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Versions: 00 01 02                                                      
                      Network Working Group                                       M. Boucadair
                      Internet Draft                                        France Telecom R&D
                      Document: draft-boucadair-ipte-acct-pib-01.txt             December 2002
                      Category: Experimental
                      
                      
                               An IP Traffic Engineering PIB for Accounting purposes
                                        <draft-boucadair-ipte-acct-pib-01.txt>
                      
                      
                      Status of this Memo
                      
                         This document is an Internet-Draft and is in full conformance with
                         all provisions of Section 10 of RFC 2026 [1].
                      
                         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.
                      
                      Abstract
                      
                         This  document  defines  a  set  of  IP  Traffic  Engineering  Policy
                         Provisioning Classes (PRCs) for accounting usage within the context
                         of a COPS-based policy enforcement scheme. The purpose of those PRCs
                         is to provide information exploitable by the IP Traffic Engineering
                         decision-making process. Those PRCs are intended for use by the
                         reporting process of the IP TE Client-Type [2].
                      
                      Table of Contents
                      
                         1. Introduction....................................................2
                         2. Conventions used in this document...............................3
                         3. Changes since last version......................................3
                         4. Accounting and Traffic Engineering..............................3
                         4.1. Introduction..................................................3
                         4.2. The IP TE Selection Tables....................................4
                         4.3. The IP TE Accounting Usage Tables............................45
                         4.4. PIB overview..................................................5
                         5. IP TE Usage PIB.................................................5
                         6. Security Considerations........................................17
                      
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                         7. References.....................................................17
                         8. Acknowledgments................................................18
                         9. Author's Addresses.............................................18
                      
                      
                      1. Introduction
                      
                         Traffic  engineering  is  one  of  the  possible  means  for  solving
                         congestion problems and permitting efficient use of the network
                         resources. Indeed, several tools have been proposed to achieve this
                         goal. Nevertheless, only few solutions introduce a high level of
                         automation for the allocation of resources and the configuration
                         operations.
                      
                         The design of an IP Traffic Engineering (IP TE) policy implies the
                         manipulation of a large amount of configuration information that
                         includes  routing  considerations,  traffic  forecast,  available
                         resources, etc. These parameters are provisioned as configuration
                         information  to  the  network  devices  by  means  of  a  COPS-based
                         communication scheme, thanks to the use of a specific client-type
                         [2]. But remains the choice of the appropriate parameters to meet
                         network constraints as well as Quality Of Service (QOS) requirements,
                         and also to observe the impact of such choice on the stability of the
                         network.
                      
                         From this standpoint, several methods can be adopted: either use
                         statistical data based on mathematical models, or data resulting of
                         measurements. The advantage of the second method is that it allows
                         for real time statistics.
                      
                         Therefore, the actual enforcement of a traffic engineering policy
                         requires a feedback mechanism not only to qualify how efficient such
                         enforcement is, but also the impact the future decisions made by the
                         Policy Decision Point (PDP) and installed by the PDP at the Policy
                         Enforcement Point (PEP)-embedded devices.
                      
                         Within the context of this document, the data recorded, monitored
                         and/or reported by the PEP are the results of the activation of
                         dynamic routing processes (e.g. Open Shortest Path First (OSPF) and
                         Border Gateway Protocol version 4 (BGP)).
                      
                         We propose in this document to define a set of IP TE accounting usage
                         Policy Rule Classes (PRC) that will be monitored, recorded and/or
                         reported by the PEP. Those PRCs complement the PRC classes that have
                         been defined in the Framework of COPS-PR PIB for Policy Usage [3].
                      
                         This document is organised as follows:
                      
                         - Section 4 shows the use of accounting mode within a TE context.
                         - Section 5 presents the IP TE Usage PIB.
                      
                      
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                      2. Conventions used in this document
                      
                         The key words "MUST", "MUST NOT", "REQUIRED", "SHALL", "SHALL NOT",
                         "SHOULD", "SHOULD NOT", "RECOMMENDED",  "MAY", and "OPTIONAL" in this
                         document are to be interpreted as described in RFC-2119 [4].
                      
