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RFC 3440 - Definitions of Extension Managed Objects for Asymmetr


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Network Working Group                                              F. Ly
Request for Comments: 3440                             Pedestal Networks
Category: Standards Track                                    G. Bathrick
                                                                   Nokia
                                                           December 2002

                Definitions of Extension Managed Objects
                for Asymmetric Digital Subscriber 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 (2002).  All Rights Reserved.

Abstract

   This memo defines a portion of the Management Information Base (MIB)
   for use with network management protocols in the Internet community.
   In particular, it describes additional managed objects used for
   managing Asymmetric Digital Subscriber Line (ADSL) interfaces not
   covered by the ADSL Line MIB (RFC 2662).

Table of Contents

   1.  The Internet-Standard Management Framework ................. 2
   2.  Introduction ............................................... 2
   3.  Relationship of ADSL LINE EXTENSION MIB with standard MIBs . 2
   4.  Conventions used in the MIB ................................ 2
   5.  Conformance and Compliance ................................. 6
   6.  Definitions ................................................ 6
   7.  Acknowledgments ............................................31
   8.  References .................................................31
   9.  Security Considerations ....................................32
   10. Intellectual Property Notice ...............................34
   11. Authors' Addresses .........................................35
   12. Full Copyright Statement ...................................36

1.  The Internet-Standard Management Framework

   For a detailed overview of the documents that describe the current
   Internet-Standard Management Framework, please refer to section 7 of
   RFC 3410 [RFC3410].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  MIB objects are generally
   accessed through the Simple Network Management Protocol (SNMP).
   Objects in the MIB are defined using the mechanisms defined in the
   Structure of Management Information (SMI).  This memo specifies a MIB
   module that is compliant to the SMIv2, which is described in STD 58,
   RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
   [RFC2580].

2.  Introduction

   The purpose of this memo is to define a supplemental set of managed
   objects that is not covered by the ADSL Line MIB as defined in
   [RFC2662].  This memo addresses the additional objects defined in ITU
   G.997.1 [ITU G.997.1].

3.  Relationship of ADSL Line Extension MIB with standard MIBs

   This section outlines the relationship of the ADSL Line Extension MIB
   with other MIBs described in RFCs and in their various degrees of
   standardization.  In regards to these relationships, the ADSL Line
   Extension MIB follows conventions as used by the ADSL Line MIB with
   one exception.  The value of the RFC 2863 object, ifOperstatus, SHALL
   be down(2) when the ADSL line interface is in power state L3, as
   defined in ITU G.992.1 [ITU G.992.1], which means no power.  Its
   value shall be up(1) if the ADSL line interface is in power state L0
   (power on) [ITU G.992.1] or L1 (reduced power).  Power Status L2 [ITU
   G.992.1] is not applicable.

4.  Conventions used in the MIB

4.1  Structure

   The MIB is organized to follow the same structure of the ADSL Line
   MIB [RFC2662].

4.2  Additional Managed Objects

   Objects specific to the management of ADSL G.Lite as defined in ITU
   G.992.2 [ITU G.992.2] are:

   - ADSL Transceiver Unit - Central Office End (ATU-C)
     Transmission System and Line Mode
   - Power Management
   - Counters for Fast Retrains and Failed Fast Retrains
   - Counters for Severe Error Second-line and Unavailable Second
   - Alternative profile configuration for the Dual line mode
     interface

   Besides the management of G.Lite, another object has been added in
   order to manage the ADSL line profile.  The object is the line mode
   configuration.

4.2.1 ATU-C ADSL Transmission System Parameters and Line Mode

   The adslLineConfigTable needs to be extended to cover control of the
   ATU-C ADSL Transmission system.  Three objects are defined to monitor
   and configure the transmission mode as well as the actual line mode:

     - Capability
     - Configuration
     - Actual Status

   Transmission modes can further determine the line mode of the ADSL
   interface.  For example, if g9921PotsNonOverlapped(2) is the actual
   value of the ADSL interface, the interface is operating in Full rate
   ADSL.  If the interface is set to g9922PotsOverlapped(9), the
   interface is operating in G.Lite mode.

   The transmission mode and the corresponding line mode are defined as:

        Transmission mode                        Line Mode
        ----------------------------------------------------------
        Regional Std. (ANSI T1.413)              Full
           [ANSI T1.413]
        Regional Std. (ETSI DTS/TM06006)         Full
           [ETSI DTS/TM06006]
        G.992.1 [ITU G992.1] POTS non-overlapped Full
        G.992.1 POTS overlapped                  Full
        G.992.1 Integrated Services Digital
           Network (ISDN) non-overlapped         Full
        G.992.1 ISDN overlapped                  Full
        G.992.1 TCM-ISDN non-overlapped          Full
        G.992.1 TCM-ISDN overlapped              Full
        G.992.2 POTS non-overlapped              G.Lite
        G.992.2 POTS overlapped                  G.Lite
        G.992.2 with TCM-ISDN                    G.Lite
            non-overlapped
        G.992.2 with TCM-ISDN overlapped         G.Lite
        G.992.1 TCM-ISDN symmetric               Full

                Table 1: Transmission Mode and Line Mode

   In case more than one bit is configured for an ADSL interface and
   both Full and G.Lite modes are selected, the interface is said to be
   configured in the dual mode.  Only one bit can be set in the Actual
   object that reflects the actual mode of transmission as well as the
   line mode.

4.2.2 Power Management

   There are three possible power states for each managed ADSL interface
   operating in the G.Lite mode.  L0 is power on, L1 is power on but
   reduced and L3 is power off.  Power state cannot be configured by an
   operator but it can be viewed via the ifOperStatus object for the
   managed ADSL interface.  The value of the object ifOperStatus is set
   to down(2) if the ADSL interface is in power state L3 and is set to
   up(1) if the ADSL line interface is in power state L0 or L1.

   An ADSL line power state, if the interface is operating in the G.Lite
   mode, can also be monitored by the adslLineGlitePowerState object
   defined in the ADSL Line Extension table.  The value of the object
   enumerates the three power states attainable by the managed
   interface.

4.2.3 Fast Retrain Parameters

   Section 7.4.15 [ITU G.997.1] specifies fast retrain parameters.  Fast
   retrain parameters include two counters: fast retrain count and
   failed fast retrain count.  These two counters have been added to all
   performance tables.

