rnet. (Copies of the sites cited are included in the appendix. With those caveats understood, the first element to examine is just what is performance management?
"Network Performance Management" refers to how well the network serves its users. It requires analysis and control of the throughput and error rates. Network performance management includes the processes of quantifying, measuring, reporting, and controlling of responsiveness, availability, and utilization for the different network components. It's important to emphasize: network performance has to be measured end-to-end (Morency, 1998, March 9).
What truly matters is how well the performance is perceived by end users, in other words the performance of the network as a whole. The performance of each of the individual network components, while important, is less critical to measure than end-to-end results. Therefore NPM measures and controls how much data is traveling across each segment, at what percentage utilization and also determines rational method
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