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RFC 3276

 
 
 

Definitions of Managed Objects for High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair High-Speed Digital Subscriber Line (SHDSL) Lines Processing

Part 3 of 3, p. 43 to 66
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hdsl2ShdslSpanConfMaxLineRate OBJECT-TYPE
   SYNTAX      Unsigned32(0..4112000)
   UNITS       "bps"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the maximum transmission rate for
      the associated SHDSL Line in bits-per-second (bps).  If
      the minimum line rate equals the maximum line rate
      (hdsl2ShdslSpanMaxLineRate), the line rate is considered
      'fixed'.  If the minimum line rate is less than the maximum
      line rate, the line rate is considered 'rate-adaptive'."
   DEFVAL      { 1552000 }
   ::= { hdsl2ShdslSpanConfProfileEntry 4 }

hdsl2ShdslSpanConfPSD OBJECT-TYPE
   SYNTAX      INTEGER
               {
               symmetric(1),
               asymmetric(2)
               }
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures use of symmetric/asymmetric PSD (Power
      Spectral Density) Mask for the associated SHDSL Line.  Support
      for symmetric PSD is mandatory for all supported data rates.
      Support for asymmetric PSD is optional."
   DEFVAL      { symmetric }
   ::= { hdsl2ShdslSpanConfProfileEntry 5 }

hdsl2ShdslSpanConfTransmissionMode OBJECT-TYPE
   SYNTAX      Hdsl2ShdslTransmissionModeType
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object specifies the regional setting for the SHDSL
      line."
   DEFVAL      { { region1 } }
   ::= { hdsl2ShdslSpanConfProfileEntry 6 }

hdsl2ShdslSpanConfRemoteEnabled OBJECT-TYPE
   SYNTAX      INTEGER
               {
               enabled(1),
               disabled(2)
               }
   MAX-ACCESS  read-create

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   STATUS      current
   DESCRIPTION
     "This object enables/disables support for remote management
      of the units in a SHDSL line from the STU-R via the EOC."
   DEFVAL      { enabled }
   ::= { hdsl2ShdslSpanConfProfileEntry 7 }

hdsl2ShdslSpanConfPowerFeeding OBJECT-TYPE
   SYNTAX      INTEGER
               {
               noPower(1),
               powerFeed(2),
               wettingCurrent(3)
               }
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object enables/disables support for optional power
      feeding in a SHDSL line."
   DEFVAL      { noPower }
   ::= { hdsl2ShdslSpanConfProfileEntry 8 }

hdsl2ShdslSpanConfCurrCondTargetMarginDown OBJECT-TYPE
   SYNTAX      Integer32(-10..21)
   UNITS       "dB"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object specifies the downstream current condition target
      SNR margin for a SHDSL line.  The SNR margin is the difference
      between the desired SNR and the actual SNR.  Target SNR margin
      is the desired SNR margin for a unit."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslSpanConfProfileEntry 9 }

hdsl2ShdslSpanConfWorstCaseTargetMarginDown OBJECT-TYPE
   SYNTAX      Integer32(-10..21)
   UNITS       "dB"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object specifies the downstream worst case target SNR
      margin for a SHDSL line.  The SNR margin is the difference
      between the desired SNR and the actual SNR.  Target SNR
      margin is the desired SNR margin for a unit."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslSpanConfProfileEntry 10 }

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hdsl2ShdslSpanConfCurrCondTargetMarginUp OBJECT-TYPE
   SYNTAX      Integer32(-10..21)
   UNITS       "dB"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object specifies the upstream current condition target
      SNR margin for a SHDSL line.  The SNR margin is the difference
      between the desired SNR and the actual SNR.  Target SNR margin
      is the desired SNR margin for a unit."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslSpanConfProfileEntry 11 }

hdsl2ShdslSpanConfWorstCaseTargetMarginUp OBJECT-TYPE
   SYNTAX      Integer32(-10..21)
   UNITS       "dB"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object specifies the upstream worst case target SNR
      margin for a SHDSL line.  The SNR margin is the difference
      between the desired SNR and the actual SNR.  Target SNR margin
      is the desired SNR margin for a unit."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslSpanConfProfileEntry 12 }

hdsl2ShdslSpanConfUsedTargetMargins OBJECT-TYPE
   SYNTAX      BITS
               {
               currCondDown(0),
               worstCaseDown(1),
               currCondUp(2),
               worstCaseUp(3)
               }
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "Contains indicates whether a target SNR margin is enabled or
      disabled.  This is a bit-map of possible settings.  The
      various bit positions are:

      currCondDown     current condition downstream target SNR
                       margin enabled

      worstCaseDown    worst case downstream target SNR margin
                       enabled

      currCondUp       current condition upstream target SNR

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                       margin enabled

