Summary
Enterprise networks are both simpler and more complex than service provider networks when attempting to predict availability. They are simpler because more of the components are under your control and availability is less likely to affect control systems. On the other hand, enterprise networks are likely to include far more scenarios than a typical service provider network. Your work will be significant if you want to perform a complete analysis.
The results of calculating the scenario we chose in this enterprise example are not particularly important. The value we were able to derive in terms of the process and the observation about human error is far more important than the fact we came up with 3.86 hours of annual downtime for the ...
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