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RFC 4319

 
 
 

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

Part 3 of 3, p. 51 to 75
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   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, an 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, an hdsl2ShdslPerfESThresh MAY be
         generated.  At most, one notification will be sent per
         interval per endpoint."
      DEFVAL      { 0 }
      ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 4 }

   hdsl2ShdslEndpointThreshSES OBJECT-TYPE
      SYNTAX      Hdsl2ShdslPerfIntervalThreshold
      UNITS       "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION

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        "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, an 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, an 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, an hdsl2ShdslPerfLOSWSThresh MAY be generated.
         At most, one notification will be sent per interval per
         endpoint."
      DEFVAL      { 0 }
      ::= { hdsl2ShdslEndpointAlarmConfProfileEntry 7 }

   hdsl2ShdslEndpointThreshUAS OBJECT-TYPE
      SYNTAX      Hdsl2ShdslPerfIntervalThreshold
      UNITS       "seconds"
      MAX-ACCESS  read-create
      STATUS      current
      DESCRIPTION

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        "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, an 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
      OBJECTS
      {
      hdsl2ShdslEndpointCurrSnrMgn,
      hdsl2ShdslEndpointThreshSNRMargin
      }

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

   hdsl2ShdslPerfLOSWSThresh NOTIFICATION-TYPE

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

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

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

   -- agent compliance statements

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   hdsl2ShdslLineMibCompliance MODULE-COMPLIANCE
      STATUS  deprecated
      DESCRIPTION
        "The compliance statement for SNMP entities that implement
        HDSL2 and SHDSL.  The version of SHDSL supported in this
        compliance statement is g.shdsl.

        **** This compliance statement is deprecated. ****"
      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."

   OBJECT hdsl2ShdslSpanConfWireInterface
      SYNTAX      INTEGER
                  {
                  twoWire(1),
                  fourWire(2)
                  }
      DESCRIPTION
        "An implementation only has to support the range as
        applicable for the original g.shdsl specification defined
        in RFC 3276."

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   OBJECT hdsl2ShdslStatusMaxAttainableLineRate
      SYNTAX      Unsigned32(0..4112000)
      DESCRIPTION
        "An implementation only has to support the range as
        applicable for the original g.shdsl specification defined
        in RFC 3276."

   OBJECT hdsl2ShdslStatusActualLineRate
      SYNTAX      Unsigned32(0..4112000)
      DESCRIPTION
        "An implementation only has to support the range as
        applicable for the original g.shdsl specification defined
        in RFC 3276."

   OBJECT hdsl2ShdslSpanConfMinLineRate
      SYNTAX      Unsigned32(0..4112000)
      DESCRIPTION
        "An implementation only has to support the range as
        applicable for the original g.shdsl specification defined
        in RFC 3276."

   OBJECT hdsl2ShdslSpanConfMaxLineRate
      SYNTAX      Unsigned32(0..4112000)
      DESCRIPTION
        "An implementation only has to support the range as
        applicable for the original g.shdsl specification defined
        in RFC 3276."

      ::= { hdsl2ShdslCompliances 1 }

   hdsl2GshdslbisLineMibCompliance MODULE-COMPLIANCE
      STATUS  current
      DESCRIPTION
        "The compliance statement for SNMP entities that implement
        HDSL2 and SHDSL.  The version of SHDSL supported in this
        compliance statement is g.shdsl.bis."
      MODULE
      MANDATORY-GROUPS
      {
      hdsl2ShdslSpanConfGroup,
      hdsl2ShdslSpanStatusGroup,
      hdsl2ShdslInventoryGroup,
      hdsl2ShdslEndpointConfGroup,
      hdsl2ShdslEndpointCurrGroup,
      hdsl2Shdsl15MinIntervalGroup,
      hdsl2Shdsl1DayIntervalGroup,
      hdsl2ShdslMaintenanceGroup,
      hdsl2ShdslEndpointAlarmConfGroup,

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      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."

   GROUP hdsl2ShdslWirePairGroup
      DESCRIPTION
        "Support for this group is only required for implementations
        supporting SHDSL lines."

   GROUP hdsl2ShdslPayloadRateGroup
      DESCRIPTION
        "Support for this group is only required for implementations
        supporting SHDSL lines."

