Information Technology Reference
In-Depth Information
the focus of the campus backbone on fast transport. Medium-sized campus network de-
signs sometimes use a three-tier implementation or a two-tier implementation, depending
on the number of ports, service requirements, manageability, performance, and availability
required.
Enterprise Edge Area
As shown in Figure 2-7, the enterprise edge consists of the following submodules:
E-commerce networks and servers
■
Internet connectivity and demilitarized zone (DMZ)
■
VPN and remote access
■
Enterprise WAN
■
Enterprise Edge
E-Commerce
DMZ/Internet
Enterprise
WAN
Remote
Access VPN
Figure 2-7
Enterprise Edge Module
E-Commerce Module
business services. It uses the high availability designs of the server farm module with the
