Nortel-Magellan-Passport-SubnetInterfaceMIB

MIB Reference — IPNetwork Monitor · Updated October 06, 2026

All MIBs › Nortel-Magellan-Passport-SubnetInterfaceMIB

Category: IP Routing & Forwarding, Nortel Magellan Passport

Description: Defines SNMP objects for IP subnet interface configuration and statistics on Nortel Magellan Passport switches.

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What Is Nortel-Magellan-Passport-SubnetInterfaceMIB?

This MIB is part of Nortel's Magellan Passport (Passport/DPN-100) wide-area switch family and defines objects for configuring and monitoring IP subnet interfaces carried over the switch's virtual circuit service (VCS). It covers configuration data such as row-status-controlled VCS component tables, storage type, and accounting/segment-size options, alongside the subnet interface group used for interface-level statistics. As a subnet interface MIB, its primary monitoring value is interface- and virtual-circuit-level operational status -- confirming a configured VCS component is active via row status, and that accounting parameters like segment size and units-counted are correctly applied for traffic accounting purposes. It builds on Nortel's broader Magellan Passport MIB family and general RowStatus/SNMPv2 conventions rather than external IETF interface MIBs. It is deployed on Nortel Magellan Passport switches used in carrier and enterprise WAN backbones for framed/cell-relay and IP subnet transport. Engineers can download the Nortel-Magellan-Passport-SubnetInterfaceMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-Magellan-Passport-SubnetInterfaceMIB. 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 WAN switches

Monitoring Examples

An engineer would check modVcsRowStatusTable/modVcsRowStatusEntry to confirm a given VCS component (identified by modVcsComponentName and modVcsIndex) is in the active row state -- a stuck "notInService" status would explain why an IP subnet interface isn't passing traffic. modVcsAccOptTable entries such as modVcsSegmentSize and modVcsUnitsCounted would be checked to verify accounting configuration matches billing expectations, while modVcsAccountingFax indicates whether fax-related accounting is enabled for that virtual circuit.

What Can Be Monitored

  • VCS component row/operational status
  • subnet interface configuration
  • accounting segment size
  • traffic accounting units counted
  • virtual circuit storage type
Imported Objects

From Nortel-Magellan-Passport-ShelfMIB

modOBJECT-IDENTITY
modIndexOBJECT-TYPE

From Nortel-Magellan-Passport-StandardTextualConventionsMIB

DisplayString
Integer32
RowStatus
StorageType
Unsigned32

From Nortel-Magellan-Passport-UsefulDefinitionsMIB

passportMIBsOBJECT-IDENTITY

From RFC-1212

OBJECT-TYPE
OIDs

RFC description

Nortel vendor-private MIB for Magellan Passport subnet interface configuration and management.

Start monitoring Nortel Magellan Passport switches 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-Magellan-Passport-SubnetInterfaceMIB