SDSL-STATS-MIB

All MIBs › SDSL-STATS-MIB

Organization: Newbridge Networks Corporation

Last Updated: 1998-09-30

Category: DSL and Broadband Access

Description: Monitors Newbridge SDSL interface performance statistics including line rate, SNR, and error counts.

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What Is SDSL-STATS-MIB?

SDSL-STATS-MIB is a Newbridge Networks MIB (Newbridge was later absorbed into Alcatel) that defines statistics objects for Single-line Digital Subscriber Line (SDSL) ports on DSL access equipment such as DSLAMs. It exposes physical-layer performance data for each SDSL port, including line rate, signal-to-noise ratio (SNR), and line error counters, placing it firmly in the performance/fault-monitoring category for copper access lines. Its core monitoring value is hardware status of the DSL line: a dropping SNR margin or climbing error count reveals a degrading copper loop or noisy line before it causes a service-affecting sync loss, while the line rate confirms the port is trained at its expected speed. It is generally used alongside the vendor's chassis/slot MIB to identify the physical port and complements IETF SDSL/SHDSL-line style standard MIBs where present. It is deployed by telecom operators and ISPs monitoring the health of SDSL ports on Newbridge DSL access multiplexers in the local access network. Engineers can download the SDSL-STATS-MIB file directly to load it into their MIB browser.

IPNetwork Monitor allows you to monitor SNMP objects defined in SDSL-STATS-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 SDSL DSL access multiplexer (DSLAM)
SDSL line card/port

Monitoring Examples

No specific object or table names were provided for this module in the available source excerpt, so exact identifiers cannot be cited; based on its stated scope, an operator would typically poll a per-port SDSL statistics table for line rate and SNR margin, flagging any port whose SNR drops or error counters climb sharply as an indicator of a failing copper loop.

What Can Be Monitored

SDSL line rate
signal-to-noise ratio (SNR)
line error counts
port synchronization status

Imported Objects

From IF-MIB

ifIndex

OBJECT-TYPE

From NNCGNI0001-SMI

nncExtensions

OBJECT-IDENTITY

From SNMPv2-SMI

Counter32
Gauge32
MODULE-IDENTITY
NOTIFICATION-TYPE
OBJECT-TYPE

From SNMPv2-TC

TEXTUAL-CONVENTION
TruthValue

How to Use in IPNetwork Monitor

Example using nncSdslNearEndRawLOS OID:

