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Versions: 00 01 02 03 04 05 06 rfc3571                                  
    Internet Draft                                        Diana Rawlins
    Expiration: May 2002                                       WorldCom
    File: draft-ietf-rap-feedback-fr-pib-01.txt           Amol Kulkarni
                                                                  Intel
                                                           Kwok Ho Chan
                                                        Nortel Networks
                                                       Martin Bokaemper
                                                     Unisphere Networks
                                                            Dinesh Dutt
                                                                  Cisco

       Framework of COPS-PR Policy Information Base for Policy Usage
                                 Feedback

                     Last Updated November 20, 2001

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.

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].

Abstract
     Currently there are no policy classes defined for the PEP to convey
     provisioned policy usage feedback to the PDP. The purpose of this
     document is to define the policy usage feedback framework PIB that
     specifies the policy classes common for COPS feedback reports. The
     basic operation and objects for reporting usage information are
     defined in [COPS]. A specific clientSI feedback object named REPORT
     is defined in [COPS-PR]. A framework for approaching solicited and
     periodic usage feedback is described in [COPS-FEED-FRWK.]This
     document defines the policy classes for a feedback framework Policy
     information base (PIB).

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Table of Contents

   1 Introduction.....................................................3
   2 General Concepts.................................................3
   2.1 Selection, Usage and Linkage Policies..........................3
   2.2 Normal Operations..............................................4
   2.2.1 Connection Establishment and Initial Configuration Request...4
   2.2.2 Unsolicited Reports - Periodic Reporting.....................5
   2.2.3 Unsolicited Reports - Reporting Conditions...................5
   2.2.4 Solicited Reports............................................5
   2.2.5 Resuming and Suspending Periodic Feedback Reporting..........6
   2.2.6 Failover.....................................................6
   3 Summary of the Feedback Framework Policy Information Base........6
   3.1 SPPI ACCESS clause report-only.................................6
   3.2 Feedback Groups and PRCs.......................................7
   3.2.1 Feedback Action Table........................................7
   3.2.2 Feedback List Table..........................................8
   3.2.3 The Feedback Selection Usage Combination Capability Table....8
   3.2.4 The Feedback Report Linkage Table............................8
   3.2.7 The Feedback Traffic Statistics Threshold Table..............9
   3.2.8 The SetWatchPoint Table......................................9
   3.2.9 Feedback DPE Selection Criteria Table........................9
   3.2.10 Feedback DPE Selection Query Table..........................9
   4 The Feedback Framework PIB Module...............................10
   5 Security Considerations.........................................25
   6 Acknowledgements................................................25
   7 Authors' Addresses..............................................26
   8 References......................................................26
























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1 Introduction

   The Framework of COPS-PR Usage Feedback describes the overall
   approach to policy usage monitoring and reporting. This document
   defines the specific Policy Information Base (PIB) framework for
   policy usage feedback. The policy classes for monitoring and
   reporting policy usage feedback as well as policy classes for
   controlling reporting intervals, suspension, resumption and
   solicitation are also defined.

2 General Concepts

2.1 Selection, Usage and Linkage Policies

   There are three basic types of policy used to define what the PEP is
   to monitor, record and report. These are the selection criteria
   policy, the usage policy and the feedback report linkage policy.

   The selection criteria policy is installed by the PDP. It defines the
   conditions used by the PEP to monitor and record a usage policy.
   Generally, the selection criterion is an existing PRC such as the
   qosClfrElementEntry. This PRC is useful for specifying conditions on
   which to base usage - i.e. count the number of packets received for
   this classified flow.

   The usage policy defines what attributes are monitored and recorded
   by the PEP. These policies have an ACCESS clause of Report.
   Generally, the usage policies specify counts related to a specific
   action such as a packet being dropped. The feedback framework PIB
   defines one usage policy class, frwkFeedbackTrafficUsage. It counts
   packets and bytes. Usage PRCs may be generic, collecting basic
   statistics, or they may be specific to a particular usage. The PDP
   decides which PRC(s) best suit(s) its requirements. The PEP may
   support only one usage PRC, in which case all statistics are gathered
   using instances of that PRC. Alternatively, the PEP may support
   multiple usage PRCs. The PDP then decides which PRC to associate with
   a particular selection criterion.


   A usage policy and selection policy are tightly associated with one
   another. A third policy is used to associate, or link, the selection
   and usage policies. The frwkFeedbackLinkTable performs this linking
   of the selection and usage policies. The feedback report linkage
   permits the same selection criteria instance to be re-used for
   various usage policies. The feedback type report linkage references
   the selection criteria instance as well as defines the policy class
   of the usage PRC. As noted above, the selection criteria policy may
   be used for enforcement policies as well as usage policies. This is
   the case with qosClfrElementEntry.