4.2.4 Counters for Severely Errored Second-line and Unavailable
      Seconds-line

   ITU G.997.1 sections 6.2.1.1.7 and 6.2.1.1.9 specify two counters
   that are not covered by the ADSL Line MIB [RFC2662].  These two
   counters (severely errored seconds-line and unavailable seconds-line)
   are added to all the performance tables.

   Unavailable seconds counts the cumulative number of seconds in which
   the interface was unavailable during the measured period.  This
   counter does not include the seconds in which unavailability was
   caused solely by fast retrains and failed fast retrains.  Fast
   retrains and failed fast retrains are considered to be part of the
   normal network operation and thus are not counted as unavailable
   errors.

4.2.5  Counters, Interval Buckets and Thresholds

   For physical-level events, there are 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.   Threshold
   notification can be configured for each physical-layer current 15-
   minute bucket.

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

4.2.6 Alternative profile configuration for the dual line mode interface

   The object, adslLineConfProfileDualLite, is used only when the
   interface (the ADSL line and, if applicable, channel) is configured
   as dual mode, that is, the object adslLineTransAtucConfig is
   configured with one or more full-rate modes and one or more G.Lite
   modes.

   The object adslLineConfProfile defined in ADSL-MIB [RFC2662] is used
   as the primary full-rate profile.  The newly added object in this MIB
   module, adslLineConfProfileDualLite, is used to describe and
   configure the G.Lite profile.  Note that if one or more full-rate
   modes are configured, or only G.Lite modes are configured, only the
   original full-rate profile is needed.  The dual-mode profile object
   is only needed when both full-rate and G.Lite profiles are needed.
   In this case, it will be set to the value of adslLineConfProfile when
   'dynamic' profiles are implemented.

   When 'static' profiles are implemented, however, similar to the case
   of the object, adslLineConfProfileName [RFC2662], this object's value
   will need to algorithmically represent the line.  In this case, the
   value of the line's ifIndex plus a value indicating the line mode
   type (e.g., G.Lite, Full-rate) will be used.  Therefore, the
   profile's name is a string of the concatenation of the ifIndex and
   one of the following values: Full or Lite.  This string will be
   fixed-length (i.e., 14) with leading zero(s).  For example, the
   profile name for ifIndex that equals '15' and is a full rate line
   will be '0000000015Full'.

5.  Conformance and Compliance

   See the conformance and compliance statements within the information
   module.

6.  Definitions

ADSL-LINE-EXT-MIB DEFINITIONS ::= BEGIN

   IMPORTS
      Counter32,
      Integer32,
      NOTIFICATION-TYPE,
      MODULE-IDENTITY,
      OBJECT-TYPE                       FROM SNMPv2-SMI
      MODULE-COMPLIANCE, OBJECT-GROUP,
      NOTIFICATION-GROUP                FROM SNMPv2-CONF
      TEXTUAL-CONVENTION                FROM SNMPv2-TC
      PerfCurrentCount,

      PerfIntervalCount                 FROM PerfHist-TC-MIB
      AdslPerfCurrDayCount,
      AdslPerfPrevDayCount              FROM ADSL-TC-MIB
      SnmpAdminString                   FROM SNMP-FRAMEWORK-MIB
      adslLineAlarmConfProfileEntry,
      adslLineConfProfileEntry,
      adslAturIntervalEntry,
      adslAturPerfDataEntry,
      adslAtucIntervalEntry,
      adslAtucPerfDataEntry,
      adslLineEntry,
      adslMIB                           FROM ADSL-LINE-MIB
      ;

   adslExtMIB MODULE-IDENTITY

   LAST-UPDATED "200212100000Z"  -- 10 Dec 2002

   ORGANIZATION "IETF ADSL MIB Working Group"

   CONTACT-INFO
         "
          Faye Ly
          Pedestal Networks
          6503 Dumbarton Circle,
          Fremont, CA 94555
          Tel: +1 510-578-0158
          Fax: +1 510-744-5152
          E-Mail: faye@pedestalnetworks.com

          Gregory Bathrick
          Nokia Networks
          2235 Mercury Way,
          Fax: +1 707-535-7300
          E-Mail: greg.bathrick@nokia.com

          General Discussion:adslmib@ietf.org
          To Subscribe: https://www1.ietf.org/mailman/listinfo/adslmib
          Archive: https://www1.ietf.org/mailman/listinfo/adslmib
          "
   DESCRIPTION
           "Copyright (C) The Internet Society (2002). This version of
           this MIB module is part of RFC 3440; see the RFC itself for
           full legal notices.

           This MIB Module is a supplement to the ADSL-LINE-MIB
           [RFC2662]."

   REVISION     "200212100000Z"  -- 10 dec 2002
   DESCRIPTION  "Initial Version, published as RFC 3440. This MIB
                 module supplements the ADSL-LINE-MIB [RFC2662]."
          ::= { adslMIB 3 }

       adslExtMibObjects  OBJECT IDENTIFIER ::= { adslExtMIB 1 }

       AdslTransmissionModeType ::= TEXTUAL-CONVENTION
           STATUS       current
           DESCRIPTION
               "A set of ADSL line transmission modes, with one bit
                per mode.  The notes (F) and (L) denote Full-Rate
                and G.Lite respectively:
                  Bit 00 : Regional Std. (ANSI T1.413) (F)
                  Bit 01 : Regional Std. (ETSI DTS/TM06006) (F)
                  Bit 02 : G.992.1 POTS non-overlapped (F)
                  Bit 03 : G.992.1 POTS overlapped (F)
                  Bit 04 : G.992.1 ISDN non-overlapped (F)
                  Bit 05 : G.992.1 ISDN overlapped (F)
                  Bit 06 : G.992.1 TCM-ISDN non-overlapped (F)
                  Bit 07 : G.992.1 TCM-ISDN overlapped (F)
                  Bit 08 : G.992.2 POTS non-overlapped (L)
                  Bit 09 : G.992.2 POTS overlapped (L)
                  Bit 10 : G.992.2 with TCM-ISDN non-overlapped (L)
                  Bit 11 : G.992.2 with TCM-ISDN overlapped (L)
                  Bit 12 : G.992.1 TCM-ISDN symmetric (F)
               "
           SYNTAX      BITS {
               ansit1413(0),
               etsi(1),
               q9921PotsNonOverlapped(2),
               q9921PotsOverlapped(3),
               q9921IsdnNonOverlapped(4),
               q9921isdnOverlapped(5),
               q9921tcmIsdnNonOverlapped(6),
               q9921tcmIsdnOverlapped(7),
               q9922potsNonOverlapeed(8),
               q9922potsOverlapped(9),
               q9922tcmIsdnNonOverlapped(10),
               q9922tcmIsdnOverlapped(11),
               q9921tcmIsdnSymmetric(12)
           }

         adslLineExtTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslLineExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION

