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RFC 4546

 
 
 

Radio Frequency (RF) Interface Management Information Base for Data over Cable Service Interface Specifications (DOCSIS) 2.0 Compliant RF Interfaces

Part 3 of 5, p. 52 to 77
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   docsIfDocsisBaseCapability OBJECT-TYPE
           SYNTAX      DocsisVersion
           MAX-ACCESS  read-only
           STATUS      current
           DESCRIPTION
               "Indication of the DOCSIS capability of the device."
           REFERENCE
               "Data-Over-Cable Service Interface Specifications: Radio
                Frequency Interface Specification SP-RFIv2.0-I10-051209,
                Annex G."
           ::= { docsIfBaseObjects 5 }

   --
   -- CABLE MODEM GROUP
   --

   --
   -- The CM MAC Table
   --

   docsIfCmMacTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfCmMacEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Describes the attributes of each CM MAC interface,
             extending the information available from ifEntry."
        ::= { docsIfCmObjects 1 }

   docsIfCmMacEntry OBJECT-TYPE
        SYNTAX      DocsIfCmMacEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "An entry containing objects describing attributes of
             each MAC entry, extending the information in ifEntry.
             An entry in this table exists for each ifEntry with an
             ifType of docsCableMaclayer(127)."
        INDEX { ifIndex }
        ::= { docsIfCmMacTable 1 }

   DocsIfCmMacEntry ::= SEQUENCE {
            docsIfCmCmtsAddress           MacAddress,
            docsIfCmCapabilities          BITS,
            docsIfCmRangingRespTimeout    TimeTicks,
            docsIfCmRangingTimeout        TimeInterval
         }

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   docsIfCmCmtsAddress OBJECT-TYPE
        SYNTAX      MacAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Identifies the CMTS that is believed to control this MAC
             domain.  At the CM, this will be the source address from
             SYNC, MAP, and other MAC-layer messages.  If the CMTS is
             unknown, returns 00-00-00-00-00-00."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.2.2."
        ::= { docsIfCmMacEntry 1 }

   docsIfCmCapabilities OBJECT-TYPE
        SYNTAX      BITS {
            atmCells(0),
            concatenation(1)
        }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Identifies the capabilities of the MAC implementation
             at this interface.  Note that packet transmission is
             always supported.  Therefore, there is no specific bit
             required to explicitly indicate this capability.
             Note that BITS objects are encoded most significant bit
             first.  For example, if bit 1 is set, the value of this
             object is the octet string '40'H."
        ::= { docsIfCmMacEntry 2 }

   docsIfCmRangingRespTimeout OBJECT-TYPE
        SYNTAX      TimeTicks
        MAX-ACCESS  read-write
        STATUS      obsolete
        DESCRIPTION
            "Waiting time for a Ranging Response packet.
             This object has been obsoleted and replaced by
             docsIfCmRangingTimeout to correct the typing to
             TimeInterval."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.1.6."
        DEFVAL { 20 }
        ::= { docsIfCmMacEntry 3 }

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   docsIfCmRangingTimeout OBJECT-TYPE
        SYNTAX      TimeInterval
        UNITS       "HundredOfSeconds"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
            "Waiting time for a Ranging Response packet.
             This object MUST NOT persist at reinitialization
             of the managed system."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.1.6, timer T3."
        DEFVAL { 20 }
        ::= { docsIfCmMacEntry 4 }

   --
   -- CM status table.
   -- This table is implemented only at the CM.
   --

   docsIfCmStatusTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfCmStatusEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "This table maintains a number of status objects
             and counters for Cable Modems."
        ::= { docsIfCmObjects 2 }

   docsIfCmStatusEntry OBJECT-TYPE
        SYNTAX      DocsIfCmStatusEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "A set of status objects and counters for a single MAC
             layer instance in Cable Modem.
             An entry in this table exists for each ifEntry with an
             ifType of docsCableMaclayer(127)."
        INDEX { ifIndex }
        ::= { docsIfCmStatusTable 1 }

