Nortel-MsCarrier-MscPassport-OamEthernetMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

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Category: Nortel MsCarrier MscPassport

Description: Provides SNMP objects for OAM management on Ethernet interfaces of Nortel MsCarrier MscPassport switches.

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What Is Nortel-MsCarrier-MscPassport-OamEthernetMIB?

This MIB is a vendor-specific module from Nortel for its MSCarrier/MSC Passport (multi-service switching/carrier) platform, providing Operations, Administration, and Maintenance (OAM) management for Ethernet interfaces. It exposes row-status-controlled tables for configuring OAM entities on Ethernet ports, including component naming, storage type, and a customer-identifier (CID) association table, alongside an interface-entry table linking OAM instances to underlying Ethernet interfaces. This is primarily a configuration/provisioning MIB for the Ethernet OAM feature, letting an operator monitor the software-level state of OAM entity rows (active, notInService, notReady) to confirm OAM monitoring is correctly provisioned and associated with the right customer and interface, as well as an explicit OAM test object group for running OAM diagnostic tests. It is built within Nortel's private MsCarrier/MscPassport enterprise MIB hierarchy and conceptually parallels IEEE 802.3ah / ITU-T Y.1731 Ethernet OAM standards it manages. It is typically deployed on Nortel Passport carrier-class Ethernet switches used by service providers for customer-facing Ethernet OAM. Engineers can download the Nortel-MsCarrier-MscPassport-OamEthernetMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-OamEthernetMIB. Use the built-in SNMP Monitoring Browser to explore available variables, view their current values and descriptions, and select the objects you want to monitor. You can then create SNMP monitors, configure thresholds, and receive alerts when monitored values change.

Supported Devices

  • Nortel MSC Passport carrier multi-service switching platform

Monitoring Examples

An operator would poll mscLpOamEnetRowStatusTable/mscLpOamEnetRowStatusEntry, keyed by mscLpOamEnetIndex, to confirm mscLpOamEnetRowStatus is active for a given OAM instance and that mscLpOamEnetComponentName and mscLpOamEnetStorageType match the intended provisioning. mscLpOamEnetCidDataTable/mscLpOamEnetCidDataEntry would be checked to confirm mscLpOamEnetCustomerIdentifier correctly ties an OAM instance to the right customer circuit. mscLpOamEnetIfEntryTable links OAM entities to specific Ethernet interfaces, useful for tracing which physical port an OAM alarm relates to, while the mscLpOamEnetTest group supports triggering on-demand OAM diagnostic tests.

What Can Be Monitored

  • OAM entity row status
  • OAM component/storage configuration
  • customer identifier to OAM instance mapping
  • OAM-to-interface association
  • on-demand OAM test execution
Imported Objects

From Nortel-MsCarrier-MscPassport-LogicalProcessorMIB

mscLpOBJECT-IDENTITY
mscLpIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-StandardTextualConventionsMIB

Counter32
DisplayString
Integer32
InterfaceIndex
MacAddress
RowStatus
StorageType
Unsigned32

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Configures OAM Ethernet port on Nortel MsCarrier MscPassport control processor for operations and maintenance.

Start monitoring Nortel MSC Passport switching platforms with a free 30-day trial of IPNetwork Monitor. Import MIBs, browse SNMP OIDs, create custom SNMP monitors, configure alerts, and monitor any SNMP-enabled network device from a single console.

Download Nortel-MsCarrier-MscPassport-OamEthernetMIB