As the communication world transforms to a service-oriented system, the next generation Service Providers (SP) have to deal with multi-technology, multi-vendor networks. The Service Providers not only have to provide a varied set of services to their customers but also need to contend with the pressure on the networking resources as the services multiply. In such a scenario, it is essential that the SP has a consistent view of the performance and utilization of the entire network. Only then can the SP efficiently utilize and plan the network resources available at his disposal.

As various technologies have developed over time the standards for monitoring the performance of the Network Elements for these have come to differ. This makes it very difficult to extract and correlate the Performance information. The aim of this document is to consolidate the underlying requirements behind PM Information interfaces from different technologies so that the SP is aware at all times of end-to-end performance and utilization of the network. This would also facilitate the SP in visualizing the performance of various services deployed in the network.

This interface functionality is closely related to Resource Problem Management and Resource Management. Along with Resource Problem Management, the Performance Management functionality provides inputs to the Service Assurance Modules of OSS.

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