Nortel-MsCarrier-MscPassport-AtmNetworkingMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-AtmNetworkingMIB

Category: Nortel MsCarrier MscPassport

Description: Defines SNMP objects for ATM networking services and routing on Nortel MsCarrier MscPassport mobile carrier switches.

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What Is Nortel-MsCarrier-MscPassport-AtmNetworkingMIB?

This MIB defines ATM networking and routing services on the Nortel MSC Passport mobile carrier switch, the ATM equivalent to the routing configuration used on Magellan Passport nodes. It exposes mscARtgStatsTable with mscARtgRoutingAttempts and mscARtgFailedRoutingAttempts counters, plus DNA (address/routing) tables used to resolve ATM connection setups. This is directly a performance/fault MIB for the ATM routing engine: comparing successful versus failed routing attempts reveals congestion or misconfigured routing tables preventing ATM connections from being established. It depends on ATM Forum/ITU-T ATM signaling and routing concepts along with the shared Passport component conventions. It is deployed on MSC Passport nodes carrying ATM-switched traffic within a mobile carrier backbone network. Network engineers evaluating or troubleshooting this functionality can download the Nortel-MsCarrier-MscPassport-AtmNetworkingMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-AtmNetworkingMIB. 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 mobile carrier switch

Monitoring Examples

An engineer polls mscARtgStatsTable/mscARtgStatsEntry to compare mscARtgRoutingAttempts against mscARtgFailedRoutingAttempts for an ATM routing component (mscARtgComponentName), deriving a routing failure rate. mscARtgDna tables hold the directory-number/address routing entries used to resolve ATM connection setups. A rising ratio of mscARtgFailedRoutingAttempts to total attempts indicates ATM routing table misconfiguration or congestion preventing successful connection setup.

What Can Be Monitored

  • ATM routing attempts
  • ATM routing failures
  • ATM routing/address table entries
  • component row status
Imported Objects

From Nortel-MsCarrier-MscPassport-AtmCoreMIB

mscAtmIfIndexOBJECT-TYPE
mscAtmIfVccOBJECT-IDENTITY
mscAtmIfVccIndexOBJECT-TYPE
mscAtmIfVpcOBJECT-IDENTITY
mscAtmIfVpcIndexOBJECT-TYPE
mscAtmIfVptIndexOBJECT-TYPE
mscAtmIfVptVccOBJECT-IDENTITY
mscAtmIfVptVccIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-StandardTextualConventionsMIB

Counter32
DisplayString
Gauge32
Integer32
RowPointer
RowStatus
StorageType
Unsigned32

From Nortel-MsCarrier-MscPassport-TextualConventionsMIB

AsciiString
AsciiStringIndex
FixedPoint1
HexString
IntegerSequence
NonReplicated

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscComponentsOBJECT-IDENTITY
mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Nortel ATM networking MIB for PNNI routing, ATM end system addresses, and ATM interface management.

Start monitoring Nortel MSC Passport mobile carrier switch (ATM networking/routing) 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-AtmNetworkingMIB