                      3. Changes since last version
                      
                         -    The introduction has been reworded
                         -    Updating the PIB by introducing IS-IS related information
                         -    The references section has been updated
                      
                      4. Accounting and Traffic Engineering
                      4.1. Introduction
                      
                         The actual enforcement of an IP TE policy is conditioned by the
                         manipulation of information such as traffic forecast (according to
                         customers' requests, for example [5]), and traffic load calculation
                         (see  fig.1).  Within  the  context  of  a  COPS  architecture,  the
                         qualification of a policy's efficiency could be based upon the
                         accounting mode.
                      
                         [6] defines the capability to report information to the PDP. Several
                         types of reports are defined: success, failure and accounting. A
                         framework of the use of the accounting mode is introduced in [3].
                      
                                             +-----------------+
                                             |       Other     |
                                             | external system |
                                             +-----------------+
                                                      ^
                                                      |       +-----------------+
                                                      |       |       TE        |
                                                      |       | Forecast Block  |
                                                      |       +-----------------+
                                                      |               ^ +------------------+
                                                      |               | |       PDP        |
                                                      |               | | Decision-making  |
                                                      |               | +--------/\--------+
                                                      |               | +--------\/--------+
                                                      |               | |                  |
                                                      |               | |       PDP        |
                                                      |               | |               |
                                                      |               | +----------------                                                                                       --+
                         +--------------------------+     |               |       ^
                         |          PEP             |     |               |       |
                         | +-------------------+    |     |               |       |
                         | | IP TE Client-Type |    |     |               |       |
                         | | +--------------+  |    |<------+               |       |
                         | | |Report Process|  |    |<-------------------------+       |
                         | | |-Monitoring   |  |    |<---------------------------------- +
                      
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                         | | |-Recording    |  |    |    IP TE REPORT
                         | | |-Reporting    |  |    |
                         | | +--------------+  |    |
                         | +-------------------+    |
                         +--------------------------+
                                          Fig.1: IP TE Reporting Mechanism
                      
                         According to Fig.1, the report sent by the IP TE client type is
                         received by the PDP.
                      
                         The IP TE report classes are instantiated as multiple Provisioning
                         Instance  (PRI)  instances,  each  of  which  being  identified  by
                         PRovisioning  Instance  iDentifier  (PRID).  These  classes  contain
                         attributes  that  actually  describe  the  accounting  IP  TE-related
                         information collected in the network.
                      
                      4.2. The IP TE Selection Tables
                      
                         The documents [7], [8] and [9] define IP Traffic Engineering Policy
                         Information Base (IP TE PIB). The IP TE PIB could be organized into
                         the following provisioning classes:
                      
                         1. The Forwarding classes: the information contained in these classes
                            is meant to provide a detailed description of the traffic-
                            engineered routes. Only one table is defined: the IP TE Route
                            table, which describes the information related to TE routes that
                            have been installed by the routers in their FIBs.
                      
                         2. The Metrics classes: the information stored in the tables included
                            in this class is meant to provide the description of the metric
                            values that will be taken into account by intra- and inter-domain
                            routing  protocols  for  the  computation  and  the  selection  of
                            traffic-engineered routes.
                      
                         3. The Statistics classes: the information contained in these classes
                            is meant to provide statistics on the enforcement of the TE
                            policies.
                      
                         These tables are used as selection tables.
                      
                      4.3. The IP TE Accounting Usage Tables
                      
                         Within the context of [10], three policies are defined:
                         - The selection criteria policy: defines the conditions used by PEP
                           to monitor and record a usage policy.
                         - The usage policy: defines what attributes are monitored and/or
                           recorded by the PEP.
                         - The linkage policy: provides a linkage for the selection and usage
                           policies.
                      
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                         As mentioned above, the tables defined in the IP TE PIB are used as
                         the Selection policies and we introduced in the following Section 4
                         the Usage classes.
                      
                         In addition, the IP TE Selection Usage Combination Capability Table
                         contains objects pointing to the IP TE Usage tables, IP TE Selection
                         tables and Threshold tables.
                      
