NNCBELLCOREGR820DS1STATISTICS-MIB

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Organization: Newbridge Networks Corporation

Last Updated: 1999-02-15

Category: ATM

Description: Monitors Newbridge Networks DS1 performance statistics conforming to Bellcore GR-820 interval reporting.

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What Is NNCBELLCOREGR820DS1STATISTICS-MIB?

NNCBELLCOREGR820DS1STATISTICS-MIB is a Newbridge Networks MIB that provides DS1 (T1) line performance statistics conforming to the Bellcore/Telcordia GR-820 standard for interval-based reporting. It exposes performance counters for DS1 lines such as errored seconds, severely errored seconds, and other line-quality metrics collected over standard 15-minute and 24-hour reporting intervals. Its monitoring focus is on physical-layer/hardware transmission quality rather than device internals, letting administrators detect DS1 circuit degradation, framing errors, or loss-of-signal conditions before they escalate into a full outage. It explicitly depends on the Bellcore GR-820 standard for its statistical model and interval structure, aligning it with telecom industry conventions for T1/DS1 performance reporting. It is typically deployed on Newbridge Networks telecom access or transport equipment terminating DS1 circuits. Engineers can download the NNCBELLCOREGR820DS1STATISTICS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in NNCBELLCOREGR820DS1STATISTICS-MIB. 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

Newbridge Networks DS1/T1 access or transport equipment

Monitoring Examples

An administrator would poll the GR-820 DS1 statistics tables for a given DS1 interface to retrieve counts of errored seconds and severely errored seconds within the current 15-minute interval, comparing them against historical 24-hour interval data. A sudden increase in errored-seconds counts would reveal a DS1 line quality problem such as a cabling fault or carrier-side circuit degradation. No specific object/table names were captured in the sample set, so this reflects the standard GR-820 statistic categories rather than confirmed identifiers.

What Can Be Monitored

DS1 errored seconds
DS1 severely errored seconds
15-minute interval DS1 statistics
24-hour interval DS1 statistics

Imported Objects

From IF-MIB

ifIndex

OBJECT-TYPE

From NNCGNI0001-SMI

nncExtensions

OBJECT-IDENTITY

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
MODULE-IDENTITY
OBJECT-TYPE

How to Use in IPNetwork Monitor

Example using nncBellcoreGR820Ds1CurrLineCV OID:

Select a Newbridge Networks DS1/T1 access or transport equipment (GR-820 statistics) 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 nncBellcoreGR820Ds1CurrLineCV 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 Line Code Violations encountered by a DS1 interface in the current 15-minute interval. 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 Counter32-type OID, Value bounds is the most useful condition here — trigger an alert if the counter increases between polls, since a rising count of errors, failures, or discards often points to a real underlying problem. Click Finish to create the monitor; you can adjust any parameter later.

