DVB-CABLE-NIU-IF-MIB

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Organization: IETF IPCDN Working Group DVB/DAVIC Interoperability Consortium Technical Working Group

Last Updated: 1999-12-03

Description: MIB for DVB cable Network Interface Unit (NIU) interface statistics and configuration on EuroModem DVB interfaces per the IETF IPCDN working group

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What Is DVB-CABLE-NIU-IF-MIB?

This is an IETF IPCDN working group, vendor-neutral MIB describing the DVB cable Network Interface Unit (NIU) interfaces found in EuroModem cable devices. It exposes interface statistics and configuration specific to the DVB cable physical/link layer, extending general interface management concepts to this cable technology. It supports monitoring of the interface's operational hardware status, such as link up/down state and error/traffic counters, which reveal a degraded or failing cable connection between the NIU and the head-end. It builds on the standard IF-MIB interface table conventions common to IPCDN-family MIBs. It is typically deployed on EuroModem-based cable modem/NIU devices in European DVB cable broadband networks. Engineers implementing or auditing this functionality typically reference the DVB-CABLE-NIU-IF-MIB RFC/standard documentation for the authoritative specification.

IPNetwork Monitor allows you to monitor SNMP objects defined in DVB-CABLE-NIU-IF-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

vendor-neutral, standards-based MIB, not tied to a specific manufacturer
EuroModem DVB cable Network Interface Unit (NIU)

Monitoring Examples

No sample objects were supplied for this module, so specific table names cannot be cited with confidence. Conceptually, an administrator would poll the DVB cable interface's operational status and error counters, similar to standard ifOperStatus/ifInErrors-style objects, to detect a cable link that has gone down or is experiencing rising error rates. This would typically be used to diagnose degraded broadband service to a subscriber's EuroModem.

What Can Be Monitored

DVB cable interface operational status
interface error and traffic counters
physical layer link state
interface configuration parameters

