An
enterprise grade network management
platform developed under the
open source
model. It consists of a community supported open-source project as well as a
commercial services, training and support organization. As a network
management platform, it provides several major feature categories: discovery,
monitoring, events, data collection, and reporting. OpenNMS was started in 1999
and registered on Sourceforge in 2000. It is currently maintained by Tarus Balog.