OIDs

OID symbolic	OID numeric	Type	Access	Description
nncBellcoreGR820Ds1Statistics	1.3.6.1.4.1.123.3.70			This module contains the definitions for the Bellcore GR820 statistics for DS1 lines.
nncBellcoreGR820Ds1StatisticsObjects	1.3.6.1.4.1.123.3.70.1
nncBellcoreGR820Ds1CurrStatsTable	1.3.6.1.4.1.123.3.70.1.1		not-accessible	The Bellcore-GR820Ds1 Current Statistics table maintains per-interfce statistics for the fifteen-minute interval currently being collected.
nncBellcoreGR820Ds1CurrStatsEntry	1.3.6.1.4.1.123.3.70.1.1.1		not-accessible	An entry in the Bellcore-GR820Ds1 Current Statistics table
C32 nncBellcoreGR820Ds1CurrLineCVEx	1.3.6.1.4.1.123.3.70.1.1.1.1	Counter32	read-only	The number of Line Code Violations encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrLineES	1.3.6.1.4.1.123.3.70.1.1.1.2	Counter32	read-only	The number of Line Errored Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrLineLOSS	1.3.6.1.4.1.123.3.70.1.1.1.3	Counter32	read-only	The number of Line Loss of Signal Seconds encountered by a DS1 interface in the current 15-minute inetrval.
C32 nncBellcoreGR820Ds1CurrPathCV	1.3.6.1.4.1.123.3.70.1.1.1.4	Counter32	read-only	The number of Path Code Violations encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathES	1.3.6.1.4.1.123.3.70.1.1.1.5	Counter32	read-only	The number of Path Errored Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathSES	1.3.6.1.4.1.123.3.70.1.1.1.6	Counter32	read-only	The number of Path Severely Errored Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathAISS	1.3.6.1.4.1.123.3.70.1.1.1.7	Counter32	read-only	The number of Path Alarm Indication Signal Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathCSS	1.3.6.1.4.1.123.3.70.1.1.1.8	Counter32	read-only	The number of Path Controlled Slip Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathUAS	1.3.6.1.4.1.123.3.70.1.1.1.9	Counter32	read-only	The number of Path Unavailable Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathSAS	1.3.6.1.4.1.123.3.70.1.1.1.10	Counter32	read-only	The number of Path Severely Errored Frame/ Alarm Indication Signal Seconds encountered by a DS1 interface in the current 15-minute interval.
C32 nncBellcoreGR820Ds1CurrPathFC	1.3.6.1.4.1.123.3.70.1.1.1.11	Counter32	read-only	The count of Path Failure events encountered by a DS1 interface in the current 15-minute interval.
nncBellcoreGR820Ds1IntervalStatsTable	1.3.6.1.4.1.123.3.70.1.2		not-accessible	The Bellcore-GR820Ds1 Interval Statistics table maintains per-interfce statistics for the last 96 fifteen-minute intervals
nncBellcoreGR820Ds1IntervalStatsEntry	1.3.6.1.4.1.123.3.70.1.2.1		not-accessible	An entry in the Bellcore-GR820Ds1 Interval Statistics table
INT nncBellcoreGR820Ds1IntervalIndex	1.3.6.1.4.1.123.3.70.1.2.1.1	INTEGER	read-only	A number between 1 and 96, which identifies the interval for which the set of statistics in this entry was collected. The interval identified by 1 is the most recently completed 15 minute interval, and the interval identified by 96 is the least recently completed 15 minute interval (assuming that all 96 inetrvals are valid).
C32 nncBellcoreGR820Ds1IntervalLineCV	1.3.6.1.4.1.123.3.70.1.2.1.2	Counter32	read-only	The number of Line Code Violations encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalLineES	1.3.6.1.4.1.123.3.70.1.2.1.3	Counter32	read-only	The number of Line Errored Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalLineLOSS	1.3.6.1.4.1.123.3.70.1.2.1.4	Counter32	read-only	The number of Line Loss of Signal Seconds encountered by a DS1 interface in one of the previous 15-minute inetrvals.
C32 nncBellcoreGR820Ds1IntervalPathCV	1.3.6.1.4.1.123.3.70.1.2.1.5	Counter32	read-only	The number of Path Code Violations encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathES	1.3.6.1.4.1.123.3.70.1.2.1.6	Counter32	read-only	The number of Path Errored Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathSES	1.3.6.1.4.1.123.3.70.1.2.1.7	Counter32	read-only	The number of Path Severely Errored Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathAISS	1.3.6.1.4.1.123.3.70.1.2.1.8	Counter32	read-only	The number of Path Alarm Indication Signal Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathCSS	1.3.6.1.4.1.123.3.70.1.2.1.9	Counter32	read-only	The number of Path Controlled Slip Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathUAS	1.3.6.1.4.1.123.3.70.1.2.1.10	Counter32	read-only	The number of Path Unavailable Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathSAS	1.3.6.1.4.1.123.3.70.1.2.1.11	Counter32	read-only	The number of Path Severely Errored Frame/ Alarm Indication Signal Seconds encountered by a DS1 interface in one of the previous 15-minute intervals.
