Chapter 9. SNMP Management9-2 ATLAS 800 PLUS User Manual 61200226L1-1TRAPSAn SNMP trap is a message sent by a Network Device, such as the ATLAS, toreport an operational anomaly or alarm condition.DEFINING A TRAP DESTINATION LISTFor each trap event, a trap message will be sent to each member of the Trap Desti-nation List. You can configure this list via Telnet session or VT100 menu.TheATLAS will support up to four trap destinations. By default, the destination list isempty.To configure the trap destination list, select SNMP/TRAP DESTINATION fromthe terminal menu (see Table 9-1). Options similar to the following will be dis-played.IP Address is the address of the network management station to which theATLAS will send the trap. Community is the trap community name used for theselected Network Device. Trap Filtering is a record allowing you to assign thresh-olds to each category of the ATLAS events.FILTERING TRAPSYou may disable the generation of trap events in three different ways. First, fromthe user menu, you can select SNMP/TRAP TRANSMISSION to DISABLED. IfDISABLED, the ATLAS will not generate any trap messages. Second, trap thresh-olds can be defined to disable specific trap events. Each trap event has a severitylevel (DISABLED, INFORMATIONAL, NORMAL, WARNING,MINOR, MAJOR,CRITICAL) associated with it. Consider the example of the coldStart trap, a Sys-tem Controller event. If you defined for destination 0 a trap filtering threshold ofWARNING for the System Controller, the coldStart trap would not be generatedto that destination because the coldStart severity level is defined as NORMAL.Refer to the ATLAS MIB in Appendix X for a description of each enterprise trapevent supported by the ATLAS. Finally, certain traps can be controlled thoughSNMP management of specific MIB variables supported by the ATLAS. Thesevariables will be outlined in the following sections.STANDARD TRAPSTable 9-2 describes the standard traps supported by ATLAS.Table 9-1. Trap Destination ListIP Address Community Trap Filtering0 0.0.0.0 public [+]1 0.0.0.0 public [+]2 0.0.0.0 public [+]3 0.0.0.0 public [+]