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RFC 2662 - Definitions of Managed Objects for the ADSL Lines


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Network Working Group                                        G. Bathrick
Request for Comments: 2662                      AG Communication Systems
Category: Standards Track                                          F. Ly
                                                Copper Mountain Networks
                                                             August 1999

           Definitions of Managed Objects for the ADSL Lines

Status of this Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

Copyright Notice

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

Table of Contents

    1.  Abstract  ..............................................   1
    2.  The SNMP Network Management Framework  .................   2
    3.  Object Definitions .....................................   3
    4.  Relationship of the ADSL LINE MIB with standard MIBs ...   3
    5.  Conventions used in the MIB ............................   7
    6.  Conformance and Compliance .............................  17
    7.  Definitions ............................................  17
    8.  Acknowledgments ........................................ 110
    9.  References ............................................. 111
   10.  Security Considerations ................................ 113
   11.  Intellectual Property Notice ........................... 114
   12.  Authors' Addresses ..................................... 114
   13.  Full Copyright Statement ............................... 115

1.  Abstract

   This document defines a standard SNMP MIB for ADSL lines based on the
   ADSL Forum standard data model [9].  The ADSL standard describes
   ATU-C and ATU-R as two sides of the ADSL line.  This MIB covers both
   ATU-C and ATU-R agent's perspectives.  Each instance defined in the

   MIB represents a single ADSL line.

   It should be noted that the ADSL Forum Network Management Working
   Group provided input towards the content of this document.  See the
   Acknowledgement Section for a list of individuals who made this
   document possible.

2.  The SNMP Network Management Framework

   The SNMP Management Framework presently consists of five major
   components:

   o  An overall architecture, described in RFC 2571 [13].

   o  Mechanisms for describing and naming objects and events for the
      purpose of management.  The first version of this Structure of
      Management Information (SMI) is called SMIv1 and described in STD
      16, RFC 1155 [14], STD 16, RFC 1212 [15] and RFC 1215 [16].  The
      second version, called SMIv2, is described in STD 58, RFC 2578
      [1], STD 58, RFC 2579 [2] and STD 58, RFC 2580 [17].

   o  Message protocols for transferring management information.  The
      first version of the SNMP message protocol is called SNMPv1 and
      described in STD 15, RFC 1157 [7].  A second version of the SNMP
      message protocol, which is not an Internet standards track
      protocol, is called SNMPv2c and described in RFC 1901 [18] and RFC
      1906 [19].  The third version of the message protocol is called
      SNMPv3 and described in RFC 1906 [19], RFC 2572 [20] and RFC 2574
      [21].

   o  Protocol operations for accessing management information.  The
      first set of protocol operations and associated PDU formats is
      described in STD 15, RFC 1157 [7].  A second set of protocol
      operations and associated PDU formats is described in RFC 1905
      [8].

   o  A set of fundamental applications described in RFC 2573 [22] and
      the view-based access control mechanism described in RFC 2575
      [23].

   This document specifies a MIB module that is compliant to the SMIv2.
   A MIB conforming to the SMIv1 can be produced through the appropriate
   translations.  The resulting translated MIB must be semantically
   equivalent, except where objects or events are omitted because no
   translation is possible (e.g., use of Counter64).  Some machine
   readable information in SMIv2 will be converted into textual
   descriptions in SMIv1 during the translation process.  However, this
   loss of machine readable information is not considered to change the
   semantics of the MIB.

3.  Object Definitions

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the extended subset of Abstract Syntax Notation One
   (ASN.1) defined in the SMI.  In particular, each object type is named
   by an OBJECT IDENTIFIER, an administratively assigned name.  The
   object type together with an object instance serves to uniquely
   identify a specific instantiation of the object.  For human
   convenience, we often use a textual string, termed the descriptor, to
   also refer to the object type.

4.  Relationship of the ADSL LINE MIB with standard MIBs

   This section outlines the relationship of ADSL Line MIB with other
   MIBs described in RFCs and in their various degrees of
   "standardization".

4.1  Use of the IfTable

   The ADSL LINE MIB specifies the detailed attributes of a data
   interface.  As such, it needs to integrate with IF-MIB [5].  The IANA
   has assigned the following ifType(s) relative to ADSL:

       IANAifType ::= TEXTUAL-CONVENTION

           . . .

       SYNTAX INTEGER {

                . . .

           adsl(94),    -- Asymmetric Digital Subscriber Loop

                . . .

           adslInterleave(124),    -- ADSL Interleaved Channel
           adslFast(125),          -- ADSL Fast Channel

                . . .          }

   Interfaces of each of these types are modeled by this document.  Most
   MIB tables in this document represent information of one of these
   interface types and are indexed by ifIndex.  Remaining are `profile'
   tables which may be accessed by the profileIndex.  This is explained
   in more detail in section 5.4 Profiles.

4.1.1  ADSL Interface Types

   As shown below, three ADSL interface types are defined in this
   document, namely physical, interleaved channel, and fast channel.
   The physical interface represents characteristics of the physical
   media associated with both the ATUC and ATUR.  The interleaved and
   fast channel interface represent the characteristics of the two types
   of ADSL channels.

   For each ADSL Line, a physical interface always exists.   Depending
   on which ADSL operational configuration is present (as listed in
   Figure 5), the channel interfaces (fast or interleaved) may or may
   not exist.

               ______                      ______
              |      |____________________|      |
              | ATUC |                    | ATUR |
              |      |____________________|      |
              |______|                    |______|

                 | <----- physical --------> |

                 | <--- fast channel ------> |

                 | <- interleaved channel -> |

                      Figure 1: ADSL Model

4.1.2  Use of IF-MIB  (Interface MIB RFC 2233) [5]

   The following attributes are part of the required
   ifGeneralInformationGroup object group specified in RFC 2233 [5], and
   are not duplicated in the ADSL MIB.  Keep in mind that these objects
   apply to the agent's view of the line.

              ifTable Object    Use for ADSL
   ==================================================================
              ifIndex           Interface index.

              ifDescr           See interfaces MIB [5]

              ifType            physical    - adsl(94)
                                fast        - adslFast(125)
                                interleaved - adslInterleave(124)

              ifSpeed           Transmit rate from the perspective
                                of the agent.

                                physical      - line rate
                                fast          - channel rate
                                interleaved   - channel rate

              ifPhysAddress     This object should have an octet string
                                with zero length.

              ifAdminStatus     See interfaces MIB [5]

              ifOperStatus      See interfaces MIB [5]

                                Supplemented by adslAturCurrStatus and
                                adslAturCurrStatus

              ifLastChange      See interfaces MIB [5]

              ifName            See interfaces MIB [5]

              ifLinkUpDownTrapEnable   See interfaces MIB [5]

                                Default set as follows:

                                physical      - enabled(1)
                                fast          - disabled(2)
                                interleaved   - disabled(2)

              ifHighSpeed       Speed of line in Mega-bits per second
                                (ifSpeed/1,000,000)

              ifConnectorPresent See interfaces MIB [5]

                                Default set as follows:

                                physical      - true(1)
                                fast          - false(2)

                                interleaved   - false(2)

              ifAlias           See interfaces MIB [5]

              ifTableLastChange See interfaces MIB [5]

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

        Figure 2: Use of ifTable Objects: ifGeneralInformationGroup

   Use of the ifStackTable to associate the entries for physical, fast,
   interleaved channels, and higher layers (e.g., ATM) is shown below in
   figure 3.  Use of ifStackTable is necessary, because configuration
   information is stored in profile tables associated with the
   physical-layer ifEntry only.  The channels' ifEntrys need the
   ifStackTable to find their associated physical-layer entry and thus
   their configuration parameters.  (See Profile section, 5.4).

               ______       (ifEntry=j)        ______
              |      |      fast channel      |      |
              |      |________________________|      |
              |      |        and/or          |      |
              |      |                        |      |
              |      |     (ifEntry=k)        |      |
              |      |   interleaved channel  |      |
              |      |________________________|      |
              | ATUC |                        | ATUR |
              |      |                        |      |
              |      |     (ifEntry=i)        |      |
              |      |      physical          |      |
              |      |________________________|      |
              |______|                        |______|

               Figure 3: Use of ifStackTable (part 1)

   The ifStackTable is then used to show the relationships between the
   various ADSL interfaces, as illustrated below in figure 4.

                     HigherLayer   LowerLayer
                    --------------------------
                         j             i
                         k             i

                  Figure 4: Use of ifStackTable (part 2)

   The ifRcvAddressTable is not applicable for ADSL interfaces.

4.2  Relationship with RFC 2037 [25]

   Implementation of the Entity MIB [25] is optional.  It in no way
   alters the information required in the adslLineMib, nor does it alter
   the relationship with IF-MIB.

   The Entity MIB introduces a standardized way of presenting the
   components of complex systems, such as a Digital Subscriber Line
   Access Multiplexer (DSLAM), that may contain multiple racks, shelves,
   line cards, and/or ports.   The Entity MIB's main goal is to present
   these system components, their containment relationship, and mapping
   information with other MIBs such as the Interface MIB and the
   adslLineMib.

   If ATU-C agent is implemented, the Entity MIB should include entities
   for the ATU-C in the entPhysicalTable.  The MIB's
   entAliasMappingTable would contain mapping information identifying
   the 'ifIndex' object associated with each ATU-C.  However, if ATU-R
   agent is implemented, the Entity MIB should include entities for the
   ATU-R in the entPhysicalTable.  In this case, the MIB's
   entAliasMappingTable would  contain mapping information identifying
   the 'ifIndex' object associated with each ATU-R.

   Also associating the relationship between the ifTable and Entity MIB,
   the entPhysicalTable contains an 'entPhysicalName' object, which
   approximates the semantics of the 'ifName' object from the Interface
   MIB.

5.  Conventions used in the MIB

5.1  Naming Conventions

   A. Atuc/Atur are used for the ATU-C and ATU-R.  In other RFCs, these
      are sometimes referred to as the Near End (Ne) and Far End (Fe)
      respectively, but not in this document.

   B. The terms, "transmit" and "receive", are from the perspective of
      the corresponding table's end of the line.  For example, in the
      case of Fast channels, adslAtucChanConfFastMaxTxRate defines the
      "downstream" rate, while adslAturChanConfFastMaxTxRate defines the
      "upstream" rate for a particular channel.

   C. There are two possible channels: fast, and interleaved.  None, one
      or both may be implemented on a particular ADSL Line.  Figure 5
      illustrates all possible operational configurations.

   D. Lof, Lol, Los, Lpr mean Loss of Framing, Link, Signal, and Power,
      respectively.  Lpr is used by T1E1, so it is used for consistency
      (rather than Lop).

      A Loss of Link condition is declared at the ATU-C if a Loss of
      Signal is not preceded by a `dying-gasp' message from the ATU-R.
      Note that Loss of Link is only supported by the ATU-C.

   E. ES means errored second. An Errored Second is any second
      containing one or more CRC anomaly, or one or more Los(s) or
      Severely Errored Frame (Sef) defect(s).

   F. A "block" is a physical-layer `data buffer' over which CRCs are
      calculated.  For example, in DMT, the block is defined as the ADSL
      superframe.  The block duration is 250 micro-seconds so the block
      length in bytes, as defined in adslAtu*ChanCrcBlockLength, varies
      with data rate.  See Line Code Specific MIBs [11] [12] for more
      line code specific information.

   G. Atn means Attenuation, Psd is Power Spectral Density and Snr is
      Signal to Noise Ratio.

   H. LCS means line code specific, e.g.,

      o DMT = Discrete MultiTone

      o CAP = Carrierless Amplitude and Phase modulation and

      o QAM = Quadrature Amplitude Modulation

   I. Vendor (in the Inventory objects) refers to the manufacturer of
      the ATU-C or ATU-R assembly, not the modem chip vendor. When in
      doubt, use the manufacturer of the smallest field replaceable unit
      (e.g., stand-alone modem box, plug-in board).

   J. RADSL - Rate Adaptive Asymmetric Digital Subscriber Loop

5.2  Structure

   The MIB has multiple parallel tables.  There are tables for:

      o line -  common attributes

      o atuc and atur status

      o atuc and atur performance

         - Current and up to 96 buckets of 15 min performance history

         - Current and Previous 1-day bucket performance history

      o profiles - configuration parameters and alarm parameters

   There are separate tables for Physical and Channel layers.  Since
   their attributes are similar, only one set of "channel" tables are
   defined to be used for both fast and interleaved channels. The
   corresponding ifType gives the proper interpretation for that
   ifEntry.

   It is intented that Line Code Specific MIBs be located under
   adslLCSMib.  These MIBs will be defined in separate modules.

   There could have been fewer tables by combining the ATU-C and ATU-R
   information into shared tables. However, the tables are more easily
   read when there are two identical sets of data.

   The figure below lists the five possible ADSL operational
   configurations. (indicated by the value of the adslLineType).  In all
   configurations, the physical line interface entry will exist.
   However, the existence of the ADSL channel varies in each case, as
   shown below.

       Table                         Phys     Fast  Interleaved
   ___________________________________________________________
     No Channels (1)               |  Y    |        |        |
     Fast Only (2)                 |  Y    |   Y    |        |
     Interleaved Only (3)          |  Y    |        |   Y    |
     Fast or Interleaved (4)       |  Y    |   Y    |   Y    |
     Fast and Interleaved (5)      |  Y    |   Y    |   Y    |

              Figure 5: ADSL Operational configurations

   NOTE: In (4), channel exists of either Fast or Interleaved type, but
   not both.   The Manager may select the type of channel to be used.

   Depending on which operation configuration exists, some or all ADSL
   MIB tables could be supported, as shown in below.  See Conformance
   Statements for more information on which objects are mandatory.

       Table                         Phys     Fast  Interleaved
   ___________________________________________________________
     adslLineTable                  |  Y    |        |        |
     adslAtucPhysTable              |  Y    |        |        |
     adslAturPhysTable              |  Y    |        |        |
     adslAtucChanTable              |       |   Y    |   Y    |
     adslAturChanTable              |       |   Y    |   Y    |
     adslAtucPerfDataTable          |  Y    |        |        |
     adslAturPerfDataTable          |  Y    |        |        |
     adslAtucIntervalTable          |  Y    |        |        |
     adslAturIntervalTable          |  Y    |        |        |
     adslAtucChanPerfDataTable      |       |   Y    |   Y    |
     adslAturChanPerfDataTable      |       |   Y    |   Y    |
     adslAtucChanIntervalTable      |       |   Y    |   Y    |
     adslAturChanIntervalTable      |       |   Y    |   Y    |

   Figure 6: Use of ADSL MIB Tables with various ifIndex values

   NOTE: The adslLineConfProfileTable and adslLineAlarmConfProfileTable
   will be present for all scenarios.  See Profile Section of this
   document for implementation details such as profile creation,
   assignment, and indexing.

5.2.1 Structure of Conformance Groups

   The MIB is organized to cover both ends of the ADSL line, ATU-C and
   ATU-R.  Objects defined can be categorized into two groups:  the
   ATU-C group which provides objects that are supported by ATU-C agents
   and the ATU-R group which provides objects that are supported by
   ATU-R agents.  These two groups are defined by the conformance
   section of the MIB.  All objects defined in the MIB module are
   supported by the ATU-C agent and only portions of the objects are
   supported by the ATU-R agent.  Figure 7 lists all tables/objects that
   are supported by the ATU-R agent.

              Table                         Objects
             _______________________________________________________
              adslLineTable                 adslLineCoding
              adslAtucPhysTable             adslAtucInvVendorID
                                            adslAtucInvVersionNumber
                                            adslAtucCurrStatus (Partial)
                                            adslAtucCurrOutputPwr
                                            adslAtucCurrAttainableRate
              adslAturPhysTable             all are supported
              adslAtucChanTable             all except
                                            adslAtucChanCrcBlockLength
                                            are supported
              adslAtucPerfDataTable         all except
                                            adslAtucPerfLols,
adslAtucPerfLprs
                                            adslAtucPerfCurr15MinLols,
                                            adslAtucPerfCurr15MinLprs,
                                            adslAtucPerfCurr1DayLols,
                                            adslAtucPerfCurr1DayLprs,
                                            adslAtucPerfPrev1DayLols and
                                            adslAtucPerfPrev1DayLprs
                                            are supported
              adslAturPerfDataTable         all are supported
              adslAtucIntervalTable         adslAtucIntervalLofs
                                            adslAtucIntervalLoss
                                            adslAtucIntervalESs
                                            adslAtucIntervalInits
                                            adslAtucIntervalValidData
              adslAturIntervalTable         all are supported
              adslAtucChanPerfDataTable     all are supported
              adslAturChanPerfDataTable     all are supported
              adslAtucChanIntervalTable     all are supported
              adslAturChanIntervalTable     all are supported
              adslLineConfProfileTable      not supported
              adslLineAlarmConfProfileTable all are supported except
                                            adslAtucThresh15MinLols
                                            and adslAtucThresh15MinLprs
   --------------------------------------------------------------------

     Figure 7: MIB Tables and Objects Supported by the ATU-R Agent

   All traps supported by the ATU-R agent are also listed:

                 adslAtucPerfLofsThreshTrap
                 adslAtucPerfLossThreshTrap
                 adslAtucPerfESsThreshTrap
                 adslAtucRateChangeTrap
                 adslAturPerfLofsThreshTrap
                 adslAturPerfLossThreshTrap
                 adslAturPerfLprsThreshTrap
                 adslAturPerfESsThreshTrap
                 adslAturRateChangeTrap

5.3  Counters, Interval Buckets and Thresholds

   For physical-level ES, Los, Lof, Lol, Lpr and line initialization
   attempts, there are event counters, current 15-minute and one (up to
   96) 15-minute history bucket(s) of "interval-counters", as well as
   current and previous 1-day interval-counters.  Each physical-layer
   current 15-minute event bucket has threshold trap.

   At the channel level, there are counters for total received blocks,
   received-and-corrected blocks, received-but-uncorrectable blocks, and
   transmitted blocks. There are the same set of 15-minute and 1-day
   buckets as at the physical-layer.