                      4.4. PIB overview
                      
                         The PIB defined within the context of IP traffic engineering for
                         accounting purposes has the goal to complete the whole COPS TE
                         reporting machinery. This PIB contains the following tables:
                      
                         - ospfTeRouterUsageTable: this class defines the usage attributes to
                                              be reported, and which are related to the router
                                              identified by the Router-Id.
                         - ospfTeUsageTable                                                 : this class defines the usage attributes to use
                                              for OSPF TE purposes.
                         - isisTeUsageTable                                                 : this class defines the usage attributes to use
                                              for IS-IS TE purposes.
                         - bgpTeTable                                                       :  this  table  contains  a  set  of  accounting
                                              information related to the activation of BGP
                                              process enabling exchange of QOS information.
                         - ospfTeThresholdTable: this class defines the threshold attributes
                                              corresponding  to  OSPF  TE  usage  attributes
                                              specified in ospfTeUsageTable.
                         - isisTeThresholdTable: this class defines the threshold attributes
                                              corresponding  to  IS-IS  TE  usage  attributes
                                              specified in isisTeUsageTable.
                         - bgpTeThresholdTable: this class defines the threshold attributes
                                              corresponding to BGP usage attributes specified
                                              in bgpTeUsageTable.
                      5. IP TE Usage PIB
                      
                         --
                         -- The PIB defined within the context of IP traffic engineering
                         -- for accounting purposes has the goal to complete the whole
                         -- COPS TE reporting machinery.
                         -- Data contained in this PIB arenÆt stabilized yet and will be
                         -- modified and updated as necessary.
                         --
                      
                         IPTE-ACCOUNTING-PIB PIB-DEFINITIONS ::= BEGIN
                      
                               IMPORTS
                                   ExtUTCTime, Unsigned32, Unsigned64,
                                   Integer32, MODULE-IDENTITY, OBJECT-TYPE
                                              FROM COPS-PR-SPPI
                                   TruthValue, TEXTUAL-CONVENTION
                      
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                                              FROM SNMPv2-TC
                                   PolicyInstanceId, PolicyReferenceId
                                              FROM COPS-PR-SPPI-TC;
                                   RoleCombination
                                              FROM POLICY-DEVICE-AUX-MIB;
                                   Counter64
                                              FROM SNMPv2-SMI;
                      
                               ipTeAccountingPib  MODULE-IDENTITY
                      
                                   SUBJECT-CATEGORIES  {tbd}
                                   LAST-UPDATED       "200201250900Z"
                                   ORGANIZATION       "France Telecom R&D"
                                   CONTACT-INFO       "
                                              Mohamed Boucadair
                                              Adresse: 42, rue des Coutures
                                              BP 6243
                                              14066 Caen Cedex
                                              Phone: +33 2 31 75 92 31
                                              Email: Mohamed.Boucadair@francetelecom.com"
                      
                                 DESCRIPTION
                                         "The PIB module that contains classes describing the
                                         parameters to be monitored, recorded and/or reported
                                         by the PEP for Traffic Engineering accounting
                                         purposes."
                      
                                     ::= {tbd}
                      
                            --
                            -- The ipTe Accounting Class
                            --
                      
                            ipTeAccountingClasses
                                    OBJECT IDENTIFIER ::= { ipTeAccountingPib  1 }
                      
                            --
                            -- The MPLS TE Accounting Class
                            --
                              -- This class defines tables related to MPLS TE
                              -- To be done in next version of this draft.
                      
                            lspTeAccountingClasses
                                    OBJECT IDENTIFIER ::= { ipTeAccountingPib  2 }
                      
                            --
                            -- ospfTeRouterUsageTable
                            --
                      
                              ospfTeRouterUsageTable OBJECT-TYPE
                      
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                                   SYNTAX          SEQUENCE OF ospfTeRouterUsageEntry
                                   PIB-ACCESS      report-only
                                   STATUS          current
                                   DESCRIPTION
                                        "This class defines the usage attributes to be
                                        reported, and which are related to the router
                                        identified by the Router-Id."
                      
