RFC4546

                                                           June 2006

  Radio Frequency (RF) Interface Management Information Base

                    Compliant RF Interfaces

  Cable Modem Termination System (CMTS) (docsIfBaseObjects).

  (docsIfCmObjects).

  only (docsIfCmtsObjects).

                             | <== to network layer
       +------------------ --+-------------------------------+
       |                     RF MAC                          |
       +--+------------------+------------------------+------+
          |                  |                        |
  +-------+-----+     +------+------+          +------+------+
  | Downstream1 |     |  Upstream1  |          |  Upstream2  |
  |             |     |             |          |             |
  +-------------+     ++-----------++          ++-----------++
                       |           |            |           |
                  +----+----+ +----+----+  +----+----+ +----+----+
                  |  Ch-1   | |  Ch-2   |  |  Ch-1   | |  Ch-2   |
                  |(A/TDMA) | |(S-CDMA) |  |(A/TDMA) | |(S-CDMA) |
                  +---------+ +---------+  +---------+ +---------+

                             Figure 1

  ifIndex       ifType                     Description

     2    docsCableMaclayer(127)           CATV MAC Layer
     3    docsCableDownstream(128)         CATV Downstream interface
     4    docsCableUpstream(129)           CATV Upstream interface
     5    docsCableUpstream(129)           CATV Upstream interface
     6    docsCableUpstreamChannel(205)    CATV Upstream Channel
     7    docsCableUpstreamChannel(205)    CATV Upstream Channel
     8    docsCableUpstreamChannel(205)    CATV Upstream Channel
     9    docsCableUpstreamChannel(205)    CATV Upstream Channel

                             Figure 2

          | IfStackHigherLayer | ifStackLowerLayer |
          |         0          |         2         |
          |         2          |         3         |
          |         2          |         4         |
          |         2          |         5         |
          |         4          |         6         |
          |         4          |         7         |
          |         5          |         8         |
          |         5          |         9         |
          |         3          |         0         |
          |         6          |         0         |
          |         7          |         0         |
          |         8          |         0         |
          |         9          |         0         |

                             Figure 3

          Termination System

                 by an ifEntry.

                 The returned value is the raw bandwidth in bits/s
                 of this interface.  This is the symbol rate
                 multiplied with the number of bits per symbol.

                 The returned value is the raw bandwidth in
                 megabits/s of this interface.  This is the symbol
                 rate multiplied with the number of bits per
                 symbol.

                 sent on this interface, specified in octets.
                 The value includes the length of the MAC header.

                 Return zero.

                 Return zero.

                 interface.  This includes MAC packets as well as
                 data packets, and includes the length of the MAC
                 header.

                 interface.  This includes MAC packets as well as
                 data packets.

                 Return the number of multicast packets
                 transmitted on this interface.
                 This includes MAC packets as well as data
                 packets.

                 Return the number of broadcast packets transmitted
                 on this interface.  This includes MAC packets as
                 well as data packets.

                 were discarded.  Possible reasons are:
                 buffer shortage.

                 transmitted due to errors.

                 by an ifEntry.

                 The returned value the raw bandwidth in bits/s
                 of this interface.  This is the symbol rate
                 multiplied with the number of bits per symbol.

                 The returned value the raw bandwidth in megabits/s
                 of this interface.  This is the symbol rate
                 multiplied with the number of bits per symbol.

                 received from this interface, specified in octets.
                 The value includes the length of the MAC header.

                 interface.  This includes data packets as well as
                 MAC packets, and includes the length of the
                 MAC header.

                 interface.  This includes data packets as well as
                 MAC packets.

                 Return the number of multicast packets received
                 on this interface.  This includes data packets as
                 well as MAC packets.

                 Return the number of broadcast packets received
                 on this interface.  This includes data packets
                 as well as MAC packets.

                 been discarded.
                 The possible reasons are: buffer shortage.

                 errors preventing them from being deliverable
                 to higher layers.
                 Possible reasons are: MAC FCS error.

                 These are MAC frames with an unknown packet type.

                 Return zero.

                 Return zero.

          System

                 by an ifEntry.

                 throughput) supported by the interface.
                 The maximum throughput is calculated for the case
                 where upstream channels are configured to maximize
                 interface throughput.

                 throughput) supported by the interface.
                 The maximum throughput is calculated for the case
                 where upstream channels are configured to maximize
                 interface throughput.  Units for this object are
                 (1/1 000 000) * IfSpeed.

                 This reflects the total status of all the channels
                 under this interface.  So if at least one channel
                 has a physical connection this interface has
                 connection.

                 transmitted on this interface, specified in
                 octets.  The value includes the length of the MAC
                 header.  This is the maximum of all the ifMtu of
                 all the channels under this interface.

                 the upstream channels under this
                 interface.  This includes data packets as well as
                 MAC packets, and includes the length of the
                 MAC header.

                 all the upstream channels under this
                 interface.  This includes data packets as well as
                 MAC packets.

                 Return the total number of multicast packets
                 received on all the upstream channels under this
                 interface.  This includes data packets as well as
                 MAC layer packets.

                 Return the total number of broadcast packets
                 received on all the upstream channels under this
                 interface.  This includes data packets as well as
                 MAC packets.

                 been discarded on all the upstream channels under
                 this interface.
                 The possible reasons are: buffer shortage.

                 errors preventing them from being deliverable
                 to higher layers.
                 Possible reasons are: MAC FCS error.

                 type.  These are MAC frames with an unknown packet
                 type.

                 Return zero.

                 Return zero.

                 by an ifEntry.

                 The returned value is the raw bandwidth
                 in bits/s of this interface.

                 The returned value is the raw bandwidth
                 in megabits/s of this interface.

                 transmitted on this interface, specified in
                 octets.  The value includes the length of the MAC
                 header.

                 Return zero.

                 Return zero.

                 interface.  This includes MAC packets as well as
                 data packets, and includes the length of the MAC
                 header.

                 interface.  This includes MAC packets as well as
                 data packets.

                 Return the number of multicast packets transmitted
                 on this interface.
                 This includes MAC packets as well as data packets.

                 Return the number of broadcast packets transmitted
                 on this interface.
                 This includes MAC packets as well as data packets.

                 were discarded.  Possible reasons are:
                 buffer shortage.

                 transmitted due to errors.

          System

                 by an ifEntry.

                 The returned value is the raw bandwidth
                 in bits/s of this channel.

                 The returned value is the raw bandwidth
                 in megabits/s of this channel.

                 received on this interface, specified in octets.
                 The value includes the length of the MAC header.

                 interface.  This includes data packets as well as
                 MAC packets, and includes the length of the
                 MAC header.

                 The number of unicast packets received on this
                 interface.  This includes data packets as well as
                 MAC packets.

                 Return the number of multicast packets received
                 on this interface.  This includes data packets as
                 well as MAC layer packets.

                 Return the number of broadcast packets received
                 on this interface.  This includes data packets
                 as well as MAC packets.

                 been discarded.
                 The possible reasons are: buffer shortage.

                 errors preventing them from being deliverable
                 to higher layers.
                 Possible reasons are: MAC FCS error.

                 These are MAC frames with an unknown packet type.

                 Return zero.

                 Return zero.

                 by an ifEntry.

                 layer interface.

                 interface, targeted for upper protocol layers.

                 interface, targeted for upper protocol layers.

                 Return the number of multicast packets received
                 on this interface, targeted for upper protocol
                 layers.

                 Return the number of broadcast packets received
                 on this interface, targeted for upper protocol
                 layers.

                 been discarded.
                 The possible reasons are: buffer shortage.

                 errors preventing them from being deliverable
                 to higher layers.
                 Possible reasons are: data packet FCS error,
                 invalid MAC header.

                 This is the number of data packets targeted for
                 upper protocol layers with an unknown packet type.

                 protocol layers and transmitted on this interface.

                 Return the number of multicast packets received
                 from upper protocol layers and transmitted on this
                 interface.

                 Return the number of broadcast packets received
                 from upper protocol layers and transmitted on this
                 interface.

                 were discarded.  Possible reasons are:
                 buffer shortage.

                 transmitted due to errors.

  set to 'createAndWait', which turns the new create entry status to
  'notReady'.

  the physical interface ifIndex value performs two actions:

  *  Creates the association of the physical interface to the
     temporary interface.

  *  Copies the original upstream parameters from the physical
     interface to the temporary interface, which turns its status to
     'notInService'.

  desired values.

  interface is successful if all parameters in the temporary
  interface are valid for the associated physical interface;
  otherwise, the temporary entry remains with status 'notInservice',
  and the SET returns the error 'commitFailed'.

  docsIfUpChannelUpdate to 'true' transfers the temporary interface
  parameters values to the physical interface.

  is destroyed, setting the docsIfUpChannelStatus to 'destroy'.

 IMPORTS
    MODULE-IDENTITY,
    OBJECT-TYPE,
    Unsigned32,
    Integer32,
    Counter32,
    Counter64,
    TimeTicks,
    IpAddress,
    transmission
            FROM SNMPv2-SMI        -- RFC2578
    TEXTUAL-CONVENTION,
    MacAddress,
    RowStatus,
    TruthValue,
    TimeInterval,
    TimeStamp,
    StorageType
            FROM SNMPv2-TC         -- RFC2579
    OBJECT-GROUP,

    MODULE-COMPLIANCE
            FROM SNMPv2-CONF       -- RFC2580
    ifIndex, InterfaceIndexOrZero
            FROM IF-MIB            -- RFC2863
    InetAddressType,
    InetAddress
            FROM INET-ADDRESS-MIB  -- RFC4001
    IANAifType
            FROM IANAifType-MIB;   -- [IANA]

    LAST-UPDATED    "200605240000Z" -- May 24, 2006
    ORGANIZATION    "IETF IPCDN Working Group"
    CONTACT-INFO

        "        David Raftus
         Postal: ATI Technologies Inc.
                 340 Terry Fox Drive, Suite 202
                 Ottawa Ontario
                 Canada
         Phone:  +1 613 592 1052 ext.222
         E-mail: [email protected]

                 Eduardo Cardona
         Postal: Cable Television Laboratories, Inc.
                 858 Coal Creek Circle
                 Louisville, CO 80027-9750
                 U.S.A.
         Phone:  Tel:    +1 303 661 9100
                 Fax:    +1 303 661 9199
         E-mail: [email protected];[email protected]

         IETF IPCDN Working Group
         General Discussion: [email protected]
         Subscribe: http://www.ietf.org/mailman/listinfo/ipcdn
         Archive: ftp://ftp.ietf.org/ietf-mail-archive/ipcdn
         Co-chairs: Richard Woundy, [email protected]
                    Jean-Francois Mule, [email protected]"
    DESCRIPTION
        "This is the MIB Module for DOCSIS 2.0-compliant Radio
         Frequency (RF) interfaces in Cable Modems and
         Cable Modem Termination Systems.

         Copyright (C) The Internet Society (2006).  This
         version of this MIB module is part of RFC 4546; see
         the RFC itself for full legal notices."

    REVISION        "200605240000Z"
    DESCRIPTION
        "Revision of the IETF RF MIB module for DOCSIS 2.0.
         This version published as RFC 4546.
         This MIB module revision includes the following
         among others:
         Usage of ifType (205) for upstream logical channels.
         Addition of downstream and upstream utilization
         counters.
         Additional statistics per upstream interface.
         Upstream channel offline configuration mechanism.
         Added MIB support for new DOCSIS 2.0 modulation
         attributes.
         Euro-DOCSIS downstream interleave values.
         Adjustments to RFC 2670 definitions based on
         the MIB review guidelines from the IETF

         Operations and Management Area (OPS)."

    REVISION "199908190000Z"
    DESCRIPTION
        "Initial version, published as RFC 2670.
         Modified by Mike St. Johns to fix problems identified by
         the first pass of the MIB doctor.  Of special note,
         docsIfRangingResp and docsIfCmtsInsertionInterval were
         obsoleted and replaced by other objects with the same
         functionality, but with more appropriate syntax."
    ::= { transmission 127 }

    DISPLAY-HINT "d-1"
    STATUS       current
    DESCRIPTION
        "This data type represents power levels that are normally
         expressed in dBmV.  Units are in tenths of a dBmV;
         for example, 5.1 dBmV will be represented as 51."
    SYNTAX       Integer32

    DISPLAY-HINT "d-1"
    STATUS       current
    DESCRIPTION
        "This data type represents power levels that are normally
         expressed in dB.  Units are in tenths of a dB;
         for example, 5.1 dB will be represented as 51."
    SYNTAX       Integer32

   STATUS          current
   DESCRIPTION
       "Indicates the DOCSIS Radio Frequency specification being
        referenced.
        'docsis10' indicates DOCSIS 1.0.
        'docsis11' indicates DOCSIS 1.1.
        'docsis20' indicates DOCSIS 2.0."
   SYNTAX        INTEGER {
        docsis10 (1),
        docsis11 (2),
        docsis20 (3)
   }

   STATUS          current
   DESCRIPTION
       "Indicates the referenced quality-of-service
        level.
        'docsis10 refers to DOCSIS 1.0 Class of
        Service queuing services, and 'docsis11' refers
        to DOCSIS 1.1 Quality of Service."
   SYNTAX        INTEGER {
       docsis10 (1),
       docsis11 (2)
   }

   STATUS          current
   DESCRIPTION
        "Indicates the DOCSIS Upstream Channel Type.
         'unknown' means information not available.
         'tdma' is related to TDMA, Time Division
         Multiple Access; 'atdma' is related to A-TDMA,
         Advanced Time Division Multiple Access,
         'scdma' is related to S-CDMA, Synchronous
         Code Division Multiple Access.
         'tdmaAndAtdma is related to simultaneous support of
         TDMA and A-TDMA modes."
   SYNTAX          INTEGER {
       unknown(0),
       tdma(1),
       atdma(2),
       scdma(3),
       tdmaAndAtdma(4)
   }

DocsEqualizerData ::= TEXTUAL-CONVENTION
     STATUS       current
     DESCRIPTION
         "This data type represents the equalizer data
          as measured at the receiver interface.
          The format of the equalizer follows the structure of the
          Transmit Equalization Adjust RNG-RSP TLV of DOCSIS RFI
          v2.0 :
          1 byte Main tap location 1..(n + m)
          1 byte Number of forward taps per symbol
          1 byte Number of forward taps: n
          1 byte Number of reverse taps: m

          Following are the equalizer coefficients:
          First, forward taps coefficients:
          2 bytes F1 (real),  2 bytes  F1 (imag)

          ...
          2 bytes Fn (real),  2 bytes  Fn (imag)

          Then, reverse taps coefficients:
          2 bytes D1 (real),  2 bytes  D1 (imag)
          ...

