Nortel-MsCarrier-MscPassport-AtmPnniMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-AtmPnniMIB

Category: ATM Networking, Nortel MsCarrier MscPassport

Description: Provides SNMP management objects for ATM PNNI routing protocol on Nortel MsCarrier MscPassport switches.

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What Is Nortel-MsCarrier-MscPassport-AtmPnniMIB?

Nortel-MsCarrier-MscPassport-AtmPnniMIB is a Nortel Networks MIB for the MainStreet/MsCarrier Passport family of carrier-grade ATM switches, providing management objects for the PNNI (Private Network-to-Network Interface) ATM routing protocol. It belongs to Nortel's Passport switching platform used in carrier and large enterprise ATM backbones. Its monitoring focus is on protocol/software configuration status rather than physical hardware: the mscAtmIfVptPnniRowStatusTable and mscAtmIfVptPnniProvTable expose the administrative row status and provisioning parameters (such as soft-PVC retry period and hold-off time) of PNNI components on each virtual path trunk, letting an operator confirm PNNI signaling is correctly provisioned and active on each interface. It builds on the ATM Forum's PNNI routing specification as its underlying protocol standard. It is deployed by carriers and large enterprises operating Nortel Passport ATM switches in a PNNI-routed ATM backbone. Engineers can download the Nortel-MsCarrier-MscPassport-AtmPnniMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-AtmPnniMIB. 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/MainStreet Passport ATM switches

Monitoring Examples

An administrator would check mscAtmIfVptPnniRowStatus in the mscAtmIfVptPnniRowStatusTable to confirm a PNNI component on a given virtual path trunk is active, then review mscAtmIfVptPnniSoftPvcRetryPeriod and mscAtmIfVptPnniSoftPvpAndPvcHoldOffTime in the provisioning table to verify soft-PVC recovery timing after a link flap. An unexpectedly long hold-off time combined with repeated soft-PVC retries would indicate an unstable PNNI adjacency between switches.

What Can Be Monitored

  • PNNI component row status
  • PNNI provisioning parameters
  • soft-PVC retry period
  • soft-PVC/PVP hold-off time
Imported Objects

From Nortel-MsCarrier-MscPassport-AtmCoreMIB

mscAtmIfOBJECT-IDENTITY
mscAtmIfIndexOBJECT-TYPE
mscAtmIfVptOBJECT-IDENTITY
mscAtmIfVptIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-StandardTextualConventionsMIB

Counter32
DisplayString
Gauge32
Integer32
RowStatus
StorageType
Unsigned32

From Nortel-MsCarrier-MscPassport-TextualConventionsMIB

AsciiStringIndex
FixedPoint1
Hex
HexString
NonReplicated

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Manages ATM Private Network-Network Interface (PNNI) virtual path configuration for Nortel carrier equipment.

Start monitoring Nortel MsCarrier/MainStreet Passport ATM switch (PNNI 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-AtmPnniMIB