      ::= { hdsl2ShdslCompliances 2 }

   -- units of conformance
   --

   hdsl2ShdslSpanConfGroup OBJECT-GROUP
      OBJECTS
      {
      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

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      {
      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
      {
      hdsl2ShdslInvVendorID,
      hdsl2ShdslInvVendorModelNumber,
      hdsl2ShdslInvVendorSerialNumber,
      hdsl2ShdslInvVendorEOCSoftwareVersion,
      hdsl2ShdslInvStandardVersion,
      hdsl2ShdslInvVendorListNumber,
      hdsl2ShdslInvVendorIssueNumber,
      hdsl2ShdslInvVendorSoftwareVersion,
      hdsl2ShdslInvEquipmentCode,
      hdsl2ShdslInvVendorOther
      }
      STATUS      current

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

   hdsl2Shdsl15MinIntervalGroup OBJECT-GROUP

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      OBJECTS
      {
      hdsl2Shdsl15MinIntervalES,
      hdsl2Shdsl15MinIntervalSES,
      hdsl2Shdsl15MinIntervalCRCanomalies,
      hdsl2Shdsl15MinIntervalLOSWS,
      hdsl2Shdsl15MinIntervalUAS
      }
      STATUS      current
      DESCRIPTION
        "This group supports objects that 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 that maintain historic
         performance measurements relating to segment endpoints in
         HDSL2/SHDSL lines in 1-day intervals."
      ::= { hdsl2ShdslGroups 9 }

   hdsl2ShdslMaintenanceGroup OBJECT-GROUP
      OBJECTS
      {
      hdsl2ShdslMaintLoopbackConfig,
      hdsl2ShdslMaintTipRingReversal,
      hdsl2ShdslMaintPowerBackOff,
      hdsl2ShdslMaintSoftRestart,
      hdsl2ShdslMaintLoopbackTimeout,
      hdsl2ShdslMaintUnitPowerSource
      }
      STATUS      current
      DESCRIPTION
        "This group supports objects that provide support for
         maintenance actions for HDSL2/SHDSL lines."
      ::= { hdsl2ShdslGroups 10 }

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

   hdsl2ShdslSpanConfProfileGroup OBJECT-GROUP
      OBJECTS

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      {
      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 }

   hdsl2ShdslWirePairGroup OBJECT-GROUP
      OBJECTS
      {
      hdsl2ShdslEndpointCurrTipRingReversal,
      hdsl2ShdslEndpointCurrActivationState
      }
      STATUS      current
      DESCRIPTION
        "This group supports objects that provide the status
         of SHDSL-specific wire pairs."
      ::= { hdsl2ShdslGroups 14 }

   hdsl2ShdslPayloadRateGroup OBJECT-GROUP
      OBJECTS
      {
      hdsl2ShdslStatusMaxAttainablePayloadRate,
      hdsl2ShdslStatusActualPayloadRate
      }
      STATUS      current
      DESCRIPTION
        "This group supports objects for retrieving payload rates
         that exclude any framing overhead."
      ::= { hdsl2ShdslGroups 15 }

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   END

4.  Implementation Analysis

   A management application that supports RFC 3276 could mistakenly flag
   a unit that responds with a rate or wire pair that exceeds the ranges
   and/or enumerations specified in RFC 3276.  For example, a
   G.shdsl.bis line with four wire pairs would report statistics for
   wire pairs that do not exist in RFC 3276.  That is, a GET-NEXT
   request issues with the object identifier:

      hdsl2ShdslEndpointCurrAtn.1.1.1.2

   might return

      hdsl2ShdslEndpointCurrAtn.1.1.1.3 = 0

   with a G.shdsl.bis unit and

      hdsl2ShdslEndpointCurrSnrMgn.1.1.1.1 = 0

   with an HDSL2 unit as these objects are indexed by

      INDEX  { ifIndex, hdsl2ShdslInvIndex, hdsl2ShdslendpointSide,
               hdsl2ShdslEndpointWirePair }

   A management application intended to manage G.shdsl.bis agents SHOULD
   be modified to accept this sequence.

   One should note that this same unmodified management application is
   still capable of managing G.shdsl.bis agents albeit to the degree of
   G.SHDSL (non-bis) limitations.  That is, it can create and monitor
   configurations limited to two wire pairs with an upper-rate limit of
   4112000 bits/second.