                                   ::= { ipTeAccountingClasses  1}
                      
                              ospfTeRouterUsageEntry  OBJECT-TYPE
                      
                                   SYNTAX          ospfTeUsageRouterEntry
                                   STATUS          current
                                   DESCRIPTION
                                        "An entry for the ospfTeRouterUsageTable."
                      
                                   PIB-INDEX  { ospfTeRouterUsagePrid}
                                   UNIQUENESS { ospfTeRouterUsageLinkPrid,
                                              ospfTeUsageIfActif}
                      
                                   ::= {ospfTeRouterUsageTable 1}
                      
                              ospfTeRouterUsageEntry ::= SEQUENCE {
                                              ospfTeRouterUsagePrid        InstanceID,
                                              ospfTeRouterUsageLinkPrid    Prid,
                                              ospfTeRouterUsageIfActif                                                                       Counter64 }
                      
                              ospfTeRouterUsagePrid        OBJECT-TYPE
                      
                                   SYNTAX      Prid
                                   STATUS      current
                                   DESCRIPTION
                                        "An integer index that uniquely identifies this
                                        instance of the ospfTeRouterUsage class."
                      
                                   ::= { ospfTeRouterUsageEntry 1 }
                      
                              ospfTeRouterUsageLinkPrid        OBJECT-TYPE
                      
                                   SYNTAX      Prid
                                   STATUS      current
                                   DESCRIPTION
                                        "The PRID of the Linkage policy instance used to refer
                                        this usage policy instance."
                      
                                   ::= { ospfTeRouterUsageEntry 2 }
                      
                      
                              ospfTeRouterUsageIfActif         OBJECT-TYPE
                      
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                                   SYNTAX       Counter64
                                   STATUS       current
                                   DESCRIPTION
                                        "The number of interfaces that participate to an OSPF-
                                        TE route computation in the router identified by
                                        Router-ID."
                      
                                   ::= { ospfTeRouterUsageEntry 3 }
                      
                            --
                            -- ospfTeUsageTable
                            --
                      
                            ospfTeUsageTable OBJECT-TYPE
                      
                                   SYNTAX          SEQUENCE OF ospfTeUsageEntry
                                   PIB-ACCESS      report-only
                                   STATUS          current
                                   DESCRIPTION
                                        "This class defines the usage attributes to use for
                                        OSPF TE purposes."
                      
                                   ::= { ipTeAccountingClasses  2 }
                      
                           ospfTeUsageEntry   OBJECT-TYPE
                      
                                   SYNTAX          ospfTeUsageEntry
                                   STATUS          current
                                   DESCRIPTION
                                        "An entry for the ospfTeUsageTable."
                      
                                   PIB-INDEX  { ospfTeUsagePrid}
                                   UNIQUENESS                                                { ospfTeUsageLinkPrid,
                                              OspfTeUsageLinkDelay }
                      
                                   ::= {ospfTeUsageTable 1 }
                      
                           ospfTeUsageEntry ::= SEQUENCE { ospfTeUsagePrid InstanceID,
                                                                                             ospfTeUsageLinkPrid     Prid,
                                                      ospfTeUsageLinkDelay    Unsigned32 }
                      
                           ospfTeUsagePrid        OBJECT-TYPE
                      
                                   SYNTAX      Prid
                                   STATUS      current
                                   DESCRIPTION
                                        "An integer index that uniquely identifies this
                                        instance of the ospfTeUsage class."
                      
                                   ::= { ospfTeUsageEntry 1 }
                      
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                           ospfTeUsageLinkPrid        OBJECT-TYPE
                      
                                   SYNTAX      Prid
                                   STATUS      current
                                   DESCRIPTION
                                        "The PRID of the Linkage policy instance used to refer
                                        this usage policy instance."
                      
                                   ::= { ospfTeUsageEntry 2 }
                      
                           ospfTeUsageLinkDelay OBJECT-TYPE
                      
                                   SYNTAX       Unsigned32
                                   STATUS       current
                                   DESCRIPTION
                                        "The one-way delay that has been observed on this
                                        route."
                      
