TONICS* (Telephone Operations Network Integrated Control System) is a deployed infrastructure for fault and performance management of GTE's nationwide telecommunication networks. This infrastructure has enabled consolidation of network management functions for geographically distributed and heterogeneous networks in GTE in a single network operations center Given the scale and scope of this operation event correlation is an essential component of centralized management of performance and faults. TONICS is currently deployed with a sub-system for local, sewer-based, event correlation. The issue is how to begin handling global correlation requirements. We present a case study of how standard distributed object technologies such as CORBA can be leveraged in an existing infrastructure such as TONICS to enable global correlation and aggregation across TONICS sewers and, in the GTE operational context across vertically coupled network element families. Examples of such correlation are provided in the paper.
