Example of RFC-Defined SNMP Traps and Related Enable CommandsThe following example lists the RFC-defined SNMP traps and the command used to enable each. The coldStart and warmStart traps areenabled using a single command.snmp authentication SNMP_AUTH_FAIL:SNMP Authentication failed.Request with invalid communitystring.snmp coldstart SNMP_COLD_START: Agent Initialized - SNMP COLD_START.SNMP_WARM_START:Agent Initialized - SNMP WARM_START.snmp linkdown PORT_LINKDN:changed interface state to down:%dsnmp linkup PORT_LINKUP:changed interface state to up:%dEnabling a Subset of SNMP TrapsYou can enable a subset of Dell Networking enterprise-specific SNMP traps using one of the following listed command options.To enable a subset of Dell Networking enterprise-specific SNMP traps, use the following command.• Enable a subset of SNMP traps.snmp-server enable trapsNOTE: The envmon option enables all environment traps including those traps that are enabled with the envmonsupply, envmon temperature, and envmon fan options.Example of Dell Networking Enterprise-specific SNMP TrapsEnabling an SNMP Agent to Notify Syslog ServerFailureYou can configure a network device to send an SNMP trap if an audit processing failure occurs due to loss of connectivity with the syslogserver.If a connectivity failure occurs on a syslog server that is configured for reliable transmission, an SNMP trap is sent and a message isdisplayed on the console.The SNMP trap is sent only when a syslog connection fails and the time-interval between the last syslog notification and current time isgreater than or equal to 5 minutes. This restriction also applies to the console message.NOTE: If a syslog server failure event is generated before the SNMP agent service starts, the SNMP trap is not sent.To enable an SNMP agent to send a trap when the syslog server is not reachable, enter the following command:CONFIGURATION MODEsnmp-server enable traps snmp syslog-unreachableTo enable an SNMP agent to send a trap when the syslog server resumes connectivity, enter the following command:CONFIGURATION MODEsnmp-server enable traps snmp syslog-reachableTable 78. List of Syslog Server MIBS that have read accessMIB Object OID Object Values DescriptiondF10SysLogTraps 1.3.6.1.4.1.6027.3.30.1.1 1 = reachable2 = unreachable Specifies whether the syslogserver is reachable orunreachable.The following example shows the SNMP trap that is sent when connectivity to the syslog server is lost:DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (19738) 0:03:17.38 SNMPv2-MIB::snmpTrapOID.0 = OID: SNMPv2-794 Simple Network Management Protocol (SNMP)
