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Posts Tagged "Quality of Experience"

Improving Fault Isolation With Active Assurance and Passive Assurance

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There is a great deal of science and engineering involved in testing and validation of all the pieces which make up state-of-the-art wireless communication offerings. Conceived, created, developed, deployed, and operated by engineering professionals, it is no surprise that numbers and metrics are at the root of all testing approaches. For all the aspects of performance which measure objective artifacts in the physical world like time, frequency, power, and distance, the world of hard science provides a rich, no-discussion method to compare and validate performance.

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When we’re testing for provisioning scale for a device under test candidate, what is the meaningful metric to measure? Traditional metrics such as bandwidth, connections per second, or open connections are narrow focused metrics that measure specific engineering attributes of the device. For example, open connections and connections per second will give you information about table scaling and bandwidth will give you information about forwarding efficiency but neither of these metrics will put it all together and directly measure how users perceive quality over time.

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