      worstCaseUp      worst case upstream target SNR margin
                       enabled."
   DEFVAL      { { currCondDown } }
   ::= { hdsl2ShdslSpanConfProfileEntry 13 }

hdsl2ShdslSpanConfReferenceClock OBJECT-TYPE
   SYNTAX      Hdsl2ShdslClockReferenceType
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the clock reference for the STU-C
     in a SHDSL Line."
   DEFVAL      { localClk }
   ::= { hdsl2ShdslSpanConfProfileEntry 14 }

hdsl2ShdslSpanConfLineProbeEnable OBJECT-TYPE
   SYNTAX      INTEGER
               {
               disable(1),
               enable(2)
               }
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object enables/disables support for Line Probe of
     the units in a SHDSL line.  When Line Probe is enabled, the
     system performs Line Probing to find the best possible
     rate.  If Line probe is disabled, the rate adaptation phase
     is skipped to shorten set up time."
   DEFVAL      { disable }
   ::= { hdsl2ShdslSpanConfProfileEntry 15 }

hdsl2ShdslSpanConfProfileRowStatus OBJECT-TYPE
   SYNTAX      RowStatus
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object controls creation/deletion of the associated
      entry in this table per the semantics of RowStatus.  If an
      active entry is referenced in hdsl2ShdslSpanConfProfile, the
      entry MUST remain active until all references are removed."
   ::= { hdsl2ShdslSpanConfProfileEntry 16 }

-- Segment Endpoint Alarm Configuration Profile group
--

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hdsl2ShdslEndpointAlarmConfProfileTable OBJECT-TYPE
   SYNTAX      SEQUENCE OF Hdsl2ShdslEndpointAlarmConfProfileEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
     "This table supports definitions of alarm configuration
      profiles for HDSL2/SHDSL segment endpoints.  This table
      MUST be maintained in a persistent manner."
   ::= { hdsl2ShdslMibObjects 11 }

hdsl2ShdslEndpointAlarmConfProfileEntry OBJECT-TYPE
   SYNTAX      Hdsl2ShdslEndpointAlarmConfProfileEntry
   MAX-ACCESS  not-accessible
   STATUS      current
   DESCRIPTION
     "Each entry corresponds to a single alarm configuration profile.
      Each profile contains a set of parameters for setting alarm
      thresholds for various performance attributes monitored at
      HDSL2/SHDSL segment endpoints.  Profiles may be created/deleted
      using the row creation/deletion mechanism via
      hdsl2ShdslEndpointAlarmConfProfileRowStatus.  If an active
      entry is referenced in either hdsl2ShdslSpanConfAlarmProfile
      or hdsl2ShdslEndpointAlarmConfProfile, the entry MUST remain
      active until all references are removed."
   INDEX { IMPLIED hdsl2ShdslEndpointAlarmConfProfileName }
   ::= { hdsl2ShdslEndpointAlarmConfProfileTable 1 }

Hdsl2ShdslEndpointAlarmConfProfileEntry ::=
   SEQUENCE
   {
   hdsl2ShdslEndpointAlarmConfProfileName       SnmpAdminString,
   hdsl2ShdslEndpointThreshLoopAttenuation      Integer32,
   hdsl2ShdslEndpointThreshSNRMargin            Integer32,
   hdsl2ShdslEndpointThreshES
               Hdsl2ShdslPerfIntervalThreshold,
   hdsl2ShdslEndpointThreshSES
               Hdsl2ShdslPerfIntervalThreshold,
   hdsl2ShdslEndpointThreshCRCanomalies         Integer32,
   hdsl2ShdslEndpointThreshLOSWS
               Hdsl2ShdslPerfIntervalThreshold,
   hdsl2ShdslEndpointThreshUAS
               Hdsl2ShdslPerfIntervalThreshold,
   hdsl2ShdslEndpointAlarmConfProfileRowStatus  RowStatus
   }

hdsl2ShdslEndpointAlarmConfProfileName OBJECT-TYPE
   SYNTAX      SnmpAdminString (SIZE(1..32))
   MAX-ACCESS  not-accessible

