Principles of Indicators Formation for Quality of Communication Networks Monitoring

Currently, communication networks provide a fairly large number of services to the end user. At the same time, each service has its own set of performance indicators for the network infrastructure, which determine the quality of the provision of this particular service. It should be noted that the quality of the provision of different communication services can be influenced by both different and the same quality indicators of the network infrastructure. At the same time, the common for some services indicators of the quality of the network infrastructure may have for each service different permissible ranges of values and be related or depend on the values of other indicators of the quality of the network infrastructure. Such complex relationships between the quality of network services and the quality indicators of the network infrastructure make individual monitoring of the values of the quality indicators of the network infrastructure not always advisable, because such monitoring algorithms have a high degree of branching due to a large number of conditions. In this case, it is most expedient to form for each service from the quality indicators of the network infrastructure some evaluation function, the output of which values beyond the allowable range will indicate degradation of the quality of a particular service and define a set of quality indicators for the network infrastructure for their further detailed control.