LISA 2000 Abstract
Thresh--A Data-Directed SNMP Threshold Poller
John Sellens, GNAC, Inc.
Thresh is a simple SNMP  monitor, written in Scotty  (Tcl
 with the Tnm extensions), which uses the UNIX file system
hierarchy for configuration and data storage. Thresh compares SNMP
variables to per-device thresholds or values, and issues notifications
if any current SNMP variable values are unacceptable (or unexpected).
Thresh can be used by itself, or as a complement to other network
management and monitoring tools. Thresh can be thought of as fitting
in between tools that generate immediate emergency alerts (such as Big
Brother ) and trending and history tools (such as Cricket ).