          2 bytes Dm (real),  2 bytes  Dm (imag)

          The equalizer coefficients are considered signed 16-bit
          integers in the range from -32768 (0x8000) to 32767
          (0x7FFF).

          DOCSIS specifications require up to a maximum of
          64 equalizer taps (n + m); therefore, this object size
           can get up 260 bytes (4 + 4x64).
          The minimum object size (other than zero) for a t-spaced
          tap with a minimum of 8 symbols will be 36 (4 + 4x8)."
     REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Figure 8-23."
     SYNTAX       OCTET STRING(SIZE (0 | 36..260))

    SYNTAX      SEQUENCE OF DocsIfDownstreamChannelEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "This table describes the attributes of downstream
         channels (frequency bands)."
    REFERENCE

        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-16, and 6-17."
    ::= { docsIfBaseObjects 1 }

    SYNTAX      DocsIfDownstreamChannelEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "An entry provides a list of attributes for a single
         downstream channel.
         An entry in this table exists for each ifEntry with an
         ifType of docsCableDownstream(128)."
    INDEX { ifIndex }
    ::= { docsIfDownstreamChannelTable 1 }

        docsIfDownChannelId               Integer32,
        docsIfDownChannelFrequency        Integer32,
        docsIfDownChannelWidth            Integer32,
        docsIfDownChannelModulation       INTEGER,
        docsIfDownChannelInterleave       INTEGER,
        docsIfDownChannelPower            TenthdBmV,
        docsIfDownChannelAnnex            INTEGER,
        docsIfDownChannelStorageType      StorageType
    }

    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The Cable Modem Termination System identification of the
         downstream channel within this particular MAC interface.
         if the interface is down, the object returns the most
         current value.  If the downstream channel ID is unknown,
         this object returns a value of 0."
    ::= { docsIfDownstreamChannelEntry 1 }

    SYNTAX      Integer32 (0..1000000000)
    UNITS       "hertz"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The center of the downstream frequency associated with
         this channel.  This object will return the current tuner

         frequency.  If a CMTS provides IF output, this object
         will return 0, unless this CMTS is in control of the
         final downstream frequency.  See the associated
         compliance object for a description of valid frequencies
         that may be written to this object."

    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.3.3."
    ::= { docsIfDownstreamChannelEntry 2 }

    SYNTAX      Integer32 (0..16000000)
    UNITS       "hertz"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The bandwidth of this downstream channel.  Most
         implementations are expected to support a channel width
         of 6 MHz (North America) and/or 8 MHz (Europe).  See the
         associated compliance object for a description of the
         valid channel widths for this object."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 6-17."
    ::= { docsIfDownstreamChannelEntry 3 }

    SYNTAX      INTEGER {
        unknown(1),
        other(2),
        qam64(3),
        qam256(4)
    }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The modulation type associated with this downstream
         channel.  If the interface is down, this object either
         returns the configured value (CMTS), the most current
         value (CM), or the value of unknown(1).  See the
         associated conformance object for write conditions and
         limitations.  See the reference for specifics on the
         modulation profiles implied by qam64 and qam256."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio

         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 6-17."
    ::= { docsIfDownstreamChannelEntry 4 }

    SYNTAX      INTEGER {
        unknown(1),
        other(2),
        taps8Increment16(3),
        taps16Increment8(4),
        taps32Increment4(5),
        taps64Increment2(6),
        taps128Increment1(7),
        taps12increment17(8)
    }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The Forward Error Correction (FEC) interleaving used
         for this downstream channel.
         Values are defined as follows:
         taps8Increment16(3):   protection 5.9/4.1 usec,
                                latency .22/.15 msec
         taps16Increment8(4):   protection 12/8.2 usec,
                                latency .48/.33 msec
         taps32Increment4(5):   protection 24/16 usec,
                                latency .98/.68 msec
         taps64Increment2(6):   protection 47/33 usec,
                                latency 2/1.4 msec
         taps128Increment1(7):  protection 95/66 usec,
                                latency 4/2.8 msec
         taps12increment17(8):  protection 18/14 usec,
                                latency 0.43/0.32 msec

        The value 'taps12increment17' is supported by EuroDOCSIS
        cable systems only, and the others by DOCSIS cable systems.

         If the interface is down, this object either returns
         the configured value (CMTS), the most current value (CM),
         or the value of unknown(1).
         The value of other(2) is returned if the interleave
         is known but not defined in the above list.
         See the associated conformance object for write
         conditions and limitations.  See the reference for the FEC
         configuration described by the setting of this object."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,

         Table 6-15."
    ::= { docsIfDownstreamChannelEntry 5 }

    SYNTAX      TenthdBmV
    UNITS       "dBmV"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "At the CMTS, the operational transmit power.  At the CM,
         the received power level.
         If the interface is down, this object either returns
         the configured value (CMTS), the most current value (CM)
         or the value of 0.  See the associated conformance object
         for write conditions and limitations.  See the reference
         for recommended and required power levels."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-16, 6-17."
    ::= { docsIfDownstreamChannelEntry 6 }

    SYNTAX      INTEGER {
        unknown(1),
        other(2),
        annexA(3),
        annexB(4),
        annexC(5)
    }
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of this object indicates the conformance of
         the implementation to important regional cable standards.
         annexA : Annex A from ITU-T J.83 is used.
                  (equivalent to EN 300 429)
         annexB : Annex B from ITU-T J.83 is used.
         annexC : Annex C from ITU-T J.83 is used."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Sections 6.3.1, and H.3.1."
    ::= { docsIfDownstreamChannelEntry 7 }

    SYNTAX       StorageType
    MAX-ACCESS   read-only

    STATUS       current
    DESCRIPTION
        "The storage type for this conceptual row.
         Entries with this object set to permanent(4)
         do not require write operations for read-write
         objects."
    ::= { docsIfDownstreamChannelEntry 8 }

    SYNTAX      SEQUENCE OF DocsIfUpstreamChannelEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "This table describes the attributes of attached upstream
         channels."
    ::= { docsIfBaseObjects 2 }

    SYNTAX      DocsIfUpstreamChannelEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "List of attributes for a single upstream channel.  For
         DOCSIS 2.0 CMTSs, an entry in this table exists for
         each ifEntry with an ifType of docsCableUpstreamChannel
         (205).
         For DOCSIS 1.x CM/CMTSs and DOCSIS 2.0 CMs, an entry in
         this table exists for each ifEntry with an ifType of
         docsCableUpstream (129).

         For DOCSIS 2.0 CMTSs, two classes of interfaces can be
         defined for this table:
          o Upstream Physical Interfaces: The traditional DOCSIS
            1.x CMTS upstream interface ifType 129 and the DOCSIS
            2.0 ifType 205 that are functional.  In other words,
            interfaces that represent upstream receivers within
            an RF MAC interface.
            Entries of physical interfaces are exposed to the
            management interface with their corresponding
            ifStack hierarchy and are not administratively
            created by this table.

          o Upstream Temporary Interfaces: A fictitious
            interface created for the purpose of manipulating
            physical interface parameters offline, then
            validating prior to updating the target physical
            interface.

         In case of a reinitialization of the managed system,
         physical interfaces values persist while the temporary
         interfaces are not recreated.

         This mechanism helps to minimize service disruptions
         originating in situations where a group of interface
         parameter values need to be consistent with each other
         in SET operations.  A temporary buffer
         (temporary interface) is provided to allow the CMTS
         to validate the parameters offline."
    INDEX { ifIndex }
    ::= { docsIfUpstreamChannelTable 1 }

        docsIfUpChannelId                     Integer32,
        docsIfUpChannelFrequency              Integer32,
        docsIfUpChannelWidth                  Integer32,
        docsIfUpChannelModulationProfile      Unsigned32,
        docsIfUpChannelSlotSize               Unsigned32,
        docsIfUpChannelTxTimingOffset         Unsigned32,
        docsIfUpChannelRangingBackoffStart    Integer32,
        docsIfUpChannelRangingBackoffEnd      Integer32,
        docsIfUpChannelTxBackoffStart         Integer32,
        docsIfUpChannelTxBackoffEnd           Integer32,
        docsIfUpChannelScdmaActiveCodes       Unsigned32,
        docsIfUpChannelScdmaCodesPerSlot      Integer32,
        docsIfUpChannelScdmaFrameSize         Unsigned32,
        docsIfUpChannelScdmaHoppingSeed       Unsigned32,
        docsIfUpChannelType                   DocsisUpstreamType,
        docsIfUpChannelCloneFrom              InterfaceIndexOrZero,
        docsIfUpChannelUpdate                 TruthValue,
        docsIfUpChannelStatus                 RowStatus,
        docsIfUpChannelPreEqEnable            TruthValue
    }

    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The CMTS identification of the upstream channel."
    ::= { docsIfUpstreamChannelEntry 1 }

    SYNTAX      Integer32 (0..1000000000)
    UNITS       "hertz"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The center of the frequency band associated with this
         upstream interface.  This object returns 0 if the frequency
         is undefined or unknown.  Minimum permitted upstream
         frequency is 5,000,000 Hz for current technology.  See
         the associated conformance object for write conditions
         and limitations."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 4-2."
    ::= { docsIfUpstreamChannelEntry 2 }

    SYNTAX      Integer32 (0..64000000)
    UNITS       "hertz"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The bandwidth of this upstream interface.  This object
         returns 0 if the interface width is undefined or unknown.
         Minimum permitted interface width is currently 200,000 Hz.
         See the associated conformance object for write conditions
         and limitations."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 6-5."
    ::= { docsIfUpstreamChannelEntry 3 }

    SYNTAX      Unsigned32
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "An entry identical to the docsIfModIndex in the
         docsIfCmtsModulationTable that describes this channel.
         This channel is further instantiated there by a grouping
         of interval usage codes (IUCs) that, together, fully
         describe the channel modulation.  This object returns 0 if
         the docsIfCmtsModulationTable entry does not exist or is
         empty.  See the associated conformance object for write
         conditions and limitations.

         Setting this object returns an 'inconsistentValue'
         error if the following conditions are not satisfied:
         1. All the IUC entries in the selected modulation profile
         MUST have the same value of docsIfCmtsModChannelType.
         2. All of the Modulation parameters in the selected
         modulation profile MUST be consistent with the other
         parameters in this docsIfUpstreamChannelEntry."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 8-19."
    ::= { docsIfUpstreamChannelEntry 4 }

    SYNTAX      Unsigned32
    UNITS       "ticks"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Applicable to TDMA and ATDMA channel types only.
         The number of 6.25 microsecond ticks in each upstream
         mini-slot.  Returns zero if the value is undefined or
         unknown or in case of an SCDMA channel.
         See the associated conformance object for write
         conditions and limitations."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 8.1.2.4."
    ::= { docsIfUpstreamChannelEntry 5 }

    SYNTAX      Unsigned32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "At the CM, a measure of the current round trip time
         obtained from the ranging offset (initial ranging offset +
         ranging offset adjustments).
         At the CMTS, the maximum of timing offset, among all the
         CMs that are/were present on the channel, taking into
         account all ( initial + periodic ) timing offset
         corrections that were sent for each of the CMs.  Generally,
         these measurements are positive, but if the measurements
         are negative, the value of this object is zero.  Used for
         timing of CM upstream transmissions to ensure synchronized
         arrivals at the CMTS.
         Units are one 64th fraction of 6.25 microseconds."

