Nortel-Magellan-Passport-AtmNetworkingMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-Magellan-Passport-AtmNetworkingMIB

Category: ATM

Description: Manages Nortel Magellan Passport ATM network-side interface routing and connectivity configuration.

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What Is Nortel-Magellan-Passport-AtmNetworkingMIB?

Nortel-Magellan-Passport-AtmNetworkingMIB is a Nortel proprietary MIB for the Magellan Passport switch family that manages ATM network-side interface routing and connectivity. It exposes routing-component provisioning tables (aRtgRowStatusTable) alongside statistics tables (aRtgStatsTable) that count routing attempts and failures for ATM connections traversing the switch. These counters make the MIB useful for monitoring the operational health of the ATM routing/signaling software on the switch, since a rising aRtgFailedRoutingAttempts against aRtgRoutingAttempts indicates congestion, misconfiguration, or downstream link/hardware problems rather than simple traffic volume. It shares the RowStatus/StorageType provisioning conventions and component-index architecture common to all Magellan Passport MIBs, reflecting ATM Forum routing concepts rather than a single IETF standard. It is used on Nortel Magellan Passport ATM switches deployed as carrier backbone or enterprise WAN nodes. Network engineers evaluating or troubleshooting this functionality can download the Nortel-Magellan-Passport-AtmNetworkingMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-Magellan-Passport-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 Magellan Passport ATM switch

Monitoring Examples

A network engineer polls aRtgStatsTable/aRtgStatsEntry to compare aRtgRoutingAttempts against aRtgFailedRoutingAttempts for a given aRtgIndex, spotting a spike in failures that suggests a downstream trunk or ATM route is unavailable. Cross-referencing aRtgRowStatusTable confirms whether the routing component itself is in an active row state. The related aRtgDnaRowStatusTable exposes per-destination-address routing table provisioning for deeper diagnosis of a specific failing destination.

What Can Be Monitored

  • ATM routing attempts
  • failed routing attempts
  • routing component row status
  • DNA routing table provisioning
  • storage type of routing entries
Imported Objects

From Nortel-Magellan-Passport-AtmCoreMIB

atmIfIndexOBJECT-TYPE
atmIfVccOBJECT-IDENTITY
atmIfVccIndexOBJECT-TYPE
atmIfVpcOBJECT-IDENTITY
atmIfVpcIndexOBJECT-TYPE
atmIfVptIndexOBJECT-TYPE
atmIfVptVccOBJECT-IDENTITY
atmIfVptVccIndexOBJECT-TYPE

From Nortel-Magellan-Passport-StandardTextualConventionsMIB

Counter32
DisplayString
Gauge32
Integer32
RowPointer
RowStatus
StorageType
Unsigned32

From Nortel-Magellan-Passport-TextualConventionsMIB

AsciiString
AsciiStringIndex
FixedPoint1
HexString
IntegerSequence
NonReplicated

From Nortel-Magellan-Passport-UsefulDefinitionsMIB

componentsOBJECT-IDENTITY
passportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Describes ATM networking attributes for Nortel Magellan Passport systems including PNNI routing.

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Download Nortel-Magellan-Passport-AtmNetworkingMIB