   DocsIfCmStatusEntry ::= SEQUENCE {
            docsIfCmStatusValue               INTEGER,
            docsIfCmStatusCode                OCTET STRING,
            docsIfCmStatusTxPower             TenthdBmV,
            docsIfCmStatusResets              Counter32,
            docsIfCmStatusLostSyncs           Counter32,

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            docsIfCmStatusInvalidMaps         Counter32,
            docsIfCmStatusInvalidUcds         Counter32,
            docsIfCmStatusInvalidRangingResponses   Counter32,
            docsIfCmStatusInvalidRegistrationResponses Counter32,
            docsIfCmStatusT1Timeouts          Counter32,
            docsIfCmStatusT2Timeouts          Counter32,
            docsIfCmStatusT3Timeouts          Counter32,
            docsIfCmStatusT4Timeouts          Counter32,
            docsIfCmStatusRangingAborteds     Counter32,
            docsIfCmStatusDocsisOperMode      DocsisQosVersion,
            docsIfCmStatusModulationType      DocsisUpstreamType,
            docsIfCmStatusEqualizationData    DocsEqualizerData,
            docsIfCmStatusUCCs                Counter32,
            docsIfCmStatusUCCFails            Counter32
        }

   docsIfCmStatusValue OBJECT-TYPE
        SYNTAX      INTEGER {
            other(1),
            notReady(2),
            notSynchronized(3),
            phySynchronized(4),
            usParametersAcquired(5),
            rangingComplete(6),
            ipComplete(7),
            todEstablished(8),
            securityEstablished(9),
            paramTransferComplete(10),
            registrationComplete(11),
            operational(12),
            accessDenied(13)
        }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Current Cable Modem connectivity state, as specified
             in the RF Interface Specification.  Interpretations for
             state values 1-12 are clearly outlined in the SP-RFI
             reference given below.
             The state value accessDenied(13) indicates the CMTS has
             sent a Registration Aborted message to the CM.  The same
             state is reported as accessDenied(7) by the CMTS object
             docsIfCmtsCmStatusValue."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 11.2.
             Data-Over-Cable Service Interface Specifications:

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             Operations Support System Interface Specification
             SP-OSSIv2.0-I09-050812, Section 6.3.4.2."
        ::= { docsIfCmStatusEntry 1 }

   docsIfCmStatusCode OBJECT-TYPE
        SYNTAX      OCTET STRING (SIZE( 0 | 5 | 6 ))
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Status code for a Cable Modem as defined in the
             OSSI Specification.  The status code consists
             of a single character indicating error groups, followed
             by a two- or three-digit number indicating the status
             condition, followed by a decimal.
             An example of a returned value could be 'T101.0'.
             The zero-length OCTET STRING indicates no status code yet
             registered."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications:
             Operations Support System Interface Specification
             SP-OSSIv2.0-I09-050812, Annex D."
        ::= { docsIfCmStatusEntry 2 }


   docsIfCmStatusTxPower OBJECT-TYPE
        SYNTAX      TenthdBmV
        UNITS       "TenthdBmV"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The operational transmit power for the attached upstream
             channel."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 6.2.18."
        ::= { docsIfCmStatusEntry 3 }

   docsIfCmStatusResets OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "resets"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the CM reset or initialized this
             interface.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other

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             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        ::= { docsIfCmStatusEntry 4 }

   docsIfCmStatusLostSyncs OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the CM lost synchronization with
             the downstream channel.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.2."
        ::= { docsIfCmStatusEntry 5 }

   docsIfCmStatusInvalidMaps OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "maps"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the CM received invalid MAP messages.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.4."
        ::= { docsIfCmStatusEntry 6 }

   docsIfCmStatusInvalidUcds OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "messages"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the CM received invalid UCD messages.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of