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       -----------------     ------------------      -----------------
      |                 |   |                  |    |                 |
      | Select Criteria |   |Linkage Instance  |    |Usage Instance   |
      |                 |   |-instance ID      |    |- instance ID    |
      | -instance ID    |<--|-PRID of selection|--->|- PRID of Linkage|
      | -conditions...  |   |-PRC of usage     |    |- counts...      |
      |                 |   |                  |    |                 |
       -----------------     ------------------      -----------------

                               Figure 1

   Figure 1 illustrates the relationship between a selection criteria,
   linkage and usage policies.

   The PDP is not aware of the instance identifier of the usage policy
   when installing the selection criteria and feedback report linkage
   policies. The usage policy is instantiated on the PEP by the
   installation of a feedback report linkage and the PEP designates the
   instance identifier. The usage policy class always contains an
   attribute of type Prid which contains the value of the associated
   feedback report linkage PRID [COPS-PR] installed by the PDP. Note
   that the Prid type is a textual convention for an object identifier
   that is the PRC of the table used for the feedback report linkage
   (was - selection criteria) and where the last sub-identifier is an
   instance ID of the feedback report linkage.


2.2 Normal Operations

2.2.1 Connection Establishment and Initial Configuration Request

   The Accounting Timer object in the Connection Accept message contains
   the minimum number of seconds between reporting intervals as
   described in [COPS] and [COPS-FEEDBACK-FRWK.] This is used as the
   basic unit of measurement in defining intervals for specific usage
   policies with the frwkFeedbackLinkInterval attribute.

   The PEP notifies the PDP of the selection criteria policy classes and
   usage policy classes it supports during the initial request for
   configuration data using the frwkPRCSupportTable entries [FR-PIB].
   The PEP also indicates whether it supports the frwkFeedbackLinkTable
   as well.

   The PDP responds to the initial request for configuration with a
   DECISION that installs policies. The PDP may also specify maximum
   reporting intervals associated with each of the usage policies. This
   is done with the frwkFeedbackLinkInterval attribute in the
   frwkFeedbackLinkTable instance. It may also specify reporting
   thresholds by including an instance of a threshold class (e.g.
   frwkFeedbackTrafficThresholdTable) in the decision. The PEP monitors
   and records the usage per the conditions defined by its associated
   selection criteria policy. Periodically the PEP reports the usage
   with an feedback type REPORT or provides a REPORT when solicited by

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   the PDP. The PDP solicits usage feedback with the
   frwkFeedbackActionIndicator attribute of the frwkFeedbackActionTable.


2.2.2 Unsolicited Reports - Periodic Reporting

   Reporting may be periodic in nature and unsolicited. The intervals
   at which the unsolicited reports are provided by the PEP are defined
   in the specific Linkage policies. The defined intervals are based on
   the number of seconds specified by the PDP in the ACCT Timer value.
   The PDP may specify that the periodic unsolicited report is to only
   occur if a threshold is reached and/or if the usage value has
   changed from the previous reporting interval.

   There are cases when the PEP must supply unsolicited feedback
   reports that may not fall on an interval boundary. The PEP MUST
   provide an unsolicited REPORT containing all defined usages
   instances just prior to the PEP issuing a Delete Request State and
   just prior to the PEP de-activating a PIB instance context.

2.2.3 Unsolicited Reports - Reporting Conditions

   Periodic unsolicited reports for individual linkage objects can be
   suppressed by specifying additional conditions. Supported conditions
   are:
   ChangeOnly
        If this flag is set in the frwkFeedbackUsageLinkFlags field,
        the associated usage instance is only included in a periodic
        unsolicited report if its value changed since the last
        unsolicited report.

   Threshold
        If this flag is set in the frwkFeedbackUsageLinkFlags field,
        the associated usage instance is only included in a periodic
        unsolicited report, if the threshold condition referenced in
        the frwkLinkThreshold field evaluates successfully for the
        associated usage instance.

   Both conditions can be combined in one frwkFeedbackLinkUsage object.
   In this case both conditions need to succeed for the usage instance
   to be reported.

   Unsolicited reports triggered by a Delete Request State or the
   deactivation of a PIB instance are not subject to these conditions -
   all usage objects must be included in these cases.


2.2.4 Solicited Reports

   The PDP may solicit policy usage feedback by issuing an unsolicited
   Decision containing the frwkFeedbackActionIndicator set to SOLICIT
   USAGE REPORT NOW. The PEP is to provide a solicited REPORT feedback
   containing usage feedback. The PEP shall continue to provide

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   periodic feedback as well at the specified intervals established at
   client connection acceptance.
   The reporting conditions (ChangeOnly and Threshold) do not affect
   solicited reports - all requested usage instances must be included.

