[Docs] [txt|pdf] [Tracker] [WG] [Email] [Diff1] [Diff2] [Nits]

Versions: 04 05 06 07 08 09 10 11 RFC 3440

INTERNET-DRAFT              ADSL Line Extension MIB              Faye Ly
                                                       Pedestal Networks
                                                        Gregory Bathrick
                                                                   Nokia
                                                      September 12, 2002






                Definitions of Extension Managed Objects
                for Asymmetric Digital Subscriber Lines

                            September 12, 2002

                   draft-ietf-adslmib-adslext-11.txt




   Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026.

   Internet-Drafts are working documents of the Internet Engineering
   Task Force (IETF), its areas, and its working groups. Note that other
   groups may also distribute working documents as Internet-Drafts.

   Internet-Drafts are draft documents valid for a maximum of six months
   and may be updated, replaced, or obsoleted by other documents at any
   time.  It is inappropriate to use Internet-Drafts as reference
   material or to cite them other than as ``work in progress.'

     The list of current Internet-Drafts can be accessed at
     http://www.ietf.org/1id-abstracts.html

     The list of Internet-Draft Shadow Directories can be accessed at
     http://www.ietf.org/shadow.html



   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 [RFC2662].

   1.  The SNMP Network Management Framework



Expires August 2002                                             [Page 1]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


   The SNMP Management Framework presently consists of five major
   components:

   o  An overall architecture, described in RFC 2571 [RFC2571].

   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 [RFC1155], STD 16,
      RFC 1212 [RFC1212] and RFC 1215 [RFC1215].  The second version,
      called SMIv2, is described in STD 58, RFC 2578 [RFC2578],
      STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580 [RFC2580].

   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[RFC1157].  A second
      version of the SNMP message protocol, which is not an Internet
      standards track protocol, is called SNMPv2c and described in RFC
      1901 [RFC1901] and RFC 1906 [RFC1906].  The third version of the
      message protocol is called SNMPv3 and described in RFC 1906
      [RFC1906], RFC2572 [RFC2572] and RFC 2574 [RFC2574].

   o  Protocol operations for accessing management information.  The
      first set of protocol operations and associated PDU formats is
      described in STD 15, RFC 1157 [RFC1157].  A second set of protocol
      operations and associated PDU formats is described in RFC 1905
      [RFC1905].

   o  A set of fundamental applications described in RFC 2573
      [RFC2573] and the view-based access control mechanism described in
      RFC 2575 [RFC2575].

   A more detailed introduction to the current SNMP Management Framework
   can be found in RFC 2570 [RFC2570].

   Managed objects are accessed via a virtual information store, termed
   the Management Information Base or MIB.  Objects in the MIB are
   defined using the mechanisms defined in the SMI.

   This memo 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 (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.



Expires August 2002                                             [Page 2]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


   2.  Introduction

   The purpose of this memo is to define a supplemental set of managed
   objects that is not covered by 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 ADSL Line Extension MIB
   with other MIBs described in RFCs and in their various degrees
   of standardization.  In regards to these relationship, the ADSL Line
   Extension MIB follows conventions as used by the ADSL Line MIB with
   one exception.  The value of the RFC2863 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



Expires August 2002                                             [Page 3]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


   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



Expires August 2002                                             [Page 4]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


   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 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}.



Expires August 2002                                             [Page 5]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


   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.

   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 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'.


   5.  Conformance and Compliance

   See the conformance and compliance statements within the information
   module.


   6.  Definitions

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




Expires August 2002                                             [Page 6]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


      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 "200204231200Z"

      ORGANIZATION "IETF ADSL MIB Working Group"

      CONTACT-INFO
            "
             Faye Ly
             Pedestal Networks
             3045 Park Boulevard
             Palo Alto, CA 94306
             Tel: +1 650-475-1274
             Fax: +1 650-688-3119
             E-Mail: faye@pedestalnetworks.com

             Gregory Bathrick
             NOKIA High Speed Access Nodes
             1310 Redwood Way,
             Petaluma, CA 94954
             Tel: +1 707-793-7030
             Fax: +1 707-792-0850
             E-Mail: greg.bathrick@nokia.com




Expires August 2002                                             [Page 7]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


             IETF ADSL MIB Working Group
             <XDSLMIB@LISTSERV.ECIRALEIGH.COM>
             "
      DESCRIPTION
             "This MIB Module is a supplement to the ADSL-LINE-MIB
             [RFC2662]."
      REVISION     "200204231200Z"
      DESCRIPTION  "Initial Version, published as RFC xxxx. 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)
              }



Expires August 2002                                             [Page 8]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


            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



Expires August 2002                                             [Page 9]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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



Expires August 2002                                            [Page 10]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                     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



Expires August 2002                                            [Page 11]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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



Expires August 2002                                            [Page 12]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                     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,



Expires August 2002                                            [Page 13]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                     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"



Expires August 2002                                            [Page 14]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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



Expires August 2002                                            [Page 15]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                     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



Expires August 2002                                            [Page 16]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                     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



Expires August 2002                                            [Page 17]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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 }



Expires August 2002                                            [Page 18]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


            ::= { 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."