5.  Security Considerations

   There are a number of management objects defined in this MIB module
   with 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.  These are the tables and objects and their
   sensitivity/vulnerability:

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   o  hdsl2ShdslSpanConfTable

      The table consists of the following objects that support SET
      operations:

      *  hdsl2ShdslSpanConfNumRepeaters
      *  hdsl2ShdslSpanConfProfile
      *  hdsl2ShdslSpanConfAlarmProfile

      Unauthorized changes to hdsl2ShdslSpanConfNumRepeaters could
      result in an hdsl2ShdslSpanInvalidNumRepeaters notification.  Note
      the discussion on hdsl2ShdslSpanInvalidNumRepeaters in the
      Notifications section above.

      Unauthorized changes to hdsl2ShdslSpanConfProfile could have an
      adverse operational effect on a span.  Reference the
      hdsl2ShdslSpanConfProfileTable discussion below.

      Unauthorized changes to hdsl2ShdslSpanConfAlarmProfile could have
      a contrary effect on notifications.  Reference the
      hdsl2ShdslEndpointAlarmConfProfileTable discussion below.

   o  hdsl2ShdslEndpointConfTable

      This table contains one object,
      hdsl2ShdslEndpointAlarmConfProfile, that supports SET operations.
      Unauthorized changes could have an undesirable notifications.
      Reference the hdsl2ShdslEndpointAlarmConfProfileTable discussion
      below.

   o  hdsl2ShdslEndpointMaintTable

      The table consists of the following objects that support SET
      operations:

      *  hdsl2ShdslMaintLoopbackConfig
      *  hdsl2ShdslMaintPowerBackoff
      *  hdsl2ShdslMaintSoftRestart

      Unauthorized changes to hdsl2ShdslMaintLoopbackConfig could
      prevent end-to-end data transfer due to an activation of a
      loopback.

      Unauthorized changes to hdsl2ShdslMaintPowerBackoff could result
      in an increased in bundle interference.

Top      Up      ToC       Page 68 
      Unauthorized changes to hdsl2ShdslMaintSoftRestart could result in
      a temporary interruption of end-to-end data transfer as the result
      of the triggering of a soft restart.

   o  hdsl2ShdslUnitMaintTable

      This table contains one object, hdsl2ShdslMaintLoopbackTimeout,
      that supports SET operations.  An unauthorized change to this
      object could result in the timeout value for loopbacks being
      increased, decreased, or disabled.

   o  hdsl2ShdslSpanConfProfileTable

      The table consists of the following objects that support SET
      operations:

      *  hdsl2ShdslSpanConfWireInterface
      *  hdsl2ShdslSpanConfMinLineRate
      *  hdsl2ShdslSpanConfMaxLineRate
      *  hdsl2ShdslSpanConfPSD
      *  hdsl2ShdslSpanConfTransmissionMode
      *  hdsl2ShdslSpanConfRemoteEnabled
      *  hdsl2ShdslSpanConfPowerFeeding
      *  hdsl2ShdslSpanConfCurrCondTargetMarginDown
      *  hdsl2ShdslSpanConfWorstCaseTargetMarginDown
      *  hdsl2ShdslSpanConfCurrCondTargetMarginUp
      *  hdsl2ShdslSpanConfWorstCaseTargetMarginUp
      *  hdsl2ShdslSpanConfUsedTargetMargins
      *  hdsl2ShdslSpanConfReferenceClock
      *  hdsl2ShdslSpanConfLineProbeEnable
      *  hdsl2ShdslSpanConfProfileRowStatus

      Setting any of the objects to an incorrect value could have an
      adverse operational effect on a span.

      Unauthorized changes to the hdsl2ShdslSpanConfWireInterface could
      result in the failure of a span to achieve activation to a state
      that would permit data flow.  For example, setting this object to
      six-wire or eight-wire operation when one of the units in the span
      only supports two-wire or four-wire operation would likely prevent
      an expected end-to-end data transfer capability.

      Unauthorized changes to hdsl2ShdslSpanConfMinLineRate or
      hdsl2ShdslSpanConfMaxLineRate could have an adverse effect on
      performance.  The range of allowable line rates could be altered
      such that the span may not be able to train to a line rate that

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      would permit any end-user data to traverse the span or the span
      could train to a line rate that is either greater than or less
      than the line rate that the provider has pledged.