   There is no requirement for an agent to ensure fixed relationship
   between the start of a fifteen minute and any wall clock; however
   some implementations may align the fifteen minute intervals with
   quarter hours.  Likewise, an implementation may choose to align one
   day intervals with start of a day.

   Separate tables are provided for the 96 interval-counters. They are
   indexed by {ifIndex, AdslAtu*IntervalNumber}.

   Counters are not reset when an ATU-C or ATU-R is reinitialized, only
   when the agent is reset or reinitialized (or under specific request
   outside the scope of this MIB).

   The 15-minute event counters are of type PerfCurrentCount and
   PerfIntervalCount.  The 1-day event counters are of type
   AdslPerfCurrDayCount and AdslPerfPrevDayCount. Both 15-minute and 1-
   day time elapsed counters are of type AdslPerfTimeElapsed.

5.4  Profiles

   As a managed node can handle a large number of ATU-Cs (e.g., hundreds
   or perhaps thousands of ADSL lines), provisioning every parameter on
   every ATU-C may become burdensome.  In response, two MIB tables have
   been created to define ADSL equipment configuration data profiles, as
   well as a mechanism to associate the equipment to these profiles.

   Profile tables may be implemented in one of two ways, but not
   simultaneously:

      o  MODE-I: Dynamic Profiles - one profile shared by one or
         multiple ADSL lines.

      o  MODE-II: Static Profiles - one profile per ADSL physical line
         always.

5.4.1  MODE-I : Dynamic Profiles

   Implementations using this mode will enable the manager to
   dynamically create and delete profiles as needed.  The index of the
   profile is an locally-unique administratively assigned name for the
   profile having the textual convention `SnmpAdminString' (RFC2571
   [13]).

   One or more ADSL lines may be configured to share parameters of a
   single profile (e.g., adslLineConfProfileName = `silver') by setting
   its adslLineConfProfile objects to the index value of this profile.
   If a change is made to the profile, all lines that refer to it will
   be re-configured to the changed parameters.  Before a profile can be
   deleted or taken out of service it must be first unreferenced from
   all associated lines.

   This figure below shows an example of how this mode can be
   implemented.  In the example, ADSL lines `1' and `x' share the
   configuration of the `silver' profile, while line `2' uses the
   `platinum' profile.  The `gold' profile has no lines associated with
   it.

   ADSL    ifIndex      ifTable                       Configuration Line
   Profile Table
   __________________________________________________________________

   1         i1         ADSL Line --           ---> Platinum Profile
             j1         Fast Chan    |        |
             k1         Int Chan     |        |
                                     |        ^
                                     v        |     Gold Profile

   2         i2         ADSL Line ------->----
             j2         Fast Chan    |
             k2         Int Chan     |
                                     |
                                     |
                                     |
                                     v

   x         ix         ADSL Line    ------>------> Silver Profile
             jx         Fast Chan  --------------->
             kx         Int Chan
   __________________________________________________________________

               Figure 8: Use of Dynamic Profiles: MODE-I

   In the figure above, note that three interface entries of an ADSL
   line, physical, fast channel, and interleaved channel, are
   represented by `i', `j', and `k'.  Only the physical-layer entry `i'
   contains an adslLineTable entry, therefore only those entries contain
   pointers to the adslLineConfProfileTable.  The ifStackTable (see
   rfc2233 [5]) can be used to link the channel entries to the
   corresponding physical-layer entry to get the channel's configuration
   parameters.  See figure 4 for use of the ifStackTable.

   The same characteristics and mechanisms are present for the alarm
   profile type. There is no requirement that its index be the same as
   the configuration profile.

   Implementations of this mode, must provide a default profile whose
   name is `DEFVAL' for each profile type: Configuration and Alarm.  The
   values of the associated parameters will be vendor specific unless
   otherwise indicated in this document.  Before a line's profiles have
   been set, these profiles will be automatically used by setting
   adslLineConfProfile and adslLineAlarmConfProfile to `DEFVAL'.

   In this mode, profiles are created, assigned, and deleted dynamically
   using these four objects: adslLineConfProfile,
   adslLineConfProfileRowStatus, adslLineAlarmConfProfile,  and
   adslLineAlarmConfProfileRowStatus.

5.4.2  MODE-II : Static Profiles

   Implementations with this mode will automatically create a profile
   one-for-one with each ADSL line physical entry.  The name of this
   profile is a system generated read-only object whose value is
   equivalent to the index of the physical line.  The Agent will not
   allow a Manager to create/delete profiles in this mode.  Therefore,
   adslLineConfProfile, adslLineConfProfileRowStatus,
   adslLineAlarmConfProfile, and adslLineAlarmConfProfileRowStatus
   objects have minimal value in this mode and are read-only.

   The figure below shows an example of this mode. In the example, ADSL
   lines `1', `2', and `x' each have their own profiles.

   ADSL    ifIndex      ifTable                       Configuration Line
   Profile Table
   __________________________________________________________________

   1         i1         ADSL Line      ------------>  Profile
             j1         Fast Chan
             k1         Int Chan

   2         i2         ADSL Line      ------------>  Profile
             j2         Fast Chan

             k2         Int Chan

   x         ix         ADSL Line      ------------>  Profile
             jx         Fast Chan
             kx         Int Chan
   __________________________________________________________________

                Figure 9: Use of Static Profiles: MODE II

5.5  Traps

   These SNMP traps are required: coldStart / warmStart (per [6]) --
   which are per agent (e.g., per DSLAM in such a device), and linkUp /
   linkDown (per [5]) -- which are per interface (i.e., ADSL line).
   Note: RFC 2233 [5] recommends that linkUp / linkDown only be used at
   a physical-layer ifEntry, as discussed above.

   A linkDown trap is generated whenever any of Lof, Los, Lol, Loss of
   Signal Quality, or Lpr events occurs.  At this operational point, a
   manager can use adslAtu*CurrStatus for additional detailed
   information. The corresponding linkUp trap is sent when all link
   failure conditions are cleared.

   The traps defined in this MIB are for initialization failure, rate
   change, and for the threshold crossings associated with the following
   events: Lofs, Lols, Loss, Lprs, and ESs.  Each threshold has its own
   enable/threshold value. When that value is 0, the trap is disabled.

   The current status objects (adslAtu*CurrStatus) indicate, through a
   bitmask, all outstanding error conditions or that the line is
   operational.  Note that each object claims to represent the status of
   the modem at that end of the line.  However, since the SNMP agent
   likely co-resides with only one end of the line, the corresponding
   far-end current status object may be incomplete. For example, when
   there are errors on the line, the far-end ATU may not be able to
   correctly report this condition. Therefore, not all conditions are
   included in its current status.

   A threshold trap occurs whenever the corresponding current 15-minute
   interval error counter becomes equal and/or exceeds to the threshold
   value.  One trap will be sent per interval per interface. Since the
   current 15-minute counter are reset to 0 every 15 minutes, if the
   condition persists, the trap may recur as often as every 15 minutes.
   For example, to get a trap whenever a "loss of" event occurs (but at
   most once every 15 minutes), set the corresponding "Thresh15Min" to
   1.  The agent will generate a trap when the event originally occurs.

   Note that the NMS will get a linkDown trap, as well, if enabled.  At
   the beginning of the next 15 minute interval, the counter is reset.
   When the first second goes by and the event occurs, the current
   interval bucket will be 1, which equals the threshold and the trap
   will be sent again.

   The rate change trap is invoked when the transmit rate on a channel
   either increases by adsl(x)Thresh(y)RateUp or decreases by
   adsl(x)Thresh(y)RateDown. The trap is per direction:(x) == Atuc or
   Atur, and per channel: (y) == Fast or Interleave. In other words, the
   trap is sent whenever the rate changes in either direction on either
   channel and:

                CurrTxRate >= PrevTxRate plus ThreshRateUp

                                    or

               CurrTxRate <= PrevTxRate minus ThreshRateDown

   No trap is sent on initialization.

   It can be disabled by setting the Up (and/or) Down threshold rates to
   0.

   The PrevTxRate object is set to the current value at initialization
   and when a trap is sent.  Thus rate changes are cumulative until the
   total change reaches the threshold.

6.  Conformance and Compliance

   See the conformance and compliance statements within the information
   module.

7.  Definitions

   ADSL-TC-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       transmission,
       MODULE-IDENTITY, Gauge32            FROM SNMPv2-SMI
       TEXTUAL-CONVENTION                  FROM SNMPv2-TC;

   adsltcmib MODULE-IDENTITY

   LAST-UPDATED "9908190000Z"

   ORGANIZATION "IETF ADSL MIB Working Group"

   CONTACT-INFO
       "
       Gregory Bathrick
       AG Communication Systems
       A Subsidiary of Lucent Technologies
       2500 W Utopia Rd.
       Phoenix, AZ 85027 USA
       Tel: +1 602-582-7679
       Fax: +1 602-582-7697
       E-mail: bathricg@agcs.com

       Faye Ly
       Copper Mountain Networks
       Norcal Office
       2470 Embarcadero Way
       Palo Alto, CA 94303
       Tel: +1 650-858-8500
       Fax: +1 650-858-8085
       E-Mail: faye@coppermountain.com

       IETF ADSL MIB Working Group (adsl@xlist.agcs.com)
       "
       DESCRIPTION
           "The MIB module which provides a ADSL
           Line Coding Textual Convention to be used
           by ADSL Lines."

       --  Revision history
       REVISION     "9908190000Z"  -- 19 August 1999, midnight
       DESCRIPTION  "Initial Version, published as RFC 2662"

       ::= { transmission 94 2 } -- adslMIB 2

       AdslLineCodingType ::= TEXTUAL-CONVENTION
           STATUS       current
           DESCRIPTION
               "This data type is used as the syntax for the ADSL
               Line Code."
           SYNTAX  INTEGER {
               other(1),-- none of the following
               dmt (2), -- Discrete MultiTone
               cap (3), -- Carrierless Amplitude & Phase modulation
               qam (4)  -- Quadrature Amplitude Modulation
           }

       AdslPerfCurrDayCount ::= TEXTUAL-CONVENTION
           STATUS  current
           DESCRIPTION
               "A counter associated with interface performance
               measurements in a current 1-day (24 hour) measurement
               interval.

               The value of this counter starts at zero at the
               beginning of an interval and is increased when
               associated events occur, until the end of the
               1-day interval.  At that time the value of the
               counter is stored in the previous 1-day history
               interval, if available, and the current interval
               counter is restarted at zero.

               In the case where the agent has no valid data available
               for this interval the corresponding object
               instance is not available and upon a retrieval
               request a corresponding error message shall be
               returned to indicate that this instance does
               not exist (for example, a noSuchName error for
               SNMPv1 and a noSuchInstance for SNMPv2 GET
               operation)."

            SYNTAX  Gauge32

       AdslPerfPrevDayCount ::= TEXTUAL-CONVENTION
           STATUS  current
           DESCRIPTION
               "A counter associated with interface performance
               measurements during the most previous 1-day (24 hour)
               measurement interval.  The value of this counter is
               equal to the value of the current day counter at
               the end of its most recent interval.

               In the case where the agent has no valid data available
               for this interval the corresponding object
               instance is not available and upon a retrieval
               request a corresponding error message shall be
               returned to indicate that this instance does
               not exist (for example, a noSuchName error for
               SNMPv1 and a noSuchInstance for SNMPv2 GET
               operation)."
           SYNTAX  Gauge32

       AdslPerfTimeElapsed ::= TEXTUAL-CONVENTION
           STATUS current
           DESCRIPTION
               "The number of seconds that have elapsed since
               the beginning of the current measurement period.
               If, for some reason, such as an adjustment in the
               system's time-of-day clock, the current interval
               exceeds the maximum value, the agent will return
               the maximum value."
           SYNTAX  Gauge32

   END

   ADSL-LINE-MIB DEFINITIONS ::= BEGIN

   IMPORTS
       MODULE-IDENTITY, OBJECT-TYPE,
       Counter32, Gauge32,
       NOTIFICATION-TYPE,
       transmission, Unsigned32          FROM SNMPv2-SMI
       RowStatus,
       TruthValue, VariablePointer       FROM SNMPv2-TC
       MODULE-COMPLIANCE, OBJECT-GROUP,
       NOTIFICATION-GROUP                FROM SNMPv2-CONF
       ifIndex                           FROM IF-MIB
       PerfCurrentCount,
       PerfIntervalCount                 FROM PerfHist-TC-MIB

       SnmpAdminString                   FROM SNMP-FRAMEWORK-MIB
       AdslPerfCurrDayCount,
       AdslPerfPrevDayCount,
       AdslPerfTimeElapsed,
       AdslLineCodingType                FROM ADSL-TC-MIB
       ;

   adslMIB MODULE-IDENTITY

   LAST-UPDATED "9908190000Z"

   ORGANIZATION "IETF ADSL MIB Working Group"

   CONTACT-INFO
       "
       Gregory Bathrick
       AG Communication Systems
       A Subsidiary of Lucent Technologies
       2500 W Utopia Rd.
       Phoenix, AZ 85027 USA
       Tel: +1 602-582-7679
       Fax: +1 602-582-7697
       E-mail: bathricg@agcs.com

       Faye Ly
       Copper Mountain Networks
       Norcal Office
       2470 Embarcadero Way
       Palo Alto, CA 94303
       Tel: +1 650-858-8500
       Fax: +1 650-858-8085
       E-Mail: faye@coppermountain.com

       (ADSL Forum input only)
       John Burgess
       Predictive Systems, Inc.
       25A Vreeland Rd.
       Florham Park, NJ 07932 USA
       Tel: +1 973-301-5610
       Fax: +1 973-301-5699
       E-mail: jtburgess@predictive.com

       IETF ADSL MIB Working Group (adsl@xlist.agcs.com)
       "

   DESCRIPTION
       "The MIB module defining objects for the management of a pair of
       ADSL modems at each end of the ADSL line.  Each such line has

       an entry in an ifTable which may include multiple modem lines.
       An agent may reside at either end of the ADSL line however the
       MIB is designed to require no management communication between
       them beyond that inherent in the low-level ADSL line protocol.
       The agent may monitor and control this protocol for its needs.

       ADSL lines may support optional Fast or Interleaved channels.
       If these are supported, additional entries corresponding to the
       supported channels must be created in the ifTable. Thus an ADSL
       line that supports both channels will have three entries in the
       ifTable, one for each physical, fast, and interleaved, whose
       ifType values are equal to adsl(94), fast(125), and
       interleaved(124), respectively. The ifStackTable is used to
       represent the relationship between the entries.

       Naming Conventions:
                 Atuc -- (ATUC) modem at near (Central) end of line
                 Atur -- (ATUR) modem at Remote end of line
                 Curr -- Current
                 Prev -- Previous
                 Atn -- Attenuation
                 ES  -- Errored Second.
                 LCS -- Line Code Specific
                 Lof -- Loss of Frame
                 Lol -- Loss of Link
                 Los -- Loss of Signal
                 Lpr -- Loss of Power
                 xxxs-- interval of Seconds in which xxx occurs
                         (e.g., xxx=Lof, Los, Lpr)
                 Max -- Maximum
                 Mgn -- Margin
                 Min -- Minimum
                 Psd -- Power Spectral Density
                 Snr -- Signal to Noise Ratio
                 Tx  -- Transmit
                 Blks-- Blocks, a data unit, see
                        adslAtuXChanCrcBlockLength
         "
         --  Revision history
         REVISION     "9908190000Z"  -- 19 August 1999, midnight
         DESCRIPTION  "Initial Version, published as RFC 2662"

   ::= { transmission 94 }

   adslLineMib OBJECT IDENTIFIER ::= { adslMIB 1 }

   adslMibObjects OBJECT IDENTIFIER ::= { adslLineMib 1 }

   -- objects
         adslLineTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslLineEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table includes common attributes describing
                 both ends of the line.  It is required for all ADSL
                 physical interfaces.  ADSL physical interfaces are
                 those ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 1 }

         adslLineEntry   OBJECT-TYPE
             SYNTAX          AdslLineEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in adslLineTable."
             INDEX           { ifIndex }
         ::= { adslLineTable 1 }

         AdslLineEntry ::=
             SEQUENCE {
             adslLineCoding           AdslLineCodingType,
             adslLineType             INTEGER,
             adslLineSpecific         VariablePointer,
             adslLineConfProfile      SnmpAdminString,
             adslLineAlarmConfProfile SnmpAdminString
             }

         adslLineCoding OBJECT-TYPE
             SYNTAX      AdslLineCodingType
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Specifies the ADSL coding type used on this
                 line."
         ::= { adslLineEntry 1 }

        adslLineType OBJECT-TYPE
             SYNTAX      INTEGER {
                 noChannel (1),        -- no channels exist
                 fastOnly (2),         -- fast channel exists only
                 interleavedOnly (3),  -- interleaved channel exists
                                       -- only
                 fastOrInterleaved (4),-- either fast or interleaved
                                       -- channels can exist, but
                                       -- only one at any time
                 fastAndInterleaved (5)-- both fast or interleaved

                                       -- channels exist
             }
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Defines the type of ADSL physical line
                 entity that exists, by defining whether and how
                 the line is channelized.  If the line is channelized,
                 the value will be other than noChannel(1).  This
                 object defines which channel type(s) are supported.

                 In the case that the line is channelized, the manager
                 can use the ifStackTable to determine the ifIndex for
                 the associated channel(s)."
         ::= { adslLineEntry 2 }

         adslLineSpecific OBJECT-TYPE
             SYNTAX      VariablePointer
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "OID instance in vendor-specific MIB. The Instance may
                 be used to determine shelf/slot/port of the ATUC
                 interface in a DSLAM."
         ::= { adslLineEntry 3 }

        adslLineConfProfile OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (1..32))
             MAX-ACCESS  read-write
             STATUS      current
             DESCRIPTION
                 "The value of this object identifies the row
                 in the ADSL Line Configuration Profile Table,
                 (adslLineConfProfileTable), which applies for this
                 ADSL line, and channels if applicable.

                 For `dynamic' mode, in the case which the
                 configuration profile has not been set, the
                 value will be set to `DEFVAL'.