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   STATUS      current
   DESCRIPTION
     "This object is the unique index associated with this profile."
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 1 }

hdsl2ShdslEndpointThreshLoopAttenuation OBJECT-TYPE
   SYNTAX      Integer32(-127..128)
   UNITS       "dB"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the loop attenuation alarm threshold.
      When the current value of hdsl2ShdslEndpointCurrAtn reaches
      or exceeds this threshold, a hdsl2ShdslLoopAttenCrossing
      MAY be generated."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 2 }

hdsl2ShdslEndpointThreshSNRMargin OBJECT-TYPE
   SYNTAX      Integer32(-127..128)
   UNITS       "dB"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the SNR margin alarm threshold.
      When the current value of hdsl2ShdslEndpointCurrSnrMgn
      reaches or drops below this threshold, a
      hdsl2ShdslSNRMarginCrossing MAY be generated."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 3 }

hdsl2ShdslEndpointThreshES OBJECT-TYPE
   SYNTAX      Hdsl2ShdslPerfIntervalThreshold
   UNITS       "seconds"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the threshold for the number of
      errored seconds (ES) within any given 15-minute performance
      data collection interval.  If the value of errored seconds
      in a particular 15-minute collection interval reaches/
      exceeds this value, a hdsl2ShdslPerfESThresh MAY be
      generated.  At most one notification will be sent per
      interval per endpoint."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 4 }

hdsl2ShdslEndpointThreshSES OBJECT-TYPE

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   SYNTAX      Hdsl2ShdslPerfIntervalThreshold
   UNITS       "seconds"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the threshold for the number of
      severely errored seconds (SES) within any given 15-minute
      performance data collection interval.  If the value of
      severely errored seconds in a particular 15-minute collection
      interval reaches/exceeds this value, a hdsl2ShdslPerfSESThresh
      MAY be generated.  At most one notification will be sent per
      interval per endpoint."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 5 }

hdsl2ShdslEndpointThreshCRCanomalies OBJECT-TYPE
   SYNTAX      Integer32
   UNITS       "detected CRC Anomalies"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the threshold for the number of
      CRC anomalies within any given 15-minute performance data
      collection interval.  If the value of CRC anomalies in a
      particular 15-minute collection interval reaches/exceeds
      this value, a hdsl2ShdslPerfCRCanomaliesThresh MAY be
      generated.  At most one notification will be sent per
      interval per endpoint."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 6 }

hdsl2ShdslEndpointThreshLOSWS OBJECT-TYPE
   SYNTAX      Hdsl2ShdslPerfIntervalThreshold
   UNITS       "seconds"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the threshold for the number of
      Loss of Sync Word (LOSW) Seconds within any given 15-minute
      performance data collection interval.  If the value of LOSW
      in a particular 15-minute collection interval reaches/exceeds
      this value, a hdsl2ShdslPerfLOSWSThresh MAY be generated.
      At most one notification will be sent per interval per
      endpoint."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 7 }

hdsl2ShdslEndpointThreshUAS OBJECT-TYPE

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   SYNTAX      Hdsl2ShdslPerfIntervalThreshold
   UNITS       "seconds"
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object configures the threshold for the number of
      unavailable seconds (UAS) within any given 15-minute
      performance data collection interval.  If the value of UAS
      in a particular 15-minute collection interval reaches/exceeds
      this value, a hdsl2ShdslPerfUASThresh MAY be generated.
      At most one notification will be sent per interval per
      endpoint."
   DEFVAL      { 0 }
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 8 }

hdsl2ShdslEndpointAlarmConfProfileRowStatus OBJECT-TYPE
   SYNTAX      RowStatus
   MAX-ACCESS  read-create
   STATUS      current
   DESCRIPTION
     "This object controls creation/deletion of the associated
      entry in this table as per the semantics of RowStatus.
      If an active entry is referenced in either
      hdsl2ShdslSpanConfAlarmProfile or
      hdsl2ShdslEndpointAlarmConfProfile, the entry MUST remain
      active until all references are removed."
   ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 9 }

-- Notifications Group
--

hdsl2ShdslNotifications OBJECT IDENTIFIER ::= { hdsl2ShdslMIB 0 }

hdsl2ShdslLoopAttenCrossing NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrAtn,
   hdsl2ShdslEndpointThreshLoopAttenuation
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that the loop attenuation
      threshold (as per the hdsl2ShdslEndpointThreshLoopAttenuation
      value) has been reached/exceeded for the HDSL2/SHDSL segment
      endpoint."
   ::= { hdsl2ShdslNotifications 1 }

hdsl2ShdslSNRMarginCrossing NOTIFICATION-TYPE

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   OBJECTS
   {

   hdsl2ShdslEndpointCurrSnrMgn,
   hdsl2ShdslEndpointThreshSNRMargin
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that the SNR margin threshold (as
      per the hdsl2ShdslEndpointThreshSNRMargin value) has been
      reached/exceeded for the HDSL2/SHDSL segment endpoint."
   ::= { hdsl2ShdslNotifications 2 }

hdsl2ShdslPerfESThresh NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurr15MinES,
   hdsl2ShdslEndpointThreshES
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that the errored seconds threshold
      (as per the hdsl2ShdslEndpointThreshES value) has been reached/
      exceeded for the HDSL2/SHDSL segment endpoint."
   ::= { hdsl2ShdslNotifications 3 }

hdsl2ShdslPerfSESThresh NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurr15MinSES,
   hdsl2ShdslEndpointThreshSES
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that the severely errored seconds
      threshold (as per the hdsl2ShdslEndpointThreshSES value) has
      been reached/exceeded for the HDSL2/SHDSL Segment Endpoint."
   ::= { hdsl2ShdslNotifications 4 }

hdsl2ShdslPerfCRCanomaliesThresh NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurr15MinCRCanomalies,
   hdsl2ShdslEndpointThreshCRCanomalies
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the CRC anomalies threshold

