Explanation/Reference:
Explanation:
Campus LAN Design and Best Practices
LANs can be classified as large-building LANs, campus LANs, or small and remote LANs. The large-
building LAN typically contains a major data center with high-speed access and floor communications
closets; the large-building LAN is usually the headquarters in larger companies. Campus LANs provide
connectivity between buildings on a campus. Redundancy is usually a requirement in large-building and
campus LAN deployments. Small and remote LANs provide connectivity to remote offices with a relatively
small number of nodes. Campus design factors include the following categories:
Network application characteristics: Different application types Infrastructure device characteristics: Layer
2 and Layer 3 switching, hierarchy Environmental characteristics: Geography, wiring, distance, space,
power, number of nodes
Applications are defined by the business, and the network must be able to support them. Applications may
require high bandwidth or be time sensitive. The infrastructure devices influence the design. Decisions on
switched or routed architectures and port limitations influence the design. The actual physical distances
affect the design. The selection of copper or fiber media may be influenced by the environmental or
distance requirements. The following sections show some sample LAN types. Table 3-8 summarizes the
different application types.