                 If the implementator of this MIB has chosen not
                 to implement `dynamic assignment' of profiles, this
                 object's MIN-ACCESS is read-only."
         ::= { adslLineEntry 4 }

        adslLineAlarmConfProfile OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (1..32))
             MAX-ACCESS  read-write

             STATUS      current
             DESCRIPTION
                 "The value of this object identifies the row
                 in the ADSL Line Alarm Configuration Profile Table,
                 (adslLineAlarmConfProfileTable), which applies to this
                 ADSL line, and channels if applicable.

                 For `dynamic' mode, in the case which the
                 alarm profile has not been set, the
                 value will be set to `DEFVAL'.

                 If the implementator of this MIB has chosen not
                 to implement `dynamic assignment' of profiles, this
                 object's MIN-ACCESS is read-only."
         ::= { adslLineEntry 5 }

         adslAtucPhysTable       OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucPhysEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUC.
                 Each row contains the Physical Layer Parameters
                 table for that ATUC. ADSL physical interfaces are
                 those ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 2 }

         adslAtucPhysEntry       OBJECT-TYPE
             SYNTAX          AdslAtucPhysEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAtucPhysTable."
             INDEX           { ifIndex }
         ::= { adslAtucPhysTable 1 }

         AdslAtucPhysEntry ::=
             SEQUENCE {
             adslAtucInvSerialNumber         SnmpAdminString,
             adslAtucInvVendorID             SnmpAdminString,
             adslAtucInvVersionNumber        SnmpAdminString,
             adslAtucCurrSnrMgn              INTEGER,
             adslAtucCurrAtn                 Gauge32,
             adslAtucCurrStatus              BITS,
             adslAtucCurrOutputPwr           INTEGER,
             adslAtucCurrAttainableRate      Gauge32
             }

         -- inventory group

         --
         -- These items should describe the lowest level identifiable
         -- component, be it a stand-alone modem, a card in a rack,
         -- a child-board, etc.
         --
         adslAtucInvSerialNumber OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (0..32))
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The vendor specific string that identifies the
                 vendor equipment."
         ::= { adslAtucPhysEntry 1 }

         adslAtucInvVendorID OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (0..16))
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The vendor ID code is a copy of the binary
                 vendor identification field defined by the
                 PHY[10] and expressed as readable characters."

             REFERENCE "ANSI T1.413[10]"
         ::= { adslAtucPhysEntry 2 }

         adslAtucInvVersionNumber OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (0..16))
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The vendor specific version number sent by this ATU
                 as part of the initialization messages.  It is a copy
                 of the binary version number field defined by the
                 PHY[10] and expressed as readable characters."
             REFERENCE "ANSI T1.413[10]"
         ::= { adslAtucPhysEntry 3 }

         -- current status group
         --
         adslAtucCurrSnrMgn OBJECT-TYPE
             SYNTAX      INTEGER (-640..640)
             UNITS       "tenth dB"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Noise Margin as seen by this ATU with respect to its
                 received signal in tenth dB."

         ::= { adslAtucPhysEntry 4 }

         adslAtucCurrAtn OBJECT-TYPE
             SYNTAX      Gauge32(0..630)
             UNITS       "tenth dB"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Measured difference in the total power transmitted by
                 the peer ATU and the total power received by this ATU."
         ::= { adslAtucPhysEntry 5 }

        adslAtucCurrStatus OBJECT-TYPE
             SYNTAX      BITS {
                               noDefect(0),
                               lossOfFraming(1),
                               lossOfSignal(2),
                               lossOfPower(3),
                               lossOfSignalQuality(4),
                               lossOfLink(5),
                               dataInitFailure(6),
                               configInitFailure(7),
                               protocolInitFailure(8),
                               noPeerAtuPresent(9)
                              }
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Indicates current state of the ATUC line.  This is a
                 bit-map of possible conditions.  The various bit
                 positions are:

          0      noDefect             There no defects on the line

          1      lossOfFraming        ATUC failure due to not
                                      receiving valid frame.

          2      lossOfSignal         ATUC failure due to not
                                      receiving signal.

          3      lossOfPower          ATUC failure due to loss of
                                      power.
                                      Note: the Agent may still
                                      function.

          4      lossOfSignalQuality  Loss of Signal Quality is
                                      declared when the Noise Margin
                                      falls below the Minimum Noise

                                      Margin, or the bit-error-rate
                                      exceeds 10^-7.

          5      lossOfLink           ATUC failure due to inability
                                      to link with ATUR.

          6      dataInitFailure      ATUC failure during
                                      initialization due to bit
                                      errors corrupting startup
                                      exchange data.

          7      configInitFailure    ATUC failure during
                                      initialization due to peer
                                      ATU not able to support
                                      requested configuration

          8      protocolInitFailure  ATUC failure during
                                      initialization due to
                                      incompatible protocol used by
                                      the peer ATU.

          9      noPeerAtuPresent     ATUC failure during
                                      initialization due to no
                                      activation sequence detected
                                      from peer ATU.

                 This is intended to supplement ifOperStatus."
         ::= { adslAtucPhysEntry 6 }

         adslAtucCurrOutputPwr OBJECT-TYPE
             SYNTAX      INTEGER (-310..310)
             UNITS       "tenth dBm"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Measured total output power transmitted by this ATU.
                 This is the measurement that was reported during
                 the last activation sequence."
         ::= { adslAtucPhysEntry 7 }

         adslAtucCurrAttainableRate OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "bps"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Indicates the maximum currently attainable data rate
                 by the ATU.  This value will be equal or greater than

                 the current line rate."
         ::= { adslAtucPhysEntry 8 }

         adslAturPhysTable        OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturPhysEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUR
                 Each row contains the Physical Layer Parameters
                 table for that ATUR. ADSL physical interfaces are
                 those ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 3 }

         adslAturPhysEntry       OBJECT-TYPE
             SYNTAX          AdslAturPhysEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAturPhysTable."
             INDEX           { ifIndex }
         ::= { adslAturPhysTable 1 }

         AdslAturPhysEntry ::=
             SEQUENCE {
             adslAturInvSerialNumber         SnmpAdminString,
             adslAturInvVendorID             SnmpAdminString,
             adslAturInvVersionNumber        SnmpAdminString,
             adslAturCurrSnrMgn              INTEGER,
             adslAturCurrAtn                 Gauge32,
             adslAturCurrStatus              BITS,
             adslAturCurrOutputPwr           INTEGER,
             adslAturCurrAttainableRate      Gauge32
             }

         -- inventory group
         --
         adslAturInvSerialNumber OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (0..32))
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The vendor specific string that identifies the
                 vendor equipment."
         ::= { adslAturPhysEntry 1 }

         adslAturInvVendorID OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (0..16))
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "The vendor ID code is a copy of the binary
                 vendor identification field defined by the
                 PHY[10] and expressed as readable characters."
             REFERENCE "ANSI T1.413"
         ::= { adslAturPhysEntry 2 }

         adslAturInvVersionNumber OBJECT-TYPE
             SYNTAX      SnmpAdminString (SIZE (0..16))
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The vendor specific version number sent by this ATU
                 as part of the initialization messages.  It is a copy
                 of the binary version number field defined by the
                 PHY[10] and expressed as readable characters."
             REFERENCE "ANSI T1.413"
         ::= { adslAturPhysEntry 3 }

         -- current status group
         --
         adslAturCurrSnrMgn OBJECT-TYPE
             SYNTAX      INTEGER (-640..640)
             UNITS       "tenth dB"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Noise Margin as seen by this ATU with respect to its
                 received signal in tenth dB."
         ::= { adslAturPhysEntry 4 }

         adslAturCurrAtn OBJECT-TYPE
             SYNTAX      Gauge32(0..630)
             UNITS       "tenth dB"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Measured difference in the total power transmitted by
                 the peer ATU and the total power received by this ATU."
         ::= { adslAturPhysEntry 5 }

        adslAturCurrStatus OBJECT-TYPE
             SYNTAX     BITS {
                              noDefect(0),
                              lossOfFraming(1),
                              lossOfSignal(2),
                              lossOfPower(3),

                              lossOfSignalQuality(4)
                             }
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Indicates current state of the ATUR line.  This is a
                 bit-map of possible conditions.  Due to the isolation
                 of the ATUR when line problems occur, many state
                 conditions like loss of power, loss of quality signal,
                 and initialization errors,  can not be determined.
                 While trouble shooting ATUR, also use object,
                 adslAtucCurrStatus.  The various bit positions are:

          0      noDefect             There no defects on the line

          1      lossOfFraming        ATUR failure due to not
                                      receiving valid frame

          2      lossOfSignal         ATUR failure due to not
                                      receiving signal

          3      lossOfPower          ATUR failure due to loss of
                                      power

          4      lossOfSignalQuality  Loss of Signal Quality is
                                      declared when the Noise Margin
                                      falls below the Minimum Noise
                                      Margin, or the
                                      bit-error-rate exceeds 10^-7.

                 This is intended to supplement ifOperStatus."
         ::= { adslAturPhysEntry 6 }

         adslAturCurrOutputPwr OBJECT-TYPE
             SYNTAX      INTEGER (-310..310)
             UNITS       "tenth dBm"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Measured total output power transmitted by this ATU.
                 This is the measurement that was reported during
                 the last activation sequence."
         ::= { adslAturPhysEntry 7 }

         adslAturCurrAttainableRate OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "bps"
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "Indicates the maximum currently attainable data rate
                 by the ATU.  This value will be equal or greater than
                 the current line rate."
         ::= { adslAturPhysEntry 8 }

         adslAtucChanTable       OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucChanEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUC channel.
                 ADSL channel interfaces are those ifEntries
                 where ifType is equal to adslInterleave(124)
                 or adslFast(125)."
         ::= { adslMibObjects 4 }

         adslAtucChanEntry       OBJECT-TYPE
             SYNTAX          AdslAtucChanEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAtucChanTable."
             INDEX           { ifIndex }
         ::= { adslAtucChanTable 1 }

         AdslAtucChanEntry ::=
             SEQUENCE {
             adslAtucChanInterleaveDelay     Gauge32,
             adslAtucChanCurrTxRate          Gauge32,
             adslAtucChanPrevTxRate          Gauge32,
             adslAtucChanCrcBlockLength      Gauge32
             }

         -- current group
         --
         adslAtucChanInterleaveDelay OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "milli-seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Interleave Delay for this channel.

                 Interleave delay applies only to the
                 interleave channel and defines the mapping
                 (relative spacing) between subsequent input
                 bytes at the interleaver input and their placement

                 in the bit stream at the interleaver output.
                 Larger numbers provide greater separation between
                 consecutive input bytes in the output bit stream
                 allowing for improved impulse noise immunity at
                 the expense of payload latency.

                 In the case where the ifType is Fast(125), use
                 noSuchObject."
         ::= { adslAtucChanEntry 1 }

         adslAtucChanCurrTxRate  OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "bps"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Actual transmit rate on this channel."
         ::= { adslAtucChanEntry 2 }

         adslAtucChanPrevTxRate OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS        "bps"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The rate at the time of the last
                 adslAtucRateChangeTrap event. It is also set at
                 initialization to prevent a trap being sent.

                 Rate changes less than adslAtucThresh(*)RateDown
                 or less than adslAtucThresh(*)RateUp will not
                 cause a trap or cause this object to change.
                 (*) == Fast or Interleave.
                 See AdslLineAlarmConfProfileEntry."
         ::= { adslAtucChanEntry 3 }

         adslAtucChanCrcBlockLength OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS        "byte"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Indicates the length of the channel data-block
                 on which the CRC operates.  Refer to Line Code
                 Specific MIBs, [11] and [12] for more
                 information."
         ::= { adslAtucChanEntry 4 }

        adslAturChanTable       OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturChanEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUR channel.
                 ADSL channel interfaces are those ifEntries
                 where ifType is equal to adslInterleave(124)
                 or adslFast(125)."
         ::= { adslMibObjects 5 }

         adslAturChanEntry       OBJECT-TYPE
             SYNTAX          AdslAturChanEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAturChanTable."
             INDEX           { ifIndex }
         ::= { adslAturChanTable 1 }

         AdslAturChanEntry ::=
             SEQUENCE {
             adslAturChanInterleaveDelay     Gauge32,
             adslAturChanCurrTxRate          Gauge32,
             adslAturChanPrevTxRate          Gauge32,
             adslAturChanCrcBlockLength      Gauge32
             }

         -- current group
         --
         adslAturChanInterleaveDelay OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "milli-seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Interleave Delay for this channel.

                 Interleave delay applies only to the
                 interleave channel and defines the mapping
                 (relative spacing) between subsequent input
                 bytes at the interleaver input and their placement
                 in the bit stream at the interleaver output.
                 Larger numbers provide greater separation between
                 consecutive input bytes in the output bit stream
                 allowing for improved impulse noise immunity at
                 the expense of payload latency.

                 In the case where the ifType is Fast(125), use

                 noSuchObject."
         ::= { adslAturChanEntry 1 }

         adslAturChanCurrTxRate  OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "bps"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Actual transmit rate on this channel."
         ::= { adslAturChanEntry 2 }

         adslAturChanPrevTxRate OBJECT-TYPE
             SYNTAX      Gauge32
             UNITS       "bps"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                "The rate at the time of the last
                 adslAturRateChangeTrap event. It is also set at
                 initialization to prevent a trap being sent.
                 Rate changes less than adslAturThresh(*)RateDown
                 or less than adslAturThresh(*)RateUp will not
                 cause a trap or cause this object to change.
                 (*) == Fast or Interleave.
                 See AdslLineAlarmConfProfileEntry."
         ::= { adslAturChanEntry 3 }

         adslAturChanCrcBlockLength OBJECT-TYPE
             SYNTAX      Gauge32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Indicates the length of the channel data-block
                 on which the CRC operates.  Refer to Line Code
                 Specific MIBs, [11] and [12] for more
                 information."
         ::= { adslAturChanEntry 4 }

         adslAtucPerfDataTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUC.
                 ADSL physical interfaces are
                 those ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 6 }

         adslAtucPerfDataEntry       OBJECT-TYPE
             SYNTAX          AdslAtucPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in adslAtucPerfDataTable."
             INDEX           { ifIndex }
         ::= { adslAtucPerfDataTable 1 }

         AdslAtucPerfDataEntry ::=
             SEQUENCE {
             adslAtucPerfLofs                 Counter32,
             adslAtucPerfLoss                 Counter32,
             adslAtucPerfLols                 Counter32,
             adslAtucPerfLprs                 Counter32,
             adslAtucPerfESs                  Counter32,
             adslAtucPerfInits                Counter32,
             adslAtucPerfValidIntervals       INTEGER,
             adslAtucPerfInvalidIntervals     INTEGER,
             adslAtucPerfCurr15MinTimeElapsed AdslPerfTimeElapsed,
             adslAtucPerfCurr15MinLofs        PerfCurrentCount,
             adslAtucPerfCurr15MinLoss        PerfCurrentCount,
             adslAtucPerfCurr15MinLols        PerfCurrentCount,
             adslAtucPerfCurr15MinLprs        PerfCurrentCount,
             adslAtucPerfCurr15MinESs         PerfCurrentCount,
             adslAtucPerfCurr15MinInits       PerfCurrentCount,
             adslAtucPerfCurr1DayTimeElapsed  AdslPerfTimeElapsed,
             adslAtucPerfCurr1DayLofs         AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayLoss         AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayLols         AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayLprs         AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayESs          AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayInits        AdslPerfCurrDayCount,
             adslAtucPerfPrev1DayMoniSecs     INTEGER,
             adslAtucPerfPrev1DayLofs         AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayLoss         AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayLols         AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayLprs         AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayESs          AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayInits        AdslPerfPrevDayCount
             }

         -- Event Counters
         --
         -- Also see adslAtucIntervalTable for 15 minute interval
         -- elapsed counters.
         --
         adslAtucPerfLofs OBJECT-TYPE
             SYNTAX      Counter32

             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Loss of Framing failures since
                 agent reset."
         ::= { adslAtucPerfDataEntry 1 }

         adslAtucPerfLoss  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Loss of Signal failures since
                 agent reset."
         ::= { adslAtucPerfDataEntry 2 }

         adslAtucPerfLols OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Loss of Link failures since
                 agent reset."
         ::= { adslAtucPerfDataEntry 3 }

         adslAtucPerfLprs OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Loss of Power failures since
                 agent reset."
         ::= { adslAtucPerfDataEntry 4 }

         adslAtucPerfESs OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Errored Seconds since agent
                 reset.  The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAtucPerfDataEntry 5 }

         adslAtucPerfInits OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "Count of the line initialization attempts since
                 agent reset. Includes both successful and failed
                 attempts."
         ::= { adslAtucPerfDataEntry 6 }

         -- general 15 min interval information
         --

         adslAtucPerfValidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of previous 15-minute intervals in the
                 interval table for which data was collected.  Given
                 that <n> is the maximum # of intervals supported.
                 The value will be <n> unless the measurement was
                 (re-)started within the last (<n>*15) minutes, in which
                 case the value will be the number of complete 15
                 minute intervals for which the agent has at least
                 some data. In certain cases (e.g., in the case
                 where the agent is a proxy) it is possible that some
                 intervals are unavailable.  In this case, this
                 interval is the maximum interval number for
                 which data is available."
         ::= { adslAtucPerfDataEntry 7 }

         adslAtucPerfInvalidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of intervals in the range from
                 0 to the value of adslAtucPerfValidIntervals
                 for which no data is available. This object
                 will typically be zero except in cases where
                 the data for some intervals are not available
                 (e.g., in proxy situations)."
         ::= { adslAtucPerfDataEntry 8 }

         -- 15 min current performance group
         --
         adslAtucPerfCurr15MinTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..899)
             UNITS       "seconds"
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "Total elapsed seconds in this interval."
         ::= { adslAtucPerfDataEntry 9 }

         adslAtucPerfCurr15MinLofs OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Framing."
         ::= { adslAtucPerfDataEntry 10 }

         adslAtucPerfCurr15MinLoss  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Signal."
         ::= { adslAtucPerfDataEntry 11 }

         adslAtucPerfCurr15MinLols  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Link."
         ::= { adslAtucPerfDataEntry 12 }

         adslAtucPerfCurr15MinLprs  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Power."
         ::= { adslAtucPerfDataEntry 13 }

         adslAtucPerfCurr15MinESs OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"

             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds in the current 15 minute
                 interval.  The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAtucPerfDataEntry 14 }

         adslAtucPerfCurr15MinInits  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the line initialization attempts in the
                 current 15 minute interval. Includes both successful
                 and failed attempts."
         ::= { adslAtucPerfDataEntry 15 }

         -- 1-day current and previous performance group
         --
         adslAtucPerfCurr1DayTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..86399)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Number of seconds that have elapsed since the
                 beginning of the current 1-day interval."
         ::= { adslAtucPerfDataEntry 16 }

         adslAtucPerfCurr1DayLofs  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of seconds when there was Loss of
                 Framing during the current day as measured by
                 adslAtucPerfCurr1DayTimeElapsed."
         ::= { adslAtucPerfDataEntry 17 }

         adslAtucPerfCurr1DayLoss  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION

                 "Count of the number of seconds when there was Loss of
                 Signal during the current day as measured by
                 adslAtucPerfCurr1DayTimeElapsed."
         ::= { adslAtucPerfDataEntry 18 }

         adslAtucPerfCurr1DayLols  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of seconds when there was Loss of
                 Link during the current day as measured by
                 adslAtucPerfCurr1DayTimeElapsed."
         ::= { adslAtucPerfDataEntry 19 }

         adslAtucPerfCurr1DayLprs  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of seconds when there was Loss of
                 Power during the current day as measured by
                 adslAtucPerfCurr1DayTimeElapsed."
         ::= { adslAtucPerfDataEntry 20 }

         adslAtucPerfCurr1DayESs OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds during the current day as
                 measured by adslAtucPerfCurr1DayTimeElapsed.
                 The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAtucPerfDataEntry 21 }

         adslAtucPerfCurr1DayInits  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the line initialization attempts in the
                 day as measured by adslAtucPerfCurr1DayTimeElapsed.
                 Includes both successful and failed attempts."

