Torrus is designed to be the universal data series processing framework. Although most users deploy Torrus for SNMP monitoring, it might be useful for data series of any nature. Tobi Oetiker's RRDtool is used for data storage. * Configuration compiler and validator. It processes the XML configuration files and saves the configuration into a database. * View renderer and the web interface. They generate HTML and the graphical representation of the datasources and provide user authentication and authorization. All generated output is controlled by the configuration parameters and templates. The users can easily create their own presentation of data series. * SNMP Collector. Modular collector core architecture allows further extension with new collector and storage types. Any datasource can have its own polling schedule. * SNMP Device Discovery Tool. Devdiscover is a new, modular, flexible, and expandable tool for automatic generation of Torrus configuration files. New device types and MIBs are easily added as independent Perl modules. * Threshold monitor. All data, regardless of their type and nature, can be monitored according to the user-defined rules. The rules can also include the datasource-specific parameters, e.g. boundary values etc. The thresholds are specified by RPN expressions.