ADN-MIB :: adnAtmTCAlarmState

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsADN-MIBadnAtmTCAlarmState

adnAtmTCAlarmState

Module: ADN-MIB

OID (symbolic): ADN-MIB::adnAtmTCAlarmState

OID (numeric): 1.3.6.1.4.1.637.3.1.4.37.1.50.1.1

Node type: OBJECT-TYPE

Type: INTEGER

Access: read-only

Description: This variable indicates the state
        of alarms of the Transmission and
        Convergence part of ATM layer.
        It includes information given by
        atmTCAlarmState.
        It is a bit map represented as a sum;
        therefore, it can represent multiple
        defects simultaneously.
        The adnAtmTCNoAlarm bit should
        be set only if no other bit is set.

        The bit positions and their corresponding
        ATM core counter numbers # are:

#     Bit     Value 
------------------------------------------------------
  
.      1        adnAtmTCNoAlarm        
.                No alarm present
  
17     2        adnAtmTCCorrectedHec
.                Excessive number of cells corrected
.                through Header Error Control (HEC)

18     4         adnAtmTCUncorrectedHec
.                Excessive number of cells deleted
.                through Header Error Control (HEC)

22     8        adnAtmTCUpwardOverflow
.                Upwards cell buffer overflow
   
26     16       adnAtmTCDownwardOverflow
.                Downwards cell buffer overflow

25     32       adnAtmTCLossOfAtmSignalCounter
.                Loss of ATM signal from the ET part
.                to the LT part of the board

What is adnAtmTCAlarmState?

This OID is a bitmap that reports all active alarms in the ATM Transmission and Convergence layer, such as loss of signal, loss of frame, or loss of cell delineation. Network engineers read this value to diagnose physical layer and framing problems on the ATM interface. For example, a value of 1 indicates no alarms; a value of 4 indicates a loss-of-frame alarm is active on the ATM link.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.637.3.1.4.37.1.50.1.1
snmpwalk -v2c -c public <target> ADN-MIB::adnAtmTCAlarmState

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.637.3.1.4.37.1.50.1.1.1
snmpget -v2c -c public <target> ADN-MIB::adnAtmTCAlarmState.1

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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
1.3.6.1.4privateAirPair-MIB
1.3.6.1.4.1enterprisesAirPair-MIB
Numeric OIDNameModule
1.3.6.1.4.1.637alcatelADN-MIB
1.3.6.1.4.1.637.3adnADN-MIB
1.3.6.1.4.1.637.3.1adnMIBADN-MIB
1.3.6.1.4.1.637.3.1.4adnExtensionsADN-MIB
1.3.6.1.4.1.637.3.1.4.37adnAtmMIBADN-MIB
1.3.6.1.4.1.637.3.1.4.37.1adnAtmMIBObjectsADN-MIB
1.3.6.1.4.1.637.3.1.4.37.1.50adnAtmTCTableADN-MIB
1.3.6.1.4.1.637.3.1.4.37.1.50.1adnAtmTCEntryADN-MIB
1.3.6.1.4.1.637.3.1.4.37.1.50.1.1adnAtmTCAlarmStateADN-MIB