         ::= { adslAtucPerfDataEntry 22 }

         adslAtucPerfPrev1DayMoniSecs OBJECT-TYPE
             SYNTAX      INTEGER(0..86400)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The amount of time in the previous 1-day interval
                 over which the performance monitoring information
                 is actually counted. This value will be the same as
                 the interval duration except in a situation where
                 performance monitoring data could not be collected
                 for any reason."
         ::= { adslAtucPerfDataEntry 23 }

         adslAtucPerfPrev1DayLofs  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Framing within the most recent previous
                 1-day period."
         ::= { adslAtucPerfDataEntry 24 }

         adslAtucPerfPrev1DayLoss  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Signal within the most recent previous
                 1-day period."
         ::= { adslAtucPerfDataEntry 25 }

         adslAtucPerfPrev1DayLols  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Link within the most recent previous
                 1-day period."
         ::= { adslAtucPerfDataEntry 26 }

         adslAtucPerfPrev1DayLprs  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Power within the most recent previous
                 1-day period."
         ::= { adslAtucPerfDataEntry 27 }

         adslAtucPerfPrev1DayESs OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds within the most recent
                 previous 1-day period. The errored second parameter is
                 a count of one-second intervals containing one or more
                 crc anomalies, or one or more los or sef defects."
         ::= { adslAtucPerfDataEntry 28 }

         adslAtucPerfPrev1DayInits  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the line initialization attempts in the most
                 recent previous 1-day period. Includes both successful
                 and failed attempts."
         ::= { adslAtucPerfDataEntry 29 }

         adslAturPerfDataTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUR.
                 ADSL physical interfaces are
                 those ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 7 }

         adslAturPerfDataEntry       OBJECT-TYPE
             SYNTAX          AdslAturPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in adslAturPerfDataTable."

             INDEX           { ifIndex }
         ::= { adslAturPerfDataTable 1 }

         AdslAturPerfDataEntry ::=
             SEQUENCE {
             adslAturPerfLofs                 Counter32,
             adslAturPerfLoss                 Counter32,
             adslAturPerfLprs                 Counter32,
             adslAturPerfESs                  Counter32,
             adslAturPerfValidIntervals       INTEGER,
             adslAturPerfInvalidIntervals     INTEGER,
             adslAturPerfCurr15MinTimeElapsed AdslPerfTimeElapsed,
             adslAturPerfCurr15MinLofs        PerfCurrentCount,
             adslAturPerfCurr15MinLoss        PerfCurrentCount,
             adslAturPerfCurr15MinLprs        PerfCurrentCount,
             adslAturPerfCurr15MinESs         PerfCurrentCount,
             adslAturPerfCurr1DayTimeElapsed  AdslPerfTimeElapsed,
             adslAturPerfCurr1DayLofs         AdslPerfCurrDayCount,
             adslAturPerfCurr1DayLoss         AdslPerfCurrDayCount,
             adslAturPerfCurr1DayLprs         AdslPerfCurrDayCount,
             adslAturPerfCurr1DayESs          AdslPerfCurrDayCount,
             adslAturPerfPrev1DayMoniSecs     INTEGER,
             adslAturPerfPrev1DayLofs         AdslPerfPrevDayCount,
             adslAturPerfPrev1DayLoss         AdslPerfPrevDayCount,
             adslAturPerfPrev1DayLprs         AdslPerfPrevDayCount,
             adslAturPerfPrev1DayESs          AdslPerfPrevDayCount
             }

         -- Event (Raw) Counters
         --
         -- Also see adslAturIntervalTable for 15 minute interval
         -- elapsed counters.
         --
         adslAturPerfLofs OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Loss of Framing failures since
                 agent reset."
         ::= { adslAturPerfDataEntry 1 }

         adslAturPerfLoss  OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "Count of the number of Loss of Signal failures since
                 agent reset."
         ::= { adslAturPerfDataEntry 2 }

        adslAturPerfLprs  OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Loss of Power failures since
                 agent reset."
         ::= { adslAturPerfDataEntry 3 }

         adslAturPerfESs  OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of Errored Seconds since agent
                 reset.  The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAturPerfDataEntry 4 }

         -- general 15 min interval information
         --
         adslAturPerfValidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of previous 15-minute intervals in the
                 interval table for which data was collected.  Given
                 that <n> is the maximum # of intervals supported.
                 The value will be <n> unless the measurement was
                 (re-)started within the last (<n>*15) minutes, in which
                 case the value will be the number of complete 15
                 minute intervals for which the agent has at least
                 some data. In certain cases (e.g., in the case
                 where the agent is a proxy) it is possible that some
                 intervals are unavailable.  In this case, this
                 interval is the maximum interval number for
                 which data is available."
         ::= { adslAturPerfDataEntry 5 }

         adslAturPerfInvalidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of intervals in the range from
                 0 to the value of adslAturPerfValidIntervals
                 for which no data is available. This object
                 will typically be zero except in cases where
                 the data for some intervals are not available
                 (e.g., in proxy situations)."
         ::= { adslAturPerfDataEntry 6 }

         -- 15 min current performance group
         --
         adslAturPerfCurr15MinTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..899)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Total elapsed seconds in this interval."
         ::= { adslAturPerfDataEntry 7 }

         adslAturPerfCurr15MinLofs OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Framing."
         ::= { adslAturPerfDataEntry 8 }

         adslAturPerfCurr15MinLoss  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Signal."
         ::= { adslAturPerfDataEntry 9 }

         adslAturPerfCurr15MinLprs  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "Count of seconds in the current 15 minute interval
                 when there was Loss of Power."
         ::= { adslAturPerfDataEntry 10 }

         adslAturPerfCurr15MinESs OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                "Count of Errored Seconds in the current 15 minute
                interval.  The errored second parameter is a count of
                one-second intervals containing one or more crc
                anomalies, or one or more los or sef defects."

         ::= { adslAturPerfDataEntry 11 }

         -- 1-day current and previous performance group
         --
         adslAturPerfCurr1DayTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..86399)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Number of seconds that have elapsed since the
                 beginning of the current 1-day interval."
         ::= { adslAturPerfDataEntry 12 }

         adslAturPerfCurr1DayLofs  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of seconds when there was Loss
                 of Framing during the current day as measured by
                 adslAturPerfCurr1DayTimeElapsed."
         ::= { adslAturPerfDataEntry 13 }

         adslAturPerfCurr1DayLoss  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION

                 "Count of the number of seconds when there was Loss
                 of Signal during the current day as measured by
                 adslAturPerfCurr1DayTimeElapsed."
         ::= { adslAturPerfDataEntry 14 }

         adslAturPerfCurr1DayLprs  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the number of seconds when there was Loss
                 of Power during the current day as measured by
                 adslAturPerfCurr1DayTimeElapsed."
         ::= { adslAturPerfDataEntry 15 }

    adslAturPerfCurr1DayESs OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds during the current day as
                 measured by adslAturPerfCurr1DayTimeElapsed.
                 The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAturPerfDataEntry 16 }

         adslAturPerfPrev1DayMoniSecs OBJECT-TYPE
             SYNTAX      INTEGER(0..86400)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The amount of time in the previous 1-day interval
                 over which the performance monitoring information
                 is actually counted. This value will be the same as
                 the interval duration except in a situation where
                 performance monitoring data could not be collected
                 for any reason."
         ::= { adslAturPerfDataEntry 17 }

         adslAturPerfPrev1DayLofs  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Framing within the most recent previous
                 1-day period."
         ::= { adslAturPerfDataEntry 18 }

         adslAturPerfPrev1DayLoss  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Signal within the most recent previous
                 1-day period."
         ::= { adslAturPerfDataEntry 19 }

         adslAturPerfPrev1DayLprs  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Power within the most recent previous
                 1-day period."
         ::= { adslAturPerfDataEntry 20 }

         adslAturPerfPrev1DayESs OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds within the most recent
                 previous 1-day period. The errored second parameter is
                 a count of one-second intervals containing one or more
                 crc anomalies, or one or more los or sef defects."
         ::= { adslAturPerfDataEntry 21 }

         adslAtucIntervalTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUC
                 performance data collection interval.
                 ADSL physical interfaces are

                 those ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 8 }

         adslAtucIntervalEntry   OBJECT-TYPE
             SYNTAX          AdslAtucIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAtucIntervalTable."
             INDEX           { ifIndex, adslAtucIntervalNumber }
         ::= { adslAtucIntervalTable 1 }

         AdslAtucIntervalEntry ::=
             SEQUENCE {
             adslAtucIntervalNumber          INTEGER,
             adslAtucIntervalLofs            PerfIntervalCount,
             adslAtucIntervalLoss            PerfIntervalCount,
             adslAtucIntervalLols            PerfIntervalCount,
             adslAtucIntervalLprs            PerfIntervalCount,
             adslAtucIntervalESs             PerfIntervalCount,
             adslAtucIntervalInits           PerfIntervalCount,
             adslAtucIntervalValidData       TruthValue
             }

         adslAtucIntervalNumber OBJECT-TYPE
             SYNTAX      INTEGER(1..96)
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                 "Performance Data Interval number 1 is the
                 the most recent previous interval; interval
                 96 is 24 hours ago.  Intervals 2..96 are
                 optional."
         ::= { adslAtucIntervalEntry 1 }

         adslAtucIntervalLofs OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was Loss
                 of Framing."
         ::= { adslAtucIntervalEntry 2 }

         adslAtucIntervalLoss  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was Loss
                 of Signal."
         ::= { adslAtucIntervalEntry 3 }

         adslAtucIntervalLols  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was Loss
                 of Link."
         ::= { adslAtucIntervalEntry 4 }

         adslAtucIntervalLprs  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was Loss
                 of Power."
         ::= { adslAtucIntervalEntry 5 }

         adslAtucIntervalESs OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds in the interval.
                 The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAtucIntervalEntry 6 }

         adslAtucIntervalInits  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of the line initialization attempts
                 during the interval. Includes both successful
                 and failed attempts."
         ::= { adslAtucIntervalEntry 7 }

         adslAtucIntervalValidData OBJECT-TYPE
             SYNTAX TruthValue
             MAX-ACCESS read-only
             STATUS current
             DESCRIPTION
                 "This variable indicates if the data for this
                 interval is valid."
         ::= { adslAtucIntervalEntry 8 }

         adslAturIntervalTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUR
                 performance data collection interval.
                 ADSL physical interfaces are those
                 ifEntries where ifType is equal to adsl(94)."
         ::= { adslMibObjects 9 }

         adslAturIntervalEntry   OBJECT-TYPE
             SYNTAX          AdslAturIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAturIntervalTable."
             INDEX           { ifIndex, adslAturIntervalNumber }
         ::= { adslAturIntervalTable 1 }

         AdslAturIntervalEntry ::=
             SEQUENCE {
             adslAturIntervalNumber          INTEGER,
             adslAturIntervalLofs            PerfIntervalCount,
             adslAturIntervalLoss            PerfIntervalCount,
             adslAturIntervalLprs            PerfIntervalCount,
             adslAturIntervalESs             PerfIntervalCount,
             adslAturIntervalValidData       TruthValue
             }

         adslAturIntervalNumber OBJECT-TYPE
             SYNTAX      INTEGER(1..96)
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                 "Performance Data Interval number 1 is the
                 the most recent previous interval; interval
                 96 is 24 hours ago.  Intervals 2..96 are
                 optional."
         ::= { adslAturIntervalEntry 1 }

         adslAturIntervalLofs OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Framing."
         ::= { adslAturIntervalEntry 2 }

         adslAturIntervalLoss  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Signal."
         ::= { adslAturIntervalEntry 3 }

         adslAturIntervalLprs  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of seconds in the interval when there was
                 Loss of Power."
         ::= { adslAturIntervalEntry 4 }

         adslAturIntervalESs OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of Errored Seconds in the interval.
                 The errored second parameter is a count of
                 one-second intervals containing one or more crc
                 anomalies, or one or more los or sef defects."
         ::= { adslAturIntervalEntry 5 }

         adslAturIntervalValidData OBJECT-TYPE
             SYNTAX TruthValue
             MAX-ACCESS read-only
             STATUS current
             DESCRIPTION
                 "This variable indicates if the data for this

                 interval is valid."
         ::= { adslAturIntervalEntry 6 }

         adslAtucChanPerfDataTable       OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucChanPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUC channel.
                 ADSL channel interfaces are those ifEntries
                 where ifType is equal to adslInterleave(124)
                 or adslFast(125)."
         ::= { adslMibObjects 10 }

         adslAtucChanPerfDataEntry       OBJECT-TYPE

             SYNTAX          AdslAtucChanPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in adslAtucChanPerfDataTable."
             INDEX           { ifIndex }
         ::= { adslAtucChanPerfDataTable 1 }

         AdslAtucChanPerfDataEntry ::=
          SEQUENCE {
          adslAtucChanReceivedBlks                 Counter32,
          adslAtucChanTransmittedBlks              Counter32,
          adslAtucChanCorrectedBlks                Counter32,
          adslAtucChanUncorrectBlks                Counter32,
          adslAtucChanPerfValidIntervals           INTEGER,
          adslAtucChanPerfInvalidIntervals         INTEGER,
          adslAtucChanPerfCurr15MinTimeElapsed     AdslPerfTimeElapsed,
          adslAtucChanPerfCurr15MinReceivedBlks    PerfCurrentCount,
          adslAtucChanPerfCurr15MinTransmittedBlks PerfCurrentCount,
          adslAtucChanPerfCurr15MinCorrectedBlks   PerfCurrentCount,
          adslAtucChanPerfCurr15MinUncorrectBlks   PerfCurrentCount,
          adslAtucChanPerfCurr1DayTimeElapsed      AdslPerfTimeElapsed,
          adslAtucChanPerfCurr1DayReceivedBlks     AdslPerfCurrDayCount,
          adslAtucChanPerfCurr1DayTransmittedBlks  AdslPerfCurrDayCount,
          adslAtucChanPerfCurr1DayCorrectedBlks    AdslPerfCurrDayCount,
          adslAtucChanPerfCurr1DayUncorrectBlks    AdslPerfCurrDayCount,
          adslAtucChanPerfPrev1DayMoniSecs         INTEGER,
          adslAtucChanPerfPrev1DayReceivedBlks     AdslPerfPrevDayCount,
          adslAtucChanPerfPrev1DayTransmittedBlks  AdslPerfPrevDayCount,
          adslAtucChanPerfPrev1DayCorrectedBlks    AdslPerfPrevDayCount,
          adslAtucChanPerfPrev1DayUncorrectBlks    AdslPerfPrevDayCount
         }
         -- performance group

         --
         -- Note: block is intended to be the length of the channel
         --       data-block on which the CRC operates. See
         --       adslAtucChanCrcBlockLength for more information.
         --
         adslAtucChanReceivedBlks OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this channel
                 since agent reset."
         ::= { adslAtucChanPerfDataEntry 1 }

         adslAtucChanTransmittedBlks  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel since agent reset."
         ::= { adslAtucChanPerfDataEntry 2 }

         adslAtucChanCorrectedBlks  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected since agent reset.  These blocks are passed
                 on as good data."
         ::= { adslAtucChanPerfDataEntry 3 }

         adslAtucChanUncorrectBlks  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors since agent reset."
         ::= { adslAtucChanPerfDataEntry 4 }

         -- general 15 min interval information
         --
         adslAtucChanPerfValidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "The number of previous 15-minute intervals in the
                 interval table for which data was collected.  Given
                 that <n> is the maximum # of intervals supported.
                 The value will be <n> unless the measurement was
                 (re-)started within the last (<n>*15) minutes, in which
                 case the value will be the number of complete 15
                 minute intervals for which the agent has at least
                 some data. In certain cases (e.g., in the case
                 where the agent is a proxy) it is possible that some
                 intervals are unavailable.  In this case, this
                 interval is the maximum interval number for
                 which data is available."
         ::= { adslAtucChanPerfDataEntry 5 }

         adslAtucChanPerfInvalidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of intervals in the range from
                 0 to the value of adslAtucChanPerfValidIntervals
                 for which no data is available. This object
                 will typically be zero except in cases where
                 the data for some intervals are not available
                 (e.g., in proxy situations)."
         ::= { adslAtucChanPerfDataEntry 6 }