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      (as per the hdsl2ShdslEndpointThreshCRCanomalies value) has
      been reached/exceeded for the HDSL2/SHDSL Segment Endpoint."
   ::= { hdsl2ShdslNotifications 5 }

hdsl2ShdslPerfLOSWSThresh NOTIFICATION-TYPE
   OBJECTS
   {

   hdsl2ShdslEndpointCurr15MinLOSWS,
   hdsl2ShdslEndpointThreshLOSWS
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that the LOSW seconds threshold
      (as per the hdsl2ShdslEndpointThreshLOSWS value) has been
      reached/exceeded for the HDSL2/SHDSL segment endpoint."
   ::= { hdsl2ShdslNotifications 6 }

hdsl2ShdslPerfUASThresh NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurr15MinUAS,
   hdsl2ShdslEndpointThreshUAS
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that the unavailable seconds
      threshold (as per the hdsl2ShdslEndpointThreshUAS value) has
      been reached/exceeded for the HDSL2/SHDSL segment endpoint."
   ::= { hdsl2ShdslNotifications 7 }

hdsl2ShdslSpanInvalidNumRepeaters NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslSpanConfNumRepeaters
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that a mismatch has been detected
      between the number of repeater/regenerator units configured
      for a HDSL2/SHDSL line via the hdsl2ShdslSpanConfNumRepeaters
      object and the actual number of repeater/regenerator units
      discovered via the EOC."
   ::= { hdsl2ShdslNotifications 8 }

hdsl2ShdslLoopbackFailure NOTIFICATION-TYPE
   OBJECTS
   {

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   hdsl2ShdslMaintLoopbackConfig
   }
   STATUS     current
   DESCRIPTION
     "This notification indicates that an endpoint maintenance
      loopback command failed for an HDSL2/SHDSL segment."
   ::= { hdsl2ShdslNotifications 9 }

hdsl2ShdslpowerBackoff NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrStatus
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the bit setting for
      powerBackoff in the hdsl2ShdslEndpointCurrStatus object for
      this endpoint has changed."
   ::= { hdsl2ShdslNotifications 10 }

hdsl2ShdsldeviceFault NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrStatus
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the bit setting for
      deviceFault in the hdsl2ShdslEndpointCurrStatus object for
      this endpoint has changed."
   ::= { hdsl2ShdslNotifications 11 }

hdsl2ShdsldcContinuityFault NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrStatus
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the bit setting for
      dcContinuityFault in the hdsl2ShdslEndpointCurrStatus object
      for this endpoint has changed."
   ::= { hdsl2ShdslNotifications 12 }

hdsl2ShdslconfigInitFailure NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrStatus

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   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the bit setting for
      configInitFailure in the hdsl2ShdslEndpointCurrStatus object
      for this endpoint has changed."
   ::= { hdsl2ShdslNotifications 13 }

hdsl2ShdslprotocolInitFailure NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrStatus
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the bit setting for
      protocolInitFailure in the hdsl2ShdslEndpointCurrStatus
      object for this endpoint has changed."
   ::= { hdsl2ShdslNotifications 14 }

hdsl2ShdslnoNeighborPresent NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslEndpointCurrStatus
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates that the bit setting for
      noNeighborPresent in the hdsl2ShdslEndpointCurrStatus object
      for this endpoint has changed."
   ::= { hdsl2ShdslNotifications 15 }

hdsl2ShdslLocalPowerLoss NOTIFICATION-TYPE
   OBJECTS
   {
   hdsl2ShdslInvVendorID
   }
   STATUS    current
   DESCRIPTION
     "This notification indicates impending unit failure due to
      loss of local power (last gasp)."
   ::= { hdsl2ShdslNotifications 16 }

-- conformance information
--

hdsl2ShdslConformance OBJECT IDENTIFIER ::= { hdsl2ShdslMIB 3 }
hdsl2ShdslGroups      OBJECT IDENTIFIER ::=

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             { hdsl2ShdslConformance 1 }
hdsl2ShdslCompliances OBJECT IDENTIFIER ::=
             { hdsl2ShdslConformance 2 }

