Network Working Group F. Ly

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

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RFC 3440 ADSL Line Extension MIB December 2002

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].

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RFC 3440 ADSL Line Extension MIB December 2002

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.

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RFC 3440 ADSL Line Extension MIB December 2002

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.

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RFC 3440 ADSL Line Extension MIB December 2002

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.

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RFC 3440 ADSL Line Extension MIB December 2002

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,

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RFC 3440 ADSL Line Extension MIB December 2002

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: [email protected]

Gregory Bathrick
Nokia Networks
2235 Mercury Way,
Fax: +1 707-535-7300
E-Mail: [email protected]

General Discussion:[email protected]
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]."

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

"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

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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."

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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."

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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 }

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RFC 3440 ADSL Line Extension MIB December 2002

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 "

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RFC 3440 ADSL Line Extension MIB December 2002

::= { 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

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RFC 3440 ADSL Line Extension MIB December 2002

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"

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 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'."

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

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

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RFC 3440 ADSL Line Extension MIB December 2002

"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."

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RFC 3440 ADSL Line Extension MIB December 2002

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."

Ly & Bathrick Standards Track [Page 28]

RFC 3440 ADSL Line Extension MIB December 2002

::= { 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 {

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RFC 3440 ADSL Line Extension MIB December 2002

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
}

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RFC 3440 ADSL Line Extension MIB December 2002

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.

Ly & Bathrick Standards Track [Page 31]

RFC 3440 ADSL Line Extension MIB December 2002

[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.

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RFC 3440 ADSL Line Extension MIB December 2002

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.

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RFC 3440 ADSL Line Extension MIB December 2002

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.

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RFC 3440 ADSL Line Extension MIB December 2002

11. Authors' Addresses

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

Phone: +1 510-578-0158
Fax: +1 510-744-5152
EMail: [email protected]

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

Phone: +1 707-362-1125
Fax: +1 707-535-7300
EMail: [email protected]

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RFC 3440 ADSL Line Extension MIB December 2002

12. Full Copyright Statement

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

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

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

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

Acknowledgement

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

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