Imported Objects

From IF-MIB

ifIndex

OBJECT-TYPE

From SNMP-FRAMEWORK-MIB

SnmpAdminString

From SNMPv2-CONF

MODULE-COMPLIANCE
OBJECT-GROUP

From SNMPv2-SMI

Counter32
Gauge32
Integer32
MODULE-IDENTITY
OBJECT-TYPE
transmission

From SNMPv2-TC

TruthValue

OIDs

OID symbolic	OID numeric	Type	Access	Description
dvbNiuIf	1.3.6.1.2.1.10.0			The information module for the DVB interfaces found in an EuroModem.
dvbNiuMacObjects	1.3.6.1.2.1.10.0.1
dvbNiuMacCap	1.3.6.1.2.1.10.0.1.1
dvbNiuMacCapTable	1.3.6.1.2.1.10.0.1.1.1		not-accessible	This table contains all available MAC capabilites specified in ETS 300 800 (8/3/1999) and identifies whether they are supported on the MAC interface.
dvbNiuMacCapEntry	1.3.6.1.2.1.10.0.1.1.1.1		not-accessible	A row provides the supported capabilities for a single MAC interface. An entry in this table exists for each ifEntry with an ifType of dvbRccMacLayer.
INT dvbNiuMacCapVer	1.3.6.1.2.1.10.0.1.1.1.1.1	INTEGER	read-only	The mac protocol version.
BIT dvbNiuMacCapEncap	1.3.6.1.2.1.10.0.1.1.1.1.2	Bits	read-only	This field is used to identify the encapsulation types supported. These can be direct IP, Ethernet MAC bridging and PPP.
T/F dvbNiuMacCapResReqCap	1.3.6.1.2.1.10.0.1.1.1.1.3	TruthValue	read-only	True if the NIU is able to send MAC Resource Request Messages.
T/F dvbNiuMacCapFragMacMess	1.3.6.1.2.1.10.0.1.1.1.1.4	TruthValue	read-only	True if the NIU supports fragemented MAC messages.
T/F dvbNiuMacCapSecSupp	1.3.6.1.2.1.10.0.1.1.1.1.5	TruthValue	read-only	True if the NIU supports the security extensions defined in ETS 300 800.
T/F dvbNiuMacCapMinislots	1.3.6.1.2.1.10.0.1.1.1.1.6	TruthValue	read-only	True if the NIU is capable of utilising minislots.
T/F dvbNiuMacCapIbSig	1.3.6.1.2.1.10.0.1.1.1.1.7	TruthValue	read-only	True if the NIU is capable of utilising in band signalling.
T/F dvbNiuMacCapOobSig	1.3.6.1.2.1.10.0.1.1.1.1.8	TruthValue	read-only	True if the NIU is capable of utilising out of band signalling.
BIT dvbNiuMacCapDsOobBr	1.3.6.1.2.1.10.0.1.1.1.1.9	Bits	read-only	This field is used to identify the downstream out of band bit rates supported. These are 1.544Mbit/s and 3.088Mbit/s. If dvbNiuMacCapOobSig is false then the value of this Object will be zero.
BIT dvbNiuMacCapUsBr	1.3.6.1.2.1.10.0.1.1.1.1.10	Bits	read-only	This field is used to identify the upstream bit rates supported. These are 256kbit/s, 1.544Mbit/s, 3.088Mbit/s and 6.176Mbit/s.
G32 dvbNiuMacCapMaxConn	1.3.6.1.2.1.10.0.1.1.1.1.11	Gauge32	read-only	The maximum number of connections supported by the NIU.
INT dvbNiuMacCapOperation	1.3.6.1.2.1.10.0.1.1.1.1.12	INTEGER	read-only	The operational mode of the NIU, this can be either one-way or two-way.
dvbNiuMacStats	1.3.6.1.2.1.10.0.1.2
dvbNiuMacStatsTable	1.3.6.1.2.1.10.0.1.2.1		not-accessible	This table contains statistics/status associated with the MAC interface. Reading these statistics does not cause the values to be reset. If the statistics are read via a MAC message they will be reset! Note: The error statistics are represented by only 16 bits, this is because the status message only uses 16 bits for the values.
dvbNiuMacStatsEntry	1.3.6.1.2.1.10.0.1.2.1.1		not-accessible	A row provides the statistics/status for a single MAC interface. An entry in this table exists for each ifEntry with an ifType of dvbRccMacLayer.
STR dvbNiuMacHwVer	1.3.6.1.2.1.10.0.1.2.1.1.1	SnmpAdminString	read-only	The hardware version of the MAC interface. The is a free format text field.
INT dvbNiuMacStatStatus	1.3.6.1.2.1.10.0.1.2.1.1.2	INTEGER	read-only	The operational status of the NIU. The statuses 1-8 are from ETS 300 800. The status other(9) is used for any case that is not explicitly identified