-- agent compliance statements

hdsl2ShdslLineMibCompliance MODULE-COMPLIANCE
   STATUS  current
   DESCRIPTION
     "The section outlines compliance requirements for this MIB."
   MODULE
   MANDATORY-GROUPS
   {
   hdsl2ShdslSpanConfGroup,
   hdsl2ShdslSpanStatusGroup,
   hdsl2ShdslInventoryGroup,
   hdsl2ShdslEndpointConfGroup,
   hdsl2ShdslEndpointCurrGroup,
   hdsl2Shdsl15MinIntervalGroup,
   hdsl2Shdsl1DayIntervalGroup,
   hdsl2ShdslMaintenanceGroup,
   hdsl2ShdslEndpointAlarmConfGroup,
   hdsl2ShdslNotificationGroup
   }

GROUP  hdsl2ShdslInventoryShdslGroup
   DESCRIPTION
     "Support for this group is only required for implementations
     supporting SHDSL lines."

GROUP  hdsl2ShdslSpanShdslStatusGroup
   DESCRIPTION
     "Support for this group is only required for implementations
     supporting SHDSL lines."

GROUP  hdsl2ShdslSpanConfProfileGroup
   DESCRIPTION
     "Support for this group is only required for implementations
     supporting SHDSL lines."

   ::= { hdsl2ShdslCompliances 1 }

-- units of conformance
--

hdsl2ShdslSpanConfGroup OBJECT-GROUP
   OBJECTS
   {

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   hdsl2ShdslSpanConfNumRepeaters,
   hdsl2ShdslSpanConfProfile,
   hdsl2ShdslSpanConfAlarmProfile
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects for configuring span related
      parameters for HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 1 }

hdsl2ShdslSpanStatusGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslStatusNumAvailRepeaters
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects for retrieving span related
      status for HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 2 }

hdsl2ShdslInventoryShdslGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslInvTransmissionModeCapability
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects for retrieving SHDSL-specific
      inventory information."
   ::= { hdsl2ShdslGroups 3 }

hdsl2ShdslSpanShdslStatusGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslStatusMaxAttainableLineRate,
   hdsl2ShdslStatusActualLineRate,
   hdsl2ShdslStatusTransmissionModeCurrent
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects for retrieving SHDSL-specific
      span related status."
   ::= { hdsl2ShdslGroups 4 }

hdsl2ShdslInventoryGroup OBJECT-GROUP
   OBJECTS
   {

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   hdsl2ShdslInvVendorID,
   hdsl2ShdslInvVendorModelNumber,
   hdsl2ShdslInvVendorSerialNumber,
   hdsl2ShdslInvVendorEOCSoftwareVersion,
   hdsl2ShdslInvStandardVersion,
   hdsl2ShdslInvVendorListNumber,
   hdsl2ShdslInvVendorIssueNumber,
   hdsl2ShdslInvVendorSoftwareVersion,
   hdsl2ShdslInvEquipmentCode,
   hdsl2ShdslInvVendorOther
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects that provide unit inventory
      information about the units in HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 5 }

hdsl2ShdslEndpointConfGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslEndpointCurrAtn
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects for configuring parameters for
      segment endpoints in HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 6 }

hdsl2ShdslEndpointCurrGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslEndpointCurrAtn,
   hdsl2ShdslEndpointCurrSnrMgn,
   hdsl2ShdslEndpointCurrStatus,
   hdsl2ShdslEndpointES,
   hdsl2ShdslEndpointSES,
   hdsl2ShdslEndpointCRCanomalies,
   hdsl2ShdslEndpointLOSWS,
   hdsl2ShdslEndpointUAS,
   hdsl2ShdslEndpointCurr15MinTimeElapsed,
   hdsl2ShdslEndpointCurr15MinES,
   hdsl2ShdslEndpointCurr15MinSES,
   hdsl2ShdslEndpointCurr15MinCRCanomalies,
   hdsl2ShdslEndpointCurr15MinLOSWS,
   hdsl2ShdslEndpointCurr15MinUAS,
   hdsl2ShdslEndpointCurr1DayTimeElapsed,
   hdsl2ShdslEndpointCurr1DayES,
   hdsl2ShdslEndpointCurr1DaySES,

