Nortel-MsCarrier-MscPassport-TdmaIwfMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-TdmaIwfMIB

Category: Nortel Passport WAN

Description: Manages TDMA Interworking Function (IWF) resources and call parameters on Nortel MsCarrier Passport mobile carrier switches.

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What Is Nortel-MsCarrier-MscPassport-TdmaIwfMIB?

This Nortel MsCarrier MscPassport MIB manages TDMA Interworking Function (IWF) resources used in mobile/cellular carrier deployments of the Passport switch, handling call setup parameters between TDMA wireless networks and the Passport's switching fabric. It exposes provisioning tables for IWF call-service components, including modem-related interworking objects and call setup timers (T-IWF1, T-IWF2, T303) that govern signaling behavior during call establishment. Monitoring here focuses on confirming IWF service components remain actively provisioned and that their call-setup timer configuration is correct, since timer mismatches can cause call setup failures between the mobile network and the IWF; no CPU, memory, or temperature objects are exposed. It depends on TDMA/IS-136-style mobile signaling conventions and Nortel's modem interworking design layered on the shared Passport component model. It is deployed by mobile carriers using Nortel MsCarrier Passport switches to interwork TDMA cellular calls with wireline/data networks. Engineers can download the Nortel-MsCarrier-MscPassport-TdmaIwfMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-TdmaIwfMIB. 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 MscPassport switch (TDMA interworking function)

Monitoring Examples

An engineer would check mscTdmaCsRowStatusTable/mscTdmaCsRowStatusEntry to confirm a TDMA call-service component is active, and inspect mscTdmaCsServProvTable for the configured mscTdmaCsTIwf1, mscTdmaCsTIwf2 and mscTdmaCsT303 timer values. If mobile calls routed through the IWF are failing to establish, timer misconfiguration relative to the far-end mobile switching center is a likely first suspect. mscTdmaCsModem-related objects would be checked when interworking failures appear tied to modem negotiation rather than signaling timers.

What Can Be Monitored

  • IWF call-service row status
  • call setup timers (T-IWF1, T-IWF2, T303)
  • modem interworking configuration
  • call-service provisioning index
Imported Objects

From Nortel-MsCarrier-MscPassport-StandardTextualConventionsMIB

Counter32
DisplayString
Gauge32
Integer32
RowPointer
RowStatus
StorageType
Unsigned32

From Nortel-MsCarrier-MscPassport-TextualConventionsMIB

AsciiString
FixedPoint2
Link
NonReplicated

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscComponentsOBJECT-IDENTITY
mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE

From RFC1155-SMI

IpAddress
OIDs

RFC description

Nortel MSC Passport platform MIB for TDMA (Time Division Multiple Access) interworking function management. Provides objects for monitoring and managing TDMA to GSM/cellular network protocol conversion.

Start monitoring Nortel MsCarrier MscPassport switch (TDMA mobile interworking function) 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-TdmaIwfMIB