01
  • Intro
  • Topic 1
  • Topic 2
  • Topic 3
  • Topic 4
  • Topic 5
  • Topic 6

  • Chapter 1 NETWORK DESIGN

    Chapter 1 provides an introduction to network design within a modern campus environment.

    By campus, we mean a network which may be spread across several buildings within an area of up to 2 km. Examples of this would be a University campus or a corporate headquarters site. Campus networks are designed to meet the needs of many users and to carry large amounts of data traffic as fast as possible.

    This chapter will introduce you to the main factors affecting campus networks, the main models and concepts used in current designs, and the lifecycle approach to campus network design.


    Specifically, this chapter has the following objectives:


    ● Describe common campus design options and how design choices affect implementation and support of a campus LAN.
    ● Describe the access, distribution, and core layers.
    ● Describe small, medium, and large campus network designs.
    ● Describe the prepare, plan, design, implement, operate, optimize (PPDIOO) methodology.
    ● Describe the network lifecycle approach to campus design.

  • Topic 1 provides an overview of what is meant by a campus network and some of the key concepts to bear in mind.

  • Topic 2 examines the main types of network infrastructure used in campus networks, specifically layer 2, layer 3 and multilayer switches.

  • Topic 3 discusses the effect of changing applications on modern campus networks.

  • Topic 4 introduces the concepts of Access, Distribution and Core layers (the hierarchical model) within the context of campus networks.

  • Topic 5 examines different scales of campus networks and some of the design differences at each scale.

  • Topic 6 introduces the lifecycle approach (PPDIOO) to network design.