Nortel-MsCarrier-MscPassport-StateSummaryMIB

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Organization: Nortel Networks

Last Updated: 1999-07-30

Category: Nortel Passport WAN

Description: Provides aggregate operational and administrative state summary objects for Nortel MsCarrier Passport components.

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What Is Nortel-MsCarrier-MscPassport-StateSummaryMIB?

This MIB module provides the state-summary functionality for Nortel MsCarrier MscPassport switches (the successor branding of the Magellan Passport platform), aggregating operational health across all component classes on the node into a single summarized view, per its module description. It exposes a component-class table (mscCompClassTable) tracking, per class, the number of components down (mscNumberDown) and troubled (mscNumberTroubled), along with timestamps of the last state and table changes. This is a direct hardware/software health-monitoring MIB, giving operators an immediate top-level indication of switch-wide fault conditions across cards, links, and software processes without walking each individual component MIB. It rolls up state information from the many other MsCarrier Passport component MIBs (ATM, file system, LAN drivers, etc.), depending conceptually on the shared state/row-status conventions used throughout that MIB suite. It is typically used as the first-line health dashboard for monitoring a Nortel MsCarrier MscPassport switch. Engineers can download the Nortel-MsCarrier-MscPassport-StateSummaryMIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in Nortel-MsCarrier-MscPassport-StateSummaryMIB. 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

Monitoring Examples

An operator would poll mscCompClassTable/mscCompClassEntry to read mscNumberDown and mscNumberTroubled for each mscCompClass, quickly identifying which component category (e.g., trunk cards, LAN drivers) has active faults. Checking mscTimeOfLastStateStatusChange and mscTimeOfLastTableChange helps correlate a detected alarm with the most recent state transition. A nonzero mscNumberDown for a critical component class would prompt deeper investigation into the corresponding subsystem MIB.

What Can Be Monitored

number of components down per class
number of components troubled per class
time of last state status change
time of last table change
component class name

Imported Objects

From Nortel-MsCarrier-MscPassport-UsefulDefinitionsMIB

mscComponents	OBJECT-IDENTITY
mscPassportMIBs	OBJECT-IDENTITY

From RFC1155-SMI

TimeTicks

From SNMPv2-SMI

Gauge32
MODULE-IDENTITY
OBJECT-TYPE

From SNMPv2-TC

DisplayString

How to Use in IPNetwork Monitor

Example using mscNumberDown OID:

Select a Nortel MsCarrier MscPassport switch (switch-wide component state summary) as the target host to create a monitor — the SNMP service should be up and running on it. Click New Monitor, then check SNMP Custom on the Favorites tab, click Next, and confirm the host. On the next page, click Select... to open the built-in SNMP MIB Browser and type mscNumberDown into the Find box to locate it in the OID tree, selecting the specific row/instance you want to monitor since this is a table column, then select it and click OK. The number of component instances that are down. On the monitor's Main parameters page you can set the target's SNMP port (default 161), credentials, polling interval, and other settings — see the SNMP Monitor help for details. On the State conditions and Alerting tabs, configure when the monitor should change state and trigger an alert; since this is a Gauge32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases sharply between polls relative to its normal baseline, since an unexpected spike often reflects a real change in traffic or activity. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
mscStateSummary	1.3.6.1.4.1.562.36.2.1.5
mscTimeOfLastTableChange	1.3.6.1.4.1.562.36.2.1.5.1
TIK mscTimeOfLastStateSummTableChange	1.3.6.1.4.1.562.36.2.1.5.1.1	TimeTicks	read-only	The value of sysUpTime at the time that an entry in the mscCompClassTable detected a change.
mscCompClassTable	1.3.6.1.4.1.562.36.2.1.5.2		not-accessible	A list of component classes that have state information summaries.
mscCompClassEntry	1.3.6.1.4.1.562.36.2.1.5.2.1		not-accessible	A component class entry.
OID mscCompClass	1.3.6.1.4.1.562.36.2.1.5.2.1.1	OBJECT IDENTIFIER	read-only	An object identifier which points to the SNMP Mib Arc for that particular component class. For example, a replication of 1.3.6.1.4.1.562.36.2.1.12 (iso.org.dod. internet.private.enterprises.nortel.mscCarrier.mscPassport. mscComponents.mscLp) corresponds to the Lp component class.
STR mscCompName	1.3.6.1.4.1.562.36.2.1.5.2.1.2	DisplayString	read-only	The string representation of the component class object identifier. For example, 1.3.6.1.4.1.562.36.2.1.12 (iso.org. dod.internet.private.enterprises.nortel.mscCarrier.mscPassport. mscComponents.mscLp) is represented as the string, LogicalProcessor.
TIK mscTimeOfLastStateStatusChange	1.3.6.1.4.1.562.36.2.1.5.2.1.3	TimeTicks	read-only	The value of sysUpTime when an OsiState or OsiStateStatus change was detected for the component class. Currently monitored attributes include: AdminState, OperationalState, AvailabilityStatus and AlarmStatus.
G32 mscNumberDownEx	1.3.6.1.4.1.562.36.2.1.5.2.1.4	Gauge32	read-only	The number of component instances that are down. A component is considered down when its administrative state is locked or its operational state is disabled.
G32 mscNumberTroubled	1.3.6.1.4.1.562.36.2.1.5.2.1.5	Gauge32	read-only	The number of component instances that are troubled. A component is considered troubled when its administrative status is shuttingDown or its alarm status is not empty or its availability status is degraded.
stateSummaryMIB	1.3.6.1.4.1.562.36.2.2.7			This MIB module specifies the variables used to implement the Nortel MsCarrier MscPassport state summary functionality.
stateSummaryGroupCA01A	1.3.6.1.4.1.562.36.2.2.7.1.1.2.2
stateSummaryCapabilitiesCA01A	1.3.6.1.4.1.562.36.2.2.7.3.1.2.2

RFC description

Nortel MsCarrier MscPassport state summary tracking component class state changes and operational status.

Start monitoring Nortel MsCarrier MscPassport switch (switch-wide component state summary) 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-StateSummaryMIB