      Unauthorized changes to hdsl2ShdslSpanConfPSD or
      hdsl2ShdslSpanConfTransmissionMode could have a detrimental effect
      on loop reach, performance, or spectral compatibility.

      Unauthorized changes to hdsl2ShdslSpanConfRemoteEnable could alter
      the remote management ability of units.

      Unauthorized changes to hdsl2ShdslSpanConfPowerFeeding could
      shutdown units that are expected to be fed power remotely.
      Changing the configuration such that wetting current is not
      supplied may result in corrosion of electrical contacts.

      Unauthorized changes to
      hdsl2ShdslSpanConfCurrCondTargetMarginDown,
      hdsl2ShdslSpanConfWorstCaseTargetMarginDown,
      hdsl2ShdslSpanConfCurrCondTargetMarginUp,
      hdsl2ShdslSpanConfWorstCaseTargetMarginUp, or
      hdsl2ShdslSpanConfUsedTargetMargins could result in invalid
      parameters used to determine if a data rate can be supported under
      current and worst-case noise.

      Unauthorized changes to hdsl2ShdslSpanConfReferenceClock could
      result in the selection of a clock source that might either
      prevent any data from being transferred or impair data transfer.
      In addition, an increase in CRC anomalies may be experienced.

      Unauthorized changes to hdsl2ShdslSpanConfLineProbeEnable could
      have a negative effect on selecting the optimum rate or power
      level based on current line conditions.

      Unauthorized changes to row status could result in unwanted
      profiles being created or brought into service.  Also, changes to
      the row status could result in profiles being inadvertently
      deleted or taken out of service.

   o  hdsl2ShdslEndpointAlarmConfProfileTable

      The table consists of the following objects that support SET
      operations:

      *  hdsl2ShdslEndpointThreshLoopAttenuation
      *  hdsl2ShdslEndpointThreshSNRMargin
      *  hdsl2ShdslEndpointThreshES
      *  hdsl2ShdslEndpointThreshSES

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      *  hdsl2ShdslEndpointThreshCRCanomalies
      *  hdsl2ShdslEndpointThreshLOSWS
      *  hdsl2ShdslEndpointThreshUAS
      *  hdsl2ShdslEndpointAlarmConfProfileRowStatus

      Increasing any of the threshold values could result in a
      notification being suppressed or deferred.  Setting a threshold to
      0 could result in a notification being suppressed.  Suppressing or
      deferring a notification could prevent the timely delivery of
      important diagnostic information.  Decreasing any of the threshold
      values could result in a notification being sent from the network
      falsely reporting a threshold crossing.

      Changing a threshold value could also have an impact on the amount
      of notifications the agent sends.  This document adds a paragraph,
      which was not in RFC 3276 [RFC3276], to the Notifications section
      that provides general guidance to the rate limiting of
      notifications.  Agent implementations not adhering to the rate-
      limiting desires could result in notifications being generated at
      an uncontrolled rate.  Unauthorized changes to a threshold value
      could result in an undesired notification rate.

      Unauthorized changes to row status could result in unwanted
      profiles being created or brought into service.  Also, changes to
      the row status could result in profiles being inadvertently
      deleted or taken out of service.

   Some of the readable objects in this MIB module (i.e., objects with a
   MAX-ACCESS other than not-accessible) may be considered sensitive or
   vulnerable in some network environments.  It is thus important to
   control even GET and/or NOTIFY access to these objects and possibly
   to even encrypt the values of these objects when sending them over
   the network via SNMP.  These are the tables and objects and their
   sensitivity/vulnerability:

   o  hdsl2ShdslInventoryTable

      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.

      *  hdsl2ShdslInvVendorID
      *  hdsl2ShdslInvVendorModelNumber
      *  hdsl2ShdslInvVendorSerialNumber
      *  hdsl2ShdslInvVendorEOCSoftwareVersion
      *  hdsl2ShdslInvStandardVersion
      *  hdsl2ShdslInvVendorListNumber

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      *  hdsl2ShdslInvVendorIssueNumber
      *  hdsl2ShdslInvVendorSoftwareVersion
      *  hdsl2ShdslInvEquipmentCode
      *  hdsl2ShdslInvVendorOther
      *  hdsl2ShdslInvTransmissionModeCapability

   SNMP versions prior to SNMPv3 did not include adequate security.
   Even if the network itself is secure (for example by using IPsec),
   even then, there is no control as to who on the secure network is
   allowed to access and GET/SET (read/change/create/delete) the objects
   in this MIB module.

