DEC-ELAN-MIB :: eMACTransmitUnderruns

MIB Reference — IPNetwork Monitor · Updated October 05, 2026

All MIBs › DEC-ELAN-MIB › eMACTransmitUnderruns

eMACTransmitUnderruns

Module: DEC-ELAN-MIB

OID (symbolic): DEC-ELAN-MIB::eMACTransmitUnderruns

OID (numeric): 1.3.6.1.4.1.36.2.18.1.1.2.1.1.21

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: The number of times an underrun occured because the device's transmit FIFO became empty due to insufficient memory. In other words, the device was trying to transmit but could not get into memory fast enough.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.36.2.18.1.1.2.1.1.21
snmpwalk -v2c -c public <target> DEC-ELAN-MIB::eMACTransmitUnderruns

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.36.2.18.1.1.2.1.1.21.1
snmpget -v2c -c public <target> DEC-ELAN-MIB::eMACTransmitUnderruns.1

Start monitoring DEC/Digital ATM switch/router (legacy, LAN Emulation) with a free 30-day trial of IPNetwork Monitor. Create custom SNMP monitor using the DEC-ELAN-MIB::eMACTransmitUnderruns OID value, configure state conditions and alerts, and monitor any DEC/Digital ATM switch/router (legacy, LAN Emulation) from a single console.

OID Breakdown

Upper-level ancestors (9 from the standard OID tree / other modules)
Numeric OIDNameModule
1isoLANART-AGENT
1.3orgAirPair-MIB
1.3.6dodAirPair-MIB
1.3.6.1internetAirPair-MIB
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
1.3.6.1.4.1.36decCMU-MIB
1.3.6.1.4.1.36.2emaDEC-ATM-CHASSIS-MIB
1.3.6.1.4.1.36.2.18decMIBextensionDEC-ATM-CHASSIS-MIB
Numeric OIDNameModule
1.3.6.1.4.1.36.2.18.1elanextDEC-ELAN-MIB
1.3.6.1.4.1.36.2.18.1.1efddiDEC-ELAN-MIB
1.3.6.1.4.1.36.2.18.1.1.2efddiMACDEC-ELAN-MIB
1.3.6.1.4.1.36.2.18.1.1.2.1efddiMACTableDEC-ELAN-MIB
1.3.6.1.4.1.36.2.18.1.1.2.1.1efddiMACEntryDEC-ELAN-MIB
1.3.6.1.4.1.36.2.18.1.1.2.1.1.21eMACTransmitUnderrunsDEC-ELAN-MIB