PDF user manual for CopperEdge 150

7UDSVIn the CE150, every internal event generates an SNMP trap. Atrap is a record of the event that is captured and sent to theconfigured trap destinations for the system; it contains thesame information as the event. For a listing of all currently supportedtraps associated with each event, see Appendix C.There is no one-to-one mapping between events and traps. Becauseof the way alarms are cleared internally, one or moreevents may translate into the same trap. In these cases, one ormore data fields can be used to distinguish the traps. For example,both the DLCIStateDisabled and DLCIStateEnabled eventsresult in a frDLCIStatusChange trap being generated.To view a chronological list of the 1,000 most recent traps(events) you can use the elog or cmTrapEvent group as describedabove. The same information is also available sorted bythe type of trap or event. To access this list, use the cmTrap-Type group as described in the CopperEdge 150 CopperCraftReference and MIB Definitions manual.Traps can be sent to as many as ten different SNMP managers.The list of those designated to receive traps is contained in thecmTrapDestination table in the CopperEdge 150 CopperCraftReference and MIB Definitions manual.$ODUPVAlarms constitute one subset of events. When generated, analarm message contains the following information:• Name of the alarm (such as FanFailure)• Source (module, port, link)• Severity (Critical, Major, Minor)• Time the event occurred• Other event-specific informationAlarm SeverityAlarms are divided into three levels of severity:• Critical—A service-affecting condition that requiresimmediate corrective action. Used when the entity istotally out of service and its capability must be restored.• Major—A service-affecting condition that requires urgentcorrective action. Used when there is a severedegradation of the entity’s capability, which must berestored.• Minor—An event or condition that does not affect service,but corrective action should be taken to prevent a moreserious fault.&RSSHU(GJH,QVWDOODWLRQDQG2SHUDWLQJ*XLGH