    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.19."
    ::= { docsIfUpstreamChannelEntry 6 }

    SYNTAX      Integer32 (0..16)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The initial random backoff window to use when retrying
         Ranging Requests.  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
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Sections 8.3.4, and 9.4."
    ::= { docsIfUpstreamChannelEntry 7 }

    SYNTAX      Integer32 (0..16)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The final random backoff window to use when retrying
         Ranging Requests.  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
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 8.3.4, and 9.4."
    ::= { docsIfUpstreamChannelEntry 8 }

    SYNTAX      Integer32 (0..16)
    MAX-ACCESS  read-create
    STATUS      current
    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
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 8.3.4, and 9.4."
    ::= { docsIfUpstreamChannelEntry 9 }

    SYNTAX      Integer32 (0..16)
    MAX-ACCESS  read-create
    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
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 8.3.4, and 9.4."
    ::= { docsIfUpstreamChannelEntry 10 }

    SYNTAX     Unsigned32 (0|64..66|68..70|72|74..78|80..82|84..88
                            |90..96|98..100|102|104..106|108
                            |110..112|114..126|128)
    MAX-ACCESS read-create
    STATUS     current
    DESCRIPTION
        "Applicable for SCDMA channel types only.
         Number of active codes.  Returns zero for
         Non-SCDMA channel types.  Note that legal
         values from 64..128 MUST be non-prime."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.11.2.1."
    ::= { docsIfUpstreamChannelEntry 11 }

    SYNTAX      Integer32(0 | 2..32)
    UNITS       "codesperMinislots"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Applicable for SCDMA channel types only.
         The number of SCDMA codes per mini-slot.
         Returns zero if the value is undefined or unknown or in

         case of a TDMA or ATDMA channel."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.11.2.1."
    ::= { docsIfUpstreamChannelEntry 12 }

    SYNTAX      Unsigned32 (0..32)
    UNITS       "spreadIntervals"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Applicable for SCDMA channel types only.
         SCDMA Frame size in units of spreading intervals.
         This value returns zero for non-SCDMA Profiles."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.12."
    ::= { docsIfUpstreamChannelEntry 13 }

    SYNTAX     Unsigned32 (0..32767)
    MAX-ACCESS read-create
    STATUS     current
    DESCRIPTION
        "Applicable for SCDMA channel types only.
         15-bit seed used for code hopping sequence initialization.
         Returns zero for non-SCDMA channel types.
         Setting this value to a value different than zero for
         non-SCDMA channel types returns the error 'wrongValue'."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.14.1."
    ::= { docsIfUpstreamChannelEntry 14 }

    SYNTAX      DocsisUpstreamType
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Reflects the Upstream channel type.
         This object returns the value of docsIfCmtsModChannelType
         for the modulation profile selected in
         docsIfUpChannelModulationProfile for this row."
    REFERENCE

        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.1."
    ::= { docsIfUpstreamChannelEntry 15 }

    SYNTAX      InterfaceIndexOrZero
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "This object contains the ifIndex value of the physical
         interface row entry whose parameters are to be adjusted.

         Upon setting this object to the ifIndex value of a
         physical interface, the following interface objects values
         are copied to this entry:
         docsIfUpChannelFrequency,
         docsIfUpChannelWidth,
         docsIfUpChannelModulationProfile,
         docsIfUpChannelSlotSize,
         docsIfUpChannelRangingBackoffStart,
         docsIfUpChannelRangingBackoffEnd,
         docsIfUpChannelTxBackoffStart,
         docsIfUpChannelTxBackoffEnd,
         docsIfUpChannelScdmaActiveCodes,
         docsIfUpChannelScdmaCodesPerSlot,
         docsIfUpChannelScdmaFrameSize,
         docsIfUpChannelScdmaHoppingSeed,
         docsIfUpChannelType, and
         docsIfUpChannelPreEqEnable
         Setting this object to the value of a non-existent or
         a temporary upstream interface returns the error
         'wrongValue'.
         This object MUST contain a value of zero for physical
         interfaces entries.
         Setting this object in row entries that correspond to
         physical interfaces returns the error 'wrongValue'."
    ::= { docsIfUpstreamChannelEntry 16 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Used to perform the copy of adjusted parameters from the
         temporary interface entry to the physical interface
         indicated by the docsIfUpChannelCloneFrom object.  The
         transfer is initiated through an SNMP SET to 'true' of

         this object.
         A SET to 'true' fails and returns error 'commitFailed'
         if docsIfUpChannelStatus value is 'notInService', which
         means that the interface parameters values are not
         compatible with each other or have not been validated yet.
         Reading this object always returns 'false'."
    ::= { docsIfUpstreamChannelEntry 17 }

    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "This object is only used for the creation of a temporary
         upstream row with the purpose of updating the parameters
         of a physical upstream channel entry.

         The following restrictions apply to this object:
         1. This object is not writable for physical interfaces.
         2. Temporary interface entries are only created by a SET
            of this object to createandWait(5).
         3. ifAdminStatus from the Interface MIB RFC 2863 is used
            to take a physical upstream channel offline, to be
            consistent with DOCSIS 1.x operation, as indicated in
            RFC 2670.
            In addition,
             o ifAdminStatus 'down' is reflected in this object
               as 'notInService'.
             o ifOperStatus 'down' while ifAdminStatus 'up' is
               reflected in this object as 'notInservice'.
         4. Temporary created rows MUST be set to 'active' with
            the purpose of validating upstream parameter
            consistency prior to transferring the parameters to the
            physical interface.

         Below is a mandatory procedure for adjusting the values
         of a physical interface:
         1. Create a temporary interface entry through an SNMP SET
            using 'createAndWait'.  At this point, the RowStatus
            reports 'notReady'.
            The Manager entity uses an ifIndex value outside the
            operational range of the physical interfaces for the
            creation of a temporary interface.
         2. Set the docsIfUpChannelCloneFrom object to the ifIndex
            value of the physical row to update.  Now
            docsIfUpChannelStatus reports 'notInService'.
         3. Change the upstream parameters to the desired values
            in the temporary row.

         4. Validate that all parameters are consistent by setting
            docsIfUpChannelStatus to 'active'.  A failure to set the
            RowStatus to 'active' returns the error 'commitFailed',
            which means the parameters are not compatible with the
            target physical interface.
         5. With docsIfUpChannelStatus 'active', transfer the
            parameters to the target physical interface by setting
            the object docsIfUpChannelUpdate to 'true'.
         6. Delete the temporary row by setting
            docsIfUpChannelStatus to 'destroy'."
    ::= { docsIfUpstreamChannelEntry 18 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "At the CMTS, this object is used to enable or disable
         pre-equalization on the upstream channel represented by
         this table instance.  At the CM, this object is read-only
         and reflects the status of pre-equalization as represented
         in the RNG-RSP.  Pre-equalization is considered enabled at
         the CM if a RNG-RSP with pre-equalization data has been
         received at least once since the last mac
         reinitialization."
    DEFVAL {false}
    ::= { docsIfUpstreamChannelEntry 19 }

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

    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 (for Cable Modem Termination System), or
         based on information extracted from the TFTP option file
         (for Cable Modem).
         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
         RECOMMENDED."
    INDEX { docsIfQosProfIndex }
    ::= { docsIfQosProfileTable 1 }

        docsIfQosProfIndex                Integer32,
        docsIfQosProfPriority             Integer32,
        docsIfQosProfMaxUpBandwidth       Integer32,
        docsIfQosProfGuarUpBandwidth      Integer32,
        docsIfQosProfMaxDownBandwidth     Integer32,
        docsIfQosProfMaxTxBurst           Integer32,  -- deprecated
        docsIfQosProfBaselinePrivacy      TruthValue,
        docsIfQosProfStatus               RowStatus,
        docsIfQosProfMaxTransmitBurst     Integer32,
        docsIfQosProfStorageType          StorageType
    }

    SYNTAX      Integer32 (1..16383)

    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The index value that uniquely identifies an entry
         in the docsIfQosProfileTable."
    ::= { docsIfQosProfileEntry 1 }

    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."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Annex C.1.1.4."
    DEFVAL { 0 }
    ::= { docsIfQosProfileEntry 2 }

    SYNTAX      Integer32 (0..100000000)
    UNITS "bits per second"
    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."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Annex C.1.1.4."
    DEFVAL { 0 }
    ::= { docsIfQosProfileEntry 3 }

    SYNTAX      Integer32 (0..100000000)
    UNITS "bits per second"
    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."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Annex C.1.1.4."
    DEFVAL { 0 }
    ::= { docsIfQosProfileEntry 4 }

    SYNTAX      Integer32 (0..100000000)
    UNITS "bits per second"
    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."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Annex C.1.1.4."

    DEFVAL { 0 }
    ::= { docsIfQosProfileEntry 5 }

    SYNTAX      Integer32 (0..255)
    UNITS "mini-slots"
    MAX-ACCESS  read-create
    STATUS      deprecated
    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.
         This object has been deprecated and replaced by
         docsIfQosProfMaxTransmitBurst, to fix a mismatch
         of the units and value range with respect to the DOCSIS
         Maximum Upstream Channel Transmit Burst Configuration
         Setting."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         C.1.1.4."
    DEFVAL { 0 }
    ::= { docsIfQosProfileEntry 6 }

    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 }

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

    SYNTAX      Integer32 (0..65535)
    UNITS       "bytes"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The maximum number of bytes that may be requested for a
         single upstream transmission.  A value of zero means there
         is no limit.  Note: This value does not include any
         physical layer overhead.
         MUST NOT be changed while this row is active."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Annex C.1.1.4."
    DEFVAL { 0 }
    ::= { docsIfQosProfileEntry 9 }

    SYNTAX       StorageType
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "The storage type for this conceptual row.
         Entries with this object set to permanent(4)

         do not require write operations for writable
         objects."
    ::= { docsIfQosProfileEntry 10 }

    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, this object describes the PHY
         signal quality of upstream channels.  At the CMTS, this
         table MAY exclude contention intervals."
    ::= { docsIfBaseObjects 4 }

    SYNTAX      DocsIfSignalQualityEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "At the CM, this object describes the PHY characteristics of
         a downstream channel.  At the CMTS, it describes the PHY
         signal quality of an upstream channel.
         An entry in this table exists for each ifEntry with an
         ifType of docsCableDownstream(128) for Cable Modems.
         For DOCSIS 1.1 Cable Modem Termination Systems, an entry
         exists for each ifEntry with an ifType of
         docsCableUpstream (129).
         For DOCSIS 2.0 Cable Modem Termination Systems, an entry
         exists for each ifEntry with an ifType of
         docsCableUpstreamChannel (205)."
    INDEX { ifIndex }
    ::= { docsIfSignalQualityTable 1 }

        docsIfSigQIncludesContention  TruthValue,
        docsIfSigQUnerroreds          Counter32,
        docsIfSigQCorrecteds          Counter32,
        docsIfSigQUncorrectables      Counter32,
        docsIfSigQSignalNoise         TenthdB,
        docsIfSigQMicroreflections    Integer32,
        docsIfSigQEqualizationData    DocsEqualizerData,
        docsIfSigQExtUnerroreds       Counter64,
        docsIfSigQExtCorrecteds       Counter64,
        docsIfSigQExtUncorrectables   Counter64
    }

    SYNTAX      TruthValue
    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
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 9.4.1"
    ::= { docsIfSignalQualityEntry 1 }

    SYNTAX      Counter32
    UNITS       "codewords"
    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.
         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,
         Sections 6.2.4, and 6.3.6."
    ::= { docsIfSignalQualityEntry 2 }

    SYNTAX      Counter32
    UNITS       "codewords"
    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.
         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,
         Sections 6.2.4, and 6.3.6."

    ::= { docsIfSignalQualityEntry 3 }

    SYNTAX      Counter32
    UNITS       "codewords"
    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.
         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,
         Sections 6.2.4, and 6.3.6."
    ::= { docsIfSignalQualityEntry 4 }

    SYNTAX      TenthdB
    UNITS       "TenthdB"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Signal/Noise ratio as perceived for this channel.
         At the CM, this object  describes the Signal/Noise of the
         downstream channel.  At the CMTS, it describes the
         average Signal/Noise of the upstream channel."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 4-1 and 4-2"
    ::= { docsIfSignalQualityEntry 5 }

    SYNTAX      Integer32 (0..255)
    UNITS       "-dBc"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "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 it gives a rough indication

         of microreflections received on this interface.
         It is up to the implementer to provide information
         as accurately as possible."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 4-1 and 4-2"
    ::= { docsIfSignalQualityEntry 6 }

       SYNTAX      DocsEqualizerData
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "At the CM, this object returns the equalization data for
            the downstream channel.

            At the CMTS, this object is not applicable and is not
            instantiated.  Note that previous CMTS implementations
            may instantiate this object in two ways:
            - An equalization value indicating an equalization
              average for the upstream channel.  Those values have
              vendor-dependent interpretations.
            - Return a zero-length OCTET STRING to indicate that
              the value is unknown or if there is no equalization
              data available or defined."
       REFERENCE
           "DOCSIS Radio Frequency Interface Specification,
            Figure 6-23."
       ::= { docsIfSignalQualityEntry 7 }

    SYNTAX      Counter64
    UNITS       "codewords"
    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.
         This is the 64-bit version of docsIfSigQUnerroreds.
         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,
         Sections 6.2.4, and 6.3.6."
    ::= { docsIfSignalQualityEntry 8 }

    SYNTAX      Counter64
    UNITS       "codewords"
    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.
         This is the 64-bit version of docsIfSigQCorrecteds.
         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,
         Sections 6.2.4, and 6.3.6."
    ::= { docsIfSignalQualityEntry 9 }

    SYNTAX      Counter64
    UNITS       "codewords"
    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.
         This is the 64-bit version of docsIfSigQUncorrectables.
         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,
         Sections 6.2.4, 6.3.6."
    ::= { docsIfSignalQualityEntry 10 }

       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 }

    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 }

    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 }

        docsIfCmCmtsAddress           MacAddress,
        docsIfCmCapabilities          BITS,
        docsIfCmRangingRespTimeout    TimeTicks,
        docsIfCmRangingTimeout        TimeInterval
     }

    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 }

    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 }

    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 }

    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 }

    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 }

    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 }

        docsIfCmStatusValue               INTEGER,
        docsIfCmStatusCode                OCTET STRING,
        docsIfCmStatusTxPower             TenthdBmV,
        docsIfCmStatusResets              Counter32,
        docsIfCmStatusLostSyncs           Counter32,

        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
    }

    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:

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

    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 }

    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 }

    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

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

    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 }

    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 }

    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

         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 }

    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 }

    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 }

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

    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 }

    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 }

    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 }

    SYNTAX      Counter32

    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 }

    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 }

    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."