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             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.3."
        ::= { docsIfCmStatusEntry 7 }

   docsIfCmStatusInvalidRangingResponses OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "messages"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the CM received invalid ranging response
             messages.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.6."
        ::= { docsIfCmStatusEntry 8 }

   docsIfCmStatusInvalidRegistrationResponses OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "messages"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the CM received invalid registration
             response messages.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.8."
        ::= { docsIfCmStatusEntry 9 }

   docsIfCmStatusT1Timeouts OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "timeouts"
        MAX-ACCESS  read-only
        STATUS      current

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        DESCRIPTION
            "Number of times counter T1 expired in the CM.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 9-2."
        ::= { docsIfCmStatusEntry 10 }

   docsIfCmStatusT2Timeouts OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "timeouts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times counter T2 expired in the CM.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 9-2."
        ::= { docsIfCmStatusEntry 11 }

   docsIfCmStatusT3Timeouts OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "timeouts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times counter T3 expired in the CM.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 9-2."
        ::= { docsIfCmStatusEntry 12 }

   docsIfCmStatusT4Timeouts OBJECT-TYPE
        SYNTAX      Counter32

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        UNITS       "timeouts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times counter T4 expired in the CM.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 9-2."
        ::= { docsIfCmStatusEntry 13 }

   docsIfCmStatusRangingAborteds OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Number of times the ranging process was aborted
             by the CMTS.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.3.3."
        ::= { docsIfCmStatusEntry 14 }

   docsIfCmStatusDocsisOperMode OBJECT-TYPE
        SYNTAX      DocsisQosVersion
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
             "Indication of whether the device has registered using 1.0
              Class of Service or 1.1 Quality of Service.
              An unregistered CM SHOULD indicate 'docsis11' for a
              docsIfDocsisBaseCapability value of DOCSIS 1.1/2.0.  An
              unregistered CM SHOULD indicate 'docsis10'  for a
              docsIfDocsisBaseCapability value of DOCSIS 1.0."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Annex G."

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        ::= { docsIfCmStatusEntry 15 }

   docsIfCmStatusModulationType OBJECT-TYPE
         SYNTAX      DocsisUpstreamType
         MAX-ACCESS  read-only
         STATUS      current
         DESCRIPTION
             "Indicates modulation type status currently used by the
              CM.  Since this object specifically identifies PHY mode,
              the shared upstream channel type is not permitted."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 6.2.1."

         ::= { docsIfCmStatusEntry 16 }

   docsIfCmStatusEqualizationData OBJECT-TYPE
        SYNTAX      DocsEqualizerData
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Pre-equalization data for this CM after convolution with
             data indicated in the RNG-RSP.  This data is valid when
             docsIfUpChannelPreEqEnable is set to true."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 8-23."
        ::= { docsIfCmStatusEntry 17 }

   docsIfCmStatusUCCs OBJECT-TYPE
        SYNTAX          Counter32
        UNITS           "attempts"
        MAX-ACCESS      read-only
        STATUS          current
        DESCRIPTION
            "The number of successful Upstream Channel Change
             transactions.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        ::= { docsIfCmStatusEntry 18 }

   docsIfCmStatusUCCFails OBJECT-TYPE
        SYNTAX          Counter32
        UNITS           "attempts"

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        MAX-ACCESS      read-only
        STATUS          current
        DESCRIPTION
            "The number of failed Upstream Channel Change
             transactions.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        ::= { docsIfCmStatusEntry 19 }

   --
   -- The Cable Modem Service Table
   --

   docsIfCmServiceTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfCmServiceEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Describes the attributes of each upstream service queue
             on a CM."
        ::= { docsIfCmObjects 3 }

   docsIfCmServiceEntry OBJECT-TYPE
        SYNTAX      DocsIfCmServiceEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Describes the attributes of an upstream bandwidth service
             queue.
             An entry in this table exists for each Service ID.
             The primary index is an ifIndex with an ifType of
             docsCableMaclayer(127)."
        INDEX { ifIndex, docsIfCmServiceId }
        ::= { docsIfCmServiceTable 1 }