2.2.5 Resuming and Suspending Periodic Feedback Reporting

   The PDP may suspend usage monitoring and tracking at the PEP with the
   frwkFeedbackActionIndicator set to SUSPEND USAGE MONITORING AND
   REPORTS. The PEP must stop tracking usage information and must not
   issue any feedback reports. The PDP may only suspend feedback
   reporting by setting the ActionIndicator to SUSPEND REPORTS ONLY. The
   PEP must cease sending unsolicited reports but is to continue
   monitoring and tracking usage. The PDP may resume the sending of
   feedback reports and may resume usage monitoring by setting the
   ActionIndicator to RESUME USAGE AND REPORTING.

   The PDP may suspend or resume for all usage instances or the PDP may
   specify one or more instances that are to be suspended or resumed.
   The frwkFeedbackActionList contains a tag identifier that references
   a list of one or more frwkFeedbackActionListTable entries.

   The PDP may halt usage monitoring, tracking and reporting of usage
   policies by removing the associated Linkage entry.


 2.2.6 Failover

   In the event the connection is lost between the PEP and PDP, the PEP
   continues to track usage information as long as it continues to
   operate with the installed policy. When the locally installed policy
   at the PEP expires, the usage policy data also expires.

   Upon successful reconnection where the PEP is still caching policy,
   the PDP indicates to the PEP that the PEP may resume sending of the
   feedback type report messages. The PDP does this deterministically.
   It issues an unsolicited decision containing the
   frwkFeedbackResumeIndicator set to resume reporting. The PEP should
   resume reporting at the next appropriate feedback interval
   established upon the acceptance of the re-connection.  The PDP is
   aware of the request state Handle(s) and the supported PRCs either
   through the state synchronization mechanism or because the PDP
   considers itself synchronized with the PEP upon reconnection.



3 Summary of the Feedback Framework Policy Information Base

3.1 SPPI ACCESS clause report-only

   The selection criteria and linkage policy classes follow the
   definitions specified by [SPPI]. This structure specifies well-
   defined policy classes and their instances residing in a common,

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   virtual repository [FR-PIB]. The additional PIB-ACCESS clause
   attribute of "report-only" denotes the usage policy class reported by
   the PEP.


3.2 Feedback Groups and PRCs

   It is useful to define reporting intervals, and suspend, resume, and
   solicit characteristics as well as the common usage and selection
   criteria polices. These policy classes are common to account type
   reporting for various technologies and apply to ALL SUBJECT-
   CATEGORIES. The policy classes are divided into three new groups,
   namely, The Feedback Report Group, The Feedback Usage Group and The
   Feedback Selection Group.

   The policy classes in the Feedback Report Group are:

      1) Feedback Action Table
      2) Feedback Action List Table
      3) Feedback Selection Usage Combination Capability Table
      4) Feedback Linkage Table

   The policy classes in the Feedback Usage Group are:
      1) Feedback Traffic Statistics Usage Table
      2) Feedback Interface Traffic Statistics Usage Table
      3) Feedback Traffic Statistics Threshold Table

   The policy classes in the Feedback Selection Group are:
      1) SetWatchPoint Table
      2) Feedback DPE Selection Criteria Table
      3) Feedback DPE Selection Query Table
      4) Feedback DPE Interface Usage Table


3.2.1 Feedback Action Table

   The Feedback Action Table contains the attributes that specify
   action that the PEP is to take regarding policy usage, monitoring
   and tracking. The PDP may suspend usage monitoring and periodic
   reporting, suspend periodic reporting only, resume usage and
   periodic reporting or solicit immediate reporting. The action may
   affect all feedback policies or be associated with one or more
   policy instances.

   The Feedback Action Indicator defines the action. The Feedback
   Specific PRI indicates whether the action applies to all of the
   usage policies or to a list. The Feedback List ID is the identifier
   of the list of Linkage policy instances to which the action is to be
   applied.

   The PDP can solicit the PEP for immediate usage feedback. The PEP
   shall respond with a solicited report containing the usage feedback.


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   The PDP can direct the resumption of usage monitoring and reporting
   per the defined intervals. For example, the PEP may have re-
   connected to a PDP and has cached usage policies. The PDP indicates
   to the PEP to resume usage tracking and monitoring and to send all
   the cached usage policy.  The PEP shall respond at the next
   appropriate interval with an unsolicited report containing the usage
   feedback.

   The PDP can suspend the monitoring of usage policy. The PEP
   maintains the current usage that has been monitored but discontinues
   any further monitoring until the PDP directs the PEP to resume
   monitoring in a subsequent Decision.

   The PDP can also suspend just the reporting of usage, but not
   interrupt the monitoring and tracking of usage. The PEP shall
   discontinue sending Report messages with usage feedback until the
   PDP directs the PEP to resume. The PEP then begins reporting the
   usage feedback at the next interval.


3.2.2 Feedback List Table

   This table contains a list of PRIDs of the linkage table for which
   the PDP wants feedback reports. The value is referenced by an
   attribute in the Feedback Resume Table. There may be one or more
   instances associated with a specific list identifier defined by the
   Feedback Action List ID.