    ::= { docsIfCmStatusEntry 15 }

     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 }

    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 }

    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 }

    SYNTAX          Counter32
    UNITS           "attempts"

    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 }

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

    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 }

        docsIfCmServiceId               Integer32,
        docsIfCmServiceQosProfile       Integer32,
        docsIfCmServiceTxSlotsImmed     Counter32,
        docsIfCmServiceTxSlotsDed       Counter32,
        docsIfCmServiceTxRetries        Counter32,
        docsIfCmServiceTxExceededs      Counter32,
        docsIfCmServiceRqRetries        Counter32,
        docsIfCmServiceRqExceededs      Counter32,
        docsIfCmServiceExtTxSlotsImmed  Counter64,
        docsIfCmServiceExtTxSlotsDed    Counter64

     }

    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 }

    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 }

    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 }

    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 }

    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 }

    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

         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 }

    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 }

    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 }

    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 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 }

    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 }

    SYNTAX      SEQUENCE OF DocsIfCmtsMacEntry
    MAX-ACCESS  not-accessible
    STATUS      current

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

    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 }

        docsIfCmtsCapabilities            BITS,
        docsIfCmtsSyncInterval            Integer32,
        docsIfCmtsUcdInterval             Integer32,
        docsIfCmtsMaxServiceIds           Integer32,
        docsIfCmtsInsertionInterval       TimeTicks,   -- Obsolete
        docsIfCmtsInvitedRangingAttempts  Integer32,
        docsIfCmtsInsertInterval          TimeInterval,
        docsIfCmtsMacStorageType          StorageType
    }

    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 }

    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 }

    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 }

    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 }

    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

         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 }

    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 }

    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 }

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

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

    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 }

    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 }

        docsIfCmtsStatusInvalidRangeReqs        Counter32,
        docsIfCmtsStatusRangingAborteds         Counter32,
        docsIfCmtsStatusInvalidRegReqs          Counter32,
        docsIfCmtsStatusFailedRegReqs           Counter32,
        docsIfCmtsStatusInvalidDataReqs         Counter32,
        docsIfCmtsStatusT5Timeouts              Counter32
    }

    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

         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 }

    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 }

    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 }

    SYNTAX      Counter32

    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 }

    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 }

    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 }

    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 }

    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 }

        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,

        docsIfCmtsCmStatusValueLastUpdate     TimeStamp,
        docsIfCmtsCmStatusHighResolutionTimingOffset Unsigned32
    }

    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 }

    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 }

    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 }

    SYNTAX      InterfaceIndexOrZero
    MAX-ACCESS  read-only
    STATUS      current

    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 }

    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 }

    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 }

    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

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

    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 }

    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.

         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 }

    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 }

    SYNTAX      Counter32
    UNITS       "codewords"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Codewords received with correctable errors 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 11 }

    SYNTAX      Counter32
    UNITS       "codewords"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Codewords received with uncorrectable errors 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 12 }

    SYNTAX      TenthdB
    UNITS       "TenthdB"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Signal/Noise ratio as perceived for upstream data from
         this cable modem.
         If the Signal/Noise 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,
         Tables 4-1 and 4-2."
    ::= { docsIfCmtsCmStatusEntry 13 }

    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 it gives a rough indication
         of microreflections received on this interface.
         It is up to the implementer to provide information
         as accurately as possible.
         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,
         Tables 4-1 and 4-2"
    ::= { docsIfCmtsCmStatusEntry 14 }

    SYNTAX      Counter64
    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 6.2.5."
    ::= { docsIfCmtsCmStatusEntry 15 }

    SYNTAX      Counter64
    UNITS       "codewords"

    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Codewords received with correctable errors 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 6.2.5."
    ::= { docsIfCmtsCmStatusEntry 16 }

    SYNTAX      Counter64
    UNITS       "codewords"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Codewords received with uncorrectable errors 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 6.2.5."
    ::= { docsIfCmtsCmStatusEntry 17 }

       SYNTAX      DocsisQosVersion
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Indication of whether the CM has registered using 1.0
            Class of Service or 1.1 Quality of Service."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Annex G."
    ::= { docsIfCmtsCmStatusEntry 18 }

     SYNTAX      DocsisUpstreamType

     MAX-ACCESS  read-only
     STATUS      current
     DESCRIPTION
         "Indicates modulation type currently used by the CM.  Since
          this object specifically identifies PHY mode, the shared
          type is not permitted.  If the upstream channel 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,
         Table 8-19."
     ::= { docsIfCmtsCmStatusEntry 19 }

       SYNTAX      InetAddressType
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The type of internet address of
            docsIfCmtsCmStatusInetAddress.  If the cable modem
            internet address is unassigned or unknown, then the
            value of this object is unknown(0)."
       ::= { docsIfCmtsCmStatusEntry 20 }

       SYNTAX      InetAddress
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "Internet address of this cable modem.  If the Cable
            Modem has no Internet address assigned, or the Internet
            address is unknown, the value of this object is the
            zero-length OCTET STRING.  If the cable modem has
            multiple Internet addresses, this object returns the
            Internet address associated with the Cable
            (i.e., RF MAC) interface."
       ::= { docsIfCmtsCmStatusEntry 21 }

       SYNTAX      TimeStamp
       MAX-ACCESS  read-only
       STATUS      current
       DESCRIPTION
           "The value of sysUpTime when docsIfCmtsCmStatusValue
            was last updated."
       ::= { docsIfCmtsCmStatusEntry 22 }

    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*256)).  Returns zero if the value
         is unknown.
         This is the high resolution version of object
         docsIfCmtsCmStatusTimingOffset, for channels requiring
         finer resolution."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Section 6.2.17."
    ::= { docsIfCmtsCmStatusEntry 23 }

    SYNTAX      SEQUENCE OF DocsIfCmtsServiceEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Describes the attributes of upstream service queues
         in a Cable Modem Termination System."
    ::= { docsIfCmtsObjects 4 }

    SYNTAX      DocsIfCmtsServiceEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Describes the attributes of a single upstream bandwidth
         service queue.
         Entries in this table exist for each ifEntry with an
         ifType of docsCableMaclayer(127), and for each service
         queue (Service ID) within this MAC layer.
         Entries in this table are created with the creation of
         individual Service IDs by the MAC layer and removed
         when a Service ID is removed."
    INDEX { ifIndex, docsIfCmtsServiceId }
    ::= { docsIfCmtsServiceTable 1 }

        docsIfCmtsServiceId               Integer32,
        docsIfCmtsServiceCmStatusIndex    Integer32,  -- deprecated
        docsIfCmtsServiceAdminStatus      INTEGER,
        docsIfCmtsServiceQosProfile       Integer32,
        docsIfCmtsServiceCreateTime       TimeStamp,
        docsIfCmtsServiceInOctets         Counter32,
        docsIfCmtsServiceInPackets        Counter32,
        docsIfCmtsServiceNewCmStatusIndex Integer32
    }

    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
         Cable Modem and the Cable Modem Termination System.
         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."
    ::= { docsIfCmtsServiceEntry 1 }

    SYNTAX      Integer32 (0..65535)
    MAX-ACCESS  read-only
    STATUS      deprecated
    DESCRIPTION
        "Pointer to an entry in docsIfCmtsCmStatusTable identifying
         the cable modem using this Service Queue.  If multiple
         cable modems are using this Service Queue, the value of
         this object is zero.
         This object has been deprecated and replaced by
         docsIfCmtsServiceNewCmStatusIndex, to fix a mismatch
         of the value range with respect to docsIfCmtsCmStatusIndex
         (1..2147483647)."
    ::= { docsIfCmtsServiceEntry 2 }

    SYNTAX      INTEGER {
        enabled(1),
        disabled(2),
        destroyed(3) }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "Allows a service class for a particular modem to be
         suppressed, (re-)enabled, or deleted altogether."

    ::= { docsIfCmtsServiceEntry 3 }

    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 docsIfQosProfileTable entry
         exists, this object returns a value of zero."
    ::= { docsIfCmtsServiceEntry 4 }

    SYNTAX      TimeStamp
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The value of sysUpTime when this entry was created."
    ::= { docsIfCmtsServiceEntry 5 }

    SYNTAX      Counter32
    UNITS       "Bytes"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The cumulative number of Packet Data octets received
         on this Service ID.  The count does not include the
         size of the Cable MAC header.
         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."
    ::= { docsIfCmtsServiceEntry 6 }

    SYNTAX      Counter32
    UNITS       "packets"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The cumulative number of Packet Data packets received
         on this Service ID.
         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."

    ::= { docsIfCmtsServiceEntry 7 }

    SYNTAX      Integer32 (0..2147483647)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Pointer (via docsIfCmtsCmStatusIndex) to an entry in
         docsIfCmtsCmStatusTable identifying the cable modem
         using this Service Queue.  If multiple cable modems are
         using this Service Queue, the value of this object is
         zero."
    ::= { docsIfCmtsServiceEntry 8 }

    SYNTAX      SEQUENCE OF DocsIfCmtsModulationEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Describes a modulation profile associated with one or more
         upstream channels."
    ::= { docsIfCmtsObjects 5 }

    SYNTAX      DocsIfCmtsModulationEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Describes a modulation profile for an Interval Usage Code
         for one or more upstream channels.
         Entries in this table are created by the operator.

         Initial default entries MAY be created at system
         initialization time, which could report a value of
         'permanent' or 'readOnly' for docsIfCmtsModStorageType.
         A CMTS MAY reject the creation of additional Interval
         Usage Codes for a modulation profile being defined at
         Initialization time.
         No individual objects have to be specified in order
         to create an entry in this table.

         Note that some objects do not have DEFVAL clauses
         but do have calculated defaults and need not be specified
         during row creation."
     INDEX { docsIfCmtsModIndex, docsIfCmtsModIntervalUsageCode}
    ::= { docsIfCmtsModulationTable 1 }

        docsIfCmtsModIndex                    Integer32,
        docsIfCmtsModIntervalUsageCode        INTEGER,
        docsIfCmtsModControl                  RowStatus,
        docsIfCmtsModType                     INTEGER,
        docsIfCmtsModPreambleLen              Integer32,
        docsIfCmtsModDifferentialEncoding     TruthValue,
        docsIfCmtsModFECErrorCorrection       Integer32,
        docsIfCmtsModFECCodewordLength        Integer32,
        docsIfCmtsModScramblerSeed            Integer32,
        docsIfCmtsModMaxBurstSize             Integer32,
        docsIfCmtsModGuardTimeSize            Unsigned32,
        docsIfCmtsModLastCodewordShortened    TruthValue,
        docsIfCmtsModScrambler                TruthValue,
        docsIfCmtsModByteInterleaverDepth     Unsigned32,
        docsIfCmtsModByteInterleaverBlockSize Unsigned32,
        docsIfCmtsModPreambleType             INTEGER,
        docsIfCmtsModTcmErrorCorrectionOn     TruthValue,
        docsIfCmtsModScdmaInterleaverStepSize Unsigned32,
        docsIfCmtsModScdmaSpreaderEnable      TruthValue,
        docsIfCmtsModScdmaSubframeCodes       Unsigned32,
        docsIfCmtsModChannelType              DocsisUpstreamType,
        docsIfCmtsModStorageType              StorageType
    }

    SYNTAX       Integer32 (1..2147483647)
    MAX-ACCESS   not-accessible
    STATUS      current
    DESCRIPTION
         "An index into the Channel Modulation table representing
          a group of Interval Usage Codes, all associated with the
          same channel."
    ::= { docsIfCmtsModulationEntry 1 }

    SYNTAX       INTEGER {
        request(1),
        requestData(2),
        initialRanging(3),
        periodicRanging(4),
        shortData(5),

        longData(6),
        advPhyShortData(9),
        advPhyLongData(10),
        ugs(11)
    }
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "An index into the Channel Modulation table that, when
         grouped with other Interval Usage Codes, fully
         instantiates all modulation sets for a given upstream
         channel."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 8-20."
    ::= { docsIfCmtsModulationEntry 2 }

    SYNTAX      RowStatus
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Controls and reflects the status of rows in this table.
         There is no restriction on the changing of values in this
         table while their associated rows are active, with the
         exception of:

         1. If a modulation profile is being referenced by one
            or more upstream channels, an attempt to set the value
            of docsIfCmtsModChannelType returns an
            'inconsistentValue' error.