   DocsIfCmServiceEntry ::= SEQUENCE {
            docsIfCmServiceId               Integer32,
            docsIfCmServiceQosProfile       Integer32,
            docsIfCmServiceTxSlotsImmed     Counter32,
            docsIfCmServiceTxSlotsDed       Counter32,
            docsIfCmServiceTxRetries        Counter32,
            docsIfCmServiceTxExceededs      Counter32,
            docsIfCmServiceRqRetries        Counter32,
            docsIfCmServiceRqExceededs      Counter32,
            docsIfCmServiceExtTxSlotsImmed  Counter64,
            docsIfCmServiceExtTxSlotsDed    Counter64

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         }

   docsIfCmServiceId OBJECT-TYPE
        SYNTAX      Integer32 (1..16383)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Identifies a service queue for upstream bandwidth.  The
             attributes of this service queue are shared between the
             CM and the CMTS.  The CMTS allocates upstream bandwidth
             to this service queue based on requests from the CM and
             on the class of service associated with this queue."
        ::= { docsIfCmServiceEntry 1 }

   docsIfCmServiceQosProfile OBJECT-TYPE
        SYNTAX      Integer32 (0..16383)
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The index in docsIfQosProfileTable describing the quality
             of service attributes associated with this particular
             service.  If no associated entry in docsIfQosProfileTable
             exists, this object returns a value of zero."
        ::= { docsIfCmServiceEntry 2 }

   docsIfCmServiceTxSlotsImmed OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "mini-slots"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of upstream mini-slots that have been used to
             transmit data PDUs in immediate (contention) mode.  This
             includes only those PDUs that are presumed to have
             arrived at the head-end (i.e., those that were explicitly
             acknowledged).  It does not include retransmission attempts
             or mini-slots used by requests.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 3 }

   docsIfCmServiceTxSlotsDed OBJECT-TYPE

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        SYNTAX      Counter32
        UNITS       "mini-slots"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of upstream mini-slots that have been used to
             transmit data PDUs in dedicated mode (i.e., as a result
             of a unicast Data Grant).
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 4 }

   docsIfCmServiceTxRetries OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of attempts to transmit data PDUs containing
             requests for acknowledgment that did not result in
             acknowledgment.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 5 }

   docsIfCmServiceTxExceededs OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of data PDU transmission failures due to
             excessive retries without acknowledgment.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of

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             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 6 }

   docsIfCmServiceRqRetries OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of attempts to transmit bandwidth requests
             that did not result in acknowledgment.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 7 }

   docsIfCmServiceRqExceededs OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of requests for bandwidth that failed due to
             excessive retries without acknowledgment.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 8 }

   docsIfCmServiceExtTxSlotsImmed OBJECT-TYPE
        SYNTAX      Counter64
        UNITS       "mini-slots"
        MAX-ACCESS  read-only
        STATUS      current

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        DESCRIPTION
            "The number of upstream mini-slots that have been used to
             transmit data PDUs in immediate (contention) mode.  This
             includes only those PDUs that are presumed to have
             arrived at the head-end (i.e., those that were explicitly
             acknowledged).  It does not include retransmission attempts
             or mini-slots used by requests.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 9 }

   docsIfCmServiceExtTxSlotsDed OBJECT-TYPE
        SYNTAX      Counter64
        UNITS       "mini-slots"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The number of upstream mini-slots that have been used to
             transmit data PDUs in dedicated mode (i.e., as a result
             of a unicast Data Grant).
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.4."
        ::= { docsIfCmServiceEntry 10 }

   --
   -- CMTS GROUP
   --

   --
   -- The CMTS MAC Table
   --

   docsIfCmtsMacTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfCmtsMacEntry
        MAX-ACCESS  not-accessible
        STATUS      current