                                   ::= { ospfTeUsageEntry 3 }
                      
                            --
                            -- isisTeUsageTable
                            --
                      
                            isisTeUsageTable OBJECT-TYPE
                      
                                   SYNTAX          SEQUENCE OF isisTeUsageEntry
                                   PIB-ACCESS      report-only
                                   STATUS          current
                                   DESCRIPTION
                                        "This class defines the usage attributes to use for
                                        IS-IS TE purposes."
                      
                                   ::= { ipTeAccountingClasses  3 }
                      
                           isisTeUsageEntry   OBJECT-TYPE
                      
                                   SYNTAX          isisTeUsageEntry
                                   STATUS          current
                                   DESCRIPTION
                                        "An entry for the isisTeUsageTable."
                      
                                   PIB-INDEX  { isisTeUsagePrid}
                                   UNIQUENESS                                                { isisTeUsageLinkPrid,
                                              isisTeUsageLinkDelay }
                      
                                   ::= {isisTeUsageTable 1 }
                      
                           isisTeUsageEntry ::= SEQUENCE {
                                              isisTeUsagePrid         InstanceID,
                      
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                                                                                     isisTeUsageLinkPrid     Prid,
                                              isisTeUsageLinkDelay    Unsigned32 }
                      
                           isisTeUsagePrid        OBJECT-TYPE
                      
                                   SYNTAX      Prid
                                   STATUS      current
                                   DESCRIPTION
                                        "An integer index that uniquely identifies this
                                        instance of the isisTeUsage class."
                      
                                   ::= { isisTeUsageEntry 1 }
                      
                           isisTeUsageLinkPrid        OBJECT-TYPE
                      
                                   SYNTAX      Prid
                                   STATUS      current
                                   DESCRIPTION
                                        "The PRID of the Linkage policy instance used to refer
                                        this usage policy instance."
                      
                                   ::= { isisTeUsageEntry 2 }
                      
                           isisTeUsageLinkDelay OBJECT-TYPE
                      
                                   SYNTAX       Unsigned32
                                   STATUS       current
                                   DESCRIPTION
                                        "The one-way delay that has been observed on this
                                        route."
                      
                                   ::= { isisTeUsageEntry 3 }
                      
                            --
                            -- bgpTeUsageTable
                            --
                      
                           bgpTeTable          OBJECT-TYPE
                      
                                   SYNTAX         SEQUENCE OF bgpTeUsageEntry
                                   PIB-ACCESS     report-only
                                   STATUS         current
                                   DESCRIPTION
                                        "This table contains a set of accounting information
                                        related to the activation of BGP process enabling
                                        exchange of QOS information."
                      
                                             ::= { ipTeAccountingClasses   4 }
                      
                            bgpTeUsageEntry          OBJECT-TYPE
                      
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                                   SYNTAX          bgpTeUsageEntry
                                   STATUS          current
                                   DESCRIPTION
                                        "An entry to bgpTeUsage Class."
                      
                      
                                   PIB-INDEX      { bgpTeUsagePrid }
                                   UNIQUENESS     { bgpTeUsageLinkPrid,
                                                    bgpTeUsageActIf,
                                                                                           bgpTeUsageOneWayDelay }
                      
                                   ::= { bgpTeUsageTable 1 }
                      
                            bgpTeUsageEntry ::= SEQUENCE {
                                               bgpTeUsagePrid           InstanceId,
                                               bgpTeUsageLinkPrid       Prid,
                                              bgpTeUsageActIf          Counter64,
                                              bgpTeUsageOneWayDelay     Unsigned32 }
                      
                            bgpTeUsagePrid                  OBJECT-TYPE
                      
                                    SYNTAX                InstanceId
                                    STATUS                current
                                    DESCRIPTION
                                        "An integer index that uniquely identifies this
                                        instance of the bgpTeUsage class."
                      