         -- 15 min current performance group
         --
         adslAtucChanPerfCurr15MinTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..899)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Total elapsed seconds in this interval."
         ::= { adslAtucChanPerfDataEntry 7 }

         adslAtucChanPerfCurr15MinReceivedBlks OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this channel
                 within the current 15 minute interval."
         ::= { adslAtucChanPerfDataEntry 8 }

         adslAtucChanPerfCurr15MinTransmittedBlks OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel within the current 15 minute interval."
         ::= { adslAtucChanPerfDataEntry 9 }

         adslAtucChanPerfCurr15MinCorrectedBlks  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel within the current 15 minute
                 interval."
         ::= { adslAtucChanPerfDataEntry 10 }

         adslAtucChanPerfCurr15MinUncorrectBlks  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel within the current 15 minute
                 interval."
         ::= { adslAtucChanPerfDataEntry 11 }

         -- 1-day current and previous performance group
         --
         adslAtucChanPerfCurr1DayTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..86399)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Number of seconds that have elapsed since the
                 beginning of the current 1-day interval."
         ::= { adslAtucChanPerfDataEntry 12 }

         adslAtucChanPerfCurr1DayReceivedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this
                 channel during the current day as measured by

                 adslAtucChanPerfCurr1DayTimeElapsed."
         ::= { adslAtucChanPerfDataEntry 13 }

         adslAtucChanPerfCurr1DayTransmittedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel during the current day as measured by
                 adslAtucChanPerfCurr1DayTimeElapsed."
         ::= { adslAtucChanPerfDataEntry 14 }

         adslAtucChanPerfCurr1DayCorrectedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel during the current day as
                 measured by adslAtucChanPerfCurr1DayTimeElapsed."
         ::= { adslAtucChanPerfDataEntry 15 }

         adslAtucChanPerfCurr1DayUncorrectBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel during the current day as
                 measured by adslAtucChanPerfCurr1DayTimeElapsed."
         ::= { adslAtucChanPerfDataEntry 16 }

         adslAtucChanPerfPrev1DayMoniSecs OBJECT-TYPE
             SYNTAX      INTEGER(0..86400)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The amount of time in the previous 1-day interval
                 over which the performance monitoring information
                 is actually counted. This value will be the same as
                 the interval duration except in a situation where
                 performance monitoring data could not be collected
                 for any reason."
         ::= { adslAtucChanPerfDataEntry 17 }

         adslAtucChanPerfPrev1DayReceivedBlks  OBJECT-TYPE

             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this
                 channel within the most recent previous 1-day
                 period."
         ::= { adslAtucChanPerfDataEntry 18 }

         adslAtucChanPerfPrev1DayTransmittedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel within the most recent previous 1-day
                 period."
         ::= { adslAtucChanPerfDataEntry 19 }

         adslAtucChanPerfPrev1DayCorrectedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel within the most recent
                 previous 1-day period."
         ::= { adslAtucChanPerfDataEntry 20 }

         adslAtucChanPerfPrev1DayUncorrectBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel within the most recent previous
                 1-day period."
         ::= { adslAtucChanPerfDataEntry 21 }

         adslAturChanPerfDataTable       OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturChanPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUR channel.
                 ADSL channel interfaces are those ifEntries
                 where ifType is equal to adslInterleave(124)
                 or adslFast(125)."

         ::= { adslMibObjects 11 }

         adslAturChanPerfDataEntry       OBJECT-TYPE
             SYNTAX          AdslAturChanPerfDataEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in adslAturChanPerfDataTable."
             INDEX           { ifIndex }
         ::= { adslAturChanPerfDataTable 1 }

         AdslAturChanPerfDataEntry ::=
          SEQUENCE {
          adslAturChanReceivedBlks                 Counter32,
          adslAturChanTransmittedBlks              Counter32,
          adslAturChanCorrectedBlks                Counter32,
          adslAturChanUncorrectBlks                Counter32,
          adslAturChanPerfValidIntervals           INTEGER,
          adslAturChanPerfInvalidIntervals         INTEGER,
          adslAturChanPerfCurr15MinTimeElapsed     AdslPerfTimeElapsed,
          adslAturChanPerfCurr15MinReceivedBlks    PerfCurrentCount,
          adslAturChanPerfCurr15MinTransmittedBlks PerfCurrentCount,
          adslAturChanPerfCurr15MinCorrectedBlks   PerfCurrentCount,
          adslAturChanPerfCurr15MinUncorrectBlks   PerfCurrentCount,
          adslAturChanPerfCurr1DayTimeElapsed      AdslPerfTimeElapsed,
          adslAturChanPerfCurr1DayReceivedBlks     AdslPerfCurrDayCount,
          adslAturChanPerfCurr1DayTransmittedBlks  AdslPerfCurrDayCount,
          adslAturChanPerfCurr1DayCorrectedBlks    AdslPerfCurrDayCount,
          adslAturChanPerfCurr1DayUncorrectBlks    AdslPerfCurrDayCount,
          adslAturChanPerfPrev1DayMoniSecs         INTEGER,
          adslAturChanPerfPrev1DayReceivedBlks     AdslPerfPrevDayCount,
          adslAturChanPerfPrev1DayTransmittedBlks  AdslPerfPrevDayCount,
          adslAturChanPerfPrev1DayCorrectedBlks    AdslPerfPrevDayCount,
          adslAturChanPerfPrev1DayUncorrectBlks    AdslPerfPrevDayCount
          }
         -- performance group
         --
         -- Note: block is intended to be the length of the channel
         --       data-block on which the CRC operates. See
         --       adslAturChanCrcBlockLength for more information.
         --
         adslAturChanReceivedBlks OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this channel
                 since agent reset."
         ::= { adslAturChanPerfDataEntry 1 }

         adslAturChanTransmittedBlks  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel since agent reset."
         ::= { adslAturChanPerfDataEntry 2 }

         adslAturChanCorrectedBlks  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected since agent reset.  These blocks are passed
                 on as good data."
         ::= { adslAturChanPerfDataEntry 3 }

         adslAturChanUncorrectBlks  OBJECT-TYPE
             SYNTAX      Counter32
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors since agent reset."
         ::= { adslAturChanPerfDataEntry 4 }

         -- general 15 min interval information
         --
         adslAturChanPerfValidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of previous 15-minute intervals in the
                 interval table for which data was collected.  Given
                 that <n> is the maximum # of intervals supported.
                 The value will be <n> unless the measurement was
                 (re-)started within the last (<n>*15) minutes, in which
                 case the value will be the number of complete 15
                 minute intervals for which the agent has at least
                 some data. In certain cases (e.g., in the case
                 where the agent is a proxy) it is possible that some
                 intervals are unavailable.  In this case, this
                 interval is the maximum interval number for
                 which data is available."
         ::= { adslAturChanPerfDataEntry 5 }

         adslAturChanPerfInvalidIntervals OBJECT-TYPE
             SYNTAX      INTEGER(0..96)
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The number of intervals in the range from
                 0 to the value of adslAturChanPerfValidIntervals
                 for which no data is available. This object
                 will typically be zero except in cases where
                 the data for some intervals are not available
                 (e.g., in proxy situations)."
         ::= { adslAturChanPerfDataEntry 6 }

         -- 15 min current performance group
         --
         adslAturChanPerfCurr15MinTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..899)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Total elapsed seconds in this interval.
                 A full interval is 900 seconds."
         ::= { adslAturChanPerfDataEntry 7 }

         adslAturChanPerfCurr15MinReceivedBlks OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this
                 channel within the current 15 minute interval."
         ::= { adslAturChanPerfDataEntry 8 }

         adslAturChanPerfCurr15MinTransmittedBlks OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel within the current 15 minute interval."
         ::= { adslAturChanPerfDataEntry 9 }

         adslAturChanPerfCurr15MinCorrectedBlks  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION

                 "Count of all blocks received with errors that were
                 corrected on this channel within the current 15 minute
                 interval."
         ::= { adslAturChanPerfDataEntry 10 }

         adslAturChanPerfCurr15MinUncorrectBlks  OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel within the current 15 minute
                 interval."
         ::= { adslAturChanPerfDataEntry 11 }

         -- 1-day current and previous performance group
         --
         adslAturChanPerfCurr1DayTimeElapsed OBJECT-TYPE
             SYNTAX      AdslPerfTimeElapsed(0..86399)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Number of seconds that have elapsed since the
                 beginning of the current 1-day interval."
         ::= { adslAturChanPerfDataEntry 12 }

         adslAturChanPerfCurr1DayReceivedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this
                 channel during the current day as measured by
                 adslAturChanPerfCurr1DayTimeElapsed."
         ::= { adslAturChanPerfDataEntry 13 }

         adslAturChanPerfCurr1DayTransmittedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel during the current day as measured by
                 adslAturChanPerfCurr1DayTimeElapsed."

         ::= { adslAturChanPerfDataEntry 14 }

         adslAturChanPerfCurr1DayCorrectedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel during the current day as
                 measured by adslAturChanPerfCurr1DayTimeElapsed."
         ::= { adslAturChanPerfDataEntry 15 }

         adslAturChanPerfCurr1DayUncorrectBlks  OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel during the current day as
                 measured by adslAturChanPerfCurr1DayTimeElapsed."
         ::= { adslAturChanPerfDataEntry 16 }

         adslAturChanPerfPrev1DayMoniSecs OBJECT-TYPE
             SYNTAX      INTEGER(0..86400)
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The amount of time in the previous 1-day interval
                 over which the performance monitoring information
                 is actually counted. This value will be the same as
                 the interval duration except in a situation where
                 performance monitoring data could not be collected
                 for any reason."
         ::= { adslAturChanPerfDataEntry 17 }

         adslAturChanPerfPrev1DayReceivedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this
                 channel within the most recent previous 1-day
                 period."
         ::= { adslAturChanPerfDataEntry 18 }

         adslAturChanPerfPrev1DayTransmittedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel within the most recent previous 1-day
                 period."
         ::= { adslAturChanPerfDataEntry 19 }

         adslAturChanPerfPrev1DayCorrectedBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel within the most recent
                 previous 1-day period."
         ::= { adslAturChanPerfDataEntry 20 }

         adslAturChanPerfPrev1DayUncorrectBlks  OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel within the most recent previous
                 1-day period."
         ::= { adslAturChanPerfDataEntry 21 }

         adslAtucChanIntervalTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucChanIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUC channel's
                 performance data collection interval.
                 ADSL channel interfaces are those ifEntries
                 where ifType is equal to adslInterleave(124)
                 or adslFast(125)."
         ::= { adslMibObjects 12 }

         adslAtucChanIntervalEntry   OBJECT-TYPE
             SYNTAX          AdslAtucChanIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAtucIntervalTable."
             INDEX           { ifIndex, adslAtucChanIntervalNumber }
         ::= { adslAtucChanIntervalTable 1 }

         AdslAtucChanIntervalEntry ::=
             SEQUENCE {

             adslAtucChanIntervalNumber          INTEGER,
             adslAtucChanIntervalReceivedBlks    PerfIntervalCount,
             adslAtucChanIntervalTransmittedBlks PerfIntervalCount,
             adslAtucChanIntervalCorrectedBlks   PerfIntervalCount,
             adslAtucChanIntervalUncorrectBlks   PerfIntervalCount,
             adslAtucChanIntervalValidData       TruthValue
             }
         adslAtucChanIntervalNumber OBJECT-TYPE
             SYNTAX      INTEGER(1..96)
             MAX-ACCESS  not-accessible
             STATUS      current
             DESCRIPTION
                 "Performance Data Interval number 1 is the
                 the most recent previous interval; interval
                 96 is 24 hours ago.  Intervals 2..96 are
                 optional."
         ::= { adslAtucChanIntervalEntry 1 }

         adslAtucChanIntervalReceivedBlks OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this channel
                 during this interval."
         ::= { adslAtucChanIntervalEntry 2 }

         adslAtucChanIntervalTransmittedBlks  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel during this interval."
         ::= { adslAtucChanIntervalEntry 3 }

         adslAtucChanIntervalCorrectedBlks  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel during this interval."
         ::= { adslAtucChanIntervalEntry 4 }

         adslAtucChanIntervalUncorrectBlks  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only

             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel during this interval."
         ::= { adslAtucChanIntervalEntry 5 }

         adslAtucChanIntervalValidData OBJECT-TYPE
             SYNTAX TruthValue
             MAX-ACCESS read-only
             STATUS current
             DESCRIPTION
                 "This variable indicates if the data for this
                 interval is valid."
         ::= { adslAtucChanIntervalEntry 6 }

         adslAturChanIntervalTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturChanIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATUR channel's
                 performance data collection interval.
                 ADSL channel interfaces are those ifEntries
                 where ifType is equal to adslInterleave(124)
                 or adslFast(125)."
         ::= { adslMibObjects 13 }

         adslAturChanIntervalEntry   OBJECT-TYPE
             SYNTAX          AdslAturChanIntervalEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the adslAturIntervalTable."
             INDEX           { ifIndex, adslAturChanIntervalNumber }
         ::= { adslAturChanIntervalTable 1 }

         AdslAturChanIntervalEntry ::=
             SEQUENCE {
             adslAturChanIntervalNumber               INTEGER,
             adslAturChanIntervalReceivedBlks         PerfIntervalCount,
             adslAturChanIntervalTransmittedBlks      PerfIntervalCount,
             adslAturChanIntervalCorrectedBlks        PerfIntervalCount,
             adslAturChanIntervalUncorrectBlks        PerfIntervalCount,
             adslAturChanIntervalValidData            TruthValue
             }
         adslAturChanIntervalNumber OBJECT-TYPE
             SYNTAX      INTEGER(1..96)
             MAX-ACCESS  not-accessible
             STATUS      current

             DESCRIPTION
                 "Performance Data Interval number 1 is the
                 the most recent previous interval; interval
                 96 is 24 hours ago.  Intervals 2..96 are
                 optional."
         ::= { adslAturChanIntervalEntry 1 }

         adslAturChanIntervalReceivedBlks OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks received on this channel
                 during this interval."
         ::= { adslAturChanIntervalEntry 2 }

         adslAturChanIntervalTransmittedBlks  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all encoded blocks transmitted on this
                 channel during this interval."
         ::= { adslAturChanIntervalEntry 3 }

         adslAturChanIntervalCorrectedBlks  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with errors that were
                 corrected on this channel during this interval."
         ::= { adslAturChanIntervalEntry 4 }

         adslAturChanIntervalUncorrectBlks  OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "Count of all blocks received with uncorrectable
                 errors on this channel during this interval."
         ::= { adslAturChanIntervalEntry 5 }

         adslAturChanIntervalValidData OBJECT-TYPE
             SYNTAX TruthValue
             MAX-ACCESS read-only
             STATUS current
             DESCRIPTION

                 "This variable indicates if the data for this
                 interval is valid."
         ::= { adslAturChanIntervalEntry 6 }

         -- Profile Group
         --

         adslLineConfProfileTable    OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslLineConfProfileEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table contains information on the ADSL line
                 configuration.  One entry in this table reflects a
                 profile defined by a manager which can be used to
                 configure the ADSL line."
         ::= { adslMibObjects 14}

         adslLineConfProfileEntry    OBJECT-TYPE
             SYNTAX          AdslLineConfProfileEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "Each entry consists of a list of parameters that
                 represents the configuration of an ADSL modem.

                 When `dynamic' profiles are implemented, a default
                 profile will always exist.  This profile's name will
                 be set to `DEFVAL' and its parameters will be set
                 to vendor specific values, unless otherwise specified
                 in this document.

                 When `static' profiles are implemented, profiles
                 are automaticly created or destroyed as ADSL
                 physical lines are discovered and removed by
                 the system.  The name of the profile will be
                 equivalent to the decimal value of the line's
                 interface index.
                 "
             INDEX { IMPLIED adslLineConfProfileName}
         ::= { adslLineConfProfileTable 1}

         AdslLineConfProfileEntry ::=
             SEQUENCE {
             adslLineConfProfileName               SnmpAdminString,
             adslAtucConfRateMode                  INTEGER,
             adslAtucConfRateChanRatio             INTEGER,
             adslAtucConfTargetSnrMgn              INTEGER,

             adslAtucConfMaxSnrMgn                 INTEGER,
             adslAtucConfMinSnrMgn                 INTEGER,
             adslAtucConfDownshiftSnrMgn           INTEGER,
             adslAtucConfUpshiftSnrMgn             INTEGER,
             adslAtucConfMinUpshiftTime            INTEGER,
             adslAtucConfMinDownshiftTime          INTEGER,
             adslAtucChanConfFastMinTxRate         Unsigned32,
             adslAtucChanConfInterleaveMinTxRate   Unsigned32,
             adslAtucChanConfFastMaxTxRate         Unsigned32,
             adslAtucChanConfInterleaveMaxTxRate   Unsigned32,
             adslAtucChanConfMaxInterleaveDelay    INTEGER,
             adslAturConfRateMode                  INTEGER,
             adslAturConfRateChanRatio             INTEGER,
             adslAturConfTargetSnrMgn              INTEGER,
             adslAturConfMaxSnrMgn                 INTEGER,
             adslAturConfMinSnrMgn                 INTEGER,
             adslAturConfDownshiftSnrMgn           INTEGER,
             adslAturConfUpshiftSnrMgn             INTEGER,
             adslAturConfMinUpshiftTime            INTEGER,
             adslAturConfMinDownshiftTime          INTEGER,
             adslAturChanConfFastMinTxRate         Unsigned32,
             adslAturChanConfInterleaveMinTxRate   Unsigned32,
             adslAturChanConfFastMaxTxRate         Unsigned32,
             adslAturChanConfInterleaveMaxTxRate   Unsigned32,
             adslAturChanConfMaxInterleaveDelay    INTEGER,
             adslLineConfProfileRowStatus          RowStatus
         }

         adslLineConfProfileName    OBJECT-TYPE
                 SYNTAX          SnmpAdminString (SIZE (1..32))
                 MAX-ACCESS      not-accessible
                 STATUS          current
                 DESCRIPTION
                 "This object is used by the line configuration table
                 in order to identify a row of this table.