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        DESCRIPTION
            "Describes the attributes of each CMTS MAC interface,
             extending the information available from ifEntry.
             Mandatory for all CMTS devices."
        ::= { docsIfCmtsObjects 1 }

   docsIfCmtsMacEntry OBJECT-TYPE
        SYNTAX      DocsIfCmtsMacEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "An entry containing objects describing attributes of each
             MAC entry, extending the information in ifEntry.
             An entry in this table exists for each ifEntry with an
             ifType of docsCableMaclayer(127)."
        INDEX { ifIndex }
        ::= { docsIfCmtsMacTable 1 }

   DocsIfCmtsMacEntry ::= SEQUENCE {
            docsIfCmtsCapabilities            BITS,
            docsIfCmtsSyncInterval            Integer32,
            docsIfCmtsUcdInterval             Integer32,
            docsIfCmtsMaxServiceIds           Integer32,
            docsIfCmtsInsertionInterval       TimeTicks,   -- Obsolete
            docsIfCmtsInvitedRangingAttempts  Integer32,
            docsIfCmtsInsertInterval          TimeInterval,
            docsIfCmtsMacStorageType          StorageType
        }

   docsIfCmtsCapabilities OBJECT-TYPE
        SYNTAX      BITS {
            atmCells(0),
            concatenation(1)
        }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Identifies the capabilities of the CMTS MAC
             implementation at this interface.  Note that packet
             transmission is always supported.  Therefore, there
             is no specific bit required to explicitly indicate
             this capability.
             Note that BITS objects are encoded most significant bit
             first.  For example, if bit 1 is set, the value of this
             object is the octet string '40'H."
        ::= { docsIfCmtsMacEntry 1 }

   docsIfCmtsSyncInterval OBJECT-TYPE

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        SYNTAX      Integer32 (1..200)
        UNITS       "Milliseconds"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
            "The interval between CMTS transmission of successive SYNC
             messages at this interface."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.3."
        ::= { docsIfCmtsMacEntry 2 }

   docsIfCmtsUcdInterval OBJECT-TYPE
        SYNTAX      Integer32 (1..2000)
        UNITS       "Milliseconds"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
            "The interval between CMTS transmission of successive
             Upstream Channel Descriptor messages for each upstream
             channel at this interface."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.3"
        ::= { docsIfCmtsMacEntry 3 }

   docsIfCmtsMaxServiceIds OBJECT-TYPE
        SYNTAX     Integer32 (1..16383)
        UNITS      "SIDs"
        MAX-ACCESS read-only
        STATUS     current
        DESCRIPTION
            "The maximum number of service IDs that may be
             simultaneously active."
        ::= { docsIfCmtsMacEntry 4 }

   docsIfCmtsInsertionInterval OBJECT-TYPE
        SYNTAX      TimeTicks
        MAX-ACCESS  read-write
        STATUS      obsolete
        DESCRIPTION
            "The amount of time to elapse between each broadcast
             initial maintenance grant.  Broadcast initial maintenance
             grants are used to allow new cable modems to join the
             network.  Zero indicates that a vendor-specific algorithm
             is used instead of a fixed time.  The maximum amount of

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             time permitted by the specification is 2 seconds.
             This object has been obsoleted and replaced by
             docsIfCmtsInsertInterval to fix a SYNTAX typing problem."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Annex B."
        ::= { docsIfCmtsMacEntry 5 }

   docsIfCmtsInvitedRangingAttempts OBJECT-TYPE
        SYNTAX      Integer32 (0..1024)
        UNITS      "attempts"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
            "The maximum number of attempts to make on invitations
             for ranging requests.  A value of zero means the system
             SHOULD attempt to range forever."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 9.3.3 and Annex B."
        ::= { docsIfCmtsMacEntry 6 }

   docsIfCmtsInsertInterval OBJECT-TYPE
        SYNTAX      TimeInterval
        UNITS       "HundredOfSeconds"
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
            "The amount of time to elapse between each broadcast
             initial maintenance grant.  Broadcast initial maintenance
             grants are used to allow new cable modems to join the
             network.  Zero indicates that a vendor-specific algorithm
             is used instead of a fixed time.  The maximum amount of
             time permitted by the specification is 2 seconds."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Annex B."
        ::= { docsIfCmtsMacEntry 7 }

   docsIfCmtsMacStorageType OBJECT-TYPE
        SYNTAX       StorageType
        MAX-ACCESS   read-only
        STATUS       current
        DESCRIPTION
            "The storage type for this conceptual row.