                 "This table is an extension of RFC 2662.  It
                  contains ADSL line configuration and
                  monitoring information. This includes the ADSL
                  line's capabilities and actual ADSL transmission
                  system."
         ::= { adslExtMibObjects 17 }

         adslLineExtEntry   OBJECT-TYPE
             SYNTAX          AdslLineExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "An entry extends the adslLineEntry defined in
                  [RFC2662].  Each entry corresponds to an ADSL
                  line."
             AUGMENTS { adslLineEntry }
         ::= { adslLineExtTable 1 }

         AdslLineExtEntry ::=
             SEQUENCE {
             adslLineTransAtucCap        AdslTransmissionModeType,
             adslLineTransAtucConfig     AdslTransmissionModeType,
             adslLineTransAtucActual     AdslTransmissionModeType,
             adslLineGlitePowerState     INTEGER,
             adslLineConfProfileDualLite SnmpAdminString
             }

         adslLineTransAtucCap OBJECT-TYPE
             SYNTAX      AdslTransmissionModeType
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The transmission modes, represented by a
                  bitmask that the ATU-C is capable of
                  supporting.  The modes available are limited
                  by the design of the equipment."
             REFERENCE "Section 7.3.2 ITU G.997.1"
         ::= { adslLineExtEntry 1 }

         adslLineTransAtucConfig OBJECT-TYPE
             SYNTAX      AdslTransmissionModeType
             MAX-ACCESS  read-write
             STATUS      current

             DESCRIPTION
                 "The transmission modes, represented by a bitmask,
                  currently enabled by the ATU-C.  The manager can
                  only set those modes that are supported by the

                  ATU-C.  An ATU-C's supported modes are provided by
                  AdslLineTransAtucCap."
             REFERENCE "Section 7.3.2 ITU G.997.1"
         ::= { adslLineExtEntry 2 }

         adslLineTransAtucActual OBJECT-TYPE
             SYNTAX      AdslTransmissionModeType
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The actual transmission mode of the ATU-C.
                  During ADSL line initialization, the ADSL
                  Transceiver Unit - Remote terminal end (ATU-R)
                  will determine the mode used for the link.
                  This value will be limited a single transmission
                  mode that is a subset of those modes enabled
                  by the ATU-C and denoted by
                  adslLineTransAtucConfig. After an initialization
                  has occurred, its mode is saved as the 'Current'
                  mode and is persistence should the link go
                  down. This object returns 0 (i.e. BITS with no
                  mode bit set) if the mode is not known."
             REFERENCE "Section 7.3.2 ITU G.997.1 "
         ::= { adslLineExtEntry 3 }

         adslLineGlitePowerState OBJECT-TYPE
             SYNTAX      INTEGER {
                         none(1),
                         l0(2),          -- L0 Power on
                         l1(3),          -- L1 Power on but reduced
                         l3(4)           -- L3 Power off
                         }
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object specifies the power
                  state of this interface.  L0 is power on, L1 is
                  power on but reduced and L3 is power off.  Power
                  state cannot be configured by an operator but it
                  can be viewed via the ifOperStatus object for the
                  managed ADSL interface.  The value of the object
                  ifOperStatus is set to down(2) if the ADSL
                  interface is in power state L3 and is set to up(1)
                  if the ADSL line interface is in power state L0 or
                  L1. If the object adslLineTransAtucActual is set to
                  a G.992.2 (G.Lite)-type transmission mode, the
                  value of this object will be one of the valid power
                  states: L0(2), L1(3), or L3(4).  Otherwise, its

                  value will be none(1)."
         ::= { adslLineExtEntry 4 }

         adslLineConfProfileDualLite OBJECT-TYPE
             SYNTAX SnmpAdminString
             MAX-ACCESS  read-write
             STATUS current
             DESCRIPTION
                 "This object extends the definition an ADSL line and
                  associated channels (when applicable) for cases
                  when it is configured in dual mode, and operating
                  in a G.Lite-type mode as denoted by
                  adslLineTransAtucActual.  Dual mode exists when the
                  object, adslLineTransAtucConfig, is configured with
                  one or more full-rate modes and one or more G.Lite
                  modes simultaneously.

                  When 'dynamic' profiles are implemented, the value
                  of object is equal to the index of the applicable
                  row in the ADSL Line Configuration Profile Table,
                  AdslLineConfProfileTable defined in ADSL-MIB
                  [RFC2662].

                  In the case when dual-mode has not been enabled,
                  the value of the object will be equal to the value
                  of the object adslLineConfProfile [RFC2662].

                  When `static' profiles are implemented, in much
                  like the case of the object,
                  adslLineConfProfileName [RFC2662], this object's
                  value will need to algorithmically represent the
                  characteristics of the line.  In this case, the
                  value of the line's ifIndex plus a value indicating
                  the line mode type (e.g., G.Lite, Full-rate) will
                  be used. Therefore, the profile's name is a string
                  concatenating the ifIndex and one of the follow
                  values: Full or Lite. This string will be
                  fixed-length (i.e., 14) with leading zero(s).  For
                  example, the profile name for ifIndex that equals
                  '15' and is a full rate line, it will be
                  '0000000015Full'."
             REFERENCE "Section 5.4 Profiles, RFC 2662"
         ::= { adslLineExtEntry 5 }

         adslAtucPerfDataExtTable   OBJECT-TYPE

             SYNTAX          SEQUENCE OF AdslAtucPerfDataExtEntry
             MAX-ACCESS      not-accessible

             STATUS          current
             DESCRIPTION
                 "This table extends adslAtucPerfDataTable [RFC2662]
                  with additional ADSL physical line counter
                  information such as unavailable seconds-line and
                  severely errored seconds-line."
         ::= { adslExtMibObjects 18 }

         adslAtucPerfDataExtEntry   OBJECT-TYPE
             SYNTAX          AdslAtucPerfDataExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "An entry extends the adslAtucPerfDataEntry defined
                  in [RFC2662].  Each entry corresponds to an ADSL
                  line."
         AUGMENTS { adslAtucPerfDataEntry }
         ::= { adslAtucPerfDataExtTable 1 }

