Use cases of network simulation
Network simulation is a concept that allows for predictive analysis of network changes. It
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enables what-if analysis to predict the outcomes of changes in the network model
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supports capacity planning through simulations, and
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helps forecasting by projecting growth percentages on demands.
Examples
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What-if analysis—You can examine what happens if you change any aspect of the network model. For example:
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What happens if a link or a node fails?
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What happens if you change a metric?
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What happens if you change the topology?
For details, refer to Perform What-If Analysis.
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Capacity planning with resiliency analysis—You can simulate what happens if a node, SRLG, LAG, or a site fails. Cisco Crosswork Planning has the Simulation analysis tool to automate this process and provide the analysis. Running the tool displays the "worst-case" scenarios that highlights areas most at risk of congestion. You will also get a "failure impact" view, detailing the failures that cause the worst case. For details, refer to Evaluate Impact of Worst-Case Failures.
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Capacity planning and forecasting—Using the Create growth plans tool, you can apply a growth percentage to a demand or set of demands and project that growth into the future. For details, refer to Evaluate Impact of Traffic Growth.