         2. If a modulation profile is being referenced by one
            or more upstream channels, an attempt to set
            docsIfCmtsModControl to destroy(6) or notInService(2)
            returns an 'inconsistentValue' error."
    ::= { docsIfCmtsModulationEntry 3 }

    SYNTAX      INTEGER {
        other(1),
        qpsk(2),
        qam16(3),
        qam8(4),
        qam32(5),
        qam64(6),
        qam128(7)

    }
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The modulation type used on this channel.  Returns
         other(1) if the modulation type is not
         qpsk, qam16, qam8, qam32, qam64, or qam128.
         Type qam128 is used for SCDMA channels only.
         See the reference for the modulation profiles
         implied by different modulation types."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { qpsk }
    ::= { docsIfCmtsModulationEntry 4 }

    SYNTAX      Integer32 (0..1536)
    UNITS       "bits"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The preamble length for this modulation profile in bits.
         Default value is the minimum needed by the implementation
         at the CMTS for the given modulation profile."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    ::= { docsIfCmtsModulationEntry 5 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Specifies whether or not differential encoding is used
         on this channel."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { false }
    ::= { docsIfCmtsModulationEntry 6 }

    SYNTAX      Integer32 (0..16)

    UNITS       "Bytes"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The number of correctable errored bytes (t) used in
         forward error correction code.  The value of 0 indicates
         that no correction is employed.  The number of check bytes
         appended will be twice this value."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { 0 }
    ::= { docsIfCmtsModulationEntry 7 }

    SYNTAX      Integer32 (1..255)
    UNITS       "Bytes"
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The number of data bytes (k) in the forward error
         correction codeword.
         This object is not used if docsIfCmtsModFECErrorCorrection
         is zero."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { 32 }
    ::= { docsIfCmtsModulationEntry 8 }

    SYNTAX      Integer32 (0..32767)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The 15-bit seed value for the scrambler polynomial."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 8-19."
    DEFVAL { 0 }
    ::= { docsIfCmtsModulationEntry 9 }

    SYNTAX      Integer32 (0..255)
    UNITS       "mini-slots"

    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "The maximum number of mini-slots that can be transmitted
         during this channel's burst time.  Returns zero if the
         burst length is bounded by the allocation MAP rather than
         by this profile.
         Default value is 0, except for shortData, where it is 8."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 8-19."
    ::= { docsIfCmtsModulationEntry 10 }

    SYNTAX      Unsigned32
    UNITS       "Symbol-times"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The number of symbol-times that MUST follow the end of
         this channel's burst.  Default value is the minimum time
         needed by the implementation for this modulation profile."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    ::= { docsIfCmtsModulationEntry 11 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Indicates whether the last FEC codeword is truncated."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { true }
    ::= { docsIfCmtsModulationEntry 12 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Indicates whether the scrambler is employed."

    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { false }
    ::= { docsIfCmtsModulationEntry 13 }

    SYNTAX      Unsigned32
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "ATDMA Byte Interleaver Depth (Ir).  This object returns 1
         for non-ATDMA profiles."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { 1 }
    ::= { docsIfCmtsModulationEntry 14 }

    SYNTAX      Unsigned32
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "ATDMA Byte Interleaver Block size (Br).  This object
         returns zero for non-ATDMA profiles "
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { 18 }
    ::= { docsIfCmtsModulationEntry 15 }

    SYNTAX       INTEGER {
        unknown(0),
        qpsk0(1),
        qpsk1(2)
    }
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Preamble type for DOCSIS 2.0 bursts.  The value
         'unknown(0)' represents a row entry consisting only of
         DOCSIS 1.x bursts"
    REFERENCE

        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { qpsk0 }
    ::= { docsIfCmtsModulationEntry 16 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Trellis Code Modulation (TCM) On/Off.  This value returns
         false for non-S-CDMA profiles."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { false }
    ::= { docsIfCmtsModulationEntry 17 }

    SYNTAX      Unsigned32 (0 | 1..32)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        " S-CDMA Interleaver step size.  This value returns zero
          for non-S-CDMA profiles."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    DEFVAL { 1 }
    ::= { docsIfCmtsModulationEntry 18 }

    SYNTAX      TruthValue
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        " S-CDMA spreader.  This value returns false for non-S-CDMA
          profiles.  Default value for IUC 3 and 4 is OFF; for
          all other IUCs it is ON."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Tables 6-7, and 8-19."
    ::= { docsIfCmtsModulationEntry 19 }

    SYNTAX      Unsigned32 (0 | 1..128)
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        " S-CDMA sub-frame size.  This value returns zero
          for non-S-CDMA profiles."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 6-7, and 8-19."
    DEFVAL { 1 }
    ::= { docsIfCmtsModulationEntry 20 }

    SYNTAX      DocsisUpstreamType
    MAX-ACCESS  read-create
    STATUS      current
    DESCRIPTION
        "Describes the modulation channel type for this modulation
         entry.
         All the active entries in a modulation profile (that is all
         active entries that share a common docsIfCmtsModIndex)
         MUST have the same value of docsIfCmtsModChannelType."
    REFERENCE
        "Data-Over-Cable Service Interface Specifications: Radio
         Frequency Interface Specification SP-RFIv2.0-I10-051209,
         Table 8-19."
    DEFVAL { tdma }
    ::= { docsIfCmtsModulationEntry 21 }

    SYNTAX       StorageType
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "The storage type for this conceptual row.
         Entries with this object set to permanent(4)
         do not require write operations for read-write
         objects."
    DEFVAL      { nonVolatile }
::= { docsIfCmtsModulationEntry 22 }

    SYNTAX      BITS {
        createByManagement(0),
        updateByManagement(1),
        createByModems(2)

    }
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "This object specifies permitted methods of creating
         entries in docsIfQosProfileTable.
         createByManagement(0) is set if entries can be created
         using SNMP.  updateByManagement(1) is set if updating
         entries using SNMP is permitted.  createByModems(2)
         is set if entries can be created based on information
         in REG-REQ MAC messages received from cable modems.
         Information in this object is only applicable if
         docsIfQosProfileTable is implemented as read-create.
         Otherwise, this object is implemented as read-only
         and returns createByModems(2).
         Either createByManagement(0) or updateByManagement(1)
         MUST be set when writing to this object.
         Note that BITS objects are encoded most significant bit
         first.  For example, if bit 2 is set, the value of this
         object is the octet string '20'H."
    ::= { docsIfCmtsObjects 6 }

    SYNTAX      SEQUENCE OF DocsIfCmtsMacToCmEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "This is a table to provide a quick access index into the
         docsIfCmtsCmStatusTable.  There is exactly one row in this
         table for each row in the docsIfCmtsCmStatusTable.  In
         general, the management station SHOULD use this table only
         to get a pointer into the docsIfCmtsCmStatusTable (which
         corresponds to the CM's RF interface MAC address) and
         SHOULD not iterate (e.g., GetNext through) this table."
    ::= { docsIfCmtsObjects 7 }

    SYNTAX      DocsIfCmtsMacToCmEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "A row in the docsIfCmtsMacToCmTable.
         An entry in this table exists for each cable modem
         that is connected to the CMTS implementing this table."
    INDEX   { docsIfCmtsCmMac }
    ::= {docsIfCmtsMacToCmTable 1 }

            docsIfCmtsCmMac     MacAddress,
            docsIfCmtsCmPtr     Integer32
    }

    SYNTAX      MacAddress
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "The RF side MAC address for the referenced CM (e.g., the
         interface on the CM that has docsCableMacLayer(127) as
         its ifType)."
    ::= { docsIfCmtsMacToCmEntry 1 }

    SYNTAX      Integer32 (1..2147483647)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "An row index into docsIfCmtsCmStatusTable.  When queried
         with the correct instance value (e.g., a CM's MAC address),
         returns the index in docsIfCmtsCmStatusTable that
         represents that CM."
    ::= { docsIfCmtsMacToCmEntry 2 }

    SYNTAX      Integer32 (0..86400)
    UNITS       "seconds"
    MAX-ACCESS  read-write
    STATUS      current
    DESCRIPTION
        "The time interval in seconds over which the channel
         utilization index is calculated.  All upstream/downstream
         channels use the same
         docsIfCmtsChannelUtilizationInterval.

         Setting a value of zero disables utilization reporting.
         A channel utilization index is calculated over a fixed
         window applying to the most recent
         docsIfCmtsChannelUtilizationInterval.  It would therefore
         be prudent to use a relatively short
         docsIfCmtsChannelUtilizationInterval.
         It is a vendor decision whether to reset the timer when
         docsIfCmtsChannelUtilizationInterval is changed during a
         utilization sampling period."
    ::= { docsIfCmtsObjects 8 }

    SYNTAX      SEQUENCE OF DocsIfCmtsChannelUtilizationEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Reports utilization statistics for attached upstream and
         downstream physical channels."
    ::= { docsIfCmtsObjects 9 }

    SYNTAX      DocsIfCmtsChannelUtilizationEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "Utilization statistics for a single upstream or downstream
         physical channel.  An entry exists in this table for each
         ifEntry with an ifType equal to
         docsCableDownstream (128)
         or docsCableUpstream (129)."
    INDEX  { ifIndex, docsIfCmtsChannelUtIfType,
         docsIfCmtsChannelUtId }
    ::= { docsIfCmtsChannelUtilizationTable 1 }

        docsIfCmtsChannelUtIfType         IANAifType,
        docsIfCmtsChannelUtId             Integer32,
        docsIfCmtsChannelUtUtilization    Integer32
    }

    SYNTAX       IANAifType
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION
        "The secondary index into this table.  Indicates the IANA
         interface type associated with this physical channel.
         Only docsCableDownstream (128) and

         docsCableUpstream (129) are valid."
    ::= { docsIfCmtsChannelUtilizationEntry 1 }

    SYNTAX       Integer32 (0..255)
    MAX-ACCESS   not-accessible
    STATUS       current
    DESCRIPTION
         "The tertiary index into this table.  Indicates the CMTS
          identifier for this physical channel."
    ::= { docsIfCmtsChannelUtilizationEntry 2 }

    SYNTAX       Integer32 (0..100)
    UNITS        "percent"
    MAX-ACCESS   read-only
    STATUS       current
    DESCRIPTION
        "The calculated and truncated utilization index for this
         physical upstream or downstream channel, accurate as of
         the most recent docsIfCmtsChannelUtilizationInterval.

         Upstream Channel Utilization Index:

         The upstream channel utilization index is expressed as a
         percentage of mini-slots utilized on the physical channel,
         regardless of burst type.  For an Initial Maintenance
         region, the mini-slots for the complete region are
         considered utilized if the CMTS received an upstream
         burst within the region from any CM on the physical
         channel.  For contention REQ and REQ/DATA regions, the
         mini-slots for a transmission opportunity within the
         region are considered utilized if the CMTS received an
         upstream burst within the opportunity from any CM on the
         physical channel.  For all other regions, utilized
         mini-slots are those in which the CMTS granted
         bandwidth to any unicast SID on the physical channel.

         For an upstream interface that has multiple logical
         upstream channels enabled, the utilization index is a
         weighted sum of utilization indices for the logical
         channels.  The weight for each utilization index is the
         percentage of upstream mini-slots allocated for the
         corresponding logical channel.
         Example:
         If 75% of bandwidth is allocated to the first logical
         channel and 25% to the second, and the utilization
         indices for each are 60 and 40, respectively, the

         utilization index for the upstream physical channel is
         (60 * 0.75) + (40 * 0.25) = 55.  This figure
         applies to the most recent utilization interval.

         Downstream Channel Utilization Index:

         The downstream channel utilization index is a percentage
         expressing the ratio between bytes used to transmit data
         versus the total number of bytes transmitted in the raw
         bandwidth of the MPEG channel.  As with the upstream
         utilization index, the calculated value represents
         the most recent utilization interval.
         Formula:
         Downstream utilization index =
         (100 * (data bytes / raw bytes))

         Definitions:
         Data bytes:    Number of bytes transmitted as data in the
                        docsIfCmtsChannelUtilizationInterval.
                        Identical to docsIfCmtsDownChannelCtrUsed
                        Bytes measured over the utilization
                        interval.
         Raw bandwidth: Total number of bytes available for
                        transmitting data, not including bytes
                        used for headers and other overhead.
         Raw bytes:     (raw bandwidth *
                        docsIfCmtsChannelUtilizationInterval).
                        Identical to docsIfCmtsDownChannelCtrTotal
                        Bytes measured over the utilization
                        interval."
    ::= { docsIfCmtsChannelUtilizationEntry 3 }

    SYNTAX      SEQUENCE OF DocsIfCmtsDownChannelCounterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "This table is implemented at the CMTS to collect
         downstream channel statistics for utilization

         calculations."
    ::= { docsIfCmtsObjects 10 }

    SYNTAX      DocsIfCmtsDownChannelCounterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "An entry provides a list of traffic counters for a single
         downstream channel.
         An entry in this table exists for each ifEntry with an
         ifType of docsCableDownstream(128)."
    INDEX { ifIndex }
    ::= { docsIfCmtsDownChannelCounterTable 1 }

        docsIfCmtsDownChnlCtrId              Integer32,
        docsIfCmtsDownChnlCtrTotalBytes      Counter32,
        docsIfCmtsDownChnlCtrUsedBytes       Counter32,
        docsIfCmtsDownChnlCtrExtTotalBytes   Counter64,
        docsIfCmtsDownChnlCtrExtUsedBytes    Counter64
    }

    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The Cable Modem Termination System identification
         of the downstream channel within this particular MAC
         interface.  If the interface is down, the object returns
         the most current value.  If the downstream channel ID is
         unknown, this object returns a value of 0."
    ::= { docsIfCmtsDownChannelCounterEntry 1 }