3.2.3 The Feedback Selection Usage Combination Capability Table

   This table defines the valid selection criteria PRC, and usage PRC
   and threshold PRC combinations supported.

3.2.4 The Feedback Report Linkage Table

   This table links the selection criteria instance with the usage
   instance. It specifies the PRID of the selection criteria and the PRC
   of the usage instance. This table permits the reuse of a selection
   criteria instance for multiple usage policies.

   The linkage table also permits the definition of a maximum reporting
   interval to use when issuing the feedback type reports for the usage
   instance. This interval is defined in units of the Accounting Timer
   Interval specified in the client accept message. A value of 0 in this
   attribute indicates that the usage policy must be solicited.

3.2.5 The Feedback Traffic Statistics Usage Table

   This table describes the packet counts, byte counts, last timestamp
   when a packet was received and the PRID of the associated Feedback
   Report Linkage instance. The count and timestamp information is
   monitored and recorded by the PEP and supplied to the PDP with the
   feedback type report message within the maximum interval specified.

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3.2.6 The Feedback Interface Traffic Statistics Usage Table

   This table is similar to the table described above, except that it
   includes an additional reference to an interface. This table should
   be used with a selection criteria that matches an element that is
   assigned to multiple interfaces. The interface field can be used to
   associate the instances of this table with the specific element’s
   assignment.

3.2.7 The Feedback Traffic Statistics Threshold Table

   This table is used to provide threshold values for the attributes
   described in the above usage tables.

3.2.8 The SetWatchPoint Table

   This table defines a selection criteria policy that identifies the
   enforcement policy processing point at which the associated usage
   policy is to be monitored. This is useful in the data path models
   where re-use of the enforcement policy occurs and is implemented in
   a linked fashion. For example, it may be useful to monitor and
   feedback the packet usage at a specific dropper enforcement policy
   in the DiffServ PIB.

3.2.9 Feedback DPE Selection Criteria Table

   This table is an example of a Selection Criteria PRC that references
   a specific instance of a shared object.
   It is based on the popular model of a data path consisting of
   multiple linked data path elements (DPEs).
   A single data path can be assigned to multiple interfaces by a
   single entry in the Data Path Table [DIFFSERV-PIB], elements within
   this data path however can collect usage information for each
   assignment individually.

   Instances of this class allow the PDP to select a specific
   assignment of a data path element to be selected for usage
   reporting. This is achieved by the combination of references to a
   Data Path Entry, a Data Path Element and the Interface.
   It is expected to be used in combination with the
   FrwkFeedbackTrafficUsage PRC.

3.2.10 Feedback DPE Selection Query Table

   This Selection Criteria PRC is similar to the DPE Selection Criteria
   Table, however it is missing the reference to a specific interface.
   This means an instance of this class can select multiple assignments
   of a data path element for usage collection. Each selected
   assignment of the DPE creates its own usage instance.
   This selection criteria PRC is expected to be used together with a
   usage PRC that includes the a reference to an interface, so the
   results can be assigned uniquely.

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3.2.11 Feedback DPE Interface Usage Table

   The DPE Interface Usage class is an extension of the generic Traffic
   Usage class that also includes a reference to a frwkIfRoleComboEntry
   that represents the interface, this instance is associated with.



4 The Feedback Framework PIB Module


   FEEDBACK-FRAMEWORK-PIB PIB-DEFINITIONS ::= BEGIN

      IMPORTS
          ExtUTCTime, Unsigned32, Unsigned64,
          Integer32, MODULE-IDENTITY, OBJECT-TYPE
                  FROM COPS-PR-SPPI
          TruthValue, TEXTUAL-CONVENTION
                  FROM SNMPv2-TC
          PolicyInstanceId, PolicyReferenceId
                  FROM COPS-PR-SPPI-TC;
          RoleCombination
                  FROM FRAMEWORK-ROLE-PIB;
          Counter64
                  FROM SNMPv2-SMI;

      feedbackPolFrameworkPib  MODULE-IDENTITY
          SUBJECT-CATEGORIES  { all }
          LAST-UPDATED "200011171000Z"
          ORGANIZATION "IETF RAP WG"
          CONTACT-INFO "
                        Diana Rawlins
                        WorldCom
                        901 International Parkway
                        Richardson, TX 75081
                        Phone: 972 729 1044
                        Email: diana.rawlins@wcom.com

                       Amol Kulkarni
                       JF3-206
                       2111 NE 25th Ave
                       Hillsboro, Oregon 97124
                       Phone: 503-712-1168
                       Email: amol.kulkarni@intel.com

                       Kwok Ho Chan
                       Nortel Networks, Inc.
                       600 Technology Park Drive
                       Billerica, MA 01821 USA
                       Phone: 978-288-8175
                       Email: khchan@nortelnetworks.com


