INTERNET-DRAFT ADSL Line Extension MIB Faye Ly Copper Mountain Networks Gregory Bathrick Nokia June 5, 2000 Definitions of Extension Managed Objects for ADSL Lines June 5, 2000 draft-ietf-adslmib-adslext-05.txt 1. 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/ietf/1id-abstracts.txt The list of Internet-Draft Shadow Directories can be accessed at http://www.ietf.org/shadow.html. To view the entire list of current Internet-Drafts, please check the "1id-abstracts.txt" listing contained in the Internet-Drafts Shadow Directories on ftp.is.co.za (Africa), ftp.nordu.net (Northern Europe), ftp.nis.garr.it (Southern Europe), munnari.oz.au (Pacific Rim), ftp.ietf.org (US East Coast), or ftp.isi.edu (US West Coast). 2. Abstract This document defines a standard SNMP MIB for additional functions not covered by the ADSL Line MIB [1]. 3. The SNMP Network Management Framework Expires September 2000 [Page 1] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 The SNMP Management Framework presently consists of five major components: o An overall architecture, described in RFC 2571 [11]. o Mechanisms for describing and naming objects and events for the purpose of management. The first version of this Structure of Management Information (SMI) is called SMIv1 and described in STD 16, RFC 1155 [14], STD 16, RFC 1212 [15] and RFC 1215 [16]. The second version, called SMIv2, is described in STD 58, RFC 2578 [1], STD 58, RFC 2579 [2] and STD 58, RFC 2580 [17]. o Message protocols for transferring management information. The first version of the SNMP message protocol is called SNMPv1 and described in RFC 1157 [7]. A second version of the SNMP message protocol, which is not an Internet standards track protocol, is called SNMPv2c and described in RFC 1901 [18] and RFC 1906 [19]. The third version of the message protocol is called SNMPv3 and described in RFC 1906 [19], RFC 2272 [20] and RFC 2274 [21]. o Protocol operations for accessing management information. The first set of protocol operations and associated PDU formats is described in RFC 1157 [7]. A second set of protocol operations and associated PDU formats is described in RFC 1905 [8]. o A set of fundamental applications described in RFC 2273 [22] and the view-based access control mechanism described in RFC 2275 [23]. 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 document specifies a MIB module that is compliant to the SMIv2. A MIB conforming to the SMIv1 can be produced through the appropriate translations. The resulting translated MIB must be semantically equivalent, except where objects or events are omitted because no translation is possible (e.g., use of Counter64). Some machine readable information in SMIv2 will be converted into textual descriptions in SMIv1 during the translation process. However, this loss of machine readable information is not considered to change the semantics of the MIB. 4. Change Log Expires September 2000 [Page 2] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 This section tracks changes made to the revisions of the Internet Drafts of this document. It will be deleted when the document is published as an RFC. The following changes were made for the version of the document dated May 10, 2000. - Fixed the syntax AUGMENT for all tables. - Corrected typos and added section 10, 11 and 12. The following changes were made for the version of the document dated May 10, 2000. - Renamed adslLineTransAtucCapActual to adslLineTransAtucActual The following changes were made for the version of the document dated March 10, 2000. - Added a new object in the adslLineExtTable describing the G.lite power state. The following changes were made for the version of the document dated October 20, 1999. - Changed adslLineExtTable to include config ATU-C, ATU-C and ATU-R actual transmission capabilities. - renamed adslProfileLineMode to adslProfileLineType to match rfc2662 adslLineType object. - Added two objects in the adslLineExtTable: one for adslLineModeConfig and adslLineModeActual. - Added a new textual convention for ADSL line mode. - Corrected the MIB compiled errors and typos. 5. 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 [10]. This memo addresses the additional objects defined in ITU G.997.1 [8]. These additional objects specifically address the management capabilities of ADSL "Lite" as defined by ITU-T G.992.2 [9]. 6. Relationship of the 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". ADSL Line Extension MIB obeys the same relationship between ADSL Line MIB to other standard MIBs with one exception for the ifOperStatus as defined in RFC 1213 [3]. 