Network design and re-design

M Network planning and design is an iterative process, encompassing topological design, network-synthesis, and network-realization, and is aimed at ensuring that a new telecommunications network or service meets the needs of the subscriber and operator.[1] The process can be tailored according to each new network or service. Read more in Wikipedia.

A traditional network planning methodology in the context of business decisions involves five layers of planning, namely: need assessment and resource assessment, short-term network planning, IT resource, long-term and medium-term network planning, operations and maintenance. Planning a new network/service involves implementing the new system across the first four layers of the OSI Reference Model. Choices must be made for the protocols and transmission technologies. he network planning process involves three main steps:

Topological design

Network-synthesis

Network realization

The role of forecasting
During the process of Network Planning and Design, estimates are made of the expected traffic intensity and traffic load that the network must support. If a network of a similar nature already exists, traffic measurements of such a network can be used to calculate the exact traffic load. If there are no similar networks, then the network planner must use telecommunications forecasting methods to estimate the expected traffic intensity.
Data driven network design
More recently, with the increasing role of Artificial Intelligence technologies in engineering, the idea of using data to create data-driven models of existing networks has been proposed. By analyzing large network data, also the less desired behaviors that may occur in real-world networks can be understood, worked around, and avoided in future designs. Both the design and management of networked systems can be improved by data-driven paradigm.Data-driven models can also be used at various phases of service and network management life cycle such as service instantiation, service provision, optimization, monitoring, and diagnostic.