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                       Martin Bokaemper
                       Unisphere Networks
                       700 Silver Seven Road
                       Kanata, ON, K2V 1C3, Canada
                       Phone: 613-591-2735
                       Email: mbokaemper@unispherenetworks.com"


      DESCRIPTION
              "The PIB module containing the base set of policy rule
              classes that are required for support of all policy
              usage  monitoring, tracking and reporting policies"

            ::= { tbd }
   --
   -- The feedback report group
   --

   frwkFeedbackGroupClasses
                  OBJECT IDENTIFIER ::= { feedbackPolFrameworkPib  1 }

   --
   --  Feedback Action Table
   --

   frwkFeedbackActionTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF FrwkFeedbackActionEntry
        PIB-ACCESS      install
        STATUS          current
        DESCRIPTION
                 "This class contains a single PRI that indicates
                 that the PEP is to resume the sending of
                 feedback type reports."

           ::= { frwkFeedbackGroupClasses  1}

   frwkFeedbackActionEntry OBJECT-TYPE
        SYNTAX  FrwkFeedbackActionEntry
        STATUS  current
        DESCRIPTION
                   "An instance of this class can indicates a action
                    the PEP is to take regarding the usage policies."
        PIB-INDEX { frwkFeedbackActionId}

           ::= { frwkFeedbackActionTable 1}

   FrwkFeedbackActionEntry ::= SEQUENCE {
           frwkFeedbackActionId                 InstanceId,
           frwkFeedbackActionIndicator          INTEGER,
           frwkFeedbackActionSpecificPri        INTEGER,
           frwkFeedbackActionList               TagReference
        }


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   frwkFeedbackActionId  OBJECT-TYPE
        SYNTAX        InstanceID
        STATUS        current
        DESCRIPTION
           " An arbitrary integer index that uniquely identifies an
            instance of the frwkFeedbackActionTable class."

        ::= { frwkFeedbackActionEntry 1}

   frwkFeedbackActionIndicator OBJECT-TYPE
        SYNTAX  INTEGER {
                   SUSPEND USAGE MONITORING_AND_REPORTS(0)
                   SUSPEND_REPORTS_ONLY(1)
                   RESUME_USAGE AND REPORTING(2)
                   SOLICIT USAGE REPORT NOW(3)
        }
        STATUS  current
        DESCRIPTION
                  "The value indicates if the PEP is to send cached
                   usage policies via feedback type report messages.
                   The enumeration values are:
                   (0)  SUSPEND USAGE MONITORING_AND_REPORTS
                   (1)  SUSPEND_REPORTS_ONLY
                   (2)  RESUME_USAGE AND REPORTING
                   (3)  SOLICIT USAGE REPORT NOW "

          ::= { frwkFeedbackActionEntry 2 }

   frwkFeedbackActionSpecificPri OBJECT-TYPE
           SYNTAX        TruthValue
           STATUS        current
           DESCRIPTION
                   "A value of 0 indicates that the
                   frwkFeedbackActionListId attribute should be
                   ignored, and the action applied to all policies. A
                  value of 1 indicates that the action entry has a
                  specific list of policies to which it is to be
                  applied."
           ::= { frwkFeedbackActionEntry 3}

   frwkFeedbackActionList OBJECT-TYPE
           SYNTAX        TagReference
           STATUS        current
           DESCRIPTION
                     "Identifies a list of
                      frwkFeedbackActionListTable instances
                      associated with the action described by
                      this instance"
           ::= { frwkFeedbackActionEntry 4}

   --
   --  Feedback Action List Table
   --

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   frwkFeedbackActionListTable OBJECT-TYPE
           SYNTAX          SEQUENCE OF FrwkFeedbackActionListEntry
           PIB-ACCESS      install
           STATUS          current
           DESCRIPTION
                         "This class contains the PRIDs of the
                         linkage instance which are to be impacted by
                         the frwkFeedbackActionIndicator for this
                         list."
           ::= { frwkFeedbackGroupClasses  2}

   frwkFeedbackActionListEntry OBJECT-TYPE
           SYNTAX          FrwkFeedbackActionListEntry
           STATUS          current
           DESCRIPTION
                    "This class identifies a set of linkage instances
                     for which the  PDP is suspending, resuming or
                     soliciting usage feedback."

           PIB-INDEX {frwkFeedbackActionListId }
           UNIQUENESS { frwkFeedbackActionListGroup,
                        frwkFeedbackActionListPRID
                      }
           ::= { frwkFeedbackActionListTable 1}

   FrwkFeedbackActionListEntry::= SEQUENCE {
              frwkFeedbackActionListId          InstanceID,
              frwkFeedbackActionListGroup       TagId,
              frwkFeedbackActionListPRID        Prid
        }

   frwkFeedbackActionListId OBJECT-TYPE
           SYNTAX       InstanceId
           STATUS       current
           DESCRIPTION
                     "Arbitrary integer index that uniquely
                     identifies an instance of the class."

