Nortel-MsCarrier-MscPassport-AtmBaseMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-AtmBaseMIB

Category: ATM Networking, Nortel MsCarrier MscPassport

Description: Defines foundational SNMP objects for ATM interface management on Nortel MsCarrier MscPassport mobile carrier ATM switches.

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What Is Nortel-MsCarrier-MscPassport-AtmBaseMIB?

Nortel-MsCarrier-MscPassport-AtmBaseMIB defines foundational SNMP objects for ATM interface management on Nortel MsCarrier MscPassport switches, the mobile-carrier-oriented variant of the Passport platform used in 2G/3G packet backbone networks. It exposes RowStatus provisioning tables for ATM resource components (mscLpArc) along with capacity/resource objects such as total connection pool capacity, multicast branch capacity, and transmit frame memory allocation. These resource-capacity objects give it clear hardware/software status value, since falling free capacity in mscLpArcTotalConnectionPoolCapacity or mscLpArcTxFrameMemoryAllocation is analogous to monitoring memory/resource exhaustion on the switch's ATM interface card, warning of an approaching provisioning ceiling before new connections start failing. It shares the RowStatus/component conventions of the broader MsCarrier MscPassport MIB suite, layering vendor-specific resource management atop standard ATM concepts. It is deployed on Nortel MscPassport switches forming the ATM backbone of mobile carrier packet networks. Engineers can download the Nortel-MsCarrier-MscPassport-AtmBaseMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-AtmBaseMIB. 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 MsCarrier Passport switch (mobile carrier ATM backbone)

Monitoring Examples

A capacity planner polls mscLpArcProvTable/mscLpArcProvEntry to read mscLpArcTotalConnectionPoolCapacity and mscLpArcMulticastBranchesCapacity for an ATM resource component (mscLpArcIndex), watching for utilization approaching the configured ceiling. mscLpArcTxFrameMemoryAllocation is checked when connection setup failures are reported, since exhausted transmit frame memory on the interface card is a common root cause; mscLpArcRowStatusTable/mscLpArcRowStatusEntry confirms the component remains active throughout.

What Can Be Monitored

  • ATM connection pool capacity
  • multicast branch capacity
  • transmit frame memory allocation
  • component row status
  • storage type
Imported Objects

From Nortel-MsCarrier-MscPassport-LogicalProcessorMIB

mscLpOBJECT-IDENTITY
mscLpEngOBJECT-IDENTITY
mscLpEngIndexOBJECT-TYPE
mscLpIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-StandardTextualConventionsMIB

DisplayString
Gauge32
Integer32
RowStatus
StorageType
Unsigned32

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Nortel MSCarrier MSC Passport ATM base MIB for managing ATM interface and switching operations.

Start monitoring Nortel MsCarrier Passport switches 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-AtmBaseMIB