    SYNTAX      Counter32
    UNITS       "Bytes"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "At the CMTS, the total number of bytes in the Payload
         portion of MPEG Packets (i.e., not including MPEG header
         or pointer_field) transported by this downstream channel.
         This is the 32-bit version of
         docsIfCmtsDownChnlCtrExtTotalBytes, included to provide
         back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsDownChannelCounterEntry 2 }

    SYNTAX      Counter32
    UNITS       "Bytes"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "At the CMTS, the total number of DOCSIS data bytes
         transported by this downstream channel.
         The number of data bytes is defined as the total number
         of bytes transported in DOCSIS payloads minus the number
         of stuff bytes transported in DOCSIS payloads.
         This is the 32-bit version of
         docsIfCmtsDownChnlCtrExtUsedBytes, included to provide
         back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsDownChannelCounterEntry 3 }

    SYNTAX      Counter64
    UNITS       "Bytes"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "At the CMTS, the total number of bytes in the Payload
         portion of MPEG Packets (i.e., not including MPEG header
         or pointer_field) transported by this downstream
         channel.
         This is the 64-bit version of
         docsIfCmtsDownChnlCtrTotalBytes and will not be
         accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsDownChannelCounterEntry 4 }

    SYNTAX      Counter64
    UNITS       "Bytes"
    MAX-ACCESS  read-only

    STATUS      current
    DESCRIPTION
        "At the CMTS, the total number of DOCSIS data bytes
         transported by this downstream channel.  The number
         of data bytes is defined as the total number of bytes
         transported in DOCSIS payloads minus the number of
         stuff bytes transported in DOCSIS payloads.
         This is the 64-bit version of
         docsIfCmtsDownChnlCtrUsedBytes and will not be accessible
         to SNMPv1 managers.
         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."
    ::= { docsIfCmtsDownChannelCounterEntry 5 }

    SYNTAX      SEQUENCE OF DocsIfCmtsUpChannelCounterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "This table is implemented at the CMTS to provide upstream
         channel statistics appropriate for channel utilization
         calculations."
    ::= { docsIfCmtsObjects 11 }

    SYNTAX      DocsIfCmtsUpChannelCounterEntry
    MAX-ACCESS  not-accessible
    STATUS      current
    DESCRIPTION
        "List of traffic statistics for a single upstream channel.
         For DOCSIS 2.0 CMTSs, an entry in this table
         exists for each ifEntry with an ifType of
         docsCableUpstreamChannel (205).

         For DOCSIS 1.x CMTSs, an entry in this table
         exists for each ifEntry with an ifType of
         docsCableUpstream (129)."
    INDEX { ifIndex }
    ::= { docsIfCmtsUpChannelCounterTable 1 }

        docsIfCmtsUpChnlCtrId                          Integer32,
        docsIfCmtsUpChnlCtrTotalMslots                 Counter32,
        docsIfCmtsUpChnlCtrUcastGrantedMslots          Counter32,
        docsIfCmtsUpChnlCtrTotalCntnMslots             Counter32,
        docsIfCmtsUpChnlCtrUsedCntnMslots              Counter32,
        docsIfCmtsUpChnlCtrExtTotalMslots              Counter64,
        docsIfCmtsUpChnlCtrExtUcastGrantedMslots       Counter64,
        docsIfCmtsUpChnlCtrExtTotalCntnMslots          Counter64,
        docsIfCmtsUpChnlCtrExtUsedCntnMslots           Counter64,
        docsIfCmtsUpChnlCtrCollCntnMslots              Counter32,
        docsIfCmtsUpChnlCtrTotalCntnReqMslots          Counter32,
        docsIfCmtsUpChnlCtrUsedCntnReqMslots           Counter32,
        docsIfCmtsUpChnlCtrCollCntnReqMslots           Counter32,
        docsIfCmtsUpChnlCtrTotalCntnReqDataMslots      Counter32,
        docsIfCmtsUpChnlCtrUsedCntnReqDataMslots       Counter32,
        docsIfCmtsUpChnlCtrCollCntnReqDataMslots       Counter32,
        docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots    Counter32,
        docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots     Counter32,
        docsIfCmtsUpChnlCtrCollCntnInitMaintMslots     Counter32,
        docsIfCmtsUpChnlCtrExtCollCntnMslots           Counter64,
        docsIfCmtsUpChnlCtrExtTotalCntnReqMslots       Counter64,
        docsIfCmtsUpChnlCtrExtUsedCntnReqMslots        Counter64,
        docsIfCmtsUpChnlCtrExtCollCntnReqMslots        Counter64,
        docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots   Counter64,
        docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots    Counter64,
        docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots    Counter64,
        docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots Counter64,
        docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots  Counter64,
        docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots  Counter64
    }

    SYNTAX      Integer32 (0..255)
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "The CMTS identification of the upstream channel."
    ::= { docsIfCmtsUpChannelCounterEntry 1 }

    SYNTAX      Counter32

    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of all mini-slots
         defined for this upstream logical channel.  This count
         includes all IUCs and SIDs, even those allocated to the
         NULL SID for a 2.0 logical channel that is inactive.  This
         is the 32-bit version of docsIfCmtsUpChnlCtrExtTotalMslots
         and is included for back compatibility with SNMPv1
         managers.  Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 2 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of unicast
         granted mini-slots on the upstream logical channel,
         regardless of burst type.  Unicast granted mini-slots are
         those in which the CMTS assigned bandwidth to any unicast
         SID on the logical channel.  However, this object does not
         include minis-lots for reserved IUCs, or grants to SIDs
         designated as meaning 'no CM'.  This is the 32-bit version
         of docsIfCmtsUpChnlCtrExtUcastGrantedMslots, and is
         included for back compatibility with SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 3 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         mini-slots defined for this upstream logical channel.  This
         count includes all mini-slots assigned to a broadcast or

         multicast SID on the logical channel.  This is the 32-bit
         version of docsIfCmtsUpChnlCtrExtTotalCntnMslots, and is
         included for back compatibility with SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 4 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         mini-slots utilized on the upstream logical channel.  For
         contention regions, utilized mini-slots are those in which
         the CMTS correctly received an upstream burst from any CM
         on the upstream logical channel.  This is the 32-bit
         version of docsIfCmtsUpChnlCtrExtUsedCntnMslots and is
         included for back compatibility with SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 5 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of all mini-slots
         defined for this upstream logical channel.  This count
         includes all IUCs and SIDs, even those allocated to the
         NULL SID for a 2.0 logical channel that is inactive.  This
         is the 64-bit version of docsIfCmtsUpChnlCtrTotalMslots
         and will not be accessible to SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 6 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of unicast
         granted mini-slots on the upstream logical channel,
         regardless of burst type.  Unicast granted mini-slots are
         those in which the CMTS assigned bandwidth to any unicast
         SID on the logical channel.  However, this object does not
         include mini-slots for reserved IUCs, or grants to SIDs
         designated as meaning 'no CM'.  This is the 64-bit version
         of docsIfCmtsUpChnlCtrUcastGrantedMslots and will not be
         accessible to SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 7 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         mini-slots defined for this upstream logical channel.  This
         count includes all mini-slots assigned to a broadcast or
         multicast SID on the logical channel.  This is the 64-bit
         version of docsIfCmtsUpChnlCtrTotalCntnMslots and will
         not be accessible to SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 8 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention

         mini-slots utilized on the upstream logical channel.  For
         contention regions, utilized mini-slots are those in which
         the CMTS correctly received an upstream burst from any CM
         on the upstream logical channel.  This is the 64-bit
         version of docsIfCmtsUpChnlCtrUsedCntnMslots and will not
         be accessible to SNMPv1 managers.
         Support for this object is mandatory.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 9 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         mini-slots subjected to collisions on the upstream logical
         channel.  For contention regions, these are the mini-slots
         applicable to bursts that the CMTS detected but could not
         correctly receive.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtCollCntnMslots and is included for
         back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 10 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request mini-slots defined for this upstream logical
         channel.  This count includes all mini-slots for IUC1
         assigned to a broadcast or multicast SID on the logical
         channel.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtTotalCntnReqMslots and is included
         for back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 11 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request mini-slots utilized on this upstream logical
         channel.  This count includes all contention mini-slots for
         IUC1 applicable to bursts that the CMTS correctly
         received.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtUsedCntnReqMslots and is included
         for back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 12 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request mini-slots subjected to collisions on this upstream
         logical channel.  This includes all contention mini-slots
         for IUC1 applicable to bursts that the CMTS detected but
         could not correctly receive.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtCollCntnReqMslots and is included
         for back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 13 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention

         request data mini-slots defined for this upstream logical
         channel.  This count includes all mini-slots for IUC2
         assigned to a broadcast or multicast SID on the logical
         channel.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots and is
         included for back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 14 }

    SYNTAX      Counter32
    UNITS       "mini-slots"

    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request data mini-slots utilized on this upstream logical
         channel.  This includes all contention mini-slots for IUC2
         applicable to bursts that the CMTS correctly received.
         This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots and is
         included for back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 15 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request data mini-slots subjected to collisions on this
         upstream logical channel.  This includes all contention
         mini-slots for IUC2 applicable to bursts that the CMTS
         detected, but could not correctly receive.  This is the
         32-bit version of
         docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots and is
         included for back compatibility with SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 16 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         initial maintenance mini-slots defined for this upstream
         logical channel.  This includes all mini-slots for IUC3
         assigned to a broadcast or multicast SID on the logical
         channel.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots
         and is included for back compatibility with SNMPv1
         managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 17 }

    SYNTAX      Counter32
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         initial maintenance mini-slots utilized on this upstream
         logical channel.  This includes all contention mini-slots
         for IUC3 applicable to bursts that the CMTS correctly
         received.  This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots
         and is included for back compatibility with SNMPv1
         managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 18 }

    SYNTAX      Counter32
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION

        "Current count, from CMTS initialization, of contention
         initial maintenance mini-slots subjected to collisions on
         this upstream logical channel.  This includes all
         contention mini-slots for IUC3 applicable to bursts that
         the CMTS detected, but could not correctly receive.
         This is the 32-bit version of
         docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots
         and is included for back compatibility with SNMPv1
         managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 19 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of collision
         contention mini-slots on the upstream logical channel.
         For contention regions, these are the mini-slots applicable
         to bursts that the CMTS detected, but could not correctly
         receive.  This is the 64-bit version of
         docsIfCmtsUpChnlCtrCollCntnMslots and will not be
         accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 20 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request mini-slots defined for this upstream logical
         channel.  This count includes all mini-slots for IUC1
         assigned to a broadcast or multicast SID on the logical
         channel.  This is the 64-bit version of
         docsIfCmtsUpChnlCtrTotalCntnReqMslots and will not be
         accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 21 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request mini-slots utilized on this upstream logical
         channel.  This count includes all contention mini-slots for
         IUC1 applicable to bursts that the CMTS correctly
         received.  This is the 64-bit version of
         docsIfCmtsUpChnlCtrUsedCntnReqMslots and will not be
         accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 22 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request mini-slots subjected to collisions on this upstream
         logical channel.  This includes all contention mini-slots
         for IUC1 applicable to bursts that the CMTS detected,
         but could not correctly receive.  This is the 64-bit
         version of docsIfCmtsUpChnlCtrCollCntnReqMslots and will
         not be accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 23 }

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

    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request data mini-slots defined for this upstream logical
         channel.  This count includes all mini-slots for IUC2
         assigned to a broadcast or multicast SID on the logical
         channel.  This is the 64-bit version of
         docsIfCmtsUpChnlCtrTotalCntnReqDataMslots and will not be
         accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 24 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request data mini-slots utilized on this upstream logical
         channel.  This includes all contention mini-slots for IUC2
         applicable to bursts that the CMTS correctly received.
         This is the 64-bit version of
         docsIfCmtsUpChnlCtrUsedCntnReqDataMslots and will not be
         accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 25 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         request data mini-slots subjected to collisions on this
         upstream logical channel.  This includes all contention
         mini-slots for IUC2 applicable to bursts that the CMTS
         detected, but could not correctly receive.  This is the
         64-bit version of
         docsIfCmtsUpChnlCtrCollCntnReqDataMslots
         and will not be accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 26 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of initial
         maintenance mini-slots defined for this upstream logical
         channel.  This count includes all mini-slots for IUC3
         assigned to a broadcast or multicast SID on the logical
         channel.  This is the 64-bit version of
         docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots
         and will not be accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 27 }

    SYNTAX      Counter64
    UNITS       "mini-slots"
    MAX-ACCESS  read-only
    STATUS      current
    DESCRIPTION
        "Current count, from CMTS initialization, of initial
         maintenance mini-slots utilized on this upstream logical
         channel.  This includes all contention mini-slots for IUC3
         applicable to bursts that the CMTS correctly received.
         This is the 64-bit version of
         docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots
         and will not be accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 28 }

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

    DESCRIPTION
        "Current count, from CMTS initialization, of contention
         initial maintenance mini-slots subjected to collisions on
         this upstream logical channel.  This includes all
         contention mini-slots for IUC3 applicable to bursts that
         the CMTS detected, but could not correctly receive.
         This is the 64-bit version of
         docsIfCmtsUpChnlCtrCollCntnInitMaintMslots and will not
         be accessible to SNMPv1 managers.
         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."
    ::= { docsIfCmtsUpChannelCounterEntry 29 }

    STATUS      deprecated
    DESCRIPTION
        "The compliance statement for devices that implement
         DOCSIS 1.x compliant Radio Frequency Interfaces."

    docsIfBasicGroup
    }

    DESCRIPTION
        "This group is implemented only in cable modems, not in
         cable modem termination systems."