   It is RECOMMENDED that implementers consider the security features as
   provided by the SNMPv3 framework (see [RFC3410], Section 8),
   including full support for the SNMPv3 cryptographic mechanisms (for
   authentication and privacy).

   Further, deployment of SNMP versions prior to SNMPv3 is NOT
   RECOMMENDED.  Instead, it is RECOMMENDED to deploy SNMPv3 and to
   enable cryptographic security.  It is then a customer/operator
   responsibility to ensure that the SNMP entity giving access to an
   instance of this MIB module is properly configured to give access to
   the objects only to those principals (users) that have legitimate
   rights to indeed GET or SET (change/create/delete) them.

6.  Acknowledgements

   The authors are deeply grateful to the authors of the ADSL LINE MIB
   (RFC 2662 [RFC2662]), Gregory Bathrick and Faye Ly, as much of the
   text and structure of this document originate in their documents.

   The authors are also grateful to the authors of FR MFR MIB (RFC 3020
   [RFC3020]), 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.

   The authors are extremely thankful to Bert Wijnen, Randy Presuhn, and
   C. M. Heard for their extensive review and the many suggestions they
   provided.

Top      Up      ToC       Page 72 
   Other contributions were received from the following:

         Matt Beanland (Extel Communications)
         Philip Bergstresser (Adtran)
         Steve Blackwell (Centillium)
         Umberto Bonollo (NEC Australia)
         John Egan (Metalink BroadBand)
         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)
         Jim Wilson (for Mindspeed)
         Michael Wrobel (Memotec)

7.  References

7.1.  Normative References

   [G.991.2]  Blackwell, S., "Single-Pair High-Speed Digital Subscriber
              Line (SHDSL) Transceivers", ITU-T G.991.2, December 2003.

   [RFC2119]  Bradner, S., "Key words for use in RFCs to Indicate
              Requirement Levels", BCP 14, RFC 2119, March 1997.

   [RFC2578]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Structure of Management Information Version 2 (SMIv2)",
              STD 58, RFC 2578, April 1999.

   [RFC2579]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Textual Conventions for SMIv2", STD 58, RFC 2579, April
              1999.

   [RFC2580]  McCloghrie, K., Perkins, D., and J. Schoenwaelder,
              "Conformance Statements for SMIv2", STD 58, RFC 2580,
              April 1999.

   [RFC2863]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group
              MIB", RFC 2863, June 2000.

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   [RFC3411]  Harrington, D., Presuhn, R., and B. Wijnen, "An
              Architecture for Describing Simple Network Management
              Protocol (SNMP) Management Frameworks", STD 62, RFC 3411,
              December 2002.

   [RFC3593]  Tesink, K., "Textual Conventions for MIB Modules Using
              Performance History Based on 15 Minute Intervals", RFC
              3593, September 2003.

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

7.2.  Informative References

   [RFC2662]  Bathrick, G. and F. Ly, "Definitions of Managed Objects
              for the ADSL Lines", RFC 2662, August 1999.

   [RFC3020]  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.

   [RFC3276]  Ray, B. and R. Abbi, "Definitions of Managed Objects for
              High Bit-Rate DSL - 2nd generation (HDSL2) and Single-Pair
              High-Speed Digital Subscriber Line (SHDSL) Lines
              Processing", RFC 3276, May 2002.

   [RFC3410]  Case, J., Mundy, R., Partain, D., and B. Stewart,
              "Introduction and Applicability Statements for Internet-
              Standard Management Framework", RFC 3410, December 2002.

   [RFC3418]  Presuhn, R., "Management Information Base (MIB) for the
              Simple Network Management Protocol (SNMP)", STD 62, RFC
              3418, December 2002.

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Authors' Addresses

   Clay Sikes
   Zhone Technologies, Inc.
   Florida Design Center
   8454 126th Ave. N.
   Largo, FL  33773
   US

   Phone: +1 727 530 8257
   Fax:   +1 727 532 5698
   EMail: csikes@zhone.com


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

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


   Rajesh Abbi
   Alcatel USA
   2301 Sugar Bush Road
   Raleigh, NC  27612
   US

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

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Full Copyright Statement

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