Example of Viewing Changed Interface State for Monitored PortsLayer 3 LAG does not include this support. SNMP trap works for the Layer 2 / Layer 3 / default mode LAG.SNMPv2-MIB::sysUpTime.0 = Timeticks: (8500842) 23:36:48.42SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDownIF-MIB::ifIndex.33865785 = INTEGER: 33865785SNMPv2-SMI::enterprises.6027.3.1.1.4.1.2 = STRING: "OSTATE_DN: Changed interface state to down:Te 1/1"2010-02-10 14:22:39 10.16.130.4 [10.16.130.4]:SNMPv2-MIB::sysUpTime.0 = Timeticks: (8500842) 23:36:48.42SNMPv2-MIB::snmpTrapOID.0 = OID: IF-MIB::linkDownIF-MIB::ifIndex.1107755009 = INTEGER: 1107755009SNMPv2-SMI::enterprises.6027.3.1.1.4.1.2 = STRING: "OSTATE_DN: Changed interface state to down:Po 1"2010-02-10 14:22:40 10.16.130.4 [10.16.130.4]:SNMPv2-MIB::sysUpTime.0 = Timeticks: (8500932) 23:36:49.32 SNMPv2-MIB::snmpTrapOID.0 = OID:IF-MIB::linkUp IF-MIB::ifIndex.33865785 = INTEGER: 33865785 SNMPv2-SMI::enterprises.6027.3.1.1.4.1.2 =STRING: "OSTATE_UP: Changed interface state to up: Te 1/1"2010-02-10 14:22:40 10.16.130.4 [10.16.130.4]:SNMPv2-MIB::sysUpTime.0 = Timeticks: (8500934) 23:36:49.34 SNMPv2-MIB::snmpTrapOID.0 = OID:IF-MIB::linkUp IF-MIB::ifIndex.1107755009 = INTEGER: 1107755009SNMPv2-SMI::enterprises.6027.3.1.1.4.1.2 = STRING: "OSTATE_UP: Changed interface state to up:Po 1"Enabling 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 104. 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-SMI::enterprises.6027.3.30.1.1.1 SNMPv2-SMI::enterprises.6027.3.30.1.1 = STRING:892 Simple Network Management Protocol (SNMP)