    DESCRIPTION
        "This group is implemented only in cable modem termination
         systems, not in cable modems."

    WRITE-SYNTAX Integer32 (54000000..860000000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems.  The values above are
         appropriate for a cable plant using a Sub-Split channel
         plan.  If DOCSIS is extended to cover other types of
         channel plans (and frequency allocations), this object
         will be modified accordingly."

    WRITE-SYNTAX Integer32 (6000000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "It is important to implement this object as read-only.
         In cable modems, this object is always implemented as
         read-only.  The above value is appropriate for cable
         plants running under NTSC (National Television
         Standards Committee) standards.  If DOCSIS is extended to
         work with other standards (e.g., European standards), this
         object will be modified accordingly."

    WRITE-SYNTAX INTEGER {
                           qam64 (3),
                           qam256 (4)
                         }
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    WRITE-SYNTAX INTEGER {
                taps8Increment16(3),
                taps16Increment8(4),
                taps32Increment4(5),

                taps64Increment2(6),
                taps128Increment1(7)
                 }
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    WRITE-SYNTAX Integer32 (5000000..42000000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems.  The values above are
         appropriate for a cable plant using a Sub-Split channel
         plan.  If DOCSIS is extended to cover other types of
         channel plans (and frequency allocations), this object
         will be modified accordingly."

    WRITE-SYNTAX Integer32 (200000..3200000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems.  The above value is appropriate
         for cable plants running under NTSC (National Television
         Standards Committee) standards.  If DOCSIS is extended to
         work with other standards (e.g., European standards), this
         object will be modified accordingly."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION

        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION

        "It is compliant to implement this object as read-only."

    WRITE-SYNTAX     BITS {
        createByManagement(0),
        updateByManagement(1)
       }
    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    WRITE-SYNTAX INTEGER {
                    qpsk (2),
                    qam16 (3)
                     }
    DESCRIPTION
        "A management station MAY only set 16QAM or QPSK modulation,
         but others might be possible, based on device
         configuration."

    SYNTAX Integer32 (0..1024)
    DESCRIPTION
        "The range of the values for this MODULE-COMPLIANCE
         is 0..1024."

       SYNTAX Integer32 (0..10)
       DESCRIPTION
           "The range of the values for this MODULE-COMPLIANCE
            is 0..10."

    ::= { docsIfCompliances 1 }

    STATUS      current
    DESCRIPTION
        "The compliance statement for devices that implement
         DOCSIS 2.0 Radio Frequency Interfaces."

    docsIfBasicGroupV2
    }

    DESCRIPTION
        "This group is implemented only in cable modems, not in
         cable modem termination systems."

    DESCRIPTION
        "This group is implemented only in cable modem termination
         systems, not in cable modems."

    WRITE-SYNTAX Integer32 (47000000..862000000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems.
         A range of 54MHz to 860MHz is appropriate for a cable
         plant using a North American Sub-Split channel plan.
         The spectrum range has been expanded to accommodate
         a lower edge of 47MHz and an upper edge of 862MHz
         for some European channel plans.
         If DOCSIS is extended to cover other types of channel
         plans (and frequency allocations), this object will be
         modified accordingly."

    WRITE-SYNTAX Integer32 (6000000 | 8000000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "It is important to implement this object as read-only.
         In cable modems, this object is always implemented as
         read-only.  The value of 6 MHz is appropriate for cable
         plants running under NTSC (National Television
         Standards Committee) standards.  The value of 8 MHz is
         appropriate for cable plants running under ETSI
         standards.  For other regional standards, this
         object will be modified accordingly."

    WRITE-SYNTAX INTEGER {
                           qam64 (3),
                           qam256 (4)
                         }
    MIN-ACCESS  read-only
    DESCRIPTION

        "Read-write in cable modem termination systems;
         read-only in cable modems."

    WRITE-SYNTAX INTEGER {
                taps8Increment16(3),
                taps16Increment8(4),
                taps32Increment4(5),
                taps64Increment2(6),
                taps128Increment1(7),
                taps12increment17(8)
                 }
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-write in cable modem termination systems;
         read-only in cable modems."

    WRITE-SYNTAX Integer32 (5000000..65000000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems.
         A range of 5MHz to 42MHz is appropriate for a cable
         plant using a North American Sub-Split channel plan.
         The spectrum range has been expanded to accommodate
         an upper edge of 65MHz for some European channel plans.
         If DOCSIS is extended to cover other types of channel
         plans (and frequency allocations), this object will
         be modified accordingly."

    WRITE-SYNTAX Integer32 (200000..6400000)
    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems,
         read-only in cable modems.  The above value is appropriate
         for cable plants running under NTSC (National Television
         Standards Committee) standards.  If DOCSIS is extended to
         work with other standards (e.g., European standards), this
         object will be modified accordingly."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems.
         The number of active codes when SCDMA is in use MUST range
         from 64 to 128 and MUST be a non-Prime value.
         Providing this range allows for the following features
         and capabilities:
            1) Power management in S-CDMA spreader-on frames
               (with a 3 dB spread).

            2) Avoidance of code 0.
            3) Flexible mini-slot sizes with and without the use of
               code 0."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

       MIN-ACCESS  read-only
       DESCRIPTION
           "Read-create in Cable Modem Termination Systems;
            read-only in Cable Modems.
            Entries associated to physical interfaces only support
            the read-only value 'active'."

    MIN-ACCESS  read-only
    DESCRIPTION
        "Read-create in cable modem termination systems;
         read-only in cable modems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "This object is always read-only in cable modems.
         It is compliant to implement this object as read-only
         in cable modem termination systems."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

   SYNTAX          INTEGER {
       unknown(0),
       tdma(1),
       atdma(2),
       scdma(3)
   }
    DESCRIPTION
        "CM does not use both modulation burst profiles of a
         'tdmAndAtdma' ChannelType; therefore, 'tdmAndAtdma'is
         not supported."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    MIN-ACCESS  read-only
    DESCRIPTION
        "It is compliant to implement this object as read-only."

    WRITE-SYNTAX     BITS {
        createByManagement(0),
        updateByManagement(1)
       }
    MIN-ACCESS  read-only

    DESCRIPTION
        "It is compliant to implement this object as read-only."

    WRITE-SYNTAX      INTEGER {
        qpsk(2),
        qam16(3),
        qam64(6)
    }
    DESCRIPTION
        "A management station MAY only set 64QAM, 16QAM, or QPSK
         modulation for Time or Code division Multiple Access,
         but others might be possible based on device
         configuration."

   SYNTAX          INTEGER {
       unknown(0),
       tdma(1),
       atdma(2),
       scdma(3)
   }
    DESCRIPTION
        "CM does not use both modulation burst profiles of a
         'tdmAndAtdma' ChannelType; therefore, 'tdmAndAtdma'is
         not supported."

    ::= { docsIfCompliances 2 }

    OBJECTS {
        docsIfDownChannelId,
        docsIfDownChannelFrequency,
        docsIfDownChannelWidth,
        docsIfDownChannelModulation,
        docsIfDownChannelInterleave,
        docsIfDownChannelPower,
        docsIfUpChannelId,
        docsIfUpChannelFrequency,
        docsIfUpChannelWidth,
        docsIfUpChannelModulationProfile,
        docsIfUpChannelSlotSize,
        docsIfUpChannelTxTimingOffset,
        docsIfUpChannelRangingBackoffStart,
        docsIfUpChannelRangingBackoffEnd,
        docsIfUpChannelTxBackoffStart,
        docsIfUpChannelTxBackoffEnd,
        docsIfQosProfPriority,

        docsIfQosProfMaxUpBandwidth,
        docsIfQosProfGuarUpBandwidth,
        docsIfQosProfMaxDownBandwidth,
        docsIfQosProfMaxTxBurst,
        docsIfQosProfBaselinePrivacy,
        docsIfQosProfStatus,
        docsIfSigQIncludesContention,
        docsIfSigQUnerroreds,
        docsIfSigQCorrecteds,
        docsIfSigQUncorrectables,
        docsIfSigQSignalNoise,
        docsIfSigQMicroreflections,
        docsIfSigQEqualizationData
    }
    STATUS      deprecated
    DESCRIPTION
        "Group of objects implemented in both cable modems and
         cable modem termination systems."
    ::= { docsIfGroups 1 }

    OBJECTS {
        docsIfCmCmtsAddress,
        docsIfCmCapabilities,
        docsIfCmRangingTimeout,
        docsIfCmStatusValue,
        docsIfCmStatusCode,
        docsIfCmStatusTxPower,
        docsIfCmStatusResets,
        docsIfCmStatusLostSyncs,
        docsIfCmStatusInvalidMaps,
        docsIfCmStatusInvalidUcds,
        docsIfCmStatusInvalidRangingResponses,
        docsIfCmStatusInvalidRegistrationResponses,
        docsIfCmStatusT1Timeouts,
        docsIfCmStatusT2Timeouts,
        docsIfCmStatusT3Timeouts,
        docsIfCmStatusT4Timeouts,
        docsIfCmStatusRangingAborteds,
        docsIfCmServiceQosProfile,
        docsIfCmServiceTxSlotsImmed,
        docsIfCmServiceTxSlotsDed,
        docsIfCmServiceTxRetries,
        docsIfCmServiceTxExceededs,
        docsIfCmServiceRqRetries,
        docsIfCmServiceRqExceededs
    }
    STATUS      deprecated

    DESCRIPTION
        "Group of objects implemented in cable modems."
    ::= { docsIfGroups 2 }

    OBJECTS {
        docsIfCmtsCapabilities,
        docsIfCmtsSyncInterval,
        docsIfCmtsUcdInterval,
        docsIfCmtsMaxServiceIds,
        docsIfCmtsInvitedRangingAttempts,
        docsIfCmtsInsertInterval,
        docsIfCmtsStatusInvalidRangeReqs,
        docsIfCmtsStatusRangingAborteds,
        docsIfCmtsStatusInvalidRegReqs,
        docsIfCmtsStatusFailedRegReqs,
        docsIfCmtsStatusInvalidDataReqs,
        docsIfCmtsStatusT5Timeouts,
        docsIfCmtsCmStatusMacAddress,
        docsIfCmtsCmStatusIpAddress,
        docsIfCmtsCmStatusDownChannelIfIndex,
        docsIfCmtsCmStatusUpChannelIfIndex,
        docsIfCmtsCmStatusRxPower,
        docsIfCmtsCmStatusTimingOffset,
        docsIfCmtsCmStatusEqualizationData,
        docsIfCmtsCmStatusValue,
        docsIfCmtsCmStatusUnerroreds,
        docsIfCmtsCmStatusCorrecteds,
        docsIfCmtsCmStatusUncorrectables,
        docsIfCmtsCmStatusSignalNoise,
        docsIfCmtsCmStatusMicroreflections,
        docsIfCmtsServiceCmStatusIndex,
        docsIfCmtsServiceAdminStatus,
        docsIfCmtsServiceQosProfile,
        docsIfCmtsServiceCreateTime,
        docsIfCmtsServiceInOctets,
        docsIfCmtsServiceInPackets,
        docsIfCmtsModType,
        docsIfCmtsModControl,
        docsIfCmtsModPreambleLen,
        docsIfCmtsModDifferentialEncoding,
        docsIfCmtsModFECErrorCorrection,
        docsIfCmtsModFECCodewordLength,
        docsIfCmtsModScramblerSeed,
        docsIfCmtsModMaxBurstSize,
        docsIfCmtsModGuardTimeSize,
        docsIfCmtsModLastCodewordShortened,
        docsIfCmtsModScrambler,

        docsIfCmtsQosProfilePermissions,
        docsIfCmtsCmPtr
    }
    STATUS      deprecated
    DESCRIPTION
        "Group of objects implemented in Cable Modem Termination
         Systems."
    ::= { docsIfGroups 3 }

    OBJECTS {
        docsIfCmRangingRespTimeout,
        docsIfCmtsInsertionInterval
    }
    STATUS      obsolete
    DESCRIPTION
        "Group of objects obsoleted."
    ::= { docsIfGroups 4 }