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             Entries with this object set to permanent(4)
             do not require write operations for read-write
             objects."
        ::= { docsIfCmtsMacEntry 8 }

   --
   --
   -- CMTS status table.
   --

   docsIfCmtsStatusTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfCmtsStatusEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "For the MAC layer, this group maintains a number of
             status objects and counters."
        ::= { docsIfCmtsObjects 2 }

   docsIfCmtsStatusEntry OBJECT-TYPE
        SYNTAX      DocsIfCmtsStatusEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
           "Status entry for a single MAC layer.
             An entry in this table exists for each ifEntry with an
             ifType of docsCableMaclayer(127)."
        INDEX { ifIndex }
        ::= { docsIfCmtsStatusTable 1 }

   DocsIfCmtsStatusEntry ::= SEQUENCE {
            docsIfCmtsStatusInvalidRangeReqs        Counter32,
            docsIfCmtsStatusRangingAborteds         Counter32,
            docsIfCmtsStatusInvalidRegReqs          Counter32,
            docsIfCmtsStatusFailedRegReqs           Counter32,
            docsIfCmtsStatusInvalidDataReqs         Counter32,
            docsIfCmtsStatusT5Timeouts              Counter32
        }

   docsIfCmtsStatusInvalidRangeReqs OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "messages"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "This object counts invalid RNG-REQ messages received on
             this interface.
             Discontinuities in the value of this counter can occur

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             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.5."
        ::= { docsIfCmtsStatusEntry 1 }

   docsIfCmtsStatusRangingAborteds OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "This object counts ranging attempts that were explicitly
             aborted by the CMTS.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.6."
        ::= { docsIfCmtsStatusEntry 2 }

   docsIfCmtsStatusInvalidRegReqs OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "messages"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "This object counts invalid REG-REQ messages received on
             this interface; that is, syntax, out of range parameters,
             or erroneous requests.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.7."
        ::= { docsIfCmtsStatusEntry 3 }

   docsIfCmtsStatusFailedRegReqs OBJECT-TYPE
        SYNTAX      Counter32

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        UNITS       "attempts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "This object counts failed registration attempts.  Included
             are docsIfCmtsStatusInvalidRegReqs, authentication, and
             class of service failures.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.3.7."
        ::= { docsIfCmtsStatusEntry 4 }

   docsIfCmtsStatusInvalidDataReqs OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "messages"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "This object counts invalid data request messages
             received on this interface.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        ::= { docsIfCmtsStatusEntry 5 }

   docsIfCmtsStatusT5Timeouts OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "timeouts"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "This object counts the number of times counter T5
             expired on this interface.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 9-2."
        ::= { docsIfCmtsStatusEntry 6 }

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   --
   -- CM status table (within CMTS).
   -- This table is implemented only at the CMTS.
   -- It contains per-CM status information available in the CMTS.
   --

   docsIfCmtsCmStatusTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfCmtsCmStatusEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "A set of objects in the CMTS, maintained for each
             cable modem connected to this CMTS."
        ::= { docsIfCmtsObjects 3 }

   docsIfCmtsCmStatusEntry OBJECT-TYPE
        SYNTAX      DocsIfCmtsCmStatusEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Status information for a single cable modem.
             An entry in this table exists for each cable modem
             that is connected to the CMTS implementing this table."
        INDEX { docsIfCmtsCmStatusIndex }
        ::= { docsIfCmtsCmStatusTable 1 }