6.1 ifOperStatus Expires September 2000 [Page 3] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 ifOperStatus is set to down(2) when the ADSL line interface is in power state L2, which means no power. ifOperStatus is set to up(1) if the ADSL line interface is in power state L0 (power on) or L1 (reduced power). 7. Conventions used in the MIB 7.1 Structure The MIB is organized to follow the same structure of the ADSL Line MIB [1]. 7.2 Additional Managed Objects A few objects are added to cover the ADSL "Lite" management and they are: - 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 ADSL "Lite", another object has been added to the ADSL Line MIB [10] in order to manage the ADSL line profile. The object is the line mode configuration. The MIB definitions are attached. The MIB will be branched from the ADSL Line MIB [10]. 7.2.1 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. Expires September 2000 [Page 4] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 The transmssion mode and the corresponding line mode are defined as: Transmission mode Line Mode ---------------------------------------------------------- Regional Std. (ANSI T1.413) Full Regional Std. (ETSI DTS/TM06006) Full G.992.1 POTS non-overlapped Full G.992.1 POTS overlapped Full G.992.1 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 Lite G.992.2 POTS overlapped Lite G.992.2 with TCM-ISDN non-overlapped Lite G.992.2 with TCM-ISDN overlapped Lite Table 1: Transmission Mode and Line Mode In case more than one bit is configured for an ADSL interface and both Full and Lite modes are selected, the interface is said to configure 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. 7.2.2 Power Management There are three power states for each managed ADSL interface operating in the G.lite mode. L0 is power on, L1 is power on but reduced and L2 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 L2 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. 7.2.3 Fast Retrain Parameters Section 7.4.15 of 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. Expires September 2000 [Page 5] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 7.2.4 Counters for Severe Error Second-line and Unavailable Second Section 7.2.1.1.7 and section 7.2.1.1.9 specify two counters that are not covered by the ADSL Line MIB [10]. These two counters (severe error seconds-line and unavailable seconds) 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 retrins. Fast retrains and failed fast retrains are considered to be part of the normal network operation and thus are not counted as unavailable errors. 7.2.5 Alternative profile configuration for the Dual line mode interface This object is used only when the interface (for the ADSL line or channel) is configured as dual mode, that is, the object adslLineTransAtucConfig is configued with one or more full-rate modes and one or more Lite modes. The object adslLineConfProfile defined in ADSL-MIB [10] is used as the primary full-rate profile. The newly added object in this MIB module, adslLineConfProfileDualLite is used to describe or configure the Lite profile. Note that if one or more full-rate modes are configured, or only 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 lite profiles are needed. If the static profile is used, the profile name is the ifIndex ASCII string plus the differentiator string appended to the end of the static profile name. For example, for interface 100, the object adslLineConfProfile is set by the agent to be "100Full" and the object adslLineConfProfileDualLite is set to be "100Lite". 8. Conformance and Compliance See the conformance and compliance statements within the information module. 9. Definitions ADSL-LINE-EXT-MIB DEFINITIONS ::= BEGIN IMPORTS Expires September 2000 [Page 6] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 Counter32, Unsigned32, NOTIFICATION-TYPE, MODULE-IDENTITY, Gauge32, OBJECT-TYPE, mib-2 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, AdslPerfTimeElapsed, AdslLineCodingType FROM ADSL-TC-MIB ifIndex FROM IF-MIB SnmpAdminString FROM SNMP-FRAMEWORK-MIB adslLineConfProfileName, adslAtucIntervalNumber, adslAturIntervalNumber, adslLineAlarmConfProfileName, adslMIB FROM ADSL-LINE-MIB ; adslExtMIB MODULE-IDENTITY LAST-UPDATED "9905141200Z" ORGANIZATION "IETF ADSL MIB Working Group" CONTACT-INFO " Faye Ly Copper Mountain Networks Norcal Office 2470 Embarcadero Way Palo Alto, CA 94303 Tel: +1 650-687-3323 Fax: +1 650-687-3372 E-Mail: faye@coppermountain.com Gregory Bathrick NOKIA High Speed Access Nodes 1310 Redwood Way, Petaluma, CA 94954, USA Tel: +1 707-793-7030 Fax: +1 707-792-0850 E-Mail: greg.bathrick@nokia.com" Expires September 2000 [Page 7] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 DESCRIPTION "This MIB Module is a supplement to the ADSL-LINE-MIB [1]." ::= { 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 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) " 