                                    ::= { bgpTeUsageEntry 1 }
                      
                            bgpTeUsageLinkPrid             OBJECT-TYPE
                      
                                    SYNTAX                Prid
                                    STATUS                current
                                    DESCRIPTION
                                        "The PRID of the Linkage policy instance used to base
                                        this usage policy instance upon."
                      
                                    ::= { bgpTeUsageEntry 2 }
                      
                            bgpTeUsageActIf                OBJECT-TYPE
                      
                                    SYNTAX                 Counter64
                                    STATUS                 current
                                    DESCRIPTION
                                        "Specifies the number of interfaces that participate
                                        to the BGP route computation process."
                      
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                                    ::= { bgpTeUsageEntry 3 }
                      
                            bgpTeUsageOneWayDelay        OBJECT-TYPE
                      
                                  SYNTAX                Unsigned32
                                  STATUS                 current
                                  DESCRIPTION
                                        "Specifies the one-way delay that has been observed on
                                        this route."
                      
                                    ::= { bgpTeUsageEntry 4 }
                      
                      
                         --
                         -- The Threshold class that accompanies the OSPF and BGP usage
                         -- tables
                         --
                              --
                              -- OSPF Threshold attributes
                              --
                      
                           ospfTeThresholdTable OBJECT-TYPE
                      
                                 SYNTAX         SEQUENCE OF ospfThresholdEntry
                                    PIB-ACCESS     Install
                                    STATUS         current
                                    DESCRIPTION
                                        "This class defines the threshold attributes
                                        corresponding to OSPF TE usage attributes specified in
                                        ospfTeUsageTable."
                      
                                    ::= { ipTeAccountingClasses  5 }
                      
                            ospfTeThresholdEntry   OBJECT-TYPE
                      
                                 SYNTAX          ospfTeThresholdEntry
                                    STATUS          current
                                    DESCRIPTION
                                        "Defines the attributes to hold threshold values."
                      
                                    PIB-INDEX { ospfTeThresholdId }
                      
                                    ::= { ospfTeThresholdId 1 }
                      
                      
                      
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                            ospfTeThresholdEntry::= SEQUENCE {
                                     ospfTeThresholdId             InstanceID,
                                     ospfTeThresholdBwThresholds     Integer64,
                                     ospfTeThresholdRsvBwThresholds  Integer64 }
                      
                            ospfTeThresholdId   OBJECT-TYPE
                      
                                 SYNTAX       InstanceId
                                    STATUS       current
                                    DESCRIPTION
                                        "Arbitrary integer index that uniquely identifies an
                                        instance of the class."
                      
                                    ::= { ospfTeThresholdEntry 1 }
                      
                           ospfTeThresholdBwThresholds  OBJECT-TYPE
                      
                                    SYNTAX       Integer64
                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold the used bandwidth on the link
                                        shouldn't exceed."
                      
                                    ::= { ospfTeThresholdEntry  2 }
                      
                           ospfTeThresholdRsvBwThresholds   OBJECT-TYPE
                      
                                 SYNTAX       Integer64
                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold the reserved bandwidth on the link
                                        shouldn't exceed."
                      
                                    ::= { ospfTeThresholdEntry 3 }
                      
                            --
                            -- ISIS Threshold attributes
                            --
                      
                           isisTeThresholdTable OBJECT-TYPE
                      
                                 SYNTAX         SEQUENCE OF isisThresholdEntry
                                    PIB-ACCESS     Install
                                    STATUS         current
                                    DESCRIPTION
                      
                      
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                                        "This class defines the threshold attributes
                                        corresponding to ISIS TE usage attributes specified in
                                        isisTeUsageTable."
                      
                                    ::= { ipTeAccountingClasses  6 }
                      
                            isisTeThresholdEntry   OBJECT-TYPE
                      
                                 SYNTAX          isisTeThresholdEntry
                                    STATUS          current
                                    DESCRIPTION
                                        "Defines the attributes to hold threshold values."
                      