                 When `dynamic' profiles are implemented, the profile
                 name is user specified.  Also, the system will always
                 provide a default profile whose name is `DEFVAL'.

                 When `static' profiles are implemented, there is an
                 one-to-one relationship between each line and its
                 profile.  In which case, the profile name will
                 need to algorithmicly represent the Line's ifIndex.
                 Therefore, the profile's name is a decimalized string
                 of the ifIndex that is fixed-length (i.e., 10) with
                 leading zero(s).  For example, the profile name for
                 ifIndex which equals '15' will be '0000000015'."

         ::= { adslLineConfProfileEntry 1 }

         adslAtucConfRateMode OBJECT-TYPE
             SYNTAX      INTEGER {
                 fixed (1),              -- no rate adaptation
                 adaptAtStartup (2),     -- perform rate adaptation
                                         -- only at initialization
                 adaptAtRuntime (3)      -- perform rate adaptation at
                                         -- any time
             }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Defines what form of transmit rate adaptation is
                 configured on this modem.  See ADSL Forum TR-005 [3]
                 for more information."
         ::= { adslLineConfProfileEntry 2 }

         adslAtucConfRateChanRatio OBJECT-TYPE
             SYNTAX      INTEGER(0..100)
             UNITS        "%"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured allocation ratio of excess transmit
                 bandwidth between fast and interleaved channels.  Only
                 applies when two channel mode and RADSL are supported.
                 Distribute bandwidth on each channel in excess of the
                 corresponding ChanConfMinTxRate so that:
                 adslAtucConfRateChanRatio =

                         [Fast / (Fast + Interleaved)] * 100

                 In other words this value is the fast channel
                 percentage."
         ::= { adslLineConfProfileEntry 3 }

       adslAtucConfTargetSnrMgn OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Target Signal/Noise Margin.
                 This is the Noise Margin the modem must achieve
                 with a BER of 10-7 or better to successfully complete
                 initialization."
         ::= { adslLineConfProfileEntry 4 }

       adslAtucConfMaxSnrMgn OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Maximum acceptable Signal/Noise Margin.
                 If the Noise Margin is above this the modem should
                 attempt to reduce its power output to optimize its
                 operation."
         ::= { adslLineConfProfileEntry 5 }

         adslAtucConfMinSnrMgn  OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Minimum acceptable Signal/Noise Margin.
                 If the noise margin falls below this level, the modem
                 should attempt to increase its power output.  If that
                 is not possible the modem will attempt to
                 re-initialize or shut down."
         ::= { adslLineConfProfileEntry 6 }

         adslAtucConfDownshiftSnrMgn  OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Signal/Noise Margin for rate downshift.
                 If the noise margin falls below this level, the modem
                 should attempt to decrease its transmit rate.  In
                 the case that RADSL mode is not present,
                 the value will be `0'."
         ::= { adslLineConfProfileEntry 7 }

         adslAtucConfUpshiftSnrMgn  OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Signal/Noise Margin for rate upshift.
                 If the noise margin rises above this level, the modem
                 should attempt to increase its transmit rate.    In
                 the case that RADSL is not present, the value will

                 be `0'."
         ::= { adslLineConfProfileEntry 8 }

         adslAtucConfMinUpshiftTime OBJECT-TYPE
             SYNTAX      INTEGER(0..16383)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Minimum time that the current margin is above
                 UpshiftSnrMgn before an upshift occurs.
                 In the case that RADSL is not present, the value will
                 be `0'."
         ::= { adslLineConfProfileEntry 9 }
        adslAtucConfMinDownshiftTime OBJECT-TYPE
             SYNTAX      INTEGER(0..16383)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Minimum time that the current margin is below
                 DownshiftSnrMgn before a downshift occurs.
                 In the case that RADSL mode is not present,
                 the value will be `0'."
         ::= { adslLineConfProfileEntry 10 }

         adslAtucChanConfFastMinTxRate  OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Minimum Transmit rate for `Fast' channels,
                 in bps.  See adslAtucConfRateChanRatio for information
                 regarding RADSL mode and ATUR transmit rate for
                 ATUC receive rates."
         ::= { adslLineConfProfileEntry 11 }

         adslAtucChanConfInterleaveMinTxRate OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Minimum Transmit rate for `Interleave'
                 channels, in bps.  See adslAtucConfRateChanRatio for
                 information regarding RADSL mode and see
                 ATUR transmit rate for receive rates."

         ::= { adslLineConfProfileEntry 12 }

         adslAtucChanConfFastMaxTxRate  OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Maximum Transmit rate for `Fast' channels,
                 in bps.  See adslAtucConfRateChanRatio for information
                 regarding RADSL mode and see ATUR transmit rate for
                 ATUC receive rates."
         ::= { adslLineConfProfileEntry 13 }

         adslAtucChanConfInterleaveMaxTxRate OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Maximum Transmit rate for `Interleave'
                 channels, in bps.  See adslAtucConfRateChanRatio for
                 information regarding RADSL mode and ATUR transmit
                 rate for ATUC receive rates."
         ::= { adslLineConfProfileEntry 14 }

         adslAtucChanConfMaxInterleaveDelay OBJECT-TYPE
             SYNTAX      INTEGER(0..255)
             UNITS        "milli-seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured maximum Interleave Delay for this channel.

                 Interleave delay applies only to the interleave channel
                 and defines the mapping (relative spacing) between
                 subsequent input bytes at the interleaver input and
                 their placement in the bit stream at the interleaver
                 output.  Larger numbers provide greater separation
                 between consecutive input bytes in the output bit
                 stream allowing for improved impulse noise immunity
                 at the expense of payload latency."
         ::= { adslLineConfProfileEntry 15 }

         adslAturConfRateMode OBJECT-TYPE
             SYNTAX      INTEGER {
                 fixed (1),              -- no rate adaptation
                 adaptAtStartup (2),     -- perform rate adaptation

                                         -- only at initialization
                 adaptAtRuntime (3)      -- perform rate adaptation at
                                         -- any time
             }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Defines what form of transmit rate adaptation is
                 configured on this modem.  See ADSL Forum TR-005 [3]
                 for more information."
         ::= { adslLineConfProfileEntry 16 }

         adslAturConfRateChanRatio OBJECT-TYPE
             SYNTAX      INTEGER(0..100)
             UNITS        "%"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured allocation ratio of excess transmit
                 bandwidth between fast and interleaved channels.  Only
                 applies when two channel mode and RADSL are supported.
                 Distribute bandwidth on each channel in excess of the
                 corresponding ChanConfMinTxRate so that:
                 adslAturConfRateChanRatio =

                         [Fast / (Fast + Interleaved)] * 100

                 In other words this value is the fast channel
                 percentage."
         ::= { adslLineConfProfileEntry 17 }

       adslAturConfTargetSnrMgn OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Target Signal/Noise Margin.
                 This is the Noise Margin the modem must achieve
                 with a BER of 10-7 or better to successfully complete
                 initialization."
         ::= { adslLineConfProfileEntry 18 }

       adslAturConfMaxSnrMgn OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current

             DESCRIPTION
                 "Configured Maximum acceptable Signal/Noise Margin.
                 If the Noise Margin is above this the modem should
                 attempt to reduce its power output to optimize its
                 operation."
         ::= { adslLineConfProfileEntry 19 }

        adslAturConfMinSnrMgn  OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Minimum acceptable Signal/Noise Margin.
                 If the noise margin falls below this level, the modem
                 should attempt to increase its power output.  If that
                 is not possible the modem will attempt to
                 re-initialize or shut down."
         ::= { adslLineConfProfileEntry 20 }

         adslAturConfDownshiftSnrMgn  OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Signal/Noise Margin for rate downshift.
                 If the noise margin falls below this level, the modem
                 should attempt to decrease its transmit rate.
                 In the case that RADSL mode is not present,
                 the value will be `0'."
         ::= { adslLineConfProfileEntry 21 }

         adslAturConfUpshiftSnrMgn  OBJECT-TYPE
             SYNTAX      INTEGER (0..310)
             UNITS       "tenth dB"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Signal/Noise Margin for rate upshift.
                 If the noise margin rises above this level, the modem
                 should attempt to increase its transmit rate.
                 In the case that RADSL is not present,
                 the value will be `0'."
         ::= { adslLineConfProfileEntry 22 }

         adslAturConfMinUpshiftTime OBJECT-TYPE
             SYNTAX      INTEGER(0..16383)

             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Minimum time that the current margin is above
                 UpshiftSnrMgn before an upshift occurs.
                 In the case that RADSL is not present, the value will
                 be `0'."
         ::= { adslLineConfProfileEntry 23 }

        adslAturConfMinDownshiftTime OBJECT-TYPE
             SYNTAX      INTEGER(0..16383)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Minimum time that the current margin is below
                 DownshiftSnrMgn before a downshift occurs.
                 In the case that RADSL mode is not present,
                 the value will be `0'."
         ::= { adslLineConfProfileEntry 24 }

         adslAturChanConfFastMinTxRate  OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Minimum Transmit rate for `Fast' channels,
                 in bps.  See adslAturConfRateChanRatio for information
                 regarding RADSL mode and ATUC transmit rate
                 for ATUR receive rates."
         ::= { adslLineConfProfileEntry 25 }

         adslAturChanConfInterleaveMinTxRate OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Minimum Transmit rate for `Interleave'
                 channels, in bps.  See adslAturConfRateChanRatio for
                 information regarding RADSL mode and ATUC transmit rate
                 for ATUR receive rates."
         ::= { adslLineConfProfileEntry 26 }

         adslAturChanConfFastMaxTxRate  OBJECT-TYPE
             SYNTAX      Unsigned32

             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Maximum Transmit rate for `Fast' channels,
                 in bps.  See adslAturConfRateChanRatio for information
                 regarding RADSL mode and ATUC transmit rate
                 for ATUR receive rates."
         ::= { adslLineConfProfileEntry 27 }

         adslAturChanConfInterleaveMaxTxRate OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured Maximum Transmit rate for `Interleave'
                 channels, in bps.  See adslAturConfRateChanRatio for
                 information regarding RADSL mode and see
                 ATUC transmit rate for ATUR receive rates."
         ::= { adslLineConfProfileEntry 28 }

         adslAturChanConfMaxInterleaveDelay OBJECT-TYPE
             SYNTAX      INTEGER(0..255)
             UNITS        "milli-seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Configured maximum Interleave Delay for this channel.

                 Interleave delay applies only to the interleave channel
                 and defines the mapping (relative spacing) between
                 subsequent input bytes at the interleaver input and
                 their placement in the bit stream at the interleaver
                 output.  Larger numbers provide greater separation
                 between consecutive input bytes in the output bit
                 stream allowing for improved impulse noise immunity
                 at the expense of payload latency."
         ::= { adslLineConfProfileEntry 29 }

         adslLineConfProfileRowStatus OBJECT-TYPE
             SYNTAX          RowStatus
             MAX-ACCESS      read-create
             STATUS          current
             DESCRIPTION
                 "This object is used to create a new row or modify or
                 delete an existing row in this table.

                 A profile activated by setting this object to
                 `active'.  When `active' is set, the system
                 will validate the profile.

                 Before a profile can be deleted or taken out of
                 service, (by setting this object to `destroy' or
                 `outOfService') it must be first unreferenced
                 from all associated lines.

                 If the implementator of this MIB has chosen not
                 to implement `dynamic assignment' of profiles, this
                 object's MIN-ACCESS is read-only and its value
                 is always to be `active'."
         ::= { adslLineConfProfileEntry 30 }

         adslLineAlarmConfProfileTable    OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslLineAlarmConfProfileEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table contains information on the ADSL line
                 configuration.  One entry in this table reflects a
                 profile defined by a manager which can be used to
                 configure the modem for a physical line"
         ::= { adslMibObjects 15}

         adslLineAlarmConfProfileEntry    OBJECT-TYPE
             SYNTAX          AdslLineAlarmConfProfileEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "Each entry consists of a list of parameters that
                 represents the configuration of an ADSL modem.

                 When `dynamic' profiles are implemented, a default
                 profile will always exist.  This profile's name will
                 be set to `DEFVAL' and its parameters will be set to
                 vendor specific values, unless otherwise specified
                 in this document.

                 When `static' profiles are implemented, profiles
                 are automaticly created or destroyed as ADSL
                 physical lines are discovered and removed by
                 the system.  The name of the profile will be
                 equivalent to the decimal value of the line's
                 interface index.
                 "
             INDEX { IMPLIED adslLineAlarmConfProfileName}

         ::= { adslLineAlarmConfProfileTable 1}

         AdslLineAlarmConfProfileEntry ::=
             SEQUENCE {
             adslLineAlarmConfProfileName          SnmpAdminString,
             adslAtucThresh15MinLofs               INTEGER,
             adslAtucThresh15MinLoss               INTEGER,
             adslAtucThresh15MinLols               INTEGER,
             adslAtucThresh15MinLprs               INTEGER,
             adslAtucThresh15MinESs                INTEGER,
             adslAtucThreshFastRateUp              Unsigned32,
             adslAtucThreshInterleaveRateUp        Unsigned32,
             adslAtucThreshFastRateDown            Unsigned32,
             adslAtucThreshInterleaveRateDown      Unsigned32,
             adslAtucInitFailureTrapEnable         INTEGER,
             adslAturThresh15MinLofs               INTEGER,
             adslAturThresh15MinLoss               INTEGER,
             adslAturThresh15MinLprs               INTEGER,
             adslAturThresh15MinESs                INTEGER,
             adslAturThreshFastRateUp              Unsigned32,
             adslAturThreshInterleaveRateUp        Unsigned32,
             adslAturThreshFastRateDown            Unsigned32,
             adslAturThreshInterleaveRateDown      Unsigned32,
             adslLineAlarmConfProfileRowStatus     RowStatus
             }

         adslLineAlarmConfProfileName    OBJECT-TYPE
             SYNTAX          SnmpAdminString (SIZE (1..32))
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This object is used by the line alarm configuration
                 table in order to identify a row of this table.

                 When `dynamic' profiles are implemented, the profile
                 name is user specified.  Also, the system will always
                 provide a default profile whose name is `DEFVAL'.

                 When `static' profiles are implemented, there is an
                 one-to-one relationship between each line and its
                 profile.  In which case, the profile name will
                 need to algorithmicly represent the Line's ifIndex.
                 Therefore, the profile's name is a decimalized string
                 of the ifIndex that is fixed-length (i.e., 10) with
                 leading zero(s).  For example, the profile name for
                 ifIndex which equals '15' will be '0000000015'."
         ::= { adslLineAlarmConfProfileEntry 1}

         adslAtucThresh15MinLofs OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Loss of Frame Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAtucPerfLofsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 2}

         adslAtucThresh15MinLoss  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Loss of Signal Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAtucPerfLossThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 3}

         adslAtucThresh15MinLols  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Loss of Link Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAtucPerfLolsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 4}

         adslAtucThresh15MinLprs  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"

             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Loss of Power Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAtucPerfLprsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 5}

         adslAtucThresh15MinESs  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Errored Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAtucPerfESsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 6}

         adslAtucThreshFastRateUp OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Fast' channels only.
                 Configured change in rate causing an
                 adslAtucRateChangeTrap. A trap is produced when:
                 ChanCurrTxRate >= ChanPrevTxRate plus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 7}

         adslAtucThreshInterleaveRateUp OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Interleave' channels only.
                 Configured change in rate causing an

                 adslAtucRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate >= ChanPrevTxRate plus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 8}

         adslAtucThreshFastRateDown OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Fast' channels only.
                 Configured change in rate causing an
                 adslAtucRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate <= ChanPrevTxRate minus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 9 }

         adslAtucThreshInterleaveRateDown OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Interleave' channels only.
                 Configured change in rate causing an
                 adslAtucRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate <= ChanPrevTxRate minus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 10 }

         adslAtucInitFailureTrapEnable OBJECT-TYPE
             SYNTAX      INTEGER {
                 enable (1),
                 disable (2)
             }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Enables and disables the InitFailureTrap.  This
                 object is defaulted disable(2)."
         DEFVAL { disable }
         ::= { adslLineAlarmConfProfileEntry 11 }

         adslAturThresh15MinLofs OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create

             STATUS      current
             DESCRIPTION
                 "The number of Loss of Frame Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAturPerfLofsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 12 }

         adslAturThresh15MinLoss  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Loss of Signal Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAturPerfLossThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 13 }

         adslAturThresh15MinLprs  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Loss of Power Seconds
                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAturPerfLprsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 14 }

         adslAturThresh15MinESs  OBJECT-TYPE
             SYNTAX      INTEGER(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The number of Errored Seconds

                 encountered by an ADSL interface within any given 15
                 minutes performance data collection period, which
                 causes the SNMP agent to send an
                 adslAturPerfESsThreshTrap.
                 One trap will be sent per interval per interface.
                 A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 15 }

         adslAturThreshFastRateUp OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Fast' channels only.
                 Configured change in rate causing an
                 adslAturRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate >= ChanPrevTxRate plus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 16 }

         adslAturThreshInterleaveRateUp OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Interleave' channels only.
                 configured change in rate causing an
                 adslAturRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate >= ChanPrevTxRate plus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 17 }

         adslAturThreshFastRateDown OBJECT-TYPE
             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Fast' channels only.
                 Configured change in rate causing an
                 adslAturRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate <= ChanPrevTxRate minus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 18 }

         adslAturThreshInterleaveRateDown OBJECT-TYPE

             SYNTAX      Unsigned32
             UNITS       "bps"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "Applies to `Interleave' channels only.
                 Configured change in rate causing an
                 adslAturRateChangeTrap.  A trap is produced when:
                 ChanCurrTxRate <= ChanPrevTxRate minus the value of
                 this object. A value of `0' will disable the trap."
         ::= { adslLineAlarmConfProfileEntry 19 }

         adslLineAlarmConfProfileRowStatus OBJECT-TYPE
             SYNTAX          RowStatus
             MAX-ACCESS      read-create
             STATUS          current
             DESCRIPTION
                 "This object is used to create a new row or modify or
                 delete an existing row in this table.

                 A profile activated by setting this object to
                 `active'.  When `active' is set, the system
                 will validate the profile.