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) } adslLineExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslLineExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains ADSL line configuration and monitoring information not defined in the adslLineTable from Expires September 2000 [Page 8] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 the ADSL-LINE-MIB [1]. This includes the 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 [1]. Each entry corresponds to an ADSL line." INDEX { ifIndex } ::= { 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 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 [8]" ::= { adslLineExtEntry 1 } adslLineTransAtucConfig OBJECT-TYPE SYNTAX AdslTransmissionModeType MAX-ACCESS read-write STATUS current DESCRIPTION "The transmission modes that the ATU-C must enable for the line. The ATU-C's enable modes must be a subset of its capable modes." REFERENCE "Section 7.3.2 ITU G.997.1 [8]" ::= { adslLineExtEntry 2 } Expires September 2000 [Page 9] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 adslLineTransAtucActual OBJECT-TYPE SYNTAX AdslTransmissionModeType MAX-ACCESS read-only STATUS current DESCRIPTION "The transmission mode of the ATU-C. This object returns 0 (i.e BITS with no mode bit set) if there is no mode currently known. The initialization with the ATU-R will determine the mode used and the result must be a one-mode subset of the 'Enable' modes. After an initialization has occurred, its mode is saved as the 'Current' mode and it should persist even if the link goes down subsequently. This leaves a hint on what may be used next time." REFERENCE "Section 7.3.2 ITU G.997.1 [8]" ::= { adslLineExtEntry 3 } adslLineGlitePowerState OBJECT-TYPE SYNTAX INTEGER { none(1), l0(2), -- L0 Power on l1(3), -- L1 Power on but reduced l2(4) -- L2 Power off } MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object specifies the power state this interface is in. If the object adslLineModeActual is set to glite, the value of this object can be either one of the power state from L0 to L2. If the object adslLineTransAtucActual is set to other than G.lite, the value of this object is always set to none(1)." ::= { adslLineExtEntry 4 } adslLineConfProfileDualLite OBJECT-TYPE SYNTAX SnmpAdminString MAX-ACCESS read-write STATUS current DESCRIPTION "The value of this object identifies the row in the ADSL Line Configuration Profile Table, Expires September 2000 [Page 10] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 (adslLineConfProfileTable), which applies for this ADSL line, and channels if applicable, when the mode after initialization is any G.992.2 (G.lite) mode AND adslLineTransAtucConfig has enabled dual-mode. Dual-mode in this case means one or more Full-Rate modes AND one or more Lite modes enabled. If dual-mode has not been enabled by this MIB or if the ATU-C does not support this extension MIB, then the previously existing adslLineConfProfile is used even if the ATU-C mode is one of the G.992.2 modes." ::= { adslLineExtEntry 5 } adslAtucPerfDataExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslAtucPerfDataExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains ADSL physical line counters information not defined in the adslAtucPerfDataTable from the ADSL- LINE-MIB [10]." ::= { adslExtMibObjects 18 } adslAtucPerfDataExtEntry OBJECT-TYPE SYNTAX AdslAtucPerfDataExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry extends the adslAtucPerfDataEntry defined in [10]. Each entry corresponds to an ADSL line." INDEX { ifIndex } ::= { 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, Expires September 2000 [Page 11] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 adslAtucPerfPrev1DayFailedFastR AdslPerfPrevDayCount, adslAtucPerfPrev1DaySesL AdslPerfPrevDayCount, adslAtucPerfPrev1DayUasL AdslPerfPrevDayCount } adslAtucPerfStatFastR OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object indicates the count of fast retrains." REFERENCE "ITU G.997.1 Section 7.4.15.1 [8]" ::= { adslAtucPerfDataExtEntry 1 } adslAtucPerfStatFailedFastR OBJECT-TYPE SYNTAX Counter32 MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object indicates the count of failed fast retrains." REFERENCE "ITU G.997.1 Section 7.4.15.2 [8]" ::= { adslAtucPerfDataExtEntry 2 } adslAtucPerfStatSesL OBJECT-TYPE SYNTAX Counter32 UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object indicates the count of severely errored second-line." REFERENCE "ITU G.997.1 Section 7.2.1.1.7 [8]" ::= { adslAtucPerfDataExtEntry 3 } adslAtucPerfStatUasL OBJECT-TYPE SYNTAX Counter32 UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object indicates the count of unavailable second." REFERENCE "ITU G.997.1 Section 7.2.1.1.9 [8]" ::= { adslAtucPerfDataExtEntry 4 } adslAtucPerfCurr15MinFastR OBJECT-TYPE Expires September 2000 [Page 12] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 SYNTAX PerfCurrentCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the current 15 minute interval when there was fast retrains." REFERENCE "ITU G.997.1 Section 7.4.15.1 [8]" ::= { adslAtucPerfDataExtEntry 5 } adslAtucPerfCurr15MinFailedFastR OBJECT-TYPE SYNTAX PerfCurrentCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the current 15 minute interval when there was failed fast retrains." REFERENCE "ITU G.997.1 Section 7.4.15.2 [8]" ::= { adslAtucPerfDataExtEntry 6 } adslAtucPerfCurr15MinSesL OBJECT-TYPE SYNTAX PerfCurrentCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the current 15 minute interval when there was fast retrains." REFERENCE "ITU G.997.1 Section 7.2.1.1.7 [8]" ::= { adslAtucPerfDataExtEntry 7 } adslAtucPerfCurr15MinUasL OBJECT-TYPE SYNTAX PerfCurrentCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the current 15 minute interval when there was count for unavailable errored seconds." REFERENCE "ITU G.997.1 Section 7.2.1.1.9 [8]" ::= { adslAtucPerfDataExtEntry 8 } adslAtucPerfCurr1DayFastR OBJECT-TYPE SYNTAX AdslPerfCurrDayCount UNITS "seconds" MAX-ACCESS read-only Expires September 2000 [Page 13] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 STATUS current DESCRIPTION "Count of the number of seconds when there was fast retrains during the current day as measured by adslAtucPerfCurr1DayTimeElapsed." REFERENCE "ITU G.997.1 Section 7.4.15.1 [8]" ::= { adslAtucPerfDataExtEntry 9 } adslAtucPerfCurr1DayFailedFastR OBJECT-TYPE SYNTAX AdslPerfCurrDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of seconds when there was failed fast retrains during the current day as measured by adslAtucPerfCurr1DayTimeElapsed." REFERENCE "ITU G.997.1 Section 7.4.15.2 [8]" ::= { adslAtucPerfDataExtEntry 10 } adslAtucPerfCurr1DaySesL OBJECT-TYPE SYNTAX AdslPerfCurrDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of seconds when there was Severe Errored Seconds during the current day as measured by adslAtucPerfCurr1DayTimeElapsed." REFERENCE "ITU G.997.1 Section 7.2.1.1.7 [8]" ::= { adslAtucPerfDataExtEntry 11 } adslAtucPerfCurr1DayUasL OBJECT-TYPE SYNTAX AdslPerfCurrDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of seconds when there was Unavailable Errored Seconds during the current day as measured by adslAtucPerfCurr1DayTimeElapsed." REFERENCE "ITU G.997.1 Section 7.2.1.1.9 [8]" ::= { adslAtucPerfDataExtEntry 12 } Expires September 2000 [Page 14] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 adslAtucPerfPrev1DayFastR OBJECT-TYPE SYNTAX AdslPerfPrevDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was fast retrains within the most recent previous 1-day period." REFERENCE "ITU G.997.1 Section 7.4.15.1 [8]" ::= { adslAtucPerfDataExtEntry 13 } adslAtucPerfPrev1DayFailedFastR OBJECT-TYPE SYNTAX AdslPerfPrevDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was failed fast retrains within the most recent previous 1-day period." REFERENCE "ITU G.997.1 Section 7.4.15.2 [8]" ::= { adslAtucPerfDataExtEntry 14 } adslAtucPerfPrev1DaySesL OBJECT-TYPE SYNTAX AdslPerfPrevDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was severed errored seconds within the most recent previous 1-day period." REFERENCE "ITU G.997.1 Section 7.2.1.1.7 [8]" ::= { adslAtucPerfDataExtEntry 15 } adslAtucPerfPrev1DayUasL OBJECT-TYPE SYNTAX AdslPerfPrevDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was unavailable errored seconds within the most recent previous 1-day period." REFERENCE "ITU G.997.1 Section 7.2.1.1.9 [8]" Expires September 2000 [Page 15] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 ::= { adslAtucPerfDataExtEntry 16 } adslAtucIntervalExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslAtucIntervalExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table provides one row for each ATUC performance data collection interval. ADSL physical interfaces are those ifEntries where ifType is equal to adsl(94)." ::= { adslExtMibObjects 19 } adslAtucIntervalExtEntry OBJECT-TYPE SYNTAX AdslAtucIntervalExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the adslAtucIntervalExtTable." INDEX { ifIndex, adslAtucIntervalNumber } ::= { 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 "Count of seconds in the interval when there was Fast Retrains." ::= { adslAtucIntervalExtEntry 1 } adslAtucIntervalFailedFastR OBJECT-TYPE SYNTAX PerfIntervalCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was Expires September 2000 [Page 16] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 Failed Fast Retrains." ::= { adslAtucIntervalExtEntry 2 } adslAtucIntervalSesL OBJECT-TYPE SYNTAX PerfIntervalCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was severed errors." ::= { adslAtucIntervalExtEntry 3 } adslAtucIntervalUasL OBJECT-TYPE SYNTAX PerfIntervalCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was unavailable errors." ::= { adslAtucIntervalExtEntry 4 } adslAturPerfDataExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslAturPerfDataExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains ADSL physical line counters information not defined in the adslAturPerfDataTable from the ADSL- LINE-MIB [10]." ::= { adslExtMibObjects 20 } adslAturPerfDataExtEntry OBJECT-TYPE SYNTAX AdslAturPerfDataExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry extends the adslAturPerfDataEntry defined in [10]. Each entry corresponds to an ADSL line." INDEX { ifIndex } ::= { adslAturPerfDataExtTable 1 } AdslAturPerfDataExtEntry ::= SEQUENCE { adslAturPerfStatSesL Counter32, adslAturPerfStatUasL Counter32, Expires September 2000 [Page 17] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 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 indicates the count of severely errored second-line." REFERENCE "ITU G.997.1 Section 7.2.1.1.7 [8]" ::= { adslAturPerfDataExtEntry 1 } adslAturPerfStatUasL OBJECT-TYPE SYNTAX Counter32 UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "The value of this object indicates the count of unavailable second." REFERENCE "ITU G.997.1 Section 7.2.1.2.9 [8]" ::= { adslAturPerfDataExtEntry 2 } adslAturPerfCurr15MinSesL OBJECT-TYPE SYNTAX PerfCurrentCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the current 15 minute interval when there was Severe Errored Seconds-Line." REFERENCE "ITU G.997.1 Section 7.2.1.2.7 [8]" ::= { adslAturPerfDataExtEntry 3 } adslAturPerfCurr15MinUasL OBJECT-TYPE SYNTAX PerfCurrentCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION Expires September 2000 [Page 18] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 "Count of seconds in the current 15 minute interval when there was Unavailable Errored Seconds." REFERENCE "ITU G.997.1 Section 7.2.1.2.9 [8]" ::= { adslAturPerfDataExtEntry 4 } adslAturPerfCurr1DaySesL OBJECT-TYPE SYNTAX AdslPerfCurrDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of seconds when there was Severe Errored Seconds during the current day as measured by adslAturPerfCurr1DayTimeElapsed." REFERENCE "ITU G.997.1 Section 7.2.1.2.7 [8]" ::= { adslAturPerfDataExtEntry 5 } adslAturPerfCurr1DayUasL OBJECT-TYPE SYNTAX AdslPerfCurrDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of the number of seconds when there was Unavailable Errored Seconds during the current day as measured by adslAturPerfCurr1DayTimeElapsed." REFERENCE "ITU G.997.1 Section 7.2.1.2.9 [8]" ::= { adslAturPerfDataExtEntry 6 } adslAturPerfPrev1DaySesL OBJECT-TYPE SYNTAX AdslPerfPrevDayCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was severed errored second within the most recent previous 1-day period." REFERENCE "ITU G.997.1 Section 7.2.1.2.7 [8]" ::= { adslAturPerfDataExtEntry 7 } adslAturPerfPrev1DayUasL OBJECT-TYPE SYNTAX AdslPerfPrevDayCount Expires September 2000 [Page 19] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was unavailable errored second within the most recent previous 1-day period." REFERENCE "ITU G.997.1 Section 7.2.1.2.9 [8]" ::= { adslAturPerfDataExtEntry 8 } adslAturIntervalExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslAturIntervalExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table provides one row for each ATUC performance data collection interval. ADSL physical interfaces are those ifEntries where ifType is equal to adsl(94)." ::= { adslExtMibObjects 21 } adslAturIntervalExtEntry OBJECT-TYPE SYNTAX AdslAturIntervalExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry in the adslAturIntervalExtTable." INDEX { ifIndex, adslAturIntervalNumber } ::= { adslAturIntervalExtTable 1 } AdslAturIntervalExtEntry ::= SEQUENCE { adslAturIntervalSesL PerfIntervalCount, adslAturIntervalUasL PerfIntervalCount } adslAturIntervalSesL OBJECT-TYPE SYNTAX PerfIntervalCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was severed errors." ::= { adslAturIntervalExtEntry 1 } adslAturIntervalUasL OBJECT-TYPE Expires September 2000 [Page 20] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 SYNTAX PerfIntervalCount UNITS "seconds" MAX-ACCESS read-only STATUS current DESCRIPTION "Count of seconds in the interval when there was unavailable errors." ::= { adslAturIntervalExtEntry 2 } adslConfProfileExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslConfProfileExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table contains ADSL line profile configuration information not defined in the adslLineConfProfileTable from the ADSL-LINE-MIB [1]. This includes the