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   hdsl2ShdslEndpointCurr1DayCRCanomalies,
   hdsl2ShdslEndpointCurr1DayLOSWS,
   hdsl2ShdslEndpointCurr1DayUAS
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects which provide current status and
      performance measurements relating to segment endpoints in
      HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 7 }

hdsl2Shdsl15MinIntervalGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2Shdsl15MinIntervalES,
   hdsl2Shdsl15MinIntervalSES,
   hdsl2Shdsl15MinIntervalCRCanomalies,
   hdsl2Shdsl15MinIntervalLOSWS,
   hdsl2Shdsl15MinIntervalUAS
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects which maintain historic
      performance measurements relating to segment endpoints in
      HDSL2/SHDSL lines in 15-minute intervals."
   ::= { hdsl2ShdslGroups 8 }

hdsl2Shdsl1DayIntervalGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2Shdsl1DayIntervalMoniSecs,
   hdsl2Shdsl1DayIntervalES,
   hdsl2Shdsl1DayIntervalSES,
   hdsl2Shdsl1DayIntervalCRCanomalies,
   hdsl2Shdsl1DayIntervalLOSWS,
   hdsl2Shdsl1DayIntervalUAS
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects which maintain historic
      performance measurements relating to segment endpoints in
      HDSL2/SHDSL lines in 1-day intervals."
   ::= { hdsl2ShdslGroups 9 }

hdsl2ShdslMaintenanceGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslMaintLoopbackConfig,

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   hdsl2ShdslMaintTipRingReversal,
   hdsl2ShdslMaintPowerBackOff,
   hdsl2ShdslMaintSoftRestart,
   hdsl2ShdslMaintLoopbackTimeout,
   hdsl2ShdslMaintUnitPowerSource
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects that provide support for
      maintenance actions for HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 10 }

hdsl2ShdslEndpointAlarmConfGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslEndpointAlarmConfProfile,
   hdsl2ShdslEndpointThreshLoopAttenuation,
   hdsl2ShdslEndpointThreshSNRMargin,
   hdsl2ShdslEndpointThreshES,
   hdsl2ShdslEndpointThreshSES,
   hdsl2ShdslEndpointThreshCRCanomalies,
   hdsl2ShdslEndpointThreshLOSWS,
   hdsl2ShdslEndpointThreshUAS,
   hdsl2ShdslEndpointAlarmConfProfileRowStatus
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects that allow configuration of alarm
      thresholds for various performance parameters for HDSL2/SHDSL
      lines."
   ::= { hdsl2ShdslGroups 11 }

hdsl2ShdslNotificationGroup NOTIFICATION-GROUP
   NOTIFICATIONS
   {
   hdsl2ShdslLoopAttenCrossing,
   hdsl2ShdslSNRMarginCrossing,
   hdsl2ShdslPerfESThresh,
   hdsl2ShdslPerfSESThresh,
   hdsl2ShdslPerfCRCanomaliesThresh,
   hdsl2ShdslPerfLOSWSThresh,
   hdsl2ShdslPerfUASThresh,
   hdsl2ShdslSpanInvalidNumRepeaters,
   hdsl2ShdslLoopbackFailure,
   hdsl2ShdslpowerBackoff,
   hdsl2ShdsldeviceFault,
   hdsl2ShdsldcContinuityFault,
   hdsl2ShdslconfigInitFailure,

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   hdsl2ShdslprotocolInitFailure,
   hdsl2ShdslnoNeighborPresent,
   hdsl2ShdslLocalPowerLoss
   }
   STATUS      current
   DESCRIPTION
     "This group supports notifications of significant conditions
     associated with HDSL2/SHDSL lines."
   ::= { hdsl2ShdslGroups 12 }

hdsl2ShdslSpanConfProfileGroup OBJECT-GROUP
   OBJECTS
   {
   hdsl2ShdslSpanConfWireInterface,
   hdsl2ShdslSpanConfMinLineRate,
   hdsl2ShdslSpanConfMaxLineRate,
   hdsl2ShdslSpanConfPSD,
   hdsl2ShdslSpanConfTransmissionMode,
   hdsl2ShdslSpanConfRemoteEnabled,
   hdsl2ShdslSpanConfPowerFeeding,
   hdsl2ShdslSpanConfCurrCondTargetMarginDown,
   hdsl2ShdslSpanConfWorstCaseTargetMarginDown,
   hdsl2ShdslSpanConfCurrCondTargetMarginUp,
   hdsl2ShdslSpanConfWorstCaseTargetMarginUp,
   hdsl2ShdslSpanConfUsedTargetMargins,
   hdsl2ShdslSpanConfReferenceClock,
   hdsl2ShdslSpanConfLineProbeEnable,
   hdsl2ShdslSpanConfProfileRowStatus
   }
   STATUS      current
   DESCRIPTION
     "This group supports objects that constitute configuration
      profiles for configuring span related parameters in SHDSL
      lines."
   ::= { hdsl2ShdslGroups 13 }
END

7.  Security Considerations

   Blocking unauthorized access to the HDSL2-SHDSL MIB via the element
   management system is outside the scope of this document.  It should
   be noted that access to the MIB permits the unauthorized entity to
   modify the profiles (section 6.4) such that both subscriber service
   and network operations can be interfered with.  Subscriber service
   can be altered by modifying any of a number of service
   characteristics such as rate partitioning and maximum transmission
   rates.  Network operations can be impacted by modification of
   notification thresholds such as SES thresholds.