                 Before a profile can be deleted or taken out of
                 service, (by setting this object to `destroy' or
                 `outOfService') it must be first unreferenced
                 from all associated lines.

                 If the implementator of this MIB has chosen not
                 to implement `dynamic assignment' of profiles, this
                 object's MIN-ACCESS is read-only and its value
                 is always to be `active'."
         ::= { adslLineAlarmConfProfileEntry 20 }

         -- Line Code Specific Tables

         -- These are place holders for the Line Code Specific MIBs
         -- once they become available.

         adslLCSMib  OBJECT IDENTIFIER ::= { adslMibObjects 16 }

   -- trap definitions

   adslTraps OBJECT IDENTIFIER ::= { adslLineMib 2 }

   adslAtucTraps OBJECT IDENTIFIER ::= { adslTraps 1 }

         adslAtucPerfLofsThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinLofs,
                       adslAtucThresh15MinLofs }
             STATUS  current
             DESCRIPTION
                 "Loss of Framing 15-minute interval threshold reached."
         ::= { adslAtucTraps 0 1 }

         adslAtucPerfLossThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinLoss,
                       adslAtucThresh15MinLoss }
             STATUS  current
             DESCRIPTION
                 "Loss of Signal 15-minute interval threshold reached."
         ::= { adslAtucTraps 0 2 }

         adslAtucPerfLprsThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinLprs,
                       adslAtucThresh15MinLprs }
             STATUS  current
             DESCRIPTION
                 "Loss of Power 15-minute interval threshold reached."
         ::= { adslAtucTraps 0 3 }

         adslAtucPerfESsThreshTrap       NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinESs,
                       adslAtucThresh15MinESs }
             STATUS  current
             DESCRIPTION
                 "Errored Second 15-minute interval threshold reached."
         ::= { adslAtucTraps 0 4 }

         adslAtucRateChangeTrap  NOTIFICATION-TYPE
             OBJECTS { adslAtucChanCurrTxRate,
                       adslAtucChanPrevTxRate }
             STATUS  current
             DESCRIPTION
                 "The ATUCs transmit rate has changed (RADSL mode only)"
         ::= { adslAtucTraps 0 5 }

         adslAtucPerfLolsThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinLols,
                       adslAtucThresh15MinLols }
             STATUS  current
             DESCRIPTION
                 "Loss of Link 15-minute interval threshold reached."
         ::= { adslAtucTraps 0 6 }

         adslAtucInitFailureTrap NOTIFICATION-TYPE
             OBJECTS { adslAtucCurrStatus }
             STATUS  current
             DESCRIPTION
                 "ATUC initialization failed. See adslAtucCurrStatus
                 for potential reasons."
         ::= { adslAtucTraps 0 7 }

   adslAturTraps OBJECT IDENTIFIER ::= { adslTraps 2 }

         adslAturPerfLofsThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAturPerfCurr15MinLofs,
                       adslAturThresh15MinLofs }
             STATUS  current
             DESCRIPTION
                 "Loss of Framing 15-minute interval threshold reached."
         ::= { adslAturTraps 0 1 }

         adslAturPerfLossThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAturPerfCurr15MinLoss,
                       adslAturThresh15MinLoss }
             STATUS  current
             DESCRIPTION
                 "Loss of Signal 15-minute interval threshold reached."
         ::= { adslAturTraps 0 2 }

         adslAturPerfLprsThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAturPerfCurr15MinLprs,
                       adslAturThresh15MinLprs }
             STATUS  current
             DESCRIPTION
                 "Loss of Power 15-minute interval threshold reached."
         ::= { adslAturTraps 0 3 }

         adslAturPerfESsThreshTrap       NOTIFICATION-TYPE
             OBJECTS { adslAturPerfCurr15MinESs,
                       adslAturThresh15MinESs }
             STATUS  current
             DESCRIPTION
                 "Errored Second 15-minute interval threshold reached."
         ::= { adslAturTraps 0 4 }

         adslAturRateChangeTrap  NOTIFICATION-TYPE
             OBJECTS { adslAturChanCurrTxRate,
                       adslAturChanPrevTxRate }
             STATUS  current
             DESCRIPTION
                 "The ATURs transmit rate has changed (RADSL mode only)"

         ::= { adslAturTraps 0 5 }

         -- no adslAturPerfLolsThreshTrap possible { 0 6 }

         -- no adslAturInitFailureTrap possible { 0 7 }

   -- conformance information

   adslConformance OBJECT IDENTIFIER ::= { adslLineMib 3 }

   adslGroups OBJECT IDENTIFIER ::= { adslConformance 1 }
   adslCompliances OBJECT IDENTIFIER ::= { adslConformance 2 }

         -- ATU-C agent compliance statements

         adslLineMibAtucCompliance MODULE-COMPLIANCE
             STATUS  current
             DESCRIPTION
                 "The compliance statement for SNMP entities
                  which manage ADSL ATU-C interfaces."

             MODULE  -- this module
             MANDATORY-GROUPS
                {
                adslLineGroup, adslPhysicalGroup, adslChannelGroup,
                adslAtucPhysPerfIntervalGroup,
                adslAturPhysPerfIntervalGroup, adslLineConfProfileGroup,
                adslLineAlarmConfProfileGroup,
                adslLineConfProfileControlGroup
                }

             GROUP       adslAtucPhysPerfRawCounterGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require continuous ATU-C physical event counters
                  should implement this group."

             GROUP       adslAturPhysPerfRawCounterGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require continuous ATU-R physical event counters
                  should implement this group."

             GROUP       adslAtucChanPerformanceGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require ATU-C channel block event counters should
                  implement this group."

             GROUP       adslAturChanPerformanceGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require ATU-R channel block event counters should
                  implement this group."

             OBJECT      adslLineConfProfile
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable when static
                  profiles are implemented."

             OBJECT      adslAtucConfRateMode
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfRateChanRatio
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfTargetSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfMaxSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfMinSnrMgn
             MIN-ACCESS  read-wr
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfDownshiftSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfUpshiftSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfMinUpshiftTime
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucConfMinDownshiftTime
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucChanConfFastMinTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucChanConfInterleaveMinTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucChanConfFastMaxTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucChanConfInterleaveMaxTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucChanConfMaxInterleaveDelay
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfRateMode
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfRateChanRatio
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfTargetSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfMaxSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfMinSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfDownshiftSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfUpshiftSnrMgn
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfMinUpshiftTime
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturConfMinDownshiftTime
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturChanConfFastMinTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturChanConfInterleaveMinTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturChanConfFastMaxTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturChanConfInterleaveMaxTxRate
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturChanConfMaxInterleaveDelay
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslLineConfProfileRowStatus
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable only when static
                  profiles are implemented."

             OBJECT      adslLineAlarmConfProfile
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable only when static
                  profiles are implemented."

             OBJECT      adslAtucThresh15MinLofs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThresh15MinLoss
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThresh15MinLols
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThresh15MinLprs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThresh15MinESs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshFastRateUp
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshInterleaveRateUp
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshFastRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshInterleaveRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucInitFailureTrapEnable
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinLofs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinLoss
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinLprs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinESs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshFastRateUp
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshInterleaveRateUp
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshFastRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshInterleaveRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslLineAlarmConfProfileRowStatus
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable only when static
                  profiles are implemented."

         ::= { adslCompliances 1 }

         -- ATU-R agent compliance statements

         adslLineMibAturCompliance MODULE-COMPLIANCE
             STATUS  current
             DESCRIPTION
                 "The compliance statement for SNMP entities
                  which manage ADSL ATU-R interfaces."

             MODULE  -- this module
             MANDATORY-GROUPS
                 {
                 adslAturLineGroup, adslAturPhysicalGroup,
                 adslAturChannelGroup,
                 adslAturAtucPhysPerfIntervalGroup,
                 adslAturAturPhysPerfIntervalGroup,
                 adslAturLineAlarmConfProfileGroup,
                 adslAturLineConfProfileControlGroup
                 }

             GROUP       adslAturAtucPhysPerfRawCounterGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require continuous ATU-C physical event counters
                  should implement this group."

             GROUP       adslAturAturPhysPerfRawCounterGroup
             DESCRIPTION
                 "This group is optional.  Implementations which

                  require continuous ATU-R physical event counters
                  should implement this group."

             GROUP       adslAturAtucChanPerformanceGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require ATU-C channel block event counters should
                  implement this group."

             GROUP       adslAturAturChanPerformanceGroup
             DESCRIPTION
                 "This group is optional.  Implementations which
                  require ATU-R channel block event counters should
                  implement this group."

             OBJECT      adslLineAlarmConfProfile
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable only when static
                  profiles are implemented."

             OBJECT      adslAtucThresh15MinLofs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThresh15MinLoss
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThresh15MinESs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshFastRateUp
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshInterleaveRateUp
             MIN-ACCESS  read-write
             DESCRIPTION

                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucThreshFastRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAtucInitFailureTrapEnable
             MIN-ACCESS  read-write

             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinLofs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinLoss
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinLprs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThresh15MinESs
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshFastRateUp
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshInterleaveRateUp
             MIN-ACCESS  read-write

             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshFastRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslAturThreshInterleaveRateDown
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable when
                  static profiles are implemented."

             OBJECT      adslLineAlarmConfProfileRowStatus
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable only when static
                  profiles are implemented."

             OBJECT     adslAtucCurrStatus
             SYNTAX   BITS {
                            noDefect(0),
                            lossOfFraming(1),
                            lossOfSignal(2)
                           }
             DESCRIPTION
                 "It is allowable to implement only noDefect(0),
                 lossOfFraming(1) and lossOfSignal(2) by the ATU-R
                 agent."

        ::= { adslCompliances 2 }

         -- units of conformance
         adslLineGroup    OBJECT-GROUP
             OBJECTS {
                adslLineCoding, adslLineType, adslLineSpecific
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing configuration
                 information about an ADSL Line."
         ::= { adslGroups 1 }

         adslPhysicalGroup    OBJECT-GROUP
             OBJECTS {

                adslAtucInvSerialNumber, adslAtucInvVendorID,
                adslAtucInvVersionNumber, adslAtucCurrSnrMgn,
                adslAtucCurrAtn, adslAtucCurrStatus,
                adslAtucCurrOutputPwr, adslAtucCurrAttainableRate,
                adslAturInvSerialNumber, adslAturInvVendorID,
                adslAturInvVersionNumber, adslAturCurrSnrMgn,
                adslAturCurrAtn, adslAturCurrStatus,
                adslAturCurrOutputPwr, adslAturCurrAttainableRate
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing physical
                 configuration information of the ADSL Line."
         ::= { adslGroups 2 }

         adslChannelGroup    OBJECT-GROUP
             OBJECTS {
                adslAtucChanInterleaveDelay, adslAtucChanCurrTxRate,
                adslAtucChanPrevTxRate, adslAtucChanCrcBlockLength,
                adslAturChanInterleaveDelay, adslAturChanCurrTxRate,
                adslAturChanPrevTxRate, adslAturChanCrcBlockLength
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing configuration
                 information about an ADSL channel."
         ::= { adslGroups 3 }

         adslAtucPhysPerfRawCounterGroup OBJECT-GROUP
             OBJECTS {
                adslAtucPerfLofs, adslAtucPerfLoss,
                adslAtucPerfLols, adslAtucPerfLprs,
                adslAtucPerfESs, adslAtucPerfInits
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing raw performance
                 counts on an ADSL Line (ATU-C end)."
         ::= { adslGroups 4 }

         adslAtucPhysPerfIntervalGroup OBJECT-GROUP
             OBJECTS {
                adslAtucPerfValidIntervals,
                adslAtucPerfInvalidIntervals,
                adslAtucPerfCurr15MinTimeElapsed,
                adslAtucPerfCurr15MinLofs, adslAtucPerfCurr15MinLoss,
                adslAtucPerfCurr15MinLols, adslAtucPerfCurr15MinLprs,
                adslAtucPerfCurr15MinESs, adslAtucPerfCurr15MinInits,

                adslAtucPerfCurr1DayLofs, adslAtucPerfCurr1DayLoss,
                adslAtucPerfCurr1DayLols, adslAtucPerfCurr1DayLprs,
                adslAtucPerfCurr1DayESs, adslAtucPerfCurr1DayInits,
                adslAtucPerfPrev1DayMoniSecs,
                adslAtucPerfPrev1DayLofs, adslAtucPerfPrev1DayLoss,
                adslAtucPerfPrev1DayLols, adslAtucPerfPrev1DayLprs,
                adslAtucPerfPrev1DayESs, adslAtucPerfPrev1DayInits,
                adslAtucIntervalLofs, adslAtucIntervalLoss,
                adslAtucIntervalLols, adslAtucIntervalLprs,
                adslAtucIntervalESs, adslAtucIntervalInits,
                adslAtucIntervalValidData
                }

             STATUS     current
             DESCRIPTION
                 "A collection of objects providing current 15-minute,
                 1-day; and previous 1-day performance counts on
                 ADSL Line (ATU-C end) ."
         ::= { adslGroups 5 }

         adslAturPhysPerfRawCounterGroup OBJECT-GROUP
             OBJECTS {
                adslAturPerfLofs, adslAturPerfLoss,
                adslAturPerfLprs, adslAturPerfESs
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing raw performance
                 counts on an ADSL Line (ATU-R end)."
         ::= { adslGroups 6 }

         adslAturPhysPerfIntervalGroup OBJECT-GROUP
             OBJECTS {
                adslAturPerfValidIntervals,
                adslAturPerfInvalidIntervals,
                adslAturPerfCurr15MinTimeElapsed,
                adslAturPerfCurr15MinLofs, adslAturPerfCurr15MinLoss,
                adslAturPerfCurr15MinLprs, adslAturPerfCurr15MinESs,
                adslAturPerfCurr1DayTimeElapsed,
                adslAturPerfCurr1DayLofs, adslAturPerfCurr1DayLoss,
                adslAturPerfCurr1DayLprs, adslAturPerfCurr1DayESs,
                adslAturPerfPrev1DayMoniSecs,
                adslAturPerfPrev1DayLofs, adslAturPerfPrev1DayLoss,
                adslAturPerfPrev1DayLprs, adslAturPerfPrev1DayESs,
                adslAturIntervalLofs,
                adslAturIntervalLoss, adslAturIntervalLprs,
                adslAturIntervalESs, adslAturIntervalValidData
                }

             STATUS     current
             DESCRIPTION
                 "A collection of objects providing current 15-minute,
                 1-day; and previous 1-day performance counts on
                 ADSL Line (ATU-R end)."
         ::= { adslGroups 7 }

         adslAtucChanPerformanceGroup OBJECT-GROUP
             OBJECTS {
                adslAtucChanReceivedBlks,
                adslAtucChanTransmittedBlks,
                adslAtucChanCorrectedBlks,
                adslAtucChanUncorrectBlks,
                adslAtucChanPerfValidIntervals,
                adslAtucChanPerfInvalidIntervals,
                adslAtucChanPerfCurr15MinTimeElapsed,
                adslAtucChanPerfCurr15MinReceivedBlks,
                adslAtucChanPerfCurr15MinTransmittedBlks,
                adslAtucChanPerfCurr15MinCorrectedBlks,
                adslAtucChanPerfCurr15MinUncorrectBlks,
                adslAtucChanPerfCurr1DayTimeElapsed,
                adslAtucChanPerfCurr1DayReceivedBlks,
                adslAtucChanPerfCurr1DayTransmittedBlks,
                adslAtucChanPerfCurr1DayCorrectedBlks,
                adslAtucChanPerfCurr1DayUncorrectBlks,
                adslAtucChanPerfPrev1DayMoniSecs,
                adslAtucChanPerfPrev1DayReceivedBlks,
                adslAtucChanPerfPrev1DayTransmittedBlks,
                adslAtucChanPerfPrev1DayCorrectedBlks,
                adslAtucChanPerfPrev1DayUncorrectBlks,
                adslAtucChanIntervalReceivedBlks,
                adslAtucChanIntervalTransmittedBlks,
                adslAtucChanIntervalCorrectedBlks,
                adslAtucChanIntervalUncorrectBlks,
                adslAtucChanIntervalValidData
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing channel block
                 performance information on an ADSL channel
                 (ATU-C end)."
         ::= { adslGroups 8 }

         adslAturChanPerformanceGroup OBJECT-GROUP
             OBJECTS {
                adslAturChanReceivedBlks,
                adslAturChanTransmittedBlks,
                adslAturChanCorrectedBlks,

                adslAturChanUncorrectBlks,
                adslAturChanPerfValidIntervals,
                adslAturChanPerfInvalidIntervals,
                adslAturChanPerfCurr15MinTimeElapsed,
                adslAturChanPerfCurr15MinReceivedBlks,
                adslAturChanPerfCurr15MinTransmittedBlks,
                adslAturChanPerfCurr15MinCorrectedBlks,
                adslAturChanPerfCurr15MinUncorrectBlks,
                adslAturChanPerfCurr1DayTimeElapsed,
                adslAturChanPerfCurr1DayReceivedBlks,
                adslAturChanPerfCurr1DayTransmittedBlks,
                adslAturChanPerfCurr1DayCorrectedBlks,
                adslAturChanPerfCurr1DayUncorrectBlks,
                adslAturChanPerfPrev1DayMoniSecs,
                adslAturChanPerfPrev1DayReceivedBlks,
                adslAturChanPerfPrev1DayTransmittedBlks,
                adslAturChanPerfPrev1DayCorrectedBlks,
                adslAturChanPerfPrev1DayUncorrectBlks,
                adslAturChanIntervalReceivedBlks,
                adslAturChanIntervalTransmittedBlks,
                adslAturChanIntervalCorrectedBlks,
                adslAturChanIntervalUncorrectBlks,
                adslAturChanIntervalValidData
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing channel block
                 performance information on an ADSL channel
                 (ATU-C end)."
         ::= { adslGroups 9 }