           ::= { frwkFeedbackActionListEntry 1 }

   frwkFeedbackActionListListGroup OBJECT-TYPE
           SYNTAX       TagId
           STATUS       current
           DESCRIPTION
                       "Represents the binding between the Action
                      table entry and the Action List table entries"
           ::= { frwkFeedbackActionListEntry 2 }

   frwkFeedbackActionListPRID   OBJECT-TYPE
           SYNTAX       Prid
           STATUS       current
           DESCRIPTION

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                         "The PRID of the linkage instance(s) belonging
                          to the list of instances identified by the
                          list id upon which the suspend, resume or
                          solicit action is directed."

           ::= { frwkFeedbackActionListEntry 3 }

   --
   -- The Feedback Selection Usage Combination Capability Table
   --

   frwkFeedbackSelUsageComboCapsTable OBJECT-TYPE
        SYNTAX           SEQENCE OF FrwkFeedbackSelUsageComboCapsEntry
        PIB-ACCESS       notify
        STATUS           current
        DESCRIPTION
                "This table defines the valid combinations of the
                 selection criteria PRCs, the usage PRCs and the
                threshold PRCs that the PEP supports."
         ::= { frwkFeedbackGroupClasses 3}


   frwkFeedbackSelUsageComboCapsEntry OBJECT-TYPE
        SYNTAX          FrwkFeedbackSelUsageComboCapsEntry
        STATUS          current
        DESCRIPTION
                 "The attributes of this class identify valid
                  combinations of selection criteria, usage and
                  threshold PRCs for feedback supported by the PEP
                  device."
        PIB-INDEX {frwkFeedbackActionLinkId}
        UNIQUENESS { frwkFeedbacSelUsageComboCapId,
                    frwkFeedbackSelUsageComboCapSelection,
                    frwkFeedbackSelUsageComboCapUsage,
                    frwkFeedbackSelUsageComboCapThreshold
                 }
        ::= {frwkFeedbackSelUsageComboTable 1}

   FrwkFeedbackSelUsageComboCapsEntry ::= SEQUENCE {
          frwkFeedbackSelUsageComboCapId         InstanceID,
          frwkFeedbackSelUsageComboCapSelection  OBJECT IDENTIFIER,
          frwkFeedbackSelUsageComboCapUsage      OBJECT IDENTIFIER,
          frwkFeedbackSelUsageComboCapThreshold  OBJECT IDENTIFIER
   }

   frwkFeedbackSelUsageComboCapId OBJECT-TYPE
        SYNTAX        InstanceID
        STATUS        current
        DESCRIPTION
           " An arbitrary integer index that uniquely identifies an
             instance of the frwkFeedbackSelUsageComboCapsEntry
             class."
        ::= { frwkFeedbackSelUsageComboCapsEntry 1}

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   frwkFeedbackSelUsageComboCapSelection OBJECT-TYPE
        SYNTAX        OBJECT IDENTIFIER
        STATUS        current
        DESCRIPTION
           "The PRC of the selection class that is supported by
            the device in the combination defined by this instance."
        ::= { frwkFeedbackSelUsageComboCapsEntry 2}

   frwkFeedbackSelUsageComboCapUsage OBJECT-TYPE
        SYNTAX        OBJECT IDENTIFIER
        STATUS        current
        DESCRIPTION
           "The PRC of the usage policy class that is supported by
            the device in combination  with the selection PRC and the
            threshold PRC defined in this instance."
        ::= { frwkFeedbackSelUsageComboCapsEntry 3}


   frwkFeedbackSelUsageComboCapThreshold OBJECT-TYPE
           SYNTAX        OBJECT IDENTIFIER
           STATUS        current
           DESCRIPTION
              "The PRC of the threshold class that is supported by
               the device in the combination defined by this instance."
           ::= { frwkFeedbackSelUsageComboCapsEntry 2}

   --
   -- The Feedback Report Linkage Table
   --

   frwkFeedbackLinkTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF FrwkFeedbackLinkEntry
        PIB-ACCESS      Install
        STATUS          current
        DESCRIPTION
                 "This class associates the selection criteria with the
                  usage policy. It also permit the defining of the max
                  interval used for reporting the usage instance."