         AdslAtucPerfDataExtEntry ::=
             SEQUENCE {
             adslAtucPerfStatFastR            Counter32,
             adslAtucPerfStatFailedFastR      Counter32,
             adslAtucPerfStatSesL             Counter32,
             adslAtucPerfStatUasL             Counter32,
             adslAtucPerfCurr15MinFastR       PerfCurrentCount,
             adslAtucPerfCurr15MinFailedFastR PerfCurrentCount,
             adslAtucPerfCurr15MinSesL        PerfCurrentCount,
             adslAtucPerfCurr15MinUasL        PerfCurrentCount,
             adslAtucPerfCurr1DayFastR        AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayFailedFastR  AdslPerfCurrDayCount,
             adslAtucPerfCurr1DaySesL         AdslPerfCurrDayCount,
             adslAtucPerfCurr1DayUasL         AdslPerfCurrDayCount,
             adslAtucPerfPrev1DayFastR        AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayFailedFastR  AdslPerfPrevDayCount,
             adslAtucPerfPrev1DaySesL         AdslPerfPrevDayCount,
             adslAtucPerfPrev1DayUasL         AdslPerfPrevDayCount
         }

         adslAtucPerfStatFastR OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "line retrains"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object reports the count of
                  the number of fast line bs since last
                  agent reset."

             REFERENCE "ITU G.997.1 Section 7.4.15.1 "
         ::= { adslAtucPerfDataExtEntry 1 }

         adslAtucPerfStatFailedFastR OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "line retrains"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object reports the count of
                  the number of failed fast line retrains since
                  last agent reset."
             REFERENCE "ITU G.997.1 Section 7.4.15.2 "
         ::= { adslAtucPerfDataExtEntry 2 }

         adslAtucPerfStatSesL OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object reports the count of
                  the number of severely errored seconds-line since
                  last agent reset."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.7 "
         ::= { adslAtucPerfDataExtEntry 3 }

         adslAtucPerfStatUasL OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object reports the count of
                  the number of unavailable seconds-line since
                  last agent reset."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.9 "
         ::= { adslAtucPerfDataExtEntry 4 }

         adslAtucPerfCurr15MinFastR OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current 15-minute interval,
                  adslAtucPerfCurr15MinFastR reports the current
                  number of seconds during which there have been

                  fast retrains."
             REFERENCE "ITU G.997.1 Section 7.4.15.1 "
         ::= { adslAtucPerfDataExtEntry 5 }

         adslAtucPerfCurr15MinFailedFastR   OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current 15-minute interval,
                  adslAtucPerfCurr15MinFailedFastR reports the
                  current number of seconds during which there
                  have been failed fast retrains."
             REFERENCE "ITU G.997.1 Section 7.4.15.2 "
         ::= { adslAtucPerfDataExtEntry 6 }

         adslAtucPerfCurr15MinSesL OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current 15-minute interval,
                  adslAtucPerfCurr15MinSesL reports the current
                  number of seconds during which there have been
                  severely errored seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.7 "
         ::= { adslAtucPerfDataExtEntry 7 }

         adslAtucPerfCurr15MinUasL   OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current 15-minute interval,
                  adslAtucPerfCurr15MinUasL reports the current
                  number of seconds during which there have been
                  unavailable seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.9 "
         ::= { adslAtucPerfDataExtEntry 8 }

         adslAtucPerfCurr1DayFastR    OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "For the current day as measured by
                  adslAtucPerfCurr1DayTimeElapsed [RFC2662],
                  adslAtucPerfCurr1DayFastR reports the number
                  of seconds during which there have been
                  fast retrains."
             REFERENCE "ITU G.997.1 Section 7.4.15.1 "
         ::= { adslAtucPerfDataExtEntry 9 }

         adslAtucPerfCurr1DayFailedFastR    OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current day as measured by
                  adslAtucPerfCurr1DayTimeElapsed [RFC2662],
                  adslAtucPerfCurr1DayFailedFastR reports the
                  number of seconds during which there have been
                  failed fast retrains."
             REFERENCE "ITU G.997.1 Section 7.4.15.2 "
         ::= { adslAtucPerfDataExtEntry 10 }

         adslAtucPerfCurr1DaySesL    OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current day as measured by
                  adslAtucPerfCurr1DayTimeElapsed [RFC2662],
                  adslAtucPerfCurr1DaySesL reports the
                  number of seconds during which there have been
                  severely errored seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.7 "
         ::= { adslAtucPerfDataExtEntry 11 }

         adslAtucPerfCurr1DayUasL    OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current day as measured by
                  adslAtucPerfCurr1DayTimeElapsed [RFC2662],
                  adslAtucPerfCurr1DayUasL reports the
                  number of seconds during which there have been
                  unavailable seconds-line."

             REFERENCE "ITU G.997.1 Section 7.2.1.1.9 "
         ::= { adslAtucPerfDataExtEntry 12 }

         adslAtucPerfPrev1DayFastR     OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the previous day, adslAtucPerfPrev1DayFastR
                  reports the number of seconds during which there
                  were fast retrains."
             REFERENCE "ITU G.997.1 Section 7.4.15.1 "
         ::= { adslAtucPerfDataExtEntry 13 }

         adslAtucPerfPrev1DayFailedFastR OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the previous day,
                  adslAtucPerfPrev1DayFailedFastR reports the number
                  of seconds during which there were failed fast
                  retrains."
             REFERENCE "ITU G.997.1 Section 7.4.15.2 "
         ::= { adslAtucPerfDataExtEntry 14 }

         adslAtucPerfPrev1DaySesL     OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the previous day, adslAtucPerfPrev1DaySesL
                  reports the number of seconds during which there
                  were severely errored seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.7 "
         ::= { adslAtucPerfDataExtEntry 15 }

         adslAtucPerfPrev1DayUasL OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the previous day, adslAtucPerfPrev1DayUasL
                  reports the number of seconds during which there

                  were unavailable seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.9 "
         ::= { adslAtucPerfDataExtEntry 16 }

         adslAtucIntervalExtTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAtucIntervalExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATU-C
                  performance data collection interval for
                  ADSL physical interfaces whose
                  IfEntries' ifType is equal to adsl(94)."
         ::= { adslExtMibObjects 19 }

         adslAtucIntervalExtEntry   OBJECT-TYPE
             SYNTAX          AdslAtucIntervalExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the
                              adslAtucIntervalExtTable."
             AUGMENTS        { adslAtucIntervalEntry }
         ::= { adslAtucIntervalExtTable 1 }