         adslLineConfProfileGroup OBJECT-GROUP
             OBJECTS {
                adslAtucConfRateMode, adslAtucConfRateChanRatio,
                adslAtucConfTargetSnrMgn, adslAtucConfMaxSnrMgn,
                adslAtucConfMinSnrMgn,
                adslAtucConfDownshiftSnrMgn,
                adslAtucConfUpshiftSnrMgn,
                adslAtucConfMinUpshiftTime,
                adslAtucConfMinDownshiftTime,
                adslAtucChanConfFastMinTxRate,
                adslAtucChanConfInterleaveMinTxRate,
                adslAtucChanConfFastMaxTxRate,
                adslAtucChanConfInterleaveMaxTxRate,
                adslAtucChanConfMaxInterleaveDelay,
                adslAturConfRateMode, adslAturConfRateChanRatio,
                adslAturConfTargetSnrMgn, adslAturConfMaxSnrMgn,
                adslAturConfMinSnrMgn, adslAturConfDownshiftSnrMgn,

                adslAturConfUpshiftSnrMgn,
                adslAturConfMinUpshiftTime,
                adslAturConfMinDownshiftTime,
                adslAturChanConfFastMinTxRate,
                adslAturChanConfInterleaveMinTxRate,
                adslAturChanConfFastMaxTxRate,
                adslAturChanConfInterleaveMaxTxRate,
                adslAturChanConfMaxInterleaveDelay
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing provisioning
                 information about an ADSL Line."
         ::= { adslGroups 10 }

         adslLineAlarmConfProfileGroup OBJECT-GROUP
             OBJECTS {
                adslAtucThresh15MinLofs, adslAtucThresh15MinLoss,
                adslAtucThresh15MinLols, adslAtucThresh15MinLprs,
                adslAtucThresh15MinESs, adslAtucThreshFastRateUp,
                adslAtucThreshInterleaveRateUp,
                adslAtucThreshFastRateDown,
                adslAtucThreshInterleaveRateDown,
                adslAtucInitFailureTrapEnable,
                adslAturThresh15MinLofs, adslAturThresh15MinLoss,
                adslAturThresh15MinLprs, adslAturThresh15MinESs,
                adslAturThreshFastRateUp,
                adslAturThreshInterleaveRateUp,
                adslAturThreshFastRateDown,
                adslAturThreshInterleaveRateDown
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing alarm provisioning
                 information about an ADSL Line."
         ::= { adslGroups 11 }

         adslLineConfProfileControlGroup OBJECT-GROUP
             OBJECTS {
                adslLineConfProfile, adslLineAlarmConfProfile,
                adslLineConfProfileRowStatus,
                adslLineAlarmConfProfileRowStatus
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing profile
                 control for the ADSL system."
         ::= { adslGroups 12 }

         adslNotificationsGroup NOTIFICATION-GROUP
             NOTIFICATIONS {
                adslAtucPerfLofsThreshTrap,
                adslAtucPerfLossThreshTrap,
                adslAtucPerfLprsThreshTrap,
                adslAtucPerfESsThreshTrap,
                adslAtucRateChangeTrap,
                adslAtucPerfLolsThreshTrap,
                adslAtucInitFailureTrap,
                adslAturPerfLofsThreshTrap,
                adslAturPerfLossThreshTrap,
                adslAturPerfLprsThreshTrap,
                adslAturPerfESsThreshTrap,
                adslAturRateChangeTrap
                }
             STATUS        current
             DESCRIPTION
                 "The collection of adsl notifications."
         ::= { adslGroups 13 }

   -- units of conformance for ATU-R agent

            adslAturLineGroup    OBJECT-GROUP
                OBJECTS {
                   adslLineCoding
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing configuration
                    information about an ADSL Line on the ATU-R side."
            ::= { adslGroups 14 }

            adslAturPhysicalGroup    OBJECT-GROUP
                OBJECTS {
                   adslAtucInvVendorID,
                   adslAtucInvVersionNumber,
                   adslAtucCurrOutputPwr, adslAtucCurrAttainableRate,
                   adslAturInvSerialNumber, adslAturInvVendorID,
                   adslAturInvVersionNumber, adslAturCurrSnrMgn,
                   adslAturCurrAtn, adslAturCurrStatus,
                   adslAturCurrOutputPwr, adslAturCurrAttainableRate,
                   adslAtucCurrStatus
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing physical
                    configuration information of the ADSL Line on the
                    ATU-R side."

            ::= { adslGroups 15 }

            adslAturChannelGroup    OBJECT-GROUP
                OBJECTS {
                   adslAtucChanInterleaveDelay, adslAtucChanCurrTxRate,
                   adslAtucChanPrevTxRate,
                   adslAturChanInterleaveDelay, adslAturChanCurrTxRate,
                   adslAturChanPrevTxRate, adslAturChanCrcBlockLength
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing configuration
                   information about an ADSL channel on the ATU-R
                   side."
            ::= { adslGroups 16 }

            adslAturAtucPhysPerfRawCounterGroup OBJECT-GROUP
                OBJECTS {
                   adslAtucPerfLofs, adslAtucPerfLoss,
                   adslAtucPerfESs, adslAtucPerfInits
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing raw performance
                   counts on an ADSL Line (ATU-C end) provided by the
                   ATU-R agent."
            ::= { adslGroups 17 }

            adslAturAtucPhysPerfIntervalGroup OBJECT-GROUP
                OBJECTS {
                   adslAtucPerfValidIntervals,
                   adslAtucPerfInvalidIntervals,
                   adslAtucPerfCurr15MinTimeElapsed,
                   adslAtucPerfCurr15MinLofs, adslAtucPerfCurr15MinLoss,
                   adslAtucPerfCurr15MinESs, adslAtucPerfCurr15MinInits,
                   adslAtucPerfCurr1DayTimeElapsed,
                   adslAtucPerfCurr1DayLofs, adslAtucPerfCurr1DayLoss,
                   adslAtucPerfCurr1DayESs, adslAtucPerfCurr1DayInits,
                   adslAtucPerfPrev1DayMoniSecs,
                   adslAtucPerfPrev1DayLofs, adslAtucPerfPrev1DayLoss,
                   adslAtucPerfPrev1DayESs, adslAtucPerfPrev1DayInits,
                   adslAtucIntervalLofs, adslAtucIntervalLoss,
                   adslAtucIntervalESs, adslAtucIntervalInits,
                   adslAtucIntervalValidData
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing current

                   15-minute, 1-day; and previous 1-day performance
                   counts on ADSL Line (ATU-C end) provided by the
                   ATU-R agent."
            ::= { adslGroups 18 }

            adslAturAturPhysPerfRawCounterGroup OBJECT-GROUP
                OBJECTS {
                   adslAturPerfLofs, adslAturPerfLoss,
                   adslAturPerfLprs, adslAturPerfESs
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing raw performance
                   counts on an ADSL Line (ATU-R end) provided by the
                   ATU-R agent."
            ::= { adslGroups 19 }

            adslAturAturPhysPerfIntervalGroup OBJECT-GROUP
                OBJECTS {
                   adslAturPerfValidIntervals,
                   adslAturPerfInvalidIntervals,
                   adslAturPerfCurr15MinTimeElapsed,
                   adslAturPerfCurr15MinLofs, adslAturPerfCurr15MinLoss,
                   adslAturPerfCurr15MinLprs, adslAturPerfCurr15MinESs,
                   adslAturPerfCurr1DayTimeElapsed,
                   adslAturPerfCurr1DayLofs, adslAturPerfCurr1DayLoss,
                   adslAturPerfCurr1DayLprs, adslAturPerfCurr1DayESs,
                   adslAturPerfPrev1DayMoniSecs,
                   adslAturPerfPrev1DayLofs, adslAturPerfPrev1DayLoss,
                   adslAturPerfPrev1DayLprs, adslAturPerfPrev1DayESs,
                   adslAturIntervalLofs,
                   adslAturIntervalLoss, adslAturIntervalLprs,
                   adslAturIntervalESs, adslAturIntervalValidData
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing current
                   15-minute, 1-day; and previous 1-day performance
                   counts on ADSL Line (ATU-R end) provided by the
                   ATU-R agent."
            ::= { adslGroups 20 }

            adslAturAtucChanPerformanceGroup OBJECT-GROUP
                OBJECTS {
                   adslAtucChanReceivedBlks,
                   adslAtucChanTransmittedBlks,
                   adslAtucChanCorrectedBlks,
                   adslAtucChanUncorrectBlks,

                   adslAtucChanPerfCurr15MinTimeElapsed,
                   adslAtucChanPerfCurr15MinReceivedBlks,
                   adslAtucChanPerfCurr15MinTransmittedBlks,
                   adslAtucChanPerfCurr15MinCorrectedBlks,
                   adslAtucChanPerfCurr15MinUncorrectBlks,
                   adslAtucChanPerfCurr1DayTimeElapsed,
                   adslAtucChanPerfCurr1DayReceivedBlks,
                   adslAtucChanPerfCurr1DayTransmittedBlks,
                   adslAtucChanPerfCurr1DayCorrectedBlks,
                   adslAtucChanPerfCurr1DayUncorrectBlks,
                   adslAtucChanPerfPrev1DayMoniSecs,
                   adslAtucChanPerfPrev1DayReceivedBlks,
                   adslAtucChanPerfPrev1DayTransmittedBlks,
                   adslAtucChanPerfPrev1DayCorrectedBlks,
                   adslAtucChanPerfPrev1DayUncorrectBlks,
                   adslAtucChanPerfValidIntervals,
                   adslAtucChanPerfInvalidIntervals,
                   adslAtucChanIntervalReceivedBlks,
                   adslAtucChanIntervalTransmittedBlks,
                   adslAtucChanIntervalCorrectedBlks,
                   adslAtucChanIntervalUncorrectBlks,
                   adslAtucChanIntervalValidData
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing channel block
                    performance information on an ADSL channel
                    (ATU-C end) provided by the ATU-R agent."
            ::= { adslGroups 21 }

            adslAturAturChanPerformanceGroup OBJECT-GROUP
                OBJECTS {
                   adslAturChanReceivedBlks,
                   adslAturChanTransmittedBlks,
                   adslAturChanCorrectedBlks,
                   adslAturChanUncorrectBlks,
                   adslAturChanPerfValidIntervals,
                   adslAturChanPerfInvalidIntervals,
                   adslAturChanPerfCurr15MinTimeElapsed,
                   adslAturChanPerfCurr15MinReceivedBlks,
                   adslAturChanPerfCurr15MinTransmittedBlks,
                   adslAturChanPerfCurr15MinCorrectedBlks,
                   adslAturChanPerfCurr15MinUncorrectBlks,
                   adslAturChanPerfCurr1DayTimeElapsed,
                   adslAturChanPerfCurr1DayReceivedBlks,
                   adslAturChanPerfCurr1DayTransmittedBlks,
                   adslAturChanPerfCurr1DayCorrectedBlks,
                   adslAturChanPerfCurr1DayUncorrectBlks,

                   adslAturChanPerfPrev1DayMoniSecs,
                   adslAturChanPerfPrev1DayReceivedBlks,
                   adslAturChanPerfPrev1DayTransmittedBlks,
                   adslAturChanPerfPrev1DayCorrectedBlks,
                   adslAturChanPerfPrev1DayUncorrectBlks,
                   adslAturChanIntervalReceivedBlks,
                   adslAturChanIntervalTransmittedBlks,
                   adslAturChanIntervalCorrectedBlks,
                   adslAturChanIntervalUncorrectBlks,
                   adslAturChanIntervalValidData
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing channel block
                    performance information on an ADSL channel
                    (ATU-R end) provided by the ATU-R agent."
            ::= { adslGroups 22 }

            adslAturLineAlarmConfProfileGroup OBJECT-GROUP
                OBJECTS {
                   adslAtucThresh15MinLofs, adslAtucThresh15MinLoss,
                   adslAtucThresh15MinESs, adslAtucThreshFastRateUp,
                   adslAtucThreshInterleaveRateUp,
                   adslAtucThreshFastRateDown,
                   adslAtucThreshInterleaveRateDown,
                   adslAtucInitFailureTrapEnable,
                   adslAturThresh15MinLofs, adslAturThresh15MinLoss,
                   adslAturThresh15MinLprs, adslAturThresh15MinESs,
                   adslAturThreshFastRateUp,
                   adslAturThreshInterleaveRateUp,
                   adslAturThreshFastRateDown,
                   adslAturThreshInterleaveRateDown
                   }
                STATUS     current
                DESCRIPTION
                    "A collection of objects providing alarm
   provisioning
                    information about an ADSL Line provided by the
                    ATU-R agent."
            ::= { adslGroups 23 }

            adslAturLineConfProfileControlGroup OBJECT-GROUP
                OBJECTS {
                   adslLineAlarmConfProfile,
                   adslLineAlarmConfProfileRowStatus
                   }
                STATUS     current
                DESCRIPTION

                    "A collection of objects providing profile
                    control for the ADSL system by the ATU-R agent."
            ::= { adslGroups 24 }

            adslAturNotificationsGroup NOTIFICATION-GROUP
                NOTIFICATIONS {
                    adslAtucPerfLofsThreshTrap,
                    adslAtucPerfLossThreshTrap,
                    adslAtucPerfESsThreshTrap,
                    adslAtucRateChangeTrap,
                    adslAturPerfLofsThreshTrap,
                    adslAturPerfLossThreshTrap,
                    adslAturPerfLprsThreshTrap,
                    adslAturPerfESsThreshTrap,
                    adslAturRateChangeTrap
                    }
                STATUS        current
                DESCRIPTION
                    "The collection of ADSL notifications implemented by
                    the ATU-R agent."
            ::= { adslGroups 25 }

   END

8.  Acknowledgments

   The current authors/editors are:

         Gregory Bathrick (AG Communication Systems)
         Faye Ly (Copper Mountain Networks)

   Input from the ADSL Forum was edited by:

         Gregory Bathrick (AG Communication Systems)
         John Burgess (Predictive Systems)

   Contributions have been received from, but not limited to the
   following. (in alphabetical order)

      David Allen (Nortel)
      Rajesh Abbi (Alcatel)
      Gregory Bathrick (AG Communication Systems)
      Umberto Bonollo (NEC)
      John Burgess (Predictive Systems)
      Gail Cone (Amati)
      Andrew Cheers (NEC)
      Peter Duffy (Atlantech)
      Kevin Godfrey (Motorola)
      Bill Hong (Diamond Lane)
      Bob Jenness (Siemens)
      Lars Johansson (Ericsson)
      Jeff Johnson (RedBack Network)
      Tsu Kai Lu (DSC)
      Faye Ly (Copper Mountain Networks)
      Gigi Karmous-Edwards (Pulsecom)
      Ron Knipper (Diamond Lane)
      Adil Masood (AG Communication Systems)
      Padmore Peterson (BT)
      Anna Salguero (SBC)
      Donald Simon (Motorola)
      Mike Sneed (Pulsecom)
      Ted Soo-Hoo (Pulsecom)
      John Stehman (Diamond Lane)
      Chuck Storry (Newbridge)
      Chi-Lin Tom (AFC)
      Frank Van der Putten (Alcatel)
      Marc Van Vlimmeren (Alcatel)
      Bert Wijnen (IBM)

9.  References

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

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

    [3]  ADSL Forum TR-005, "Network Management Element Management",
         March 1998.

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

    [5]  McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB
         using SMIv2", RFC 2233, November 1997.

    [6]  Case, J., McCloghrie, K., Rose, M. and S. Waldbusser,
         "Management Information Base for version 2 of the Simple
         Network Management Protocol (SNMPv2)", RFC 1907, January 1996.

    [7]  Case, J., Fedor, M., Schoffstall, M. and J. Davin. " A Simple
         Network Management Protocol (SNMP)", STD 15, RFC 1157, May
         1990.

    [8]  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.

    [9]  ADSL Forum TR-006, "SNMP-based ADSL Line MIB", March 1998.

   [10]  American National Standards Institute, ANSI T1.413-1995, August
         1995.

   [11]  ADSL Forum WT-014, "DMT Line Code Specific MIB", February 1999.

   [12]  ADSL Forum WT-015, "CAP Line Code Specific MIB", February 1999.

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

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

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

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

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

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

   [19]  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.

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

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

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

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

   [24]  Ahmed, M. and K. Tesink, Editors, "Definitions of Managed
         Objects for ATM Management Version 8.0 using SMIv2", RFC 1695,
         August 1994.

   [25]  McCloghrie, K. and A. Bierman, "Entity MIB", RFC 2037, October
         1996.

   [26]  Yergeau, F., "UTF-8, a transformation format of ISO 10646", RFC
         2279, January 1998.

10.  Security Considerations

   1) Blocking unauthorized access to the ADSL 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 (sect 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 trap thresholds such as
   SNR margins.

   2) There are a number of managed objects in this MIB that may be
   considered to contain sensitive information.  In particular, the
   certain objects may be considered sensitive in many environments,
   since it would allow an intruder to obtain information about which
   vendor's equipment is in use on the network.  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.

   SNMPv1 by itself is such an insecure environment.  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 (read) the objects in this MIB.  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 [21] and the View-based Access Control Model
   RFC 2575 [23] is recommended.

   It is then a customer/user 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.

   3) ADSL layer connectivity from the ATU-R will permit the subscriber
   to manipulate both the ADSL link directly and the AOC/EOC channels
   for their own loop.  For example,  unchecked or unfiltered
   fluctuations initiated by the subscriber could generate sufficient
   traps to potentially overwhelm either the management interface to the
   network or the element manager.  Other attacks affecting the ATU-R
   portions of the MIB may also be possible.

   11. 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 implementers 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.

12.  Authors' Addresses

   Gregory Bathrick
   AG Communication Systems
   [A Subsidiary of Lucent Technologies]
   2500 W Utopia Rd.
   Phoenix, AZ 85027 USA

   Phone: +1 602-582-7679
   Fax:   +1 602-582-7697
   EMail: bathricg@agcs.com

   Faye Ly
   Copper Mountain Networks
   Norcal Office
   2470 Embarcadero Way
   Palo Alto, CA 94303

   Phone: +1 650-858-8500
   Fax:   +1 650-858-8085
   EMail: faye@coppermountain.com

13.  Full Copyright Statement

   Copyright (C) The Internet Society (1999).  All Rights Reserved.

   This document and translations of it may be copied and furnished to
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Acknowledgement

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

 

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