Expires August 2002                                            [Page 19]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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



Expires August 2002                                            [Page 20]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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



Expires August 2002                                            [Page 21]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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
                }




Expires August 2002                                            [Page 22]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


            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



Expires August 2002                                            [Page 23]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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 }



Expires August 2002                                            [Page 24]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


            ::= { 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 }



Expires August 2002                                            [Page 25]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


            ::= { 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



Expires August 2002                                            [Page 26]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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



Expires August 2002                                            [Page 27]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                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,



Expires August 2002                                            [Page 28]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                    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,



Expires August 2002                                            [Page 29]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                    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



Expires August 2002                                            [Page 30]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


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

   8.  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.

      [RFC1155]   Rose, M., and K. McCloghrie, "Structure and
                  Identification of Management Information for
                  TCP/IP-based Internets", STD 16, RFC 1155, May 1990.

      [RFC1157]   Case, J., Fedor, M., Schoffstall, M., and J. Davin,
                  "Simple Network Management Protocol", STD 15, RFC 1157,
                  May 1990.

      [RFC1212]   Rose, M. and K. McCloghrie, "Concise MIB Definitions",
                  STD 16, RFC 1212, March 1991.

      [RFC1215]   M. Rose, "A Convention for Defining Traps for use with
                  the SNMP", RFC 1215, March 1991.

      [RFC1901]   Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,
                  "Introduction to Community-based SNMPv2", RFC 1901,
                  January 1996.

      [RFC1905]   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.

      [RFC1906]   Case, J., McCloghrie, K., Rose, M., and S. Waldbusser,



Expires August 2002                                            [Page 31]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


                  "Transport Mappings for Version 2 of the Simple Network
                  Management Protocol (SNMPv2)", RFC 1906, January 1996.

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

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

      [RFC2570]   Case, J., Mundy, R., Partain, D., and B. Stewart,
                  "Introduction to Version 3 of the Internet-standard
                  Network Management Framework", RFC 2570, April 1999.

      [RFC2571]   Harrington, D., Presuhn, R., and B. Wijnen, "An
                  Architecture for Describing SNMP Management Frameworks",
                  RFC 2571, April 1999.

      [RFC2572]   Case, J., Harrington D., Presuhn R., and B. Wijnen,
                  "Message Processing and Dispatching for the Simple
                  Network Management Protocol (SNMP)", RFC 2572, April 1999.

      [RFC2573]   Levi, D., Meyer, P., and B. Stewart, "SNMPv3
                  Applications", RFC 2573, April 1999.

      [RFC2574]   Blumenthal, U., and B. Wijnen, "User-based Security Model
                  (USM) for version 3 of the Simple Network Management
                  Protocol (SNMPv3)", RFC 2574, April 1999.

      [RFC2575]   Wijnen, B., Presuhn, R., and K. McCloghrie, "View-based
                  Access Control Model (VACM) for the Simple Network
                  Management Protocol (SNMP)", RFC 2575, April 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", May 1999.




Expires August 2002                                            [Page 32]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


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


   11.  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 modification of notification thresholds
     such as Signal-to-Noise Ratio (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) 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 RFC2662.




Expires August 2002                                            [Page 33]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


     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 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 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.

   12. 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.



Expires August 2002                                            [Page 34]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


     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.

   13.  Authors' Addresses

     Faye Ly
     Pedestal Networks
     3045 Park Boulevard
     Palo Alto, CA 94306, USA

     Phone: +1 650-475-1274
     Fax:   +1 650-688-3119
     EMail: faye@pedestalnetworks.com

     Gregory Bathrick
     NOKIA High Speed Access Nodes
     1310 Redwood Way,
     Petaluma, CA 94954, USA

     Phone: +1 707-793-7030
     Fax:   +1 707-792-0850
     EMail: greg.bathrick@nokia.com

   14.  Full Copyright Statement

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

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

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

     This document and the information contained herein is provided on an



Expires August 2002                                            [Page 35]

INTERNET-DRAFT           ADSL Line Extension MIB          April 23, 2002


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

     Acknowledgement

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

   Table of Contents

      1.  Status of this Memo   .....................................   1
      2.  Abstract    ...............................................   1
      3.  The SNMP Network Management Framework   ...................   1
      4.  Introduction   ............................................   2
      5.  Relationship of ADSL LINE EXTENSION MIB with standard MIBs.   3
      6.  Conventions used in the MIB   .............................   3
      7.  Conformance and Compliance   ..............................   5
      8.  Definitions   .............................................   5
      9.  Acknowledgments   .........................................  25
      10. References   ..............................................  26
      11. Security Considerations   .................................  27
      12. Intellectual Property Notice ..............................  27
      13. Authors' Addresses   ......................................  28
      14. Full Copyright Statement    ...............................  29
























Expires August 2002                                            [Page 36]


Html markup produced by rfcmarkup 1.111, available from https://tools.ietf.org/tools/rfcmarkup/