TCP/IP NETWORKING
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Research on Network Design:
Currently the concept of network designing is becoming more complex. Different types
of networks requires different types of network design methodology. Some important network
design methodology that can be utilized are the PPDIOO, Eight Step Design Methodology and
Cisco three layer model.
PPDIOO:
PPDIOO is the full form of Prepare, Plan, Design, Implement, Operate, and Optimize
which is a typical type of network cycle and this is defined by Cisco. The main steps of the
PPDIOO are prepare, plan, design, implement, operate, and optimize sequentially (Hernandez &
Jimenez, 2018). The main pros of PPDIOO is that it is capable of lowering the total cost of
ownership and availability of the network is also improved in this case. Main con is that it is very
much time consuming process.
Eight Step Design Methodology:
To build a complete network solution by following a given requirement eight step design
methodology can be utilized. This step will be consisting complete procedure and detail
regarding designing of the network. The main steps related with the eight step methodology are
the customer needs recognition, existing network description, network and topology solution
design, network implementation planning, network prototype construction, documenting the
design, implementation of the design and verification and monitoring of the network (Chou,
Baker & Vega-Herrera, 2016). The main pros of this type of methodology is that network can be
designed by following a given requirement properly. The main con is that creating network
design by following this type of methodology is quite complex.

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