         AdslAtucIntervalExtEntry ::=
             SEQUENCE {
             adslAtucIntervalFastR            PerfIntervalCount,
             adslAtucIntervalFailedFastR      PerfIntervalCount,
             adslAtucIntervalSesL             PerfIntervalCount,
             adslAtucIntervalUasL             PerfIntervalCount
             }

         adslAtucIntervalFastR OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current interval, adslAtucIntervalFastR
                  reports the current number of seconds during which
                  there have been fast retrains."
         ::= { adslAtucIntervalExtEntry 1 }

         adslAtucIntervalFailedFastR OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "For the each interval, adslAtucIntervalFailedFastR
                  reports the number of seconds during which
                  there have been failed fast retrains."
         ::= { adslAtucIntervalExtEntry 2 }

         adslAtucIntervalSesL OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the each interval, adslAtucIntervalSesL
                  reports the number of seconds during which
                  there have been severely errored seconds-line."
         ::= { adslAtucIntervalExtEntry 3 }

         adslAtucIntervalUasL OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the each interval, adslAtucIntervalUasL
                  reports the number of seconds during which
                  there have been unavailable seconds-line."
         ::= { adslAtucIntervalExtEntry 4 }

         adslAturPerfDataExtTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturPerfDataExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table contains ADSL physical line counters
                  not defined in the adslAturPerfDataTable
                  from the ADSL-LINE-MIB [RFC2662]."
         ::= { adslExtMibObjects 20 }

         adslAturPerfDataExtEntry   OBJECT-TYPE
             SYNTAX          AdslAturPerfDataExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "An entry extends the adslAturPerfDataEntry defined
                  in [RFC2662].  Each entry corresponds to an ADSL
                  line."
             AUGMENTS { adslAturPerfDataEntry }
         ::= { adslAturPerfDataExtTable 1 }

         AdslAturPerfDataExtEntry ::=
             SEQUENCE {
             adslAturPerfStatSesL             Counter32,
             adslAturPerfStatUasL             Counter32,
             adslAturPerfCurr15MinSesL        PerfCurrentCount,
             adslAturPerfCurr15MinUasL        PerfCurrentCount,
             adslAturPerfCurr1DaySesL         AdslPerfCurrDayCount,
             adslAturPerfCurr1DayUasL         AdslPerfCurrDayCount,
             adslAturPerfPrev1DaySesL         AdslPerfPrevDayCount,
             adslAturPerfPrev1DayUasL         AdslPerfPrevDayCount
         }

         adslAturPerfStatSesL OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object reports the count of
                  severely errored second-line since the last agent
                  reset."
             REFERENCE "ITU G.997.1 Section 7.2.1.1.7 "
         ::= { adslAturPerfDataExtEntry 1 }

         adslAturPerfStatUasL OBJECT-TYPE
             SYNTAX      Counter32
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "The value of this object reports the count of
                  unavailable seconds-line since the last agent
                  reset."
             REFERENCE "ITU G.997.1 Section 7.2.1.2.9 "
         ::= { adslAturPerfDataExtEntry 2 }

         adslAturPerfCurr15MinSesL OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current 15-minute interval,
                  adslAturPerfCurr15MinSesL reports the current
                  number of seconds during which there have been
                  severely errored seconds-line."

             REFERENCE "ITU G.997.1 Section 7.2.1.2.7 "

         ::= { adslAturPerfDataExtEntry 3 }

         adslAturPerfCurr15MinUasL   OBJECT-TYPE
             SYNTAX      PerfCurrentCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current 15-minute interval,
                  adslAturPerfCurr15MinUasL reports the current
                  number of seconds during which there have been
                  available seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.2.9 "
         ::= { adslAturPerfDataExtEntry 4 }

         adslAturPerfCurr1DaySesL    OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current day as measured by
                  adslAturPerfCurr1DayTimeElapsed [RFC2662],
                  adslAturPerfCurr1DaySesL reports the
                  number of seconds during which there have been
                  severely errored seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.2.7 "
         ::= { adslAturPerfDataExtEntry 5 }

         adslAturPerfCurr1DayUasL    OBJECT-TYPE
             SYNTAX      AdslPerfCurrDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the current day as measured by
                  adslAturPerfCurr1DayTimeElapsed [RFC2662],
                  adslAturPerfCurr1DayUasL reports the
                  number of seconds during which there have been
                  unavailable seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.2.9 "
         ::= { adslAturPerfDataExtEntry 6 }

         adslAturPerfPrev1DaySesL     OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current

             DESCRIPTION
                 "For the previous day, adslAturPerfPrev1DaySesL
                  reports the number of seconds during which there
                  were severely errored seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.2.7 "
         ::= { adslAturPerfDataExtEntry 7 }

         adslAturPerfPrev1DayUasL OBJECT-TYPE
             SYNTAX      AdslPerfPrevDayCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the previous day, adslAturPerfPrev1DayUasL
                  reports the number of seconds during which there
                  were severely errored seconds-line."
             REFERENCE "ITU G.997.1 Section 7.2.1.2.9 "
         ::= { adslAturPerfDataExtEntry 8 }

         adslAturIntervalExtTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAturIntervalExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table provides one row for each ATU-R
                  performance data collection interval for
                  ADSL physical interfaces whose
                  IfEntries' ifType is equal to adsl(94)."
         ::= { adslExtMibObjects 21 }

         adslAturIntervalExtEntry   OBJECT-TYPE
             SYNTAX          AdslAturIntervalExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION     "An entry in the
                              adslAturIntervalExtTable."
             AUGMENTS        { adslAturIntervalEntry }
         ::= { adslAturIntervalExtTable 1 }

         AdslAturIntervalExtEntry ::=
             SEQUENCE {
             adslAturIntervalSesL             PerfIntervalCount,
             adslAturIntervalUasL             PerfIntervalCount
             }

         adslAturIntervalSesL OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"

