Tulsa_Network_Design

Oklahoma Computer Network DesignTulsa Server Network Design

The first step in network design is the assessment. An assessment is a detailed report describing the status of your company’s existing network and highlights areas of concern. In situations where a complete network overhaul or new network design is needed IBT works to create an infrastructure that will support all the applications, workflows and connectivity needed to establish a stable and expandable network environment.

A traditional network planning methodology involves four layers of planning:

  • business planning
  • operations and maintenance
  • short-term network planning
  • long-term and medium-term network planning

Each of these layers incorporate plans for different time horizons, i.e. the business planning layer determines the planning that the operator must perform to ensure that the network will perform as required for its intended life-span. The Operations and Maintenance layer, however, examines how thenetwork will run on a day-to-day basis.

The network planning process begins with the acquisition of external information. This includes:

  • forecasts of how the new network/service will operate
  • economic information costs
  • technical details of the network’s capabilities

Please note that planning a new network/service involves implementing the new system across the first four layers of the OSI Reference Model. This means that even before the network planning process begins, choices must be made, involving protocols and transmission technologies.

Once the initial decisions have been made, IBT moves the network planning process to:

  • Topological design: This stage involves determining where to place the components and how to connect them. The (topological) optimization methods that can be used in this stage come from an area of mathematics called Graph Theory. These methods involve determining the costs of transmission and the cost of switching, and thereby determining the optimum connection matrix and location of switches and concentrators.
  • Network-synthesis: This stage involves determining the size of the components used, subject to performance criteria such as the Grade of Service (GoS). The method used is known as "Nonlinear optimization", and involves determining the topology, required GoS, cost of transmission, etc., and using this information to calculate a routing plan, and the size of the components.
  • Network realization: This stage involves determining how to meet capacity requirements, and ensure reliability within the network. The method used is known as "Multicommodity Flow optimization", and involves determining all information relating to demand, costs and reliability, and then using this information to calculate an actual physical circuit plan.

These steps are interrelated and are therefore performed constantly, and in parallel with one another. The planning process is highly complex, meaning that at each iteration, an analyst must increase his planning horizons, and in so doing, he must generate plans for the various layers outlined above.