   DocsIfCmtsCmStatusEntry ::= SEQUENCE {
            docsIfCmtsCmStatusIndex               Integer32,
            docsIfCmtsCmStatusMacAddress          MacAddress,
            docsIfCmtsCmStatusIpAddress        IpAddress, -- deprecated
            docsIfCmtsCmStatusDownChannelIfIndex  InterfaceIndexOrZero,
            docsIfCmtsCmStatusUpChannelIfIndex    InterfaceIndexOrZero,
            docsIfCmtsCmStatusRxPower             TenthdBmV,
            docsIfCmtsCmStatusTimingOffset        Unsigned32,
            docsIfCmtsCmStatusEqualizationData    DocsEqualizerData,
            docsIfCmtsCmStatusValue               INTEGER,
            docsIfCmtsCmStatusUnerroreds          Counter32,
            docsIfCmtsCmStatusCorrecteds          Counter32,
            docsIfCmtsCmStatusUncorrectables      Counter32,
            docsIfCmtsCmStatusSignalNoise         TenthdB,
            docsIfCmtsCmStatusMicroreflections    Integer32,
            docsIfCmtsCmStatusExtUnerroreds       Counter64,
            docsIfCmtsCmStatusExtCorrecteds       Counter64,
            docsIfCmtsCmStatusExtUncorrectables   Counter64,
            docsIfCmtsCmStatusDocsisRegMode       DocsisQosVersion,
            docsIfCmtsCmStatusModulationType      DocsisUpstreamType,
            docsIfCmtsCmStatusInetAddressType     InetAddressType,
            docsIfCmtsCmStatusInetAddress         InetAddress,

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            docsIfCmtsCmStatusValueLastUpdate     TimeStamp,
            docsIfCmtsCmStatusHighResolutionTimingOffset Unsigned32
        }

   docsIfCmtsCmStatusIndex OBJECT-TYPE
        SYNTAX      Integer32 (1..2147483647)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Index value to uniquely identify an entry in this table.
             For an individual cable modem, this index value SHOULD
             NOT change during CMTS uptime."
        ::= { docsIfCmtsCmStatusEntry 1 }

   docsIfCmtsCmStatusMacAddress OBJECT-TYPE
        SYNTAX      MacAddress
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "MAC address of the cable modem.  If the cable modem has
             multiple MAC addresses, this is the MAC address associated
             with the Cable interface."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 8.2.2."
        ::= { docsIfCmtsCmStatusEntry 2 }

   docsIfCmtsCmStatusIpAddress OBJECT-TYPE
        SYNTAX      IpAddress
        MAX-ACCESS  read-only
        STATUS      deprecated
        DESCRIPTION
            "IP address of this cable modem.  If the cable modem has no
             IP address assigned, or the IP address is unknown, this
             object returns a value of 0.0.0.0.  If the cable modem has
             multiple IP addresses, this object returns the IP address
             associated with the Cable interface.
             This object has been deprecated and replaced by
             docsIfCmtsCmStatusInetAddressType and
             docsIfCmtsCmStatusInetAddress, to enable IPv6 addressing
             in the future."
        ::= { docsIfCmtsCmStatusEntry 3 }

   docsIfCmtsCmStatusDownChannelIfIndex OBJECT-TYPE
        SYNTAX      InterfaceIndexOrZero
        MAX-ACCESS  read-only
        STATUS      current