             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the each interval, adslAturIntervalSesL
                  reports the number of seconds during which
                  there have been severely errored seconds-line."
         ::= { adslAturIntervalExtEntry 1 }

         adslAturIntervalUasL OBJECT-TYPE
             SYNTAX      PerfIntervalCount
             UNITS       "seconds"
             MAX-ACCESS  read-only
             STATUS      current
             DESCRIPTION
                 "For the each interval, adslAturIntervalUasL
                  reports the number of seconds during which
                  there have been unavailable seconds-line."
         ::= { adslAturIntervalExtEntry 2 }

         adslConfProfileExtTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslConfProfileExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "The adslConfProfileExtTable extends the ADSL line
                  profile configuration information in the
                  adslLineConfProfileTable from the ADSL-LINE-MIB
                  [RFC2662] by adding the ability to configure the
                  ADSL physical line mode."
         ::= { adslExtMibObjects 22 }

         adslConfProfileExtEntry   OBJECT-TYPE
             SYNTAX          AdslConfProfileExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "An entry extends the adslLineConfProfileEntry
                  defined in [RFC2662].  Each entry corresponds to an
                  ADSL line profile."
             AUGMENTS { adslLineConfProfileEntry }
         ::= { adslConfProfileExtTable 1 }

         AdslConfProfileExtEntry ::=
             SEQUENCE {
                 adslConfProfileLineType  INTEGER
             }

         adslConfProfileLineType OBJECT-TYPE

             SYNTAX      INTEGER {
                 noChannel (1),        -- no channels exist
                 fastOnly (2),         -- only fast channel exists
                 interleavedOnly (3),  -- only interleaved channel
                                       -- exist
                 fastOrInterleaved (4),-- either fast or interleaved
                                       -- channels can exist, but
                                       -- only one at any time
                 fastAndInterleaved (5)-- both the fast channel and
                                       -- the interleaved channel
                                       -- exist
                 }
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "This object is used to configure the ADSL physical
                  line mode.  It has following valid values:

                  noChannel(1), when no channels exist.
                  fastOnly(2), when only fast channel exists.
                  interleavedOnly(3), when only interleaved channel
                      exist.
                  fastOrInterleaved(4), when either fast or
                      interleaved channels can exist, but only one
                      at any time.
                  fastAndInterleaved(5), when both the fast channel
                      and the interleaved channel exist.

                  In the case when no value has been set, the default
                  Value is noChannel(1).
                  "
             DEFVAL { fastOnly }
         ::= { adslConfProfileExtEntry 1 }

         adslAlarmConfProfileExtTable   OBJECT-TYPE
             SYNTAX          SEQUENCE OF AdslAlarmConfProfileExtEntry
             MAX-ACCESS      not-accessible
             STATUS          current
             DESCRIPTION
                 "This table extends the
                  adslLineAlarmConfProfileTable and provides
                  threshold parameters for all the counters defined
                  in this MIB module."
         ::= { adslExtMibObjects 23 }

         adslAlarmConfProfileExtEntry   OBJECT-TYPE
             SYNTAX          AdslAlarmConfProfileExtEntry
             MAX-ACCESS      not-accessible

             STATUS          current
             DESCRIPTION
                 "An entry extends the adslLineAlarmConfProfileTable
                  defined in [RFC2662].  Each entry corresponds to
                  an ADSL alarm profile."
             AUGMENTS { adslLineAlarmConfProfileEntry }
         ::= { adslAlarmConfProfileExtTable 1 }

         AdslAlarmConfProfileExtEntry ::=
             SEQUENCE {
             adslAtucThreshold15MinFailedFastR     Integer32,
             adslAtucThreshold15MinSesL            Integer32,
             adslAtucThreshold15MinUasL            Integer32,
             adslAturThreshold15MinSesL            Integer32,
             adslAturThreshold15MinUasL            Integer32
         }

         adslAtucThreshold15MinFailedFastR   OBJECT-TYPE
             SYNTAX      Integer32(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The first time the value of the corresponding
                  instance of adslAtucPerfCurr15MinFailedFastR
                  reaches or exceeds this value within a given
                  15-minute performance data collection period,
                  an adslAtucFailedFastRThreshTrap  notification
                  will be generated. The value '0' will disable
                  the notification. The default value of this
                  object is '0'."
             DEFVAL { 0 }
         ::= { adslAlarmConfProfileExtEntry 1 }

         adslAtucThreshold15MinSesL OBJECT-TYPE
             SYNTAX      Integer32(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The first time the value of the corresponding
                  instance of adslAtucPerf15MinSesL reaches or
                  exceeds this value within a given 15-minute
                  performance data collection period, an
                  adslAtucSesLThreshTrap notification will be
                  generated. The value '0' will disable the
                  notification.  The default value of this
                  object is '0'."

             DEFVAL { 0 }

         ::= { adslAlarmConfProfileExtEntry 2 }

         adslAtucThreshold15MinUasL OBJECT-TYPE
             SYNTAX      Integer32(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The first time the value of the corresponding
                  instance of adslAtucPerf15MinUasL reaches or
                  exceeds this value within a given 15-minute
                  performance data collection period, an
                  adslAtucUasLThreshTrap notification will be
                  generated. The value '0' will disable the
                  notification.  The default value of this
                  object is '0'."
             DEFVAL { 0 }
         ::= { adslAlarmConfProfileExtEntry 3 }

         adslAturThreshold15MinSesL OBJECT-TYPE
             SYNTAX      Integer32(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The first time the value of the corresponding
                  instance of adslAturPerf15MinSesL reaches or
                  exceeds this value within a given 15-minute
                  performance data collection period, an
                  adslAturSesLThreshTrap notification will be
                  generated. The value '0' will disable the
                  notification.  The default value of this
                  object is '0'."
             DEFVAL { 0 }
         ::= { adslAlarmConfProfileExtEntry 4 }

         adslAturThreshold15MinUasL OBJECT-TYPE
             SYNTAX      Integer32(0..900)
             UNITS       "seconds"
             MAX-ACCESS  read-create
             STATUS      current
             DESCRIPTION
                 "The first time the value of the corresponding
                  instance of adslAturPerf15MinUasL reaches or
                  exceeds this value within a given 15-minute
                  performance data collection period, an

                  adslAturUasLThreshTrap notification will be
                  generated. The value '0' will disable the
                  notification.  The default value of this
                  object is '0'."
             DEFVAL { 0 }