Select a Newbridge SDSL DSL access multiplexer (DSLAM), SDSL line card/port (line rate/SNR/error 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 nncSdslNearEndRawLOS 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. It reports the count of the number of Loss of Signal failures since system reset. 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
nncSdslStatistics	1.3.6.1.4.1.123.3.64			This module contains definitions for SDSL Ports Stats.
nncSdslStatisticsObjects	1.3.6.1.4.1.123.3.64.1
nncSdslLineStatusTable	1.3.6.1.4.1.123.3.64.1.1		not-accessible	Table that contains the Status of all SDSL Lines.
nncSdslLineStatusEntry	1.3.6.1.4.1.123.3.64.1.1.1		not-accessible	The Status of an SDSL Line.
INT nncSdslLineStatus	1.3.6.1.4.1.123.3.64.1.1.1.1	INTEGER	read-only	Status indicates current state of the line. Unknown 0 Operational 1 Near End Loss Of Cell Delineation 2 Near End Loss Of Signal 3 Near End Loss Of Power 34
nncSdslNearEndRawTable	1.3.6.1.4.1.123.3.64.1.2		not-accessible	Table that contains the Near End RAW Stats of all SDSL Ports.
nncSdslNearEndRawEntry	1.3.6.1.4.1.123.3.64.1.2.1		not-accessible	The Near End Raw Stats of an SDSL Port.
C32 nncSdslNearEndRawLOSEx	1.3.6.1.4.1.123.3.64.1.2.1.1	Counter32	read-only	Count of the number of Loss of Signal failures since system reset.
C32 nncSdslNearEndRawLowNM	1.3.6.1.4.1.123.3.64.1.2.1.2	Counter32	read-only	Count of the number of Low Noise Margin failures since system reset.
C32 nncSdslNearEndRawLPR	1.3.6.1.4.1.123.3.64.1.2.1.3	Counter32	read-only	Count of the number of Loss of Power failures since system reset.
C32 nncSdslNearEndRawLOCD	1.3.6.1.4.1.123.3.64.1.2.1.4	Counter32	read-only	Count of the number of Loss of Cell Delineation failures since system reset.
C32 nncSdslNearEndRawCRCError	1.3.6.1.4.1.123.3.64.1.2.1.5	Counter32	read-only	Count of the number of CRC Errors since system reset.
nncSdslNearEndCurr15MinTable	1.3.6.1.4.1.123.3.64.1.3		not-accessible	Table that contains the Near End 15 minutes current Stats of all SDSL Ports.
nncSdslNearEndCurr15MinEntry	1.3.6.1.4.1.123.3.64.1.3.1		not-accessible	The Near End 15 minutes current Stats of an SDSL Port.
G32 nncSdslNearEndCurr15MinTimeElapsed	1.3.6.1.4.1.123.3.64.1.3.1.1	Gauge32	read-only	Total elapsed seconds in this interval. A full interval is 900 seconds.
G32 nncSdslNearEndCurr15MinLOSS	1.3.6.1.4.1.123.3.64.1.3.1.2	Gauge32	read-only	Count of the number of seconds in Loss of Signal status not due to a Loss of Power in the current 15 minutes interval.
G32 nncSdslNearEndCurr15MinLOSWS	1.3.6.1.4.1.123.3.64.1.3.1.3	Gauge32	read-only	Count of the number of seconds in Loss of Synch Word status not followed by a Loss of Signal in the current 15 minutes interval.
G32 nncSdslNearEndCurr15MinLowNMS	1.3.6.1.4.1.123.3.64.1.3.1.4	Gauge32	read-only	Count of the number of seconds in Low Noise Margin status in the current 15 minutes interval.
G32 nncSdslNearEndCurr15MinLPRS	1.3.6.1.4.1.123.3.64.1.3.1.5	Gauge32	read-only	Count of the number of seconds in Loss of Power status in the current 15 minutes interval.
G32 nncSdslNearEndCurr15MinErrS	1.3.6.1.4.1.123.3.64.1.3.1.6	Gauge32	read-only	Count of Errored Seconds in the current 15 minutes interval. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
nncSdslNearEndCurr1DayTable	1.3.6.1.4.1.123.3.64.1.4		not-accessible	Table that contains the Near End 1 Day current Stats of all SDSL Ports.
nncSdslNearEndCurr1DayEntry	1.3.6.1.4.1.123.3.64.1.4.1		not-accessible	The Near End 1 Day current Stats of an SDSL Port.
G32 nncSdslNearEndCurr1DayTimeElapsed	1.3.6.1.4.1.123.3.64.1.4.1.1	Gauge32	read-only	Number of seconds that have elapses since the beginning of the current 1 Day interval.