line mode." ::= { adslExtMibObjects 22 } adslConfProfileExtEntry OBJECT-TYPE SYNTAX AdslConfProfileExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry extends the adslLineConfProfileEntry defined in [1]. Each entry corresponds to an ADSL line profile." INDEX { IMPLIED adslLineConfProfileName} ::= { adslConfProfileExtTable 1 } AdslConfProfileExtEntry ::= SEQUENCE { adslConfProfileLineType INTEGER } adslConfProfileLineType OBJECT-TYPE SYNTAX INTEGER { noChannel (1), -- no channels exist fastOnly (2), -- fast channel exists only interleavedOnly (3), -- interleaved channel exists -- only fastOrInterleaved (4),-- either fast or interleaved -- channels can exist, but -- only one at any time fastAndInterleaved (5)-- both fast or interleaved -- channels exist Expires September 2000 [Page 21] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 } MAX-ACCESS read-create STATUS current DESCRIPTION " This object is used to configure the ADSL physical line mode. " ::= { adslConfProfileExtEntry 1 } adslAlarmConfProfileExtTable OBJECT-TYPE SYNTAX SEQUENCE OF AdslAlarmConfProfileExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "This table extends the adslLineAlarmConfProfileTable and provides threshold parameters for all the counters defined in this MIB module." ::= { adslExtMibObjects 23 } adslAlarmConfProfileExtEntry OBJECT-TYPE SYNTAX AdslAlarmConfProfileExtEntry MAX-ACCESS not-accessible STATUS current DESCRIPTION "An entry extends the adslLineAlarmConfProfileTable defined in [10]. Each entry corresponds to an ADSL alarm profile." INDEX { IMPLIED adslLineAlarmConfProfileName} ::= { adslAlarmConfProfileExtTable 1 } AdslAlarmConfProfileExtEntry ::= SEQUENCE { adslAtucThreshold15MinFailedFastR Unsigned32, adslAtucThreshold15MinSesL Unsigned32, adslAtucThreshold15MinUasL Unsigned32 } adslAtucThreshold15MinFailedFastR OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The number of failed retrains encountered by an ADSL interface within any giving 15 minutes performance Expires September 2000 [Page 22] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 data collection period, which cause the SNMP agent to send an adslAtucFailedFastRTrap. One trap will be sent per interval per interface. A value '0' will disable the trap." ::= { adslAlarmConfProfileExtEntry 1 } adslAtucThreshold15MinSesL OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The number of Severe errored seconds encountered by an ADSL interface withing any giving 15 minutes performance data collection period, which cause the SNMP agent to send an adslAtucSesLTrap. One trap will be sent per interval per interface. A value '0' will disable the trap." ::= { adslAlarmConfProfileExtEntry 2 } adslAtucThreshold15MinUasL OBJECT-TYPE SYNTAX Unsigned32 UNITS "seconds" MAX-ACCESS read-create STATUS current DESCRIPTION "The number of unavailable errored seconds encountered by an ADSL interface withing any giving 15 minutes performance data collection period, which cause the SNMP agent to send an adslAtucUasLThreshTrap. One trap will be sent per interval per interface. A value '0' will disable the trap." ::= { adslAlarmConfProfileExtEntry 3 } -- trap definitions adslExtTraps OBJECT IDENTIFIER ::= { adslExtMibObjects 24 } adslExtAtucTraps OBJECT IDENTIFIER ::= { adslExtTraps 1 } adslAtucFailedFastRThreshTrap NOTIFICATION-TYPE OBJECTS { adslAtucPerfCurr15MinFailedFastR } Expires September 2000 [Page 23] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 STATUS current DESCRIPTION "Failed Fast Retrains 15 minutes threshold reached." ::= { adslExtAtucTraps 0 1 } adslAtucSesLThreshTrap NOTIFICATION-TYPE OBJECTS { adslAtucPerfCurr15MinSesL } STATUS current DESCRIPTION "Severe errored seconds 15 minutes threshold reached." ::= { adslExtAtucTraps 0 2 } adslAtucUasLThreshTrap NOTIFICATION-TYPE OBJECTS { adslAtucPerfCurr15MinUasL } STATUS current DESCRIPTION "Unavailable seconds 15 minutes threshold reached." ::= { adslExtAtucTraps 0 3 } -- 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 manage ADSL ATU-C interfaces." MODULE -- this module MANDATORY-GROUPS { adslExtLineGroup, adslExtLineConfProfileControlGroup, adslExtLineAlarmConfProfileGroup } GROUP adslExtAtucPhysPerfRawCounterGroup DESCRIPTION "This group is optional. Implementations which require continuous ATU-C physical event counters should implement this group." Expires September 2000 [Page 24] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 GROUP adslExtAturPhysPerfRawCounterGroup DESCRIPTION "This group is optional. Implementations which require continuous ATU-R physical event counters should implement this group." OBJECT adslAtucThreshold15MinFailedFastR MIN-ACCESS read-write DESCRIPTION "Read-write access is applicable when static profiles are implemented." OBJECT