         ::= { adslAlarmConfProfileExtEntry 5 }

  --   definitions

   adslExtTraps OBJECT IDENTIFIER ::= { adslExtMibObjects 24 }

   adslExtAtucTraps OBJECT IDENTIFIER ::= { adslExtTraps 1 }

   adslExtAtucTrapsPrefix OBJECT IDENTIFIER ::= { adslExtAtucTraps 0 }

         adslAtucFailedFastRThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinFailedFastR }
             STATUS  current
             DESCRIPTION
                 "Failed Fast Retrains 15-minute threshold reached."
         ::= { adslExtAtucTrapsPrefix 1 }

         adslAtucSesLThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinSesL }
             STATUS  current
             DESCRIPTION
                 "Severely errored seconds-line 15-minute threshold
                  reached."
         ::= { adslExtAtucTrapsPrefix 2 }

         adslAtucUasLThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAtucPerfCurr15MinUasL }
             STATUS  current
             DESCRIPTION
                 "Unavailable seconds-line 15-minute threshold
                  reached."
         ::= { adslExtAtucTrapsPrefix 3 }

   adslExtAturTraps OBJECT IDENTIFIER ::= { adslExtTraps 2 }

   adslExtAturTrapsPrefix OBJECT IDENTIFIER ::= { adslExtAturTraps 0 }

         adslAturSesLThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAturPerfCurr15MinSesL }
             STATUS  current
             DESCRIPTION

                 "Severely errored seconds-line 15-minute threshold
                  reached."
         ::= { adslExtAturTrapsPrefix 1 }

         adslAturUasLThreshTrap      NOTIFICATION-TYPE
             OBJECTS { adslAturPerfCurr15MinUasL }
             STATUS  current
             DESCRIPTION
                 "Unavailable seconds-line 15-minute threshold
                  reached."
         ::= { adslExtAturTrapsPrefix 2 }

   -- conformance information

   adslExtConformance OBJECT IDENTIFIER ::= { adslExtMIB 2 }

   adslExtGroups OBJECT IDENTIFIER ::= { adslExtConformance 1 }
   adslExtCompliances OBJECT IDENTIFIER ::= { adslExtConformance 2 }

         -- ATU-C agent compliance statements

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

             MODULE  -- this module
             MANDATORY-GROUPS
                {
                adslExtLineGroup,
                adslExtLineConfProfileControlGroup,
                adslExtLineAlarmConfProfileGroup
                }

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

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

             GROUP   adslExtNotificationsGroup
             DESCRIPTION
           "This group is optional.  Implementations which
                  support TCA (Threshold Crossing Alert) should
                  implement this group."

             OBJECT      adslAtucThreshold15MinFailedFastR
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable only when
                  static profiles as defined in ADSL Line MIB
                  [RFC2662] are implemented."

             OBJECT      adslAtucThreshold15MinSesL
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable only when
                  static profiles as defined in ADSL Line MIB
                  [RFC2662] are implemented."

             OBJECT      adslAtucThreshold15MinUasL
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable only when
                  static profiles as defined in ADSL Line MIB
                  [RFC2662] are implemented."

             OBJECT      adslAturThreshold15MinSesL
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable only when
                  static profiles as defined in ADSL Line MIB
                  [RFC2662] are implemented."

             OBJECT      adslAturThreshold15MinUasL
             MIN-ACCESS  read-write
             DESCRIPTION
                 "Read-write access is applicable only when
                  static profiles as defined in ADSL Line MIB
                  [RFC2662] are implemented."

             OBJECT      adslLineConfProfileDualLite
             MIN-ACCESS  read-only
             DESCRIPTION
                 "Read-only access is applicable only when
                  static profiles as defined in ADSL Line MIB
                  [RFC2662] are implemented."

         ::= { adslExtCompliances 1 }

         -- units of conformance
         adslExtLineGroup    OBJECT-GROUP
             OBJECTS {
                 adslLineConfProfileDualLite,
                 adslLineTransAtucCap,
                 adslLineTransAtucConfig,
                 adslLineTransAtucActual,
                 adslLineGlitePowerState
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing extended
                 configuration information about an ADSL Line."
         ::= { adslExtGroups 1 }

         adslExtAtucPhysPerfCounterGroup OBJECT-GROUP
             OBJECTS {
                 adslAtucPerfStatFastR,
                 adslAtucPerfStatFailedFastR,
                 adslAtucPerfCurr15MinFastR,
                 adslAtucPerfCurr15MinFailedFastR,
                 adslAtucPerfCurr1DayFastR,
                 adslAtucPerfCurr1DayFailedFastR,
                 adslAtucPerfPrev1DayFastR,
                 adslAtucPerfPrev1DayFailedFastR,
                 adslAtucPerfStatSesL,
                 adslAtucPerfStatUasL,
                 adslAtucPerfCurr15MinSesL,
                 adslAtucPerfCurr15MinUasL,
                 adslAtucPerfCurr1DaySesL,
                 adslAtucPerfCurr1DayUasL,
                 adslAtucPerfPrev1DaySesL,
                 adslAtucPerfPrev1DayUasL,
                 adslAtucIntervalFastR,
                 adslAtucIntervalFailedFastR,
                 adslAtucIntervalSesL,
                 adslAtucIntervalUasL
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing raw performance
                 counts on an ADSL Line (ATU-C end)."
         ::= { adslExtGroups 2 }

         adslExtAturPhysPerfCounterGroup OBJECT-GROUP
             OBJECTS {

                 adslAturPerfStatSesL,
                 adslAturPerfStatUasL,
                 adslAturPerfCurr15MinSesL,
                 adslAturPerfCurr15MinUasL,
                 adslAturPerfCurr1DaySesL,
                 adslAturPerfCurr1DayUasL,
                 adslAturPerfPrev1DaySesL,
                 adslAturPerfPrev1DayUasL,
                 adslAturIntervalSesL, adslAturIntervalUasL
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing raw performance
                 counts on an ADSL Line (ATU-C end)."
         ::= { adslExtGroups 3 }

         adslExtLineConfProfileControlGroup OBJECT-GROUP
             OBJECTS {
                 adslConfProfileLineType
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing profile
                 control for the ADSL system."
         ::= { adslExtGroups 4 }

         adslExtLineAlarmConfProfileGroup OBJECT-GROUP
             OBJECTS {
                    adslAtucThreshold15MinFailedFastR,
                    adslAtucThreshold15MinSesL,
                    adslAtucThreshold15MinUasL,
                    adslAturThreshold15MinSesL,
                    adslAturThreshold15MinUasL
                }
             STATUS     current
             DESCRIPTION
                 "A collection of objects providing alarm profile
                 control for the ADSL system."
         ::= { adslExtGroups 5 }

         adslExtNotificationsGroup NOTIFICATION-GROUP
             NOTIFICATIONS {
                 adslAtucFailedFastRThreshTrap,
                 adslAtucSesLThreshTrap,
                 adslAtucUasLThreshTrap,
                 adslAturSesLThreshTrap,
                 adslAturUasLThreshTrap
             }

             STATUS        current
             DESCRIPTION
                 "The collection of ADSL extension notifications."
            ::= { adslExtGroups 6 }

END

7.  Acknowledgments

   This document is a product of the ADSL MIB Working Group.

