DOT3-EPON-MIB :: dot3ExtPkgOptIfTransmitAlarm

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsDOT3-EPON-MIBdot3ExtPkgOptIfTransmitAlarm

dot3ExtPkgOptIfTransmitAlarm

Module: DOT3-EPON-MIB

OID (symbolic): DOT3-EPON-MIB::dot3ExtPkgOptIfTransmitAlarm

OID (numeric): 1.3.6.1.2.1.155.1.4.1.5.1.13

Node type: OBJECT-TYPE

Type: TruthValue

Access: read-only

Description: When getting true(1) there is a non-valid optical signal at the transmit of the interface, either a higher level or lower level than expected. When getting false(2) the optical signal at the transmit is valid and in the required range. This object is applicable for an OLT and an ONU. At the OLT, it has a distinct value for each virtual interface.

What is dot3ExtPkgOptIfTransmitAlarm?

This reports whether the transmit optical signal on this interface is currently outside its valid power range, either too high or too low (true), or normal (false). A true value flags a laser problem that needs attention before it causes downstream ONUs to lose signal.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.2.1.155.1.4.1.5.1.13
snmpwalk -v2c -c public <target> DOT3-EPON-MIB::dot3ExtPkgOptIfTransmitAlarm

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.2.1.155.1.4.1.5.1.13.1
snmpget -v2c -c public <target> DOT3-EPON-MIB::dot3ExtPkgOptIfTransmitAlarm.1

Start monitoring EPON OLT/ONU (802.3ah EPON MPCP, vendor-neutral IEEE standard) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DOT3-EPON-MIB::dot3ExtPkgOptIfTransmitAlarm OID value, configure state conditions and alerts, and monitor any EPON OLT/ONU (802.3ah EPON MPCP, vendor-neutral IEEE standard) from a single console.

OID Breakdown

Upper-level ancestors (6 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.2mgmtAXON-MIB
1.3.6.1.2.1mib_2AXON-MIB
Numeric OIDNameModule
1.3.6.1.2.1.155dot3EponMIBDOT3-EPON-MIB
1.3.6.1.2.1.155.1dot3EponObjectsDOT3-EPON-MIB
1.3.6.1.2.1.155.1.4dot3ExtPkgObjectsDOT3-EPON-MIB
1.3.6.1.2.1.155.1.4.1dot3ExtPkgControlObjectsDOT3-EPON-MIB
1.3.6.1.2.1.155.1.4.1.5dot3ExtPkgOptIfTableDOT3-EPON-MIB
1.3.6.1.2.1.155.1.4.1.5.1dot3ExtPkgOptIfEntryDOT3-EPON-MIB
1.3.6.1.2.1.155.1.4.1.5.1.13dot3ExtPkgOptIfTransmitAlarmDOT3-EPON-MIB