rfc2670.txt

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        DESCRIPTION
            "The initial random backoff window to use when retrying
             transmissions. Expressed as a power of 2. A value of 16
             at the CMTS indicates that a proprietary adaptive retry
             mechanism is to be used. See the associated conformance
             object for write conditions and limitations."
        REFERENCE
            "DOCSIS Radio Frequency Interface Specification,
             Section 6.4.4."
        ::= { docsIfUpstreamChannelEntry 9 }

docsIfUpChannelTxBackoffEnd OBJECT-TYPE
        SYNTAX      Integer32 (0..16)
        MAX-ACCESS  read-write
        STATUS      current
        DESCRIPTION
            "The final random backoff window to use when retrying
             transmissions. Expressed as a power of 2. A value of 16
             at the CMTS indicates that a proprietary adaptive retry
             mechanism is to be used. See the associated conformance
             object for write conditions and limitations."
        REFERENCE
            "DOCSIS Radio Frequency Interface Specification,
             Section 6.4.4."
        ::= { docsIfUpstreamChannelEntry 10 }




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-- The following table describes the attributes of each class of
-- service.  The entries in this table are referenced from the
-- docsIfServiceEntries.  They exist as a separate table in order to
-- reduce redundant information in docsIfServiceTable.
--
-- This table is implemented at both the CM and the CMTS.
-- The CM need only maintain entries for the classes of service
-- referenced by its docsIfServiceTable.
--

docsIfQosProfileTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfQosProfileEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Describes the attributes for each class of service."
        ::= { docsIfBaseObjects 3 }

docsIfQosProfileEntry OBJECT-TYPE
        SYNTAX      DocsIfQosProfileEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "Describes the attributes for a single class of service.

             If implemented as read-create in the Cable Modem
             Termination System, creation of entries in this table is
             controlled by the value of docsIfCmtsQosProfilePermissions.

             If implemented as read-only, entries are created based
             on information in REG-REQ MAC messages received from
             Cable Modems (Cable Modem Termination System
             implementation), or based on information extracted from
             the TFTP option file (Cable Modem implementation).
             In the Cable Modem Termination system, read-only entries
             are removed if no longer referenced by
             docsIfCmtsServiceTable.

             An entry in this table must not be removed while it is
             referenced by an entry in docsIfCmServiceTable (Cable Modem)
             or docsIfCmtsServiceTable (Cable Modem Termination System).

             An entry in this table should not be changeable while
             it is referenced by an entry in docsIfCmtsServiceTable.

             If this table is created automatically, there should only
             be a single entry for each Class of Service. Multiple
             entries with the same Class of Service parameters are not



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             recommended."
        INDEX { docsIfQosProfIndex }
        ::= { docsIfQosProfileTable 1 }

DocsIfQosProfileEntry ::= SEQUENCE {
            docsIfQosProfIndex                Integer32,
            docsIfQosProfPriority             Integer32,
            docsIfQosProfMaxUpBandwidth       Integer32,
            docsIfQosProfGuarUpBandwidth      Integer32,
            docsIfQosProfMaxDownBandwidth     Integer32,
            docsIfQosProfMaxTxBurst           Integer32,
            docsIfQosProfBaselinePrivacy      TruthValue,
            docsIfQosProfStatus               RowStatus
        }

docsIfQosProfIndex OBJECT-TYPE
        SYNTAX      Integer32 (1..16383)
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "The index value which uniquely identifies an entry
             in the docsIfQosProfileTable."
        ::= { docsIfQosProfileEntry 1 }

docsIfQosProfPriority  OBJECT-TYPE
        SYNTAX      Integer32 (0..7)
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "A relative priority assigned to this service when
             allocating bandwidth. Zero indicates lowest priority;
             and seven indicates highest priority.
             Interpretation of priority is device-specific.
             MUST NOT be changed while this row is active."
        DEFVAL { 0 }
        ::= { docsIfQosProfileEntry 2 }

docsIfQosProfMaxUpBandwidth OBJECT-TYPE
        SYNTAX      Integer32 (0..100000000)
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "The maximum upstream bandwidth, in bits per second,
             allowed for a service with this service class.
             Zero if there is no restriction of upstream bandwidth.
             MUST NOT be changed while this row is active."
        DEFVAL { 0 }
        ::= { docsIfQosProfileEntry 3 }



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docsIfQosProfGuarUpBandwidth OBJECT-TYPE
        SYNTAX      Integer32 (0..100000000)
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "Minimum guaranteed upstream bandwidth, in bits per second,
             allowed for a service with this service class.
             MUST NOT be changed while this row is active."
        DEFVAL { 0 }
        ::= { docsIfQosProfileEntry 4 }

docsIfQosProfMaxDownBandwidth OBJECT-TYPE
        SYNTAX      Integer32 (0..100000000)
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "The maximum downstream bandwidth, in bits per second,
             allowed for a service with this service class.
             Zero if there is no restriction of downstream bandwidth.
             MUST NOT be changed while this row is active."
        DEFVAL { 0 }
        ::= { docsIfQosProfileEntry 5 }

docsIfQosProfMaxTxBurst OBJECT-TYPE
        SYNTAX      Integer32 (0..255)
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "The maximum number of mini-slots that may be requested
             for a single upstream transmission.
             A value of zero means there is no limit.
             MUST NOT be changed while this row is active."
        DEFVAL { 0 }
        ::= { docsIfQosProfileEntry 6 }