                                    PIB-INDEX { isisTeThresholdId }
                      
                                    ::= { isisTeThresholdId 1 }
                      
                            isisTeThresholdEntry::= SEQUENCE {
                                     isisTeThresholdId             InstanceID,
                                     isisTeThresholdBwThresholds     Integer64,
                                     isisTeThresholdRsvBwThresholds  Integer64 }
                      
                            isisTeThresholdId   OBJECT-TYPE
                      
                                 SYNTAX       InstanceId
                                    STATUS       current
                                    DESCRIPTION
                                        "Arbitrary integer index that uniquely identifies an
                                        instance of the class."
                      
                                    ::= { isisTeThresholdEntry 1 }
                      
                           isisTeThresholdBwThresholds  OBJECT-TYPE
                      
                                    SYNTAX       Integer64
                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold the used bandwidth on the link
                                        shouldn't exceed."
                      
                                    ::= { isisTeThresholdEntry  2 }
                      
                           isisTeThresholdRsvBwThresholds   OBJECT-TYPE
                      
                                 SYNTAX       Integer64
                      
                      
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                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold the reserved bandwidth on the link
                                        shouldn't exceed."
                      
                                    ::= { isisTeThresholdEntry 3 }
                      
                              --
                              -- BGP Threshold attributes
                              --
                      
                           bgpTeThresholdTable OBJECT-TYPE
                      
                                 SYNTAX         SEQUENCE OF bgpThresholdEntry
                                    PIB-ACCESS     Install
                                    STATUS         current
                                    DESCRIPTION
                                        "This class defines the threshold attributes
                                        corresponding to BGP usage attributes specified in
                                        bgpTeUsageTable."
                      
                                    ::= { ipTeAccountingClasses  7 }
                      
                            bgpTeThresholdEntry   OBJECT-TYPE
                      
                                 SYNTAX          bgpTeThresholdEntry
                                    STATUS          current
                                    DESCRIPTION
                                        "Defines the attributes to hold threshold values."
                      
                                    PIB-INDEX { bgpTeThresholdPrid }
                      
                                    ::= { bgpTeThresholdId 1 }
                      
                            bgpTeThresholdEntry ::= SEQUENCE {
                                      bgpTeThresholdId                                                               InstanceID,
                                                                             bgpTeThresholdNlriAddress       InetAddress,
                                      bgpTeThresholdNextHopAddress    InetAddress,
                                      bgpTeThresholdOneWayDelayThreshold      Integer64,
                                                                             bgpTeThresholdInterPacketDelayThreshold Integer64,
                                      bgpTeThresholdLossRateThreshold         Integer64 }
                      
                           bgpTeThresholdId   OBJECT-TYPE
                      
                                 SYNTAX       InstanceId
                                    STATUS       current
                      
                      
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                                    DESCRIPTION
                                        "Arbitrary integer index that uniquely identifies an
                                        instance of the class."
                      
                                    ::= { bgpTeThresholdEntry 1 }
                      
                            bgpTeThresholdNlriAddress        OBJECT-TYPE
                      
                                   SYNTAX       InetAddress
                                   STATUS       current
                                   DESCRIPTION
                                        "The IP address to match against the NLRI field of
                                        QOS_NLRI attribute of the BGP4 UPDATE message
                                        introduced in [11]."
                      
                                       ::= { bgpTeThresholdEntry 2 }
                      
                            bgpTeThresholdNextHopAddress     OBJECT-TYPE
                      
                                 SYNTAX       InetAddress
                                    STATUS       current
                                    DESCRIPTION
                                        "The address of the next router."
                      
                                    ::= { bgpTeThresholdEntry 3 }
                      
                           bgpTeThresholdOneWayDelayThreshold  OBJECT-TYPE
                      
                                 SYNTAX       Integer64
                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold of the one-way delay, that will trigger
                                        a report in the next reporting interval when
                                        exceeded."
                      
                                    ::= { bgpTeThresholdEntry  4 }
                      
                            bgpTeThresholdInterPacketDelayThreshold  OBJECT-TYPE
                      
                                 SYNTAX       Integer64
                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold of the inter-packet delay variation,
                                        that will trigger a report in the next reporting
                                        interval, when exceeded."
                      