G32 nncSdslNearEndCurr1DayLOSS	1.3.6.1.4.1.123.3.64.1.4.1.2	Gauge32	read-only	Count of the number of seconds in Loss of Signal status not due to a Loss of Power during the current day.
G32 nncSdslNearEndCurr1DayLOSWS	1.3.6.1.4.1.123.3.64.1.4.1.3	Gauge32	read-only	Count of the number of seconds in Loss of Synch Word status not followed by a Loss of Signal during the current day.
G32 nncSdslNearEndCurr1DayLowNMS	1.3.6.1.4.1.123.3.64.1.4.1.4	Gauge32	read-only	Count of the number of seconds in Low Noise Margin status during the current day.
G32 nncSdslNearEndCurr1DayLPRS	1.3.6.1.4.1.123.3.64.1.4.1.5	Gauge32	read-only	Count of the number of seconds in Loss of Power status during the current day.
G32 nncSdslNearEndCurr1DayErrS	1.3.6.1.4.1.123.3.64.1.4.1.6	Gauge32	read-only	Count of Errored Seconds during the current day. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
nncSdslNearEndPrev1DayTable	1.3.6.1.4.1.123.3.64.1.5		not-accessible	Table that contains the Near End 1 DAY PREVIOUS Stats of all SDSL Ports.
nncSdslNearEndPrev1DayEntry	1.3.6.1.4.1.123.3.64.1.5.1		not-accessible	The Near End 1 Day PREVIOUS Stats of an SDSL Port.
G32 nncSdslNearEndPrev1DayMoniSecs	1.3.6.1.4.1.123.3.64.1.5.1.1	Gauge32	read-only	The time in the PREVIOUS 1-day interval over which the performance monitoring information is actually counted. This value will normally be the same as the total interval duration except in a situation where performance monitoring information can not be collected for any reason. Typically Elapsed 1-day Time will be copied into Monitored Seconds when the 1-day roll-over occurs.
G32 nncSdslNearEndPrev1DayLOSS	1.3.6.1.4.1.123.3.64.1.5.1.2	Gauge32	read-only	Count of the number of seconds in Loss of Signal status not due to a Loss of Power within the most recent PREVIOUS 1 day period.
G32 nncSdslNearEndPrev1DayLOSWS	1.3.6.1.4.1.123.3.64.1.5.1.3	Gauge32	read-only	Count of the number of seconds in Loss of Synch Word status not followed by a Loss of Signal within the most recent PREVIOUS 1 day period.
G32 nncSdslNearEndPrev1DayLowNMS	1.3.6.1.4.1.123.3.64.1.5.1.4	Gauge32	read-only	Count of the number of seconds in Low Noise Margin status within the most recent PREVIOUS 1 day period.
G32 nncSdslNearEndPrev1DayLPRS	1.3.6.1.4.1.123.3.64.1.5.1.5	Gauge32	read-only	Count of the number of seconds in Loss of Power status within the most recent PREVIOUS 1 day period.
G32 nncSdslNearEndPrev1DayErrS	1.3.6.1.4.1.123.3.64.1.5.1.6	Gauge32	read-only	Count of Errored Seconds within the most recent PREVIOUS 1 day period. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
T/F nncSdslNearEndPrev1DayValidData	1.3.6.1.4.1.123.3.64.1.5.1.7	TruthValue	read-only	This variable indicates if there is valid data for this interval.
nncSdslFarEndAllTable	1.3.6.1.4.1.123.3.64.1.6		not-accessible	Table that contains ALL the Far End Stats of all SDSL Ports.
nncSdslFarEndAllEntry	1.3.6.1.4.1.123.3.64.1.6.1		not-accessible	ALL the Far End Stats of an SDSL Port.
C32 nncSdslFarEndRawLOCD	1.3.6.1.4.1.123.3.64.1.6.1.1	Counter32	read-only	Count of the number of Loss of Cell Delineation failures since system reset.
G32 nncSdslFarEndCurr15MinTimeElapsed	1.3.6.1.4.1.123.3.64.1.6.1.2	Gauge32	read-only	Total elapsed seconds in this interval. A full interval is 900 seconds.
G32 nncSdslFarEndCurr15MinErrS	1.3.6.1.4.1.123.3.64.1.6.1.3	Gauge32	read-only	Count of Errored Seconds in the current 15 minutes interval. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
