router
App/data
Server
Because CIFS were intended to run on a LAN, the chattiness of the operation is so quick, it is not “human-noticeable” that this is occurring.
Branch Office
Router
Branch Office Router
L2 Switch
L4 Switch
App/data
Server
L2 Switch
App/data
Server

2. Shared Services: LAN/WAN
Internet
DMZ
ProxySG
Router
Auth
Server
Firewall
App/data
Server
App/data
Server
App/data
Server
App/data
Server L2
Switch
Router
Router w/WCCP
Auth Server
Branch Office
Router
App/data
Server
Once the corporations network builds out, the chattiness becomes noticeable to the end users due to WAN delays.
Branch Office
Router
Branch Office Router
L2 Switch
L4 Switch
App/data
Server
L2 Switch
App/data
Server

3. Centralized Servers to Corporate
Centralized Services
Centralized Servers to Corporate
Internet
DMZ
ProxySG
App/data
Server
Router
App/data
Server
Firewall
Auth
Server
App/data
Server
App/data
Server
App/data
Server L2
Switch
Router
Router w/WCCP
Auth Server
Branch Office
Router
Branch Office
Router
Branch Office Router
L2 Switch
L4 Switch
L2 Switch

4. Centralized Services Internet DMZ ProxySG App/data Server Router
Auth
Server
Firewall
App/data
Server
App/data
Server
App/data
Server L2
Switch
Router
Router w/WCCP
Auth Server
Branch Office
Router
Branch Office
Router
Branch Office Router
L2 Switch
L4 Switch
L2 Switch