"Fossies" - the Fresh Open Source Software Archive 
"Fossies" - the Fresh Open Source Software Archive A hint: This file contains one or more very long lines, so maybe it is better readable using the pure text view mode that shows the contents as wrapped lines within the browser window.
OpenNMS is an open-source network monitoring platform that helps you visualize and monitor everything on your local and distributed networks. OpenNMS offers comprehensive fault, performance, and traffic monitoring with alarm generation in one place. Highly customizable and scalable, OpenNMS integrates with your core business applications and workflows.
Full inventory management
Flexible provisioning system provides many ways to interoperate with configuration management systems.
Extensive data collection
Works with many industry-standard data collection protocols with no need to write or maintain third-party plugins: SNMP, JSON, WinRM, XML, SQL, JMX, SFTP, FTP, JDBC, HTTP, HTTPS, VMware, WS-Management, Prometheus.
Robust traffic management
Supports the following flow protocols: (NetFlow v5/v9, IPFIX, sFlow). 300,000+ flows/sec. BGP Monitoring support implementing the OpenBMP standards for BGP messages and metrics. Deep-dive analysis, enterprise reporting.
Digital experience monitoring
Use the OpenNMS Minion to monitor a service’s latency and availability from different perspectives.
Robust configuration
Configure most features through the web UI or XML scripting, including thresholding, provisioning, event and flow management, service monitoring, and performance measurement.
Scalability
Scale through Sentinels for flow persistence, Minions for Flow, BMP, SNMP trap, and Syslog ingest, and embedded ActiveMQ to Kafka message brokers.
Enterprise reporting and visualization
Customizable dashboards that you can export as a PDF. Resource graphs, database reports, charts. Define and customize complex layered topologies to integrate topology maps into your service problem management workflow.
For details on installing OpenNMS, see Install OpenNMS.
For details on how to build OpenNMS, see Build OpenNMS from source.