                                    ::= { bgpTeThresholdEntry 5 }
                      
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                           bgpTeThresholdLossRateThreshold  OBJECT-TYPE
                      
                                 SYNTAX       Integer64
                                    STATUS       current
                                    DESCRIPTION
                                        "The threshold, in terms of loss rate, that will
                                        trigger a report in the next reporting interval, when
                                        exceeded."
                      
                                    ::= { bgpTeThresholdEntry 6 }
                      
                         END
                      
                      
                      6. Security Considerations
                      
                         Data manipulated within the context of IP TE accounting could be used
                         by the IP TE decision-making processes, but only authorized COPS-PR
                         communications can take place. Therefore, this draft does not
                         introduce any additional security issues other than those that have
                         been identified in the COPS-PR specification [12].
                      
                         Nevertheless, the activation of an integrity mechanism is recommended
                         for external systems making use of the TE accounting data.
                      
                      
                      7. References
                      
                         [1] Bradner, S., "The Internet Standards Process -- Revision 3", BCP
                            9, RFC 2026, October 1996.
                         [2] Jacquenet, C., "An IP Traffic Engineering COPS Client-type",
                            draft jacquenet-ip-te-cops-04.txt, Work in Progress, December
                            2002.
                         [3] Rawlins, D., Kulkarni, A., Bokaemper, M., Ho Chan, K., "Framework
                            of COPS-PR Policy Usage Feedback", draft-ietf-rap-feedback-frwk-
                            03.txt, October 2002.
                         [4] Bradner, S., "Key words for use in RFCs to Indicate Requirement
                            Levels", BCP 14, RFC 2119, March 1997
                         [5] Goderis, D., T'Joens, Y., Jacquenet, C., Memenios, G., Pavlou,
                            G., Egan, R., Griffin, D., Georgatsos, P., Georgiadis,
                            L.,"Specification of a Service Level Specification (SLS)
                            Template", draft-tequila-sls-02.txt, Work in Progress, February
                            2002.
                         [6] Boyle, J., Cohen, R., Durham, D., Herzog, S., Raja, R., Sastry,
                            A., "The COPS (Common Open Policy Service) Protocol", RFC 2748,
                            January 2000.
                      
                      
                      
                      
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                      Internet Draft     IP TE PIB for Accounting purposes      December 2002
                      
                      
                      
                         [7] Boucadair, M., Jacquenet, C., "An IP Traffic Engineering Policy
                            Information Base", draft-jacquenet-ip-te-pib-03.txt, Work in
                            Progress, December 2002.
                         [8] Boucadair, M., Jacquenet, C., "IGP Policy Information Base for TE
                            purposes", Work in Progress, December 2002.
                         [9] Boucadair, M., Jacquenet, C., "BGP Policy Information Base for
                            QoS purposes", Work in Progress, December 2002.
                         [10] Rawlins, D., Kulkarni, A., Bokaemper, M., Ho Chan, K. "
                            Framework Policy Information Base for Usage Feedback ", draft-
                            ietf-rap-feedback-fr-pib-04.txt, November 2002.
                         [11] Jacquenet, C., "Providing Quality of Service Indication by   the
                            BGP-4 Protocol: the QOS_NLRI Attribute", draft-jacquenet-qos-nrli-
                            04.txt, Work in Progress, March 2002.
                         [12] Ho Chan, K., Durham, D., Gai, S., Herzog, S., McLoghrie, K.,
                            Reichmeyer, F., Seligson, J., Smith, A., Yavatkar, R., "COPS Usage
                            for Policy Provisioning (COPS-PR)", RFC 3084, March 2001.
                      
                      8. Acknowledgments
                      
                         The author would like to thank M. Jacquenet for his remarks and
                         suggestions.
                      
                      9. Author's Addresses
                      
                         Mohamed Boucadair
                         France Telecom R & D
                         DMI/SIR
                         42, rue des Coutures
                         BP 6243
                         14066 Caen Cedex 4
                         France
                         Phone: +33 2 31 75 92 31
                         Email: mohamed.boucadair@rd.francetelecom.com
                      
                      
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