NP
The ability of a network or network portion to provide the functions related to communications between users. Network performance is defined in ITU-T Recommendation E.800 as the ability of a network or network portion to provide the functions related to communications between users; it contributes to service accessibility, service retainability and service integrity. Network performance parameter values are usually derived from quality of service parameter values (c.f. for example ITU-T Recommendation I.350). Notes: 1. Network performance applies to the Network Provider's planning, development, operations, and maintenance and is the detailed technical part of QoS, excluding service support performance and human factors. 2. Network performance is the main influence on serveability performance. 3. Network performance measures are meaningful to network providers and are quantifiable at the part of the network to which they apply. Quality of service measures are only quantifiable at a service access point. 4 It is up to the Network Provider to combine the Network Performance parameters in such a way that the economic requirements of the Network Provider, as well as the satisfaction of the User, are both fulfilled
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