Nortel-MsCarrier-MscPassport-AtmIispMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-AtmIispMIB

Category: Nortel MsCarrier MscPassport

Description: Defines SNMP objects for ATM IISP (Interim Inter-Switch Signaling Protocol) on Nortel MsCarrier MscPassport switches.

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What Is Nortel-MsCarrier-MscPassport-AtmIispMIB?

This is a vendor-specific MIB from Nortel for the MSCarrier/MSC Passport ATM switching platform, covering ATM Interim Inter-Switch Signaling Protocol (IISP) used between ATM switches that do not run full PNNI. It exposes provisioning objects for IISP interfaces, including row-status tables for IISP components, a provisioning table capturing protocol version and network-side designation, and soft-PVC retry timing. Its monitoring value lies in confirming operational/administrative status of IISP signaling links via row status and validating correct IISP version and side configuration, misconfiguration of which prevents signaling adjacency and call setup. It is a Nortel-proprietary implementation of the ATM Forum's IISP signaling specification, so its correctness depends on that inter-switch signaling standard. It is deployed on legacy Nortel MSC Passport ATM switches in carrier ATM backbones using IISP for switch-to-switch signaling. Engineers can download the Nortel-MsCarrier-MscPassport-AtmIispMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-AtmIispMIB. 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 ATM switch

Monitoring Examples

An operator would poll mscAtmIfIispRowStatusTable/mscAtmIfIispRowStatusEntry to confirm mscAtmIfIispRowStatus is active for each configured interface, and check mscAtmIfIispProvTable entries for mscAtmIfIispVersion and mscAtmIfIispSide to verify matching settings between adjacent switches. A mismatched mscAtmIfIispSide or inactive row status would explain a failure to establish IISP signaling adjacency and an inability to set up ATM PVCs/SVCs across that link.

What Can Be Monitored

  • IISP interface row/administrative status
  • IISP protocol version
  • IISP network/user side configuration
  • soft-PVC retry period
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
Hex
HexString
NonReplicated

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Manages ATM Interim Inter-switch Signaling Protocol (IISP) interfaces and virtual path configurations on Nortel MsCarrier switches.

Start monitoring Nortel MSC Passport ATM switch (IISP inter-switch signaling) 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-AtmIispMIB