    OBJECTS {
        docsIfDownChannelId,
        docsIfDownChannelFrequency,
        docsIfDownChannelWidth,
        docsIfDownChannelModulation,
        docsIfDownChannelInterleave,
        docsIfDownChannelPower,
        docsIfDownChannelAnnex,
        docsIfUpChannelId,
        docsIfUpChannelFrequency,
        docsIfUpChannelWidth,
        docsIfUpChannelModulationProfile,
        docsIfUpChannelSlotSize,
        docsIfUpChannelTxTimingOffset,
        docsIfUpChannelRangingBackoffStart,
        docsIfUpChannelRangingBackoffEnd,
        docsIfUpChannelTxBackoffStart,
        docsIfUpChannelTxBackoffEnd,
        docsIfUpChannelScdmaActiveCodes,
        docsIfUpChannelScdmaCodesPerSlot,
        docsIfUpChannelScdmaFrameSize,
        docsIfUpChannelScdmaHoppingSeed,
        docsIfUpChannelType,
        docsIfUpChannelCloneFrom,

        docsIfUpChannelUpdate,
        docsIfUpChannelStatus,
        docsIfUpChannelPreEqEnable,
        docsIfQosProfPriority,
        docsIfQosProfMaxUpBandwidth,
        docsIfQosProfGuarUpBandwidth,
        docsIfQosProfMaxDownBandwidth,
        docsIfQosProfBaselinePrivacy,
        docsIfQosProfStatus,
        docsIfQosProfMaxTransmitBurst,
        docsIfSigQIncludesContention,
        docsIfSigQUnerroreds,
        docsIfSigQCorrecteds,
        docsIfSigQUncorrectables,
        docsIfSigQSignalNoise,
        docsIfSigQMicroreflections,
        docsIfSigQExtUnerroreds,
        docsIfSigQExtCorrecteds,
        docsIfSigQExtUncorrectables,
        docsIfDocsisBaseCapability
    }
    STATUS      current
    DESCRIPTION
        "Group of objects implemented in both cable modems and
         cable modem termination systems."
    ::= { docsIfGroups 5 }

    OBJECTS {
        docsIfCmCmtsAddress,
        docsIfCmCapabilities,
        docsIfCmRangingTimeout,
        docsIfCmStatusValue,
        docsIfCmStatusCode,
        docsIfCmStatusTxPower,
        docsIfCmStatusResets,
        docsIfCmStatusLostSyncs,
        docsIfCmStatusInvalidMaps,
        docsIfCmStatusInvalidUcds,
        docsIfCmStatusInvalidRangingResponses,
        docsIfCmStatusInvalidRegistrationResponses,
        docsIfCmStatusT1Timeouts,
        docsIfCmStatusT2Timeouts,
        docsIfCmStatusT3Timeouts,
        docsIfCmStatusT4Timeouts,
        docsIfCmStatusRangingAborteds,
        docsIfCmStatusDocsisOperMode,
        docsIfCmStatusModulationType,

        docsIfCmStatusEqualizationData,
        docsIfCmStatusUCCs,
        docsIfCmStatusUCCFails,
        docsIfCmServiceQosProfile,
        docsIfCmServiceTxSlotsImmed,
        docsIfCmServiceTxSlotsDed,
        docsIfCmServiceTxRetries,
        docsIfCmServiceTxExceededs,
        docsIfCmServiceRqRetries,
        docsIfCmServiceRqExceededs,
        docsIfCmServiceExtTxSlotsImmed,
        docsIfCmServiceExtTxSlotsDed,
        docsIfSigQEqualizationData
    }
    STATUS      current
    DESCRIPTION
        "Group of objects implemented in cable modems."
    ::= { docsIfGroups 6 }

    OBJECTS {
        docsIfCmtsCapabilities,
        docsIfCmtsSyncInterval,
        docsIfCmtsUcdInterval,
        docsIfCmtsMaxServiceIds,
        docsIfCmtsInvitedRangingAttempts,
        docsIfCmtsInsertInterval,
        docsIfCmtsMacStorageType,
        docsIfCmtsStatusInvalidRangeReqs,
        docsIfCmtsStatusRangingAborteds,
        docsIfCmtsStatusInvalidRegReqs,
        docsIfCmtsStatusFailedRegReqs,
        docsIfCmtsStatusInvalidDataReqs,
        docsIfCmtsStatusT5Timeouts,
        docsIfCmtsCmStatusMacAddress,
        docsIfCmtsCmStatusDownChannelIfIndex,
        docsIfCmtsCmStatusUpChannelIfIndex,
        docsIfCmtsCmStatusRxPower,
        docsIfCmtsCmStatusTimingOffset,
        docsIfCmtsCmStatusEqualizationData,
        docsIfCmtsCmStatusValue,
        docsIfCmtsCmStatusUnerroreds,
        docsIfCmtsCmStatusCorrecteds,
        docsIfCmtsCmStatusUncorrectables,
        docsIfCmtsCmStatusSignalNoise,
        docsIfCmtsCmStatusMicroreflections,
        docsIfCmtsCmStatusExtUnerroreds,
        docsIfCmtsCmStatusExtCorrecteds,

        docsIfCmtsCmStatusExtUncorrectables,
        docsIfCmtsCmStatusDocsisRegMode,
        docsIfCmtsCmStatusModulationType,
        docsIfCmtsCmStatusInetAddressType,
        docsIfCmtsCmStatusInetAddress,
        docsIfCmtsCmStatusValueLastUpdate,
        docsIfCmtsCmStatusHighResolutionTimingOffset,
        docsIfCmtsServiceAdminStatus,
        docsIfCmtsServiceQosProfile,
        docsIfCmtsServiceCreateTime,
        docsIfCmtsServiceInOctets,
        docsIfCmtsServiceInPackets,
        docsIfCmtsServiceNewCmStatusIndex,
        docsIfCmtsModType,
        docsIfCmtsModControl,
        docsIfCmtsModPreambleLen,
        docsIfCmtsModDifferentialEncoding,
        docsIfCmtsModFECErrorCorrection,
        docsIfCmtsModFECCodewordLength,
        docsIfCmtsModScramblerSeed,
        docsIfCmtsModMaxBurstSize,
        docsIfCmtsModGuardTimeSize,
        docsIfCmtsModLastCodewordShortened,
        docsIfCmtsModScrambler,
        docsIfCmtsModByteInterleaverDepth,
        docsIfCmtsModByteInterleaverBlockSize,
        docsIfCmtsModPreambleType,
        docsIfCmtsModTcmErrorCorrectionOn,
        docsIfCmtsModScdmaInterleaverStepSize,
        docsIfCmtsModScdmaSpreaderEnable,
        docsIfCmtsModScdmaSubframeCodes,
        docsIfCmtsModChannelType,
        docsIfCmtsModStorageType,
        docsIfCmtsQosProfilePermissions,
        docsIfCmtsCmPtr,
        docsIfCmtsChannelUtilizationInterval,
        docsIfCmtsChannelUtUtilization,
        docsIfCmtsDownChnlCtrId,
        docsIfCmtsDownChnlCtrTotalBytes,
        docsIfCmtsDownChnlCtrUsedBytes,
        docsIfCmtsDownChnlCtrExtTotalBytes,
        docsIfCmtsDownChnlCtrExtUsedBytes,
        docsIfCmtsUpChnlCtrId,
        docsIfCmtsUpChnlCtrTotalMslots,
        docsIfCmtsUpChnlCtrUcastGrantedMslots,
        docsIfCmtsUpChnlCtrTotalCntnMslots,
        docsIfCmtsUpChnlCtrUsedCntnMslots,
        docsIfCmtsUpChnlCtrExtTotalMslots,

        docsIfCmtsUpChnlCtrExtUcastGrantedMslots,
        docsIfCmtsUpChnlCtrExtTotalCntnMslots,
        docsIfCmtsUpChnlCtrExtUsedCntnMslots,
        docsIfCmtsUpChnlCtrCollCntnMslots,
        docsIfCmtsUpChnlCtrTotalCntnReqMslots,
        docsIfCmtsUpChnlCtrUsedCntnReqMslots,
        docsIfCmtsUpChnlCtrCollCntnReqMslots,
        docsIfCmtsUpChnlCtrTotalCntnReqDataMslots,
        docsIfCmtsUpChnlCtrUsedCntnReqDataMslots,
        docsIfCmtsUpChnlCtrCollCntnReqDataMslots,
        docsIfCmtsUpChnlCtrTotalCntnInitMaintMslots,
        docsIfCmtsUpChnlCtrUsedCntnInitMaintMslots,
        docsIfCmtsUpChnlCtrCollCntnInitMaintMslots,
        docsIfCmtsUpChnlCtrExtCollCntnMslots,
        docsIfCmtsUpChnlCtrExtTotalCntnReqMslots,
        docsIfCmtsUpChnlCtrExtUsedCntnReqMslots,
        docsIfCmtsUpChnlCtrExtCollCntnReqMslots,
        docsIfCmtsUpChnlCtrExtTotalCntnReqDataMslots,
        docsIfCmtsUpChnlCtrExtUsedCntnReqDataMslots,
        docsIfCmtsUpChnlCtrExtCollCntnReqDataMslots,
        docsIfCmtsUpChnlCtrExtTotalCntnInitMaintMslots,
        docsIfCmtsUpChnlCtrExtUsedCntnInitMaintMslots,
        docsIfCmtsUpChnlCtrExtCollCntnInitMaintMslots,
        docsIfDownChannelStorageType,
        docsIfQosProfStorageType

    }
    STATUS      current
    DESCRIPTION
        "Group of objects implemented in Cable Modem Termination
         Systems."
    ::= { docsIfGroups 7 }

  result in a denial of service.  Particularly, SETs to objects in

  docsIfDownstreamChannelTable, docsIfUpstreamChannelTable,
  docsIfCmtsModulationTable, and docsIfQosProfileTable (the last one
  in conjunction with the MIB object
  docsIfCmtsQosProfilePermissions) can alter negatively the physical
  and link layer parameters of upstream and downstream channels.

  group, when SET maliciously by an attacker to 'disabled' or
  'destroyed', will interrupt the service of the corresponding cable
  modem.

  docsIfSignalQualityTable (CM/CMTS) and in CMTS tables
  docsIfCmtsCmStatusTable, docsIfCmtsChannelUtilizationTable,
  docsIfCmtsDownChannelCounterTable, and
  docsIfCmtsUpChannelCounterTable, could reveal information about
  the cable modems' distribution among the upstream and downstream
  channels and their performance, which could be used to gain access
  to a different tiered service offer.  The table
  docsIfCmtsCmStatusTable also contains the MAC and IP addresses of
  the cable modems, which can be used for theft of service.

             Standard EN 300 429, Version 1.2.1: Digital Video
             Broadcasting (DVB), Framing structure, channel coding
             and modulation for cable systems", April 1998.

             Numbers Authority", October 2005,
             <http://www.iana.org/assignments/ianaiftype-mib/>.

             International Telecommunications Union, "Transmission
             Systems for Interactive Cable Television Services,
             Annex B.", March 2001, <http://www.itu.int/ITU-
             T/studygroups/com09/>.

             International Telecommunications Union, "Second-
             Generation Transmission Systems for Interactive Cable
             Television Services.", December 2002,
             <http://www.itu.int/ITU-T/studygroups/com09/>.

             International Telecommunications Union, "ITU-T
             Recommendation J.83(4/97), Digital multi-programme
             systems for television sound and data services for
             cable distribution.", April 1997,
             <http://www.itu.int/ITU-T/studygroups/com09/>.

             Requirement Levels", BCP 14, RFC 2119, March 1997.

             "Structure of Management Information Version 2
             (SMIv2)", STD 58, RFC 2578, April 1999.

             "Textual Conventions for SMIv2", STD 58, RFC 2579,
             April 1999.

             "Conformance Statements for SMIv2", STD 58, RFC 2580,
             April 1999.

             MIB", RFC 2863, June 2000.

             Schoenwaelder, "Textual Conventions for Internet
             Network Addresses", RFC 4001, February 2005.

             Specifications: Radio Frequency Interface Specification
             SP-RFIv1.1-C01-050907", September 2005,
             <http://www.cablemodem.com/specifications/>.

             Specifications: Radio Frequency Interface Specification
             SP-RFIv2.0-I09-050812", August 2005,
             <http://www.cablemodem.com/specifications/>.

             Service Interface Specifications: DOCSIS 1.0 Baseline
             Privacy Interface Specification SCTE 22-2 2002", 2002,
             <http://www.scte.org/standards/>.

             Specifications: Baseline Privacy Plus Interface
             Specification SP-BPI+-I12-050812", August 2005,
             <http://www.cablemodem.com/specifications/>.

             Specifications: Operations Support System Interface
             Specification SP-OSSIv1.1-C01-050907", September 2005,
             <http://www.cablemodem.com/specifications/>.

             Specifications: Operations Support System Interface
             Specification SP-OSSIv2.0-I09-050812", September 2005,
             <http://www.cablemodem.com/specifications/>.

             2000.

             Management Information Base for MCNS/DOCSIS compliant
             RF interfaces", RFC 2670, August 1999.

             "Introduction and Applicability Statements for
             Internet-Standard Management Framework", RFC 3410,
             December 2002.

             Service Interface Specifications: DOCSIS 1.0 Radio
             Frequency Interface Specification SCTE 22-1 2002",
             2002, <http://www.scte.org/standards/>.

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RFC4546

Contents

The Internet-Standard Management Framework

Glossary

Baseline Privacy

CATV

Channel

CM or Cable Modem

CMTS or Cable Modem Termination System

Codeword

Data Packet

dBmV

DOCSIS

DOCSIS 1.0

DOCSIS 1.1

DOCSIS 2.0

Overview

Textual Conventions

Textual Conventions in RFC 2670

Textual Conventions in RFC 4546

Structure of the MIB

docsIfBaseObjects

docsIfCmObjects

docsIfCmtsObjects

Relationship to the Interfaces MIB Module

Layering Model

Virtual Circuits

ifTestTable

ifRcvAddressTable

ifEntry

======== =====================================

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Offline Upstream Parameters Handling

Overview

Operation

Relation of docsIfUpChannelStatus and ifMib

Definitions

Revision History

Scope

Extension

Security Considerations

Management Interoperability of DOCSIS 1.0, 1.1, and 2.0

References

Normative References

Informative References

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