        ::= { frwkFeedbackGroupClasses  4}

   frwkFeedbackLinkEntry OBJECT-TYPE
        SYNTAX          FrwkFeedbackLinkEntry
        STATUS          current
        DESCRIPTION
                 "This class associates the selection criteria with the
                  usage policy. It also permits the defining of the max
                  interval used for reporting the usage instance."
        PIB-INDEX {frwkFeedbackActionLinkId}
        UNIQUENESS { frwkFeedbackLinkId,
                    frwkFeedbackLinkSel,
                    frwkFeedbackLinkUsage }

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        ::= {frwkFeedbackLinkTable 1}

   FrwkFeedbackLinkEntry ::= SEQUENCE {
          frwkFeedbackLinkId         InstanceID,
          frwkFeedbackLinkSel        Prid,
          frwkFeedbackLinkUsage      OBJECT IDENTIFIER,
          frwkFeedbackLinkInterval   Integer32,
          frwkFeedbackLinkThreshold  Prid,
          frwkFeedbackLinkFlags       BITS
   }

   frwkFeedbackLinkId OBJECT-TYPE
        SYNTAX        InstanceID
        STATUS        current
        DESCRIPTION
           " An arbitrary integer index that uniquely identifies an
             instance of the frwkFeedbackLinkTable class."
        ::= { frwkFeedbackLinkEntry 1}

   frwkFeedbackLinkSel OBJECT-TYPE
        SYNTAX       Prid
        STATUS       current
        DESCRIPTION
            "The PRID of the selection criteria instance that
             defines the conditions to use by the PEP for
             monitoring the usage."

        ::= { frwkFeedbackLinkEntry 2}

   frwkFeedbackLinkUsage OBJECT-TYPE
        SYNTAX      OBJECT IDENTIFIER
        STATUS      current
        DESCRIPTION
             "The PRC of the usage policy class that the PEP uses to
             monitor, record and report."

        ::= { frwkFeedbackLinkEntry 3}

   frwkFeedbackLinkInterval  OBJECT-TYPE
        SYNTAX   Integer32
        STATUS   current
        DESCRIPTION
                "Maximum interval in units of the value of the
                Accounting Timer specified by the PDP in the client
                accept message. A frwkFeedbackLinkInterval of 1 is
                equal to the value of the Accounting Timer. This value
                must be 1 or greater. "

        ::= { frwkFeedbackLinkEntry 4}

   frwkFeedbackLinkThreshold  OBJECT-TYPE
        SYNTAX   Prid
        STATUS   current

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        DESCRIPTION
                "The PRID of the threshold class instance. This
                instance specifies the threshold values for the usage
                policy."
        ::= { frwkFeedbackLinkEntry 5}

  frwkFeedbackLinkFlags  OBJECT-TYPE
        SYNTAX   BITS {
                         periodic(0),
                         threshold(1),
                         changeOnly(2),
                 }
        STATUS   current
        DESCRIPTION
               "This value indicates the reporting basis of the usage
                policy. The feed back may be generated on demand, on a
                periodic basis regardless of a change in value from the
                previous report, on a periodic basis if a change in
                value has occurred, or the usage is reported when an
                identified threshold value in the usage instance has
                been reached.
                If the ‘periodic’ flag is set, the PEP will provide
                unsolicited reports at the rate specified in
                frwkFeedbackLinkInterval.
                If the ‘periodic’ flag is not set, reports will only be
                generated when solicited by the PDP.
                The ‘threshold’ and ‘changeOnly’ flags make the
                periodic reports conditional - these flags only make
                sense in combination with the ‘periodic’ flag."

           ::= { frwkFeedbackLinkEntry 6}


   --
   -- All actual usage classes are in the separate
   -- FrwkFeedbackUsageClasses group
   --

   FrwkFeedbackUsageClasses
       OBJECT IDENTIFIER ::= { feedbackPolFrameworkPib  2 }


   --
   -- The generic traffic (byte & packet count) usage class
   --

   frwkFeedbackTrafficUsageTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF FrwkFeedbackTrafficUsageEntry
        PIB-ACCESS      report-only
        STATUS          current
        DESCRIPTION
                 "This class defines the usage attributes that the PEP
                  is to monitor for plain traffic handling elements

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                  like filters. All packets and the bytes contained in
                  these packets are counted. It also contains the PRID
                  of the linkage instance associating the selection
                  criteria instance with the usage instance."

        ::= { frwkFeedbackUsageClasses  1}

   frwkFeedbackTrafficUsageEntry OBJECT-TYPE
        SYNTAX          FrwkFeedbackTrafficUsageEntry
        STATUS          current
        DESCRIPTION
                 "Defines the attributes the PEP is to monitor,
                  record and report."
        PIB-INDEX {frwkFeedbackTrafficUsageId}
        UNIQUENESS { frwkFeedbackTrafficUsageLinkPRID }

        ::= {frwkFeedbackTrafficUsageTable 1}

   FrwkFeedbackTrafficUsageEntry ::= SEQUENCE {
         FrwkFeedbackTrafficUsageId              InstanceID,
         frwkFeedbackTrafficUsageLinkPRID        Prid,
         frwkFeedbackTrafficUsagePacketCount     Counter64,
         frwkFeedbackTrafficUsageByteCount       Counter64

   }

   frwkFeedbackTrafficUsageId   OBJECT-TYPE
        SYNTAX       InstanceId
        STATUS       current
        DESCRIPTION
                  "Arbitrary integer index that uniquely identifies
                   an instance of the class."
        ::= { frwkFeedbackTrafficUsageEntry 1 }

   frwkFeedbackTrafficUsageLinkPRID  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of the Linkage policy instance used to base
                   this usage policy instance upon."

