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Website and
RRD TOOL
created by
Tobi Oetiker

For more information
about CAIDA write to
info@caida.org




Swiss Original.  Mirrors: AU, TW, IE, SE, US,

OpenNMS

by The OpenNMS Group

OpenNMS is an enterprise-grade network management system published under the open-source model. It performs service monitoring, data collection and contains a robust event management and notification system.

OpenNMS uses RRDtool to store the time-series data that it collects, as well as to graph the data once it is collected. The collection is controlled via a group of XML files. Once configured, the data collection and display are fully automated. In addition, the collected data can be examined by the threshd process to generate alarms when thresholds are reached.

OpenNMS also uses RRDTool to graph response time data from its service polls (which can also generate threshold alarms), and the RRD files are stored in a logical file structure that can allow the collected data to be made available to other applications that use RRDTool.

For SNMP data collection, the OIDs of interest are placed into groups, and then these groups are associated with systemOIDs. When a new device is discovered, its systemOID is checked against those configured, and if a match is made data collection begins automatically. Another configuration file determines how the collected data is displayed using the RRDTool graph function, so that each graph can be customized appropriately, if need be.

OpenNMS can be obtained at http://www.opennms.org


This page was updated on, Fri Apr 15 18:06:11 2005