docsIfQosProfBaselinePrivacy  OBJECT-TYPE
        SYNTAX      TruthValue
        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "Indicates whether Baseline Privacy is enabled for this
             service class.
             MUST NOT be changed while this row is active."
        DEFVAL { false }
        ::= { docsIfQosProfileEntry 7 }

docsIfQosProfStatus OBJECT-TYPE
        SYNTAX      RowStatus



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        MAX-ACCESS  read-create
        STATUS      current
        DESCRIPTION
            "This is object is to used to create or delete rows in
             this table.  This object MUST NOT be changed from active
             while the row is referenced by the any entry in either
             docsIfCmServiceTable (on the CM), or the
             docsIfCmtsServiceTable (on the CMTS)."
        ::= { docsIfQosProfileEntry 8 }


docsIfSignalQualityTable OBJECT-TYPE
        SYNTAX      SEQUENCE OF DocsIfSignalQualityEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "At the CM, describes the PHY signal quality of downstream
             channels. At the CMTS, describes the PHY signal quality of
             upstream channels. At the CMTS, this table may exclude
             contention intervals."
        ::= { docsIfBaseObjects 4 }

docsIfSignalQualityEntry OBJECT-TYPE
        SYNTAX      DocsIfSignalQualityEntry
        MAX-ACCESS  not-accessible
        STATUS      current
        DESCRIPTION
            "At the CM, describes the PHY characteristics of a
             downstream channel. At the CMTS, describes the PHY signal
             quality of an upstream channel.
             An entry in this table exists for each ifEntry with an
             ifType of docsCableUpstream(129) for Cable Modem Termination
             Systems and docsCableDownstream(128) for Cable Modems."
        INDEX { ifIndex }
        ::= { docsIfSignalQualityTable 1 }

DocsIfSignalQualityEntry ::= SEQUENCE {
            docsIfSigQIncludesContention  TruthValue,
            docsIfSigQUnerroreds          Counter32,
            docsIfSigQCorrecteds          Counter32,
            docsIfSigQUncorrectables      Counter32,
            docsIfSigQSignalNoise         TenthdB,
            docsIfSigQMicroreflections    Integer32,
            docsIfSigQEqualizationData    OCTET STRING
        }

docsIfSigQIncludesContention OBJECT-TYPE
        SYNTAX      TruthValue



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        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "true(1) if this CMTS includes contention intervals in
             the counters in this table. Always false(2) for CMs."
        REFERENCE
            "DOCSIS Radio Frequency Interface specification,
             Section 6.4.4"
        ::= { docsIfSignalQualityEntry 1 }

docsIfSigQUnerroreds OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Codewords received on this channel without error.
             This includes all codewords, whether or not they
             were part of frames destined for this device."
        REFERENCE
            "DOCSIS Radio Frequency Interface specification,
             Section 4.2.3 and 4.3.6"
        ::= { docsIfSignalQualityEntry 2 }

docsIfSigQCorrecteds OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Codewords received on this channel with correctable
             errors. This includes all codewords, whether or not
             they were part of frames destined for this device."
        REFERENCE
            "DOCSIS Radio Frequency Interface specification,
             Section 4.2.3 and 4.3.6"
        ::= { docsIfSignalQualityEntry 3 }

docsIfSigQUncorrectables OBJECT-TYPE
        SYNTAX      Counter32
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Codewords received on this channel with uncorrectable
             errors. This includes all codewords, whether or not
             they were part of frames destined for this device."
        REFERENCE
            "DOCSIS Radio Frequency Interface specification,
             Section 4.2.3 and 4.3.6"
        ::= { docsIfSignalQualityEntry 4 }



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RFC 2670                DOCSIS RF Interface MIB              August 1999


docsIfSigQSignalNoise OBJECT-TYPE
        SYNTAX      TenthdB
        UNITS       "dB"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Signal/Noise ratio as perceived for this channel.
             At the CM, describes the Signal/Noise of the downstream
             channel.  At the CMTS, describes the average Signal/Noise
             of the upstream channel."
        REFERENCE
            "DOCSIS Radio Frequency Interface specification,
             Table 2-1 and 2-2"
        ::= { docsIfSignalQualityEntry 5 }

docsIfSigQMicroreflections OBJECT-TYPE
        SYNTAX      Integer32 (0..255)
        UNITS       "dBc"
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "Total microreflections including in-channel response
             as perceived on this interface, measured in dBc below
             the signal level.
             This object is not assumed to return an absolutely
             accurate value, but should give a rough indication
             of microreflections received on this interface.
             It is up to the implementor to provide information
             as accurate as possible."
        REFERENCE
            "DOCSIS Radio Frequency Interface specification,
             Table 2-1 and 2-2"
        ::= { docsIfSignalQualityEntry 6 }

docsIfSigQEqualizationData OBJECT-TYPE
        SYNTAX      OCTET STRING
        MAX-ACCESS  read-only
        STATUS      current
        DESCRIPTION
            "At the CM, returns the equalization data for the downstream
             channel. At the CMTS, returns the average equalization
             data for the upstream channel. Returns an empty string
             if the value is unknown or if