This is UCD SNMP, a derivative of CMU's SNMP package. From the README: This package contains a port and modified code of the CMU 2.1.2.1 snmp agent. It has been modified to allow extensibility quickly and easily. It is far from the best and most configurable systems; but hey: its free. We use this agent here to monitor known system problems before they take the machine over. The agent can be easily configured to monitor the number of a given process running, run external scripts to check and report functional status. Examples: mountd(s) under Ultrix 4.3 which tend to fork themselves crazy and eventually fill up the process table; On our hp700s, "amd" sometimes stops working, HP VUE hangs and fails to start X, etc. http://ucd-snmp.ucdavis.edu/