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        DESCRIPTION
            "IfIndex of the downstream channel that this CM is
             connected to.  If the downstream channel is unknown, this
             object returns a value of zero."
        ::= { docsIfCmtsCmStatusEntry 4 }

   docsIfCmtsCmStatusUpChannelIfIndex OBJECT-TYPE
        SYNTAX      InterfaceIndexOrZero
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
           "For DOCSIS 2.0, indicates the ifIndex of the logical
            upstream channel (ifType 205) this CM is connected to.
            For DOCSIS 1.x, indicates the ifIndex of the upstream
             channel (ifType 129) this CM is connected to.
             If the upstream channel is unknown, this object
             returns a value of zero."
        ::= { docsIfCmtsCmStatusEntry 5 }

   docsIfCmtsCmStatusRxPower OBJECT-TYPE
        SYNTAX      TenthdBmV
        UNITS       "ThenthdBmV"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "The receive power as perceived for upstream data from
             this cable modem.
             If the receive power is unknown, this object returns
             a value of zero."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 6.2.18."
        ::= { docsIfCmtsCmStatusEntry 6 }

   docsIfCmtsCmStatusTimingOffset OBJECT-TYPE
        SYNTAX      Unsigned32 (0..4294967295)
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "A measure of the current round trip time for this CM.
             Used for timing of CM upstream transmissions to ensure
             synchronized arrivals at the CMTS.  Units are in terms
             of (6.25 microseconds/64).  Returns zero if the value
             is unknown.
             For channels requiring finer resolution, please refer to
             object docsIfCmtsCmStatusHighResolutionTimingOffset."
        REFERENCE

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            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 6.2.17."
        ::= { docsIfCmtsCmStatusEntry 7 }

   docsIfCmtsCmStatusEqualizationData OBJECT-TYPE
        SYNTAX      DocsEqualizerData
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Equalization data for this CM, as measured by the CMTS.
             Returns the zero-length OCTET STRING if the value is
             unknown or if there is no equalization data available
             or defined."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Figure 8-23."
        ::= { docsIfCmtsCmStatusEntry 8 }

   docsIfCmtsCmStatusValue OBJECT-TYPE
        SYNTAX      INTEGER {
            other(1),
            ranging(2),
            rangingAborted(3),
            rangingComplete(4),
            ipComplete(5),
            registrationComplete(6),
            accessDenied(7),
            operational(8),
            -- value 8 should not be used
            registeredBPIInitializing(9)
        }
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Current cable modem connectivity state, as specified
             in the RF Interface Specification.  Returned status
             information is the CM status, as assumed by the CMTS,
             and indicates the following events:
             other(1)
                Any state other than below.
             ranging(2)
                The CMTS has received an Initial Ranging Request
                message from the CM, and the ranging process is not
                yet complete.
             rangingAborted(3)
                The CMTS has sent a Ranging Abort message to the CM.

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             rangingComplete(4)
                The CMTS has sent a Ranging Complete message to the CM.
             ipComplete(5)
                The CMTS has received a DHCP reply message and
                forwarded it to the CM.
             registrationComplete(6)
                The CMTS has sent a Registration Response message to
                the CM.
             accessDenied(7)
                The CMTS has sent a Registration Aborted message
                to the CM.
             operational(8)
                Value 8 is considered reserved and should not be defined
                in future revisions of this MIB module to avoid conflict
                with documented implementations that support value 8 to
                indicate operational state after completing the BPI
                initialization process.
             registeredBPIInitializing(9)
                Baseline Privacy (BPI) is enabled and the CMTS is in the
                process of completing BPI initialization.  This state
                MAY last for a significant length of time if failures
                occur during the initialization process.  After
                completion of BPI initialization, the CMTS will report
                registrationComplete(6).
             The CMTS only needs to report states it is able to
             detect."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 11.2."
        ::= { docsIfCmtsCmStatusEntry 9 }

   docsIfCmtsCmStatusUnerroreds OBJECT-TYPE
        SYNTAX      Counter32
        UNITS       "codewords"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Codewords received without error from this cable modem.
             Discontinuities in the value of this counter can occur
             at reinitialization of the managed system, and at other
             times as indicated by the value of
             ifCounterDiscontinuityTime for the associated ifIndex."
        REFERENCE
            "Data-Over-Cable Service Interface Specifications: Radio
             Frequency Interface Specification SP-RFIv2.0-I10-051209,
             Section 6.2.4."
        ::= { docsIfCmtsCmStatusEntry 10 }


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