Zenoss: An Enterprise-Ready Network Monitoring Tool
http://www.enterprisenetworkingplanet.com/daily_news/article.php/409316/Zenoss-An-EnterpriseReady-Network-Monitoring-Tool.htm
The features of Zenoss a network monitoring tool that is enterprise-ready were recently described in a story by TechRepublic.com. Zenoss allows administrators to closely monitor network hardware, and its beneficial features include an impressive interface and plug-ins that can extend the program's functionality. The one downside of the product identified in the article is that installation is quite complex.
"Zenoss solves the problem of being able to keep a close, constant watch on your network hardware to ensure it is running efficiently and well. And unlike Nagios, Zenoss doesnt require the administrator to edit configuration files in order to set up monitors for devices. Zenoss brings a much simpler Web-based interface from start to finish."