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   There are a number of managed objects in this MIB that may be
   considered to contain sensitive information.  Access to these objects
   would allow an intruder to obtain information about which vendor's
   equipment is in use on the network.  Further, such information is
   considered sensitive in many environments for competitive reasons.

   These identifying objects in the inventory group are:

   - hdsl2ShdslInvVendorID
   - hdsl2ShdslInvVendorModelNumber
   - hdsl2ShdslInvVendorSerialNumber
   - hdsl2ShdslInvVendorEOCSoftwareVersion
   - hdsl2ShdslInvStandardVersion
   - hdsl2ShdslInvVendorListNumber
   - hdsl2ShdslInvVendorIssueNumber
   - hdsl2ShdslInvVendorSoftwareVersion
   - hdsl2ShdslInvEquipmentCode
   - hdsl2ShdslInvVendorOther
   - hdsl2ShdslInvTransmissionModeCapability

   Therefore, it may be important in some environments to control read
   access to these objects and possibly to even encrypt the values of
   these object when sending them over the network via SNMP.  Not all
   versions of SNMP provide features for such a secure environment.

   It is recommended that the implementors consider the security
   features as provided by the SNMPv3 framework.  Specifically, the use
   of the User-based Security Model RFC 2574 [12] and the View-based
   Access Control Model RFC 2575 [15] are recommended.

   It is then the customer/user's responsibility to ensure that the SNMP
   entity giving access to an instance of this MIB, is properly
   configured to give access to those objects only to those principals
   (users) that have legitimate rights to access them.

   HDSL2-SHDSL layer connectivity from the xtuR will permit the
   subscriber to manipulate both the HDSL2-SHDSL link directly and the
   HDSL2-SHDSL embedded  operations channel (EOC) for their own loop.
   For example, unchecked or unfiltered fluctuations initiated by the
   subscriber could generate sufficient notifications to potentially
   overwhelm either the management interface to the network or the
   element manager.

   It should be noted that interface indices in this MIB are maintained
   persistently.  VACM data relating to these should be stored
   persistently.

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   There are a number of management objects defined in this MIB that
   have a MAX-ACCESS clause of read-write and/or read-create.  Such
   objects may be considered sensitive or vulnerable in some network
   environments.  The support for SET operations in a non-secure
   environment without proper protection can have a negative effect on
   network operations.

8.  Acknowledgments

   The authors are deeply grateful to the authors of the ADSL LINE MIB
   (RFC 2662 [23]), Gregory Bathrick and Faye Ly, as much of the text
   and structure of this document originates in their documents.

   The authors are also grateful to the authors of FR MFR MIB (RFC 3020
   [24]), Prayson Pate, Bob Lynch, and Kenneth Rehbehn, as the majority
   of the Security Considerations section was lifted from their
   document.

   The authors also acknowledge the importance of the contributions and
   suggestions regarding interface indexing structures received from
   David Horton of CITR.

   Other contributions were received from the following:

      Philip Bergstresser (Adtran)
      Steve Blackwell (Centillium)
      Umberto Bonollo (NEC Australia)
      Yagal Hachmon (RAD)
      Mark Johnson (Red Point)
      Sharon Mantin (Orckit)
      Moti Morgenstern (ECI)
      Raymond Murphy (Ericsson)
      Lee Nipper (Verilink)
      Randy Presuhn (BMC Software)
      Katy Sherman (Orckit)
      Mike Sneed (ECI)
      Jon Turney (DSL Solutions)
      Aron Wahl (Memotec)
      Bert Wijnen (Lucent)
      Michael Wrobel (Memotec)

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9.  References

   [1]   Harrington, D., Presuhn, R. and B. Wijnen, "An Architecture for
         Describing SNMP Management Frameworks", RFC 2571, April 1999.

   [2]   Rose, M. and K. McCloghrie, "Structure and Identification of
         Management Information for TCP/IP-based Internets", STD 16, RFC
         1155, May 1990.

   [3]   Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16,
         RFC 1212, March 1991.

   [4]   Rose, M., "A Convention for Defining Traps for use with the
         SNMP", RFC 1215, March 1991.

   [5]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
         M. and S. Waldbusser, "Structure of Management Information
         Version 2 (SMIv2)", STD 58, RFC 2578, April 1999.

   [6]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
         M. and S. Waldbusser, "Textual Conventions for SMIv2", STD 58,
         RFC 2579, April 1999.

   [7]   McCloghrie, K., Perkins, D., Schoenwaelder, J., Case, J., Rose,
         M. and S. Waldbusser, "Conformance Statements for SMIv2", STD
         58, RFC 2580, April 1999.

