By using ICMP and SNMP monitoring, Zenoss Core reports on the availability of the following:

Zenoss Core is Level-3 network topology aware, which reduces the amount of alert chatter by creating an event about the problem device only and not about the devices that depend on it.

Performance monitors collect time series data and provide us with a graphical analysis of the following components:

The following screenshot shows a graph based on Zenoss Core's monitoring activity:

Using the built-in event management system, we can configure Zenoss Core to generate an event if a monitored device crosses a defined threshold.