adslAtucThreshold15MinSesL MIN-ACCESS read-write DESCRIPTION "Read-write access is applicable when static profiles are implemented." OBJECT adslAtucThreshold15MinUasL MIN-ACCESS read-write DESCRIPTION "Read-write access is applicable when static profiles are implemented." OBJECT adslLineConfProfileDualLite MIN-ACCESS read-only DESCRIPTION "Read-only access is applicable when static profiles are implemented." ::= { adslExtCompliances 1 } -- units of conformance adslExtLineGroup OBJECT-GROUP OBJECTS { adslLineConfProfileDualLite, adslLineTransAtucCap, adslLineTransAtucConfig, adslLineTransAtucActual, adslLineGlitePowerState } STATUS current DESCRIPTION "A collection of objects providing configuration information about an ADSL Line." ::= { adslExtGroups 1 } adslExtAtucPhysPerfRawCounterGroup OBJECT-GROUP Expires September 2000 [Page 25] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 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 } adslExtAturPhysPerfRawCounterGroup OBJECT-GROUP OBJECTS { adslAturPerfStatSesL, adslAturPerfStatUasL, adslAturPerfCurr15MinSesL, adslAturPerfCurr15MinUasL, adslAturPerfCurr1DaySesL, adslAturPerfCurr1DayUasL, adslAturPerfPrev1DaySesL, adslAturPerfPrev1DayUasL, adslAturIntervalSesL, adslAturIntervalUasL } STATUS current DESCRIPTION "A collection of objects providing raw performance counts on an ADSL Line (ATU-C end)." ::= { adslExtGroups 3 } adslExtLineConfProfileControlGroup OBJECT-GROUP OBJECTS { adslConfProfileLineType } STATUS current DESCRIPTION "A collection of objects providing profile control for the ADSL system." Expires September 2000 [Page 26] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 ::= { adslExtGroups 4 } adslExtLineAlarmConfProfileGroup OBJECT-GROUP OBJECTS { adslAtucThreshold15MinFailedFastR, adslAtucThreshold15MinSesL, adslAtucThreshold15MinUasL } STATUS current DESCRIPTION "A collection of objects providing alarm profile control for the ADSL system." ::= { adslExtGroups 5 } adslExtNotificationsGroup NOTIFICATION-GROUP NOTIFICATIONS { adslAtucFailedFastRThreshTrap, adslAtucSesLThreshTrap, adslAtucUasLThreshTrap } STATUS current DESCRIPTION "The collection of ADSL 2 notifications." ::= { adslExtGroups 6 } END 9. Acknowledgments This document is a product of the ADSL MIB Working Group. 10. References [1] B. Wijnen, D. Harrington, R. Presuhn, "Structure of Management Information Version 2 (SMIv2)" RFC 2578, April 1999. [2] K. McCloghrie, D. Perkins, J. Schoenwaelder, "Textual Conventions for SMIv2", RFC 2579, April 1999. [3] McCloghrie, K., and M. Rose, Editors, "Management Information Base for Network Management of TCP/IP-based internets: MIB-II", STD 17, RFC 1213, Hughes LAN Systems, Performance Systems International, March 1991. [4] McCloghrie, K. and F. Kastenholz, "The Interfaces Group MIB using SMIv2", RFC 2233, Cisco Systems, FTP Software, November 1997. Expires September 2000 [Page 27] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 [5] SNMPv2 Working Group, Case, J., McCloghrie, K., Rose, M., and S. Waldbusser, "Management Information Base for version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1907, January 1996. [6] Case, J., Fedor, M., Schoffstall, M., and J. Davin. " A Simple Network Management Protocol (SNMP)", STD 15, RFC 1157, SNMP Research, Performance Systems International, MIT Lab for Computer Science, May 1990. [7] SNMPv2 Working Group, 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. [8] ITU Draft Recommendation G.997.1 "Physical Layer Management for Digital Subscriber Line (DSL) Transceivers.", January 1999 [9] Chris Hansen, ITU "White Paper submission of Recommendation G.992.2" June/July 1999. [10] G. Bathrick, F. Ly "Definitions of Managed Objects for the ADSL Lines", May 14, 1999. [11] D. Harrington, R. Presuhn, B. Wijnen, "An architecture for Describing SNMP Management Frameworks", RFC 2571, April 1999. [14] Rose, M. and K. McCloghrie, "Structure and Identification of Management Information for TCP/IP-based Internets", STD 16, RFC 1155, May 1990. [15] Rose, M. and K. McCloghrie, "Concise MIB Definitions", STD 16, RFC 1212, March 1991. [16] Rose, M., "A Convention for Defining Traps for use with the SNMP", RFC 1215, March 1991. [17] McCloghrie K., Perkins D. and J. Schoenwaelder, "Conformance Statements for SMIv2", RFC 2580, April 1999. [18] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, Expires September 2000 [Page 28] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 "Introduction to Community-based SNMPv2", RFC 1901, January 1996. [19] Case, J., McCloghrie, K., Rose, M. and S. Waldbusser, "Transport Mappings for Version 2 of the Simple Network Management Protocol (SNMPv2)", RFC 1906, January 1996. [20] Case, J., Harrington D., Presuhn R. and B. Wijnen, "Message Processing and Dispatching for the Simple Network Management Protocol (SNMP)", RFC 2572, April 1999. [21] Blumenthal, U. and B. Wijnen, "User-based Security Model (USM) for version 3 of the Simple Network Management Protocol (SNMPv3)", RFC 2574, April 1999. [22] Levi, D., Meyer, P. and B. Stewart, "SNMP Applications", RFC 2573, April 1999. [23] Wijnen, B., Presuhn, R. and K. McCloghrie, "View-based Access Control Model (VACM) for the Simple Network Management Protocol (SNMP)", RFC 2575, April 1999. 