   [8]   Case, J., Fedor, M., Schoffstall, M. and J. Davin, "Simple
         Network Management Protocol", STD 15, RFC 1157, May 1990.

   [9]   Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
         "Introduction to Community-based SNMPv2", RFC 1901, January
         1996.

   [10]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
         "Transport Mappings for Version 2 of the Simple Network
         Management Protocol (SNMPv2)", RFC 1906, January 1996.

   [11]  Case, J., Harrington D., Presuhn, R. and B. Wijnen, "Message
         Processing and Dispatching for the Simple Network Management
         Protocol (SNMP)", RFC 2572, April 1999.

   [12]  Blumenthal, U. and B. Wijnen, "User-based Security Model (USM)
         for version 3 of the Simple Network Management Protocol
         (SNMPv3)", RFC 2574, April 1999.

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   [13]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Protocol
         Operations for Version 2 of the Simple Network Management
         Protocol (SNMPv2)", RFC 1905, January 1996.

   [14]  Levi, D., Meyer, P. and B. Stewart, "SNMPv3 Applications", RFC
         2573, April 1999.

   [15]  Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access
         Control Model (VACM) for the Simple Network Management Protocol
         (SNMP)", RFC 2575, April 1999.

   [16]  Case, J., Mundy, R., Partain, D. and B. Stewart, "Introduction
         to Version 3 of the Internet-standard Network Management
         Framework", RFC 2570, April 1999.

   [17]  Bradner, S., "Key Words for use in RFCs to Indicate Requirement
         Levels", BCP 14, RFC 2119, March 1997.

   [18]  American National Standards Institute, ANSI T1E1.4/2000-006,
         February 2000.

   [19]  Blackwell, S., Editor, "Single-Pair High-Speed Digital
         Subscriber Line (SHDSL) Transceivers", ITU-T Draft G.991.2,
         April 2000.

   [20]  McCloghrie, K. and M. Rose, M., "Management Information Base
         for Network Management of TCP/IP-based internets: MIB-II", STD
         17, RFC 1213, March 1991.

   [21]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB",
         RFC 2863, June 2000.

   [22]  Tesink, K., "Textual Conventions for MIB Modules Using
         Performance History Based on 15 Minute Intervals", RFC 2493,
         January 1999.

   [23]  Bathrick, G. and F. Ly, "Definitions of Managed Objects for the
         ADSL Lines", RFC 2662, August 1999.

   [24]  Pate, P., Lynch, B. and K. Rehbehn, "Definitions of Managed
         Objects for Monitoring and Controlling the UNI/NNI Multilink
         Frame Relay Function", RFC 3020, December 2000.

   [25]  American National Standards Institute, "Coded Identification of
         Equipment Entities of the North American Telecommunications
         System for the Purpose of Information Exchange", T1.213-2001.

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10.  Intellectual Property Notice

   The IETF takes no position regarding the validity or scope of any
   intellectual property or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; neither does it represent that it
   has made any effort to identify any such rights.  Information on the
   IETF's procedures with respect to rights in standards-track and
   standards-related documentation can be found in BCP-11.  Copies of
   claims of rights made available for publication and any assurances of
   licenses to be made available, or the result of an attempt made to
   obtain a general license or permission for the use of such
   proprietary rights by implementors or users of this specification can
   be obtained from the IETF Secretariat.

   The IETF invites any interested party to bring to its attention any
   copyrights, patents or patent applications, or other proprietary
   rights which may cover technology that may be required to practice
   this standard.  Please address the information to the IETF Executive
   Director.

11.  Authors' Addresses

   Bob Ray
   PESA Switching Systems, Inc.
   330-A Wynn Drive
   Huntsville, AL 35805 USA

   Phone: +1 256 726 9200 ext. 142
   Fax: +1 256 726 9271
   EMail: rray@pesa.com

   Rajesh Abbi
   Alcatel USA
   2912 Wake Forest Road
   Raleigh, NC 27609-7860 USA

   Phone: +1 919-850-6194
   Fax:   +1 919-850-6670
   EMail: Rajesh.Abbi@alcatel.com

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12.  Full Copyright Statement

   Copyright (C) The Internet Society (2002).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
   Internet organizations, except as needed for the purpose of
   developing Internet standards in which case the procedures for
   copyrights defined in the Internet Standards process must be
   followed, or as required to translate it into languages other than
   English.

   The limited permissions granted above are perpetual and will not be
   revoked by the Internet Society or its successors or assigns.

   This document and the information contained herein is provided on an
   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
   TASK FORCE DISCLAIMS ALL WARRANTIES, EXPRESS OR IMPLIED, INCLUDING
   BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE INFORMATION
   HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED WARRANTIES OF
   MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Acknowledgement

   Funding for the RFC Editor function is currently provided by the
   Internet Society.