APPN-TRAP-MIB :: appnLocalTgOperStateChangeTrap

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › APPN-TRAP-MIB › appnLocalTgOperStateChangeTrap

appnLocalTgOperStateChangeTrap

Module: APPN-TRAP-MIB

OID (symbolic): APPN-TRAP-MIB::appnLocalTgOperStateChangeTrap

OID (numeric): 1.3.6.1.2.1.34.4.0.2

Node type: NOTIFICATION-TYPE

Description: When it has been enabled, this notification makes it possible for an APPN topology application to get asynchronous notifications of local TG operational state changes, and thus to reduce the frequency with which it polls for these changes.

This notification is sent whenever there is a change to the appnLocalTgOperational object in a row of the appnLocalTgTable. This notification is only sent for row creation if the row is created with a value of 'true' for appnLocalTgOperational. This notification is only sent for row deletion if the last value of appnLocalTgOperational was 'true'. In this case, the value of appnLocalTgOperational in the notification shall be 'false', since the deletion of a row indicates that the TG is no longer operational.

The notification is more than a simple 'poll me now' indication. It carries both a count of local TG topology changes, and the current operational state itself. The count of changes allows an application to detect lost notifications, either when polling or upon receiving a subsequent notification, at which point it knows it must retrieve the entire appnLocalTgTable again. This is the same count as used in the appnLocalCpCpStateChangeTrap. A lost notification could indicate a local TG CP-CP session state change or an operational state change.

Generation of this notification is controlled by the appnTrapControl object.

Examples

Send this trap to an SNMP manager — replace <manager> with the IP or hostname of your monitoring server (SNMPv2c):

snmptrap -v2c -c public <manager> '' APPN-TRAP-MIB::appnLocalTgOperStateChangeTrap
snmptrap -v2c -c public <manager> '' 1.3.6.1.2.1.34.4.0.2

Listen for incoming traps on the manager host (-f keeps it in the foreground, -Lo prints to stdout — useful for testing):

snmptrapd -f -Lo -c /dev/null authCommunity log public

Example snmptrapd log entry:

zoo11-linux.zoo [UDP: [192.168.30.111]:54969->[192.168.30.10]:162]:
  DISMAN-EVENT-MIB::sysUpTimeInstance = Timeticks: (347221177) 40 days, 4:30:11.77
  SNMPv2-MIB::snmpTrapOID.0 = OID: APPN-TRAP-MIB::appnLocalTgOperStateChangeTrap

Start monitoring Network devices implementing IETF APPN (RFC 2455) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the APPN-TRAP-MIB::appnLocalTgOperStateChangeTrap OID value, configure state conditions and alerts, and monitor any Network devices implementing IETF APPN (RFC 2455) from a single console.

OID Breakdown

Upper-level ancestors (8 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAPERTUS-NPG-MIB
1.3.6.1.2.1mib_2AXON-MIB
1.3.6.1.2.1.34snanauMIBSNA-NAU-MIB
1.3.6.1.2.1.34.4appnMIBAPPN-MIB
Numeric OIDNameModule
1.3.6.1.2.1.34.4.0appnTrapMIBAPPN-TRAP-MIB
1.3.6.1.2.1.34.4.0.2appnLocalTgOperStateChangeTrapAPPN-TRAP-MIB