Nortel-MsCarrier-MscPassport-AtmEbrMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-MsCarrier-MscPassport-AtmEbrMIB

Category: Nortel MsCarrier MscPassport

Description: Provides SNMP objects for ATM Enhanced Bit Rate (EBR) service management on Nortel MsCarrier MscPassport switches.

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What Is Nortel-MsCarrier-MscPassport-AtmEbrMIB?

Nortel-MsCarrier-MscPassport-AtmEbrMIB provides SNMP objects for ATM Enhanced Bit Rate (EBR) service management on Nortel MsCarrier MscPassport switches, a bandwidth-management feature for ATM Virtual Path Connections (VPCs) that allows bit rate to be adjusted based on subscribed recovery and optimization behavior. It defines row status/provisioning tables for VPC-source EBR overflow (Ov) components and for aggregate VPC EBR information, including flags indicating whether recovery and optimization features are subscribed for a given VPC. This lets an operator monitor whether EBR bandwidth-management components are provisioned and active on specific ATM VPCs, and confirm which bandwidth-adaptation behaviors are enabled -- a configuration and performance-monitoring function for the ATM switching fabric's bandwidth allocation logic. It depends on ATM Forum/ITU-T ATM VPC concepts for its semantics, in addition to the Passport RowStatus/StorageType conventions. It is used on Nortel MsCarrier MscPassport ATM switches in carrier backbone networks offering variable/enhanced bit rate ATM services. Network engineers evaluating or troubleshooting this functionality can download the Nortel-MsCarrier-MscPassport-AtmEbrMIB file directly to load it into their MIB browser.

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

Monitoring Examples

An operator polls mscAtmIfVpcSrcEbrOvRowStatusTable and mscAtmIfVpcSrcEbrOvProvTable to confirm an EBR overflow component is active on a given VPC, then checks mscAtmIfVpcSrcEbrOvRecoverySubscribed and mscAtmIfVpcSrcEbrOvOptimizationSubscribed to see which bandwidth-adaptation behaviors are enabled. Cross-referencing mscAtmIfVpcEbrInfoRowStatusTable provides aggregate EBR status for the VPC as a whole. A VPC configured for recovery but showing frequent overflow events would suggest the path is consistently exceeding its baseline bit rate.

What Can Be Monitored

  • VPC EBR overflow component status
  • recovery-subscribed flag
  • optimization-subscribed flag
  • aggregate VPC EBR 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-AtmIispMIB

mscAtmIfIispOBJECT-IDENTITY
mscAtmIfIispIndexOBJECT-TYPE
mscAtmIfVptIispOBJECT-IDENTITY
mscAtmIfVptIispIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-AtmNetworkingMIB

mscAtmIfVccSrcOBJECT-IDENTITY
mscAtmIfVccSrcIndexOBJECT-TYPE
mscAtmIfVpcSrcOBJECT-IDENTITY
mscAtmIfVpcSrcIndexOBJECT-TYPE
mscAtmIfVptVccSrcOBJECT-IDENTITY
mscAtmIfVptVccSrcIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-AtmPnniMIB

mscAtmIfPnniOBJECT-IDENTITY
mscAtmIfPnniIndexOBJECT-TYPE
mscAtmIfVptPnniOBJECT-IDENTITY
mscAtmIfVptPnniIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-AtmUniMIB

mscAtmIfUniOBJECT-IDENTITY
mscAtmIfUniIndexOBJECT-TYPE
mscAtmIfVptUniOBJECT-IDENTITY
mscAtmIfVptUniIndexOBJECT-TYPE

From Nortel-MsCarrier-MscPassport-StandardTextualConventionsMIB

Counter32
DisplayString
Gauge32
RowStatus
StorageType

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscPassportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Nortel vendor-private MIB for ATM EBR (Enhanced Bit Rate) services on MSC Passport carrier platforms; manages ATM service quality and performance.

Start monitoring Nortel MsCarrier MscPassport ATM switch (Enhanced Bit Rate bandwidth management) 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-AtmEbrMIB