10. Security Considerations 1) Blocking unauthorized access to the ADSL MIB via the element management system is outside the scope of this document. It should be noted that access to the MIB permits the unauthorized entity to modify the profiles (sect 6.4) such that both subscriber service and network operations can be interfered with. Subscriber service can be altered by modifying any of a number of service characteristics such as rate partitioning and maximum transmission rates. Network operations can be impacted by modification of trap thresholds such as SNR margins. 2) There are a number of managed objects in this MIB that may be considered to contain sensitive information. In particular, the certain objects may be considered sensitive in many environments, since it would allow an intruder to obtain information about which vendor's equipment is in use on the network. Therefore, it may be important in some environments to control read access to these Expires September 2000 [Page 29] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 objects and possibly to even encrypt the values of these object when sending them over the network via SNMP. Not all versions of SNMP provide features for such a secure environment. SNMPv1 by itself is such an insecure environment. Even if the network itself is secure (for example by using IPSec), even then, there is no control as to who on the secure network is allowed to access and GET (read) the objects in this MIB. It is recommended that the implementors consider the security features as provided by the SNMPv3 framework. Specifically, the use of the User-based Security Model RFC 2574 [21] and the View-based Access Control Model RFC 2575 [23] is recommended. It is then a customer/user responsibility to ensure that the SNMP entity giving access to an instance of this MIB, is properly configured to give access to those objects only to those principals (users) that have legitimate rights to access them. 3) ADSL layer connectivity from the ATU-R will permit the subscriber to manipulate both the ADSL link directly and the AOC/EOC channels for their own loop. For example, unchecked or unfiltered fluctuations initiated by the subscriber could generate sufficient traps to potentially overwhelm either the management interface to the network or the element manager. Other attacks affecting the ATU-R portions of the MIB may also be possible. 11. Intellectual Property Notice The IETF takes no position regarding the validity or scope of any intellectual property or other rights that might be claimed to pertain to the implementation or use of the technology described in this document or the extent to which any license under such rights might or might not be available; neither does it represent that it has made any effort to identify any such rights. Information on the IETF's procedures with respect to rights in standards-track and standards-related documentation can be found in BCP-11. Copies of claims of rights made available for publication and any assurances of licenses to be made available, or the result of an attempt made to obtain a general license or permission for the use of such Expires September 2000 [Page 30] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 proprietary rights by implementers or users of this specification can be obtained from the IETF Secretariat." The IETF invites any interested party to bring to its attention any copyrights, patents or patent applications, or other proprietary rights which may cover technology that may be required to practice this standard. Please address the information to the IETF Executive Director. 12. Authors' Addresses Faye Ly Copper Mountain Networks Norcal Office 2470 Embarcadero Way Palo Alto, CA 94303 Phone: +1 650-687-3323 Fax: +1 650-687-3372 EMail: faye@coppermountain.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 13. Full Copyright Statement Copyright (C) The Internet Society (1999). All Rights Reserved. This document and translations of it may be copied and furnished to 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 Expires September 2000 [Page 31] INTERNET-DRAFT ADSL Line Extension MIB June 5, 2000 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. Expires September 2000 [Page 32]