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You are here: Home / Design / CCDA / Chapter 2: Network Design Methodology / Network Design Methodology – PPDIOO Lifecycle Model

Network Design Methodology – PPDIOO Lifecycle Model

In addition to knowing the essential features of a flexible network, a network designer should also follow a methodology that must guide the entire lifecycle of the design process. In this regard, Cisco developed the PPDIOO model, which is a six-phase model that every network implementation will go through during its operational lifetime, as follows:

  1. Prepare
  2. Plan
  3. Design
  4. Implement
  5. Operate
  6. Optimize

The PPDIOO lifecycle model (Figure 2.4) and SONA have one common benefit: they both lower the TCO. In the early phases of the . . .

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