Some aspects of network management system for video service

Network operators providing integrated service that includes fixed telephony, Internet access and television are faced with need of management system integration. It is needed in order to achieve complete picture of current service quality as well as service quality trend. Namely, while own access network as well as and HFC (hybrid fiber coaxial) network are built on some geographical areas, on other geographical areas operators are forced to use lines owned by other operators. On the other hand, customers use services transparently, without knowing anything about architectural or implementation details, perceiving service quality and availability only. Hence, it is necessary to implement network management system that will integrate data from network parts controlled by other operators, in addition to own network monitoring, especially HFC part of the network. However, network parts controlled by other operators are visible as a “cloud”, but data from cloud borders should be integrated into network management system. Management data from different sources should be integrated into video service quality management system through mediation layer. This paper describes some aspects of implementation of such system, obtained as a result of authors' work on real network management systems.