G32 nncSdslFarEndCurr1DayTimeElapsed	1.3.6.1.4.1.123.3.64.1.6.1.4	Gauge32	read-only	Number of seconds that have elapses since the beginning of the current 1 Day interval.
G32 nncSdslFarEndCurr1DayErrS	1.3.6.1.4.1.123.3.64.1.6.1.5	Gauge32	read-only	Count of Errored Seconds in the current 15 minutes interval. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
G32 nncSdslFarEndPrev1DayMoniSecs	1.3.6.1.4.1.123.3.64.1.6.1.6	Gauge32	read-only	The time in the PREVIOUS 1-day interval over which the performance monitoring information is actually counted. This value will normally be the same as the total interval duration except in a situation where performance monitoring information can not be collected for any reason. Typically Elapsed 1-day Time will be copied into Monitored Seconds when the 1-day roll-over occurs.
G32 nncSdslFarEndPrev1DayErrS	1.3.6.1.4.1.123.3.64.1.6.1.7	Gauge32	read-only	Count of Errored Seconds within the most recent PREVIOUS 1 day period. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
T/F nncSdslFarEndPrev1DayValidData	1.3.6.1.4.1.123.3.64.1.6.1.8	TruthValue	read-only	This variable indicates if there is valid data for this interval.
nncSdslNearEndIntTable	1.3.6.1.4.1.123.3.64.1.7		not-accessible	Table that contains the Near End 15 Minutes Intervals Stats of all SDSL Ports.
nncSdslNearEndIntEntry	1.3.6.1.4.1.123.3.64.1.7.1		not-accessible	One interval of Near End Stats of an SDSL Port.
INT nncSdslNearEndIntNumber	1.3.6.1.4.1.123.3.64.1.7.1.1	INTEGER	not-accessible	Performance Data Interval number. 1 is the the most recent interval; interval 96 is 24 hours ago. Interval 2..96 are optional.
G32 nncSdslNearEndIntLOSS	1.3.6.1.4.1.123.3.64.1.7.1.2	Gauge32	read-only	Count of seconds in the interval when there was Loss of Signal not due to a Loss of Power.
G32 nncSdslNearEndIntLOSWS	1.3.6.1.4.1.123.3.64.1.7.1.3	Gauge32	read-only	Count of seconds in the interval when there was Loss of Signal not folloew by Loss of Signal.
G32 nncSdslNearEndIntLowNMS	1.3.6.1.4.1.123.3.64.1.7.1.4	Gauge32	read-only	Count of seconds in the interval when there was Low Noise Margin.
G32 nncSdslNearEndIntLPRS	1.3.6.1.4.1.123.3.64.1.7.1.5	Gauge32	read-only	Count of seconds in the interval when there was Loss of Power.
G32 nncSdslNearEndIntErrS	1.3.6.1.4.1.123.3.64.1.7.1.6	Gauge32	read-only	Count of Errored Seconds in the interval. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
T/F nncSdslNearEndIntValidData	1.3.6.1.4.1.123.3.64.1.7.1.7	TruthValue	read-only	This variable indicates if there is valid data for this interval.
nncSdslFarEndIntTable	1.3.6.1.4.1.123.3.64.1.8		not-accessible	Table that contains the Far End 15 Minutes Intervals Stats of all SDSL Ports.
nncSdslFarEndIntEntry	1.3.6.1.4.1.123.3.64.1.8.1		not-accessible	One interval of Far End Stats of an SDSL Port.
INT nncSdslFarEndIntNumber	1.3.6.1.4.1.123.3.64.1.8.1.1	INTEGER	not-accessible	Performance Data Interval number. 1 is the the most recent interval; interval 96 is 24 hours ago. Interval 2..96 are optional.
G32 nncSdslFarEndIntErrS	1.3.6.1.4.1.123.3.64.1.8.1.2	Gauge32	read-only	Count of Errored Seconds in the interval. The errored second parameter is a count of one-second intervals containing one or more of the anomolies or defects previously defined.
T/F nncSdslFarEndIntValidData	1.3.6.1.4.1.123.3.64.1.8.1.3	TruthValue	read-only	This variable indicates if there is valid data for this interval.

RFC description

MIB for monitoring Symmetric DSL (SDSL) line statistics, performance metrics, and connection status.

Start monitoring Newbridge SDSL DSL access multiplexer (DSLAM), SDSL line card/port (line rate/SNR/error 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 SDSL-STATS-MIB