G32 dvbNiuMacStatSlotCfgCrcErrs	1.3.6.1.2.1.10.0.1.2.1.1.3	Gauge32	read-only	Counts the number of errors in Slot_Configuration_Count R bytes, as found by the CRC decoder. This object is initialized to 0 at boot and is reset only upon reboot or by a MAC Status message.
G32 dvbNiuMacStatRsCorrErrs	1.3.6.1.2.1.10.0.1.2.1.1.4	Gauge32	read-only	Counts the number of errors as corrected by the Reed Solomon decoder. This object is initialized to 0 at boot and is reset only upon reboot or by a MAC Status message.
G32 dvbNiuMacStatATMPacketLosses	1.3.6.1.2.1.10.0.1.2.1.1.5	Gauge32	read-only	Counts the number of received ATM cells that were lost, either due to unrecoverable Reed Solomon errors or because of an erroneous HEC of the ATM cells header. This object is initialized to 0 at boot and is reset only upon reboot or by a MAC Status message.
G32 dvbNiuMacStatSlotConfigCount	1.3.6.1.2.1.10.0.1.2.1.1.6	Gauge32	read-only	This refers to the number of R-byte sets (Rxa-Rxc) used to calculate Slot_Configuration_CRC_Error_Count.
G32 dvbNiuMacStatSlEsfCrcErrs	1.3.6.1.2.1.10.0.1.2.1.1.7	Gauge32	read-only	Counts the number of CRC errrors found in consecutive C1-C6. This object is initialized to 0 at boot and is reset only upon reboot or by a MAC Status message.
G32 dvbNiuMacStatRsErrCorrFrms	1.3.6.1.2.1.10.0.1.2.1.1.8	Gauge32	read-only	Counts the number of MPEG frames received with correctable Reed Solomon errors (IB only). This object is initialized to 0 at boot and is reset only upon reboot or by a MAC Status message.
G32 dvbNiuMacStatRsErrNonCorrFrms	1.3.6.1.2.1.10.0.1.2.1.1.9	Gauge32	read-only	Counts the number of MPEG frames received with non correctable Reed Solomon errors (IB only). This object is initialized to 0 at boot and is reset only upon reboot or by a MAC Status message.
G32 dvbNiuMacStatSlEsfFrameCount	1.3.6.1.2.1.10.0.1.2.1.1.10	Gauge32	read-only	This is the number of frames the statistics in this message apply on.
G32 dvbNiuMacStatConCount	1.3.6.1.2.1.10.0.1.2.1.1.11	Gauge32	read-only	The number of active connections.
dvbNiuDsRfObjects	1.3.6.1.2.1.10.0.2
dvbNiuDsRfParam	1.3.6.1.2.1.10.0.2.1
dvbNiuRfDsTable	1.3.6.1.2.1.10.0.2.1.1		not-accessible	This table contains RF characteristcs and counters for the downstream interfaces.
dvbNiuRfDsEntry	1.3.6.1.2.1.10.0.2.1.1.1		not-accessible	A row provides the RF characteristcs, counters and possible frequencies to use when locating a downstream channel for a single downstream RF interface. An entry in this table exists for each ifEntry with an ifType of dvbRccDownstream
STR dvbNiuRfDsHwVer	1.3.6.1.2.1.10.0.2.1.1.1.1	SnmpAdminString	read-only	The hardware version of the downstream RF interface. The is a free format text field.
I32 dvbNiuRfDsLastGoodFreq	1.3.6.1.2.1.10.0.2.1.1.1.2	Integer32	read-only	This is the last known good frequency for a downstream channel and is used to locate the channel on power up or reset. If a downstream channel cannot be found at the frequency held by this object then dvbNiuRfDsBackupFreq is tried. If dvbNiuRfDsBackupFreq fails then a frequency scan is performed between dvbNiuRfDsMinScanFreq and dvbNiuRfDsMaxScanFreq with a step size of dvbNiuRfDsScanStep This object will be updated with the freguency of the channel found using the alternative frequencies.
I32 dvbNiuRfDsBackupFreq	1.3.6.1.2.1.10.0.2.1.1.1.3	Integer32	read-write	This is a backup frequency for the downstream channel. This will be used if dvbNiuRfDsLastGoodFreq fails. If this frequency is successfully used then dvbNiuRfDsLastGoodFreq is updated to contain it. If dvbNiuRfDsBackupFreq fails then a frequency scan is performed between dvbNiuRfDsMinScanFreq and dvbNiuRfDsMaxScanFreq with a step size of dvbNiuRfDsScanStep.
