Chapter 1. Campus Network Design
An enterprise campus generally refers to a network in a specific geographic location. It can be within one building or span multiple buildings near each other. A campus network also includes the Ethernet LAN portions of a network outside the data center. Large enterprises have multiple campuses connected by a WAN. Using models to describe the network architecture divides the campus into several internetworking functional areas, thus simplifying design, implementation, and troubleshooting.
The Hierarchical Design Model
Cisco has used the three-level Hierarchical Design Model for years. The hierarchical design model divides a network into three layers:
• Access: Provides end-user access to the ...