C32 nncBellcoreGR820Ds1IntervalPathFC	1.3.6.1.4.1.123.3.70.1.2.1.12	Counter32	read-only	The count of Path Failure events encountered by a DS1 interface in one of the previous 15-minute intervals.
nncBellcoreGR820Ds1TotalStatsTable	1.3.6.1.4.1.123.3.70.1.3		not-accessible	The Bellcore-GR820Ds1 Total Statistics table contains the per-interface cumulative sum of the various statistics for the 24-hour period preceding the current 15-minute interval.
nncBellcoreGR820Ds1TotalStatsEntry	1.3.6.1.4.1.123.3.70.1.3.1		not-accessible	An entry in the Bellcore-GR820Ds1 Total Statistics table
C32 nncBellcoreGR820Ds1TotalLineCV	1.3.6.1.4.1.123.3.70.1.3.1.1	Counter32	read-only	The number of Line Code Violations encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalLineES	1.3.6.1.4.1.123.3.70.1.3.1.2	Counter32	read-only	The number of Line Errored Seconds encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalLineLOSS	1.3.6.1.4.1.123.3.70.1.3.1.3	Counter32	read-only	The number of Line Loss of Signal Seconds encountered by a DS1 interface in the previous 24-hour inetrval.
C32 nncBellcoreGR820Ds1TotalPathCV	1.3.6.1.4.1.123.3.70.1.3.1.4	Counter32	read-only	The number of Path Code Violations encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalPathES	1.3.6.1.4.1.123.3.70.1.3.1.5	Counter32	read-only	The number of Path Errored Seconds encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalPathSES	1.3.6.1.4.1.123.3.70.1.3.1.6	Counter32	read-only	The number of Path Severely Errored Seconds encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalPathAISS	1.3.6.1.4.1.123.3.70.1.3.1.7	Counter32	read-only	The number of Path Alarm Indication Signal Seconds encountered by a DS1 interface in the previous 24-hour inetrval.
C32 nncBellcoreGR820Ds1TotalPathCSS	1.3.6.1.4.1.123.3.70.1.3.1.8	Counter32	read-only	The number of Path Controlled Slip Seconds encountered by a DS1 interface in the previous 24-hour
C32 nncBellcoreGR820Ds1TotalPathUAS	1.3.6.1.4.1.123.3.70.1.3.1.9	Counter32	read-only	The number of Path Unavailable Seconds encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalPathSAS	1.3.6.1.4.1.123.3.70.1.3.1.10	Counter32	read-only	The number of Path Severely Errored Frame/ Alarm Indication Signal Seconds encountered by a DS1 interface in the previous 24-hour interval.
C32 nncBellcoreGR820Ds1TotalPathFC	1.3.6.1.4.1.123.3.70.1.3.1.11	Counter32	read-only	The count of Path Failure events encountered by a DS1 interface in the previous 24-hour interval.
nncBellcoreGR820Ds1StatisticsGroups	1.3.6.1.4.1.123.3.70.2
nncBellcoreGR820Ds1CurrStatsGroup	1.3.6.1.4.1.123.3.70.2.1			A collection of objects providing 15 Min current monitoring data for Ds1 interfaces based on Bellcore-GR820Ds1 specification
nncBellcoreGR820Ds1IntervalStatsGroup	1.3.6.1.4.1.123.3.70.2.2			A collection of objects providing 15 Min history monitoring data for Ds1 interfaces based on Bellcore-GR820Ds1 specification
nncBellcoreGR820Ds1TotalStatsGroup	1.3.6.1.4.1.123.3.70.2.3			A collection of objects providing a cumulative sum of monitoring data for the previous 24-hour for Ds1 interfaces based on Bellcore-GR820Ds1 specification
nncBellcoreGR820Ds1StatisticsCompliances	1.3.6.1.4.1.123.3.70.3
nncBellcoreGR820Ds1StatisticsCompliance	1.3.6.1.4.1.123.3.70.3.1			The complicance statement for Newbridge SNMP entities which have Ds1 Performance monitoring capabilities

RFC description

Bellcore GR-820 DS1 statistics for Newbridge equipment, tracking line errors, path metrics, and performance counters.

Start monitoring Newbridge Networks DS1/T1 access or transport equipment (GR-820 statistics) 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 NNCBELLCOREGR820DS1STATISTICS-MIB