8.  References

8.1 Normative References

   [ANSI T1.413]      American National Standards Institute, ANSI
                      T1.413, Issue 2, "Standards Project for Interfaces
                      Relating to Carrier to Customer Connection of ADSL
                      Equipment", 1998.

   [ETSI DTS/TM06006] European Telecommunications Standards Institute
                      "ADSL European Specific Requirements", November
                      2000.

   [ITU G.992.1]      ITU-T Telecommunication Standardization Sector,
                      "Asymmetric digital subscriber line (ADSL)
                      transceivers", June 1999.

   [ITU G.992.2]      ITU-T Telecommunication Standardization Sector,
                      "Splitterless asymmetric digital subscriber line
                      (ADSL) transceivers", June 1999.

   [ITU G.997.1]      ITU-T Telecommunication Standardization Sector,
                      "Physical Layer Management of Digital Subscriber
                      Transceivers", June 1999.

   [RFC2026]          Bradner S., "The Internet Standards Process -
                      Revision 3", BCP 9, RFC 2026, October 1996.

   [RFC2028]          Hovey R. and  S. Bradner, "The Organizations
                      Involved in the IETF Standards Process", BCP 11,
                      RFC 2028, October 1996.

   [RFC2493]          Tesink, K., "Textual Conventions for MIB Modules
                      Using Performance History Based on 15 Minute
                      Intervals" RFC 2493, January 1999.

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

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

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

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

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

   [RFC3414]          Blumenthal, U. and B. Wijnen, "User-based Security
                      Model (USM) for version 3 of the Simple Network
                      Management Protocol (SNMPv3)", STD 62, RFC 3414,
                      December 2002.

   [RFC3415]          Wijnen, B., Presuhn, R. and K. McCloghrie, "View-
                      based Access Control Model (VACM) for the Simple
                      Network Management Protocol (SNMP)", STD 62, RFC
                      3415, December 2002.

8.2 Informative References

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

9.  Security Considerations

   The following security matters should be considered when implementing
   this MIB.

   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 (section 6.4) such that both
      subscriber service and network operations can be interfered with.

      Subscriber service can be altered by modifying any of a number of
      service characteristics such as rate partitioning and maximum
      transmission rates.  Network operations can be impacted by
      modifying notification thresholds such as Signal-to-Noise Ratio
      (SNR) margins.

   2) SNMPv1 by itself is such an insecure environment.  Even if the
      network itself is secure (for example by using IPSec), there is no
      control over 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 STD 62, RFC 3414 [RFC3414] and the View-based
      Access Control Model STD 62, RFC 3415 [RFC3415] 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 only those objects, and to those
      principals (users) that have legitimate rights to access them.

   3) The profile mechanism presented in this document requires specific
      attention.  The implementor of this MIB has a choice of
      implementing either 'static' or 'dynamic' profiles.  This decision
      must be consistent with the implementation of RFC 2662.

      In the case of 'static' profiles, the elements of the profile are
      read-write, as opposed to read-create when 'dynamic' profiles are
      implemented:

         - adslConfProfileLineType,
         - adslAtucThreshold15MinFailedFastR,
         - adslAtucThreshold15MinSesL,
         - adslAtucThreshold15MinUasL,
         - adslAturThreshold15MinSesL, and
         - adslAturThreshold15MinUasL.

      This decision also impacts the mechanics of the index,
      adslLineConfProfileDualLite.  When 'static' profiles are
      implemented, its value is algorithmically set by the system and
      its value is based on the ifIndex.  Hence it is not guaranteed
      across system reboots.  Similar to the handling of
      adslLineConfProfile [RFC2662], the implementor of this MIB must
      ensure that the profile object values associated with these
      indices are maintained across system reboots.

      In the case of dynamic profiles, this object is set by the SNMP
      manager.  The implementor of this MIB may want to provide a view
      of the profile on a customer-by-customer standpoint, but should be
      cautious of the dynamic nature of these objects.

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

10. Intellectual Property Notice

   The IETF takes no position regarding the validity or scope of any
   intellectual property or other rights that might be claimed to
   pertain to the implementation or use of the technology described in
   this document or the extent to which any license under such rights
   might or might not be available; neither does it represent that it
   has made any effort to identify any such rights.  Information on the
   IETF's procedures with respect to rights in standards-track and
   standards-related documentation can be found in BCP-11 [RFC2028].
   Copies of claims of rights made available for publication and any
   assurances of licenses to be made available, or the result of an
   attempt made to obtain a general license or permission for the use of
   such proprietary rights by implementors or users of this
   specification can be obtained from the IETF Secretariat.

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

11.  Authors' Addresses

   Faye Ly
   Pedestal Networks
   6503 Dumbarton Circle,
   Fremont, CA 94555

   Phone: +1 510-578-0158
   Fax:   +1 510-744-5152
   EMail: faye@pedestalnetworks.com

   Gregory Bathrick
   Nokia Networks
   2235 Mercury Way,
   Santa Rosa, CA 95405

   Phone: +1 707-362-1125
   Fax:   +1 707-535-7300
   EMail: greg.bathrick@nokia.com

12.  Full Copyright Statement

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

   This document and translations of it may be copied and furnished to
   others, and derivative works that comment on or otherwise explain it
   or assist in its implementation may be prepared, copied, published
   and distributed, in whole or in part, without restriction of any
   kind, provided that the above copyright notice and this paragraph are
   included on all such copies and derivative works.  However, this
   document itself may not be modified in any way, such as by removing
   the copyright notice or references to the Internet Society or other
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   The limited permissions granted above are perpetual and will not be
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   "AS IS" basis and THE INTERNET SOCIETY AND THE INTERNET ENGINEERING
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Acknowledgement

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

 

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