Operational databases-related multi-layer network modeling to support network development at Magyar Telekom

Emerging high speed access technologies create conditions for a mass market of broadband IP services. Video, voice and business data transmission need high availability and appropriate packet-level performance from the telecommunications network. To upgrade current IP core and aggregation networks in a cost-effective way to meet enhanced service availability and demanded quality requirements for the above services, a thorough knowledge about the currently available network capabilities provides the starting point. For this purpose an integrated layered model of the existing multi-technology network was developed covering the architecture, logical and physical topologies. In order to have up-to-date data of current operational networks, model attributes have been based practically on the information stored in operational databases. These data structures were originally developed for service and network deployment and for O&M purposes, and have not been adjusted to support planning processes. So the main issue was to derive a unified and consistent planning database, scalable and optimized for the arising planning tasks. By using this integrated model various planning and analysis tools - that were developed to operate on the model - can give considerable support for network development tasks to be performed quickly and efficiently. The paper presents the operational databases-related multi-layer network modeling framework what is used in the practice of Magyar Telekom to support network development.