I32 dvbNiuRfDsLowScanFreq	1.3.6.1.2.1.10.0.2.1.1.1.4	Integer32	read-write	This is the start of the frequency range to be used for scanning to find a downstream channel. If a downstream channel is found then dvbNiuRfDsLastGoodFreq is updated to contain the new frequency and the scan is terminated. The step size used for the scan is dvbNiuRfDsScanStep.
I32 dvbNiuRfDsHighScanFreq	1.3.6.1.2.1.10.0.2.1.1.1.5	Integer32	read-write	This is the end of the frequency range to be used for scanningscan to find a downstream channel. If a downstream channel is found then dvbNiuRfDsLastGoodFreq is updated to contain the new frequency and the scan is terminated. The step size used for the scan is dvbNiuRfDsScanStep.
I32 dvbNiuRfDsScanStep	1.3.6.1.2.1.10.0.2.1.1.1.6	Integer32	read-write	This is the step size to be used when scanning for a downstream channel.
I32 dvbNiuRfDsOobFreq	1.3.6.1.2.1.10.0.2.1.1.1.7	Integer32	read-only	The frequency of the current downstream out of band channel.
I32 dvbNiuRfDsIbFreq	1.3.6.1.2.1.10.0.2.1.1.1.8	Integer32	read-only	The frequency of the current downstream in band channel.
INT dvbNiuRfDsModType	1.3.6.1.2.1.10.0.2.1.1.1.9	INTEGER	read-only	The modulation type of the downstream channel.
I32 dvbNiuRfDsSnrEst	1.3.6.1.2.1.10.0.2.1.1.1.10	Integer32	read-only	The estimated signal to noise ratio of the downstream carrying MAC messages. If the SNR cannot be estinmated it will be 0.
I32 dvbNiuRfDsPwrLevelEst	1.3.6.1.2.1.10.0.2.1.1.1.11	Integer32	read-only	The estimated power level of the downstream carrying MAC messages. If the power level cannot be estinmated it will be 0.
dvbNiuUsRfObjects	1.3.6.1.2.1.10.0.3
dvbNiuUsRfParam	1.3.6.1.2.1.10.0.3.1
dvbNiuRfUsTable	1.3.6.1.2.1.10.0.3.1.1		not-accessible	This table contains RF characteristcs and counters for the upstream interfaces.
dvbNiuRfUsEntry	1.3.6.1.2.1.10.0.3.1.1.1		not-accessible	A row provides the RF characteristcs and counters for a single upstream RF interface. An entry in this table exists for each ifEntry with an ifType of dvbRccUpstream
STR dvbNiuRfUsHwVer	1.3.6.1.2.1.10.0.3.1.1.1.1	SnmpAdminString	read-only	The hardware version of the upstream RF interface. The is a free format text field.
I32 dvbNiuRfUsFreq	1.3.6.1.2.1.10.0.3.1.1.1.2	Integer32	read-only	The frequency of the upstream channel.
I32 dvbNiuRfUsPwrCtrlSetting	1.3.6.1.2.1.10.0.3.1.1.1.3	Integer32	read-only	The actual power used for the upstream transmission. The unit of measure is 0.5dBuV
I32 dvbNiuRfUsTimeOffsetValue	1.3.6.1.2.1.10.0.3.1.1.1.4	Integer32	read-only	This represents a relative offset of the upstream transmission timing. A negative value indicates an adjustment forward in time. A positive value indicates an adjustment back in time. The unit of measure is 100 nsec
dvbNiuDvbIfConform	1.3.6.1.2.1.10.0.4
dvbNiuIfCompliances	1.3.6.1.2.1.10.0.4.1
dvbNiuIfCompliance	1.3.6.1.2.1.10.0.4.1.1			The compliance statement for EuroModem NIUs which implement the DVB-CABLE-NIU-IF-MIB MIB.
dvbNiuIfGroups	1.3.6.1.2.1.10.0.4.2
dvbNiuMacGroup	1.3.6.1.2.1.10.0.4.2.1			A collection of objects providing capabilities and statistics for the MAC layer.
dvbNiuDsRfGroup	1.3.6.1.2.1.10.0.4.2.2			A collection of objects providing capabilities and statistics for the downstream RF interface.
dvbNiuUsRfGroup	1.3.6.1.2.1.10.0.4.2.3			A collection of objects providing capabilities and statistics for the upstream RF interface.

RFC description

Management information for DVB cable network interface units (NIU) found in EuroModem devices, including MAC statistics and RF object configurations.

Start monitoring EuroModem DVB cable Network Interface Unit (vendor-neutral IETF/DVB standard) 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 DVB-CABLE-NIU-IF-MIB

What Is DVB-CABLE-NIU-IF-MIB?

Supported Devices

Monitoring Examples

What Can Be Monitored

This MIB depends on

Related MIBs

RFC description