A description is given of the automated network management (ANM) system, which assists the network operator and analyst in understanding and controlling complex internets. The ANM system provides an integrated set of tools for real-time monitoring, control, and analysis of internets consisting of diverse network entities such as internet gateways, packet-switching nodes, packet radio systems and hosts. It can reduce maintenance costs by providing capabilities such as fault isolation and alarm generation, so that the network operators can efficiently and effectively monitor and control networks. ANM also provides advanced data gathering, analysis, and presentation tools that enable the network analyst to understand better the behaviour of the network, and to enhance network performance. >