A Java based fault and performance management system
CacheGuard Gateway is a UTM, a WAF, and a QoS management appliance.
A network security analysis and monitoring toolkit Linux distribution.
Nagios Open Source network monitoring software - The Standard In ITM
Monitoring and reporting web gui for Bacula
Open Source Monitoring System for performance and availability.
free netflow analyzer
Xplico is a Network Forensic Analysis Tool (NFAT)
The Internet of Things
Collects data about network useage using libpcap.