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| 1.3 |  | Building-Block Approach |
| 1.3.6 |  | Small campus networks |

Small campus networks as shown in Figure are the most common and are typically contained within one building. In this design, it is not unusual to have a single multilayer switch servicing the entire network. In most cases cost effectiveness is the top priority, not network redundancy. Requirements for this design typically include the following:

- High performance for applications such as voice, video, and IP multicast
- Support for applications based on Novell IPX, DECnet, AppleTalk, and SNA

A design solution that meets these requirements provides a high-performance, switched infrastructure for a building-sized intranet with hundreds of networked devices. The network backbone consists of a Layer 3+ switch. The access layer switches provide connectivity to clients and servers.