ADN-MIB :: adnAtmAal5PerfCpiErrors

MIB Reference — IPNetwork Monitor · Updated September 14, 2026

All MIBsADN-MIBadnAtmAal5PerfCpiErrors

adnAtmAal5PerfCpiErrors

Module: ADN-MIB

OID (symbolic): ADN-MIB::adnAtmAal5PerfCpiErrors

OID (numeric): 1.3.6.1.4.1.637.3.1.4.37.1.20.1.2

Node type: OBJECT-TYPE

Type: Counter

Access: read-only

Description: The number of ATM Adaptation Layer 5 (AAL5) Common Part Convergence Sublayer (CPCS) PDUs discarded on this Virtual Channel Link (VCL) because the value of the Common Part Interface (CPI) field in the PDU trailer is not 0.

What is adnAtmAal5PerfCpiErrors?

This counter tracks AAL5 protocol data units dropped on a Virtual Channel Link because the Common Part Interface field in the PDU trailer contained an invalid value (should always be 0). Engineers monitor this to detect protocol stack failures or interoperability issues with remote endpoints. A count of 18 means 18 PDUs with invalid CPI values were detected and discarded.

Examples

Walk all instances (SNMPv2c):

snmpwalk -v2c -c public <target> 1.3.6.1.4.1.637.3.1.4.37.1.20.1.2
snmpwalk -v2c -c public <target> ADN-MIB::adnAtmAal5PerfCpiErrors

Get a specific instance (index 1):

snmpget -v2c -c public <target> 1.3.6.1.4.1.637.3.1.4.37.1.20.1.2.1
snmpget -v2c -c public <target> ADN-MIB::adnAtmAal5PerfCpiErrors.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
1.3.6.1.4.1.637.3.1.4.37.1.20adnAtmAal5PerfTableADN-MIB
1.3.6.1.4.1.637.3.1.4.37.1.20.1adnAtmAal5PerfEntryADN-MIB
1.3.6.1.4.1.637.3.1.4.37.1.20.1.2adnAtmAal5PerfCpiErrorsADN-MIB