        ::= { frwkFeedbackTrafficUsageEntry 2 }

   frwkFeedbackTrafficUsagePacketCount OBJECT-TYPE
        SYNTAX       Counter64
        STATUS       current
        DESCRIPTION
                  "The count of packets handled by the associated
                   element during the reporting interval."

        ::= {frwkFeedbackTrafficUsageEntry 3}

   frwkFeedbackTrafficUsageByteCount OBJECT-TYPE

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        SYNTAX       Counter64
        STATUS       current
        DESCRIPTION
                   "The byte count of packets handled by the associated
                    element."
        ::= { frwkFeedbackTrafficUsageEntry 4}



   --
   -- The traffic usage class, qualified for an interface
   --

   frwkFeedbackIfTrafficUsageTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF FrwkFeedbackIfTrafficUsageEntry
        PIB-ACCESS      report-only
        STATUS          current
        DESCRIPTION
                "A usage PRC similar to the basic TrafficUsage class
                that also contains a reference to an interface. This
                class should be used with a selection criteria that
                matches an element that is assigned to multiple
                interfaces. The interface field can be used to
                associate the instances of this class with the specific
                element’s assignment."
        ::= { frwkFeedbackUsageClasses  2 }

   frwkFeedbackIfTrafficUsageEntry OBJECT-TYPE
        SYNTAX          FrwkFeedbackIfTrafficUsageEntry
        STATUS          current
        DESCRIPTION
                 "Defines the attributes the PEP is to monitor,
                  record and report."
        PIB-INDEX {frwkFeedbackIfTrafficUsageId}
        UNIQUENESS { frwkFeedbackIfTrafficUsageLinkPRID,
                     frwkFeedbackIfTrafficUsageInterface }

        ::= {frwkFeedbackTrafficUsageTable 1}

   FrwkFeedbackIfTrafficUsageEntry ::= SEQUENCE {
         FrwkFeedbackIfTrafficUsageId              InstanceID,
         frwkFeedbackIfTrafficUsageLinkPRID        Prid,
         frwkFeedbackIfTrafficUsageInterface       Prid,
         frwkFeedbackIfTrafficUsagePacketCount     Counter64,
         frwkFeedbackIfTrafficUsageByteCount       Counter64

   }

   frwkFeedbackIfTrafficUsageId   OBJECT-TYPE
        SYNTAX       InstanceId
        STATUS       current
        DESCRIPTION
                  "Arbitrary integer index that uniquely identifies

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                   an instance of the class."
        ::= { frwkFeedbackIfTrafficUsageEntry 1 }

   frwkFeedbackIfTrafficUsageLinkPRID  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of the Linkage policy instance used to base
                   this usage policy instance upon."
        ::= { frwkFeedbackIfTrafficUsageEntry 2 }

   frwkFeedbackIfTrafficUsageInterface  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of a frwkIfRoleCombo instance, uniquely
                   identifying a specific interface."
        ::= { frwkFeedbackIfTrafficUsageEntry 3 }

   frwkFeedbackIfTrafficUsagePacketCount OBJECT-TYPE
        SYNTAX       Counter64
        STATUS       current
        DESCRIPTION
                "The count of packets handled by the associated element
                during the reporting interval."
        ::= { frwkFeedbackIfTrafficUsageEntry 4 }

   frwkFeedbackIfTrafficUsageByteCount OBJECT-TYPE
        SYNTAX       Counter64
        STATUS       current
        DESCRIPTION
                   "The byte count of packets
                    handled by the associated element."
        ::= { frwkFeedbackIfTrafficUsageEntry 5 }



   --
   -- The Threshold class that accompanies the above Usage PRCs
   --

   frwkFeedbackTrafficThresholdTable OBJECT-TYPE
           SYNTAX         SEQUENCE OF FrwkFeedbackTrafficThresholdEntry
           PIB-ACCESS     Install
           STATUS         current
           DESCRIPTION
                 "This class defines the threshold attributes
                  corresponding to usage attributes specified in
                  frwkFeedbackTrafficUsageTable,
                  frwkFeedbackIfTrafficUsageTable and other similar
                  usage classes.
                  The usage object is considered to match the threshold
                  condition if the following expression evaluates to

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                  ‘TRUE’:
                  {
                    byteCond = (ByteThreshold != NULL) ?
                            (ByteThreshold > ByteCounter) : FALSE;
                    packetCond (PacketThreshold != NULL) ?
                            (PacketThreshold > PacketCounter) : FALSE;
                    return ( byteCond || packetCond );
                  }"

           ::= { frwkFeedbackUsageClasses  3}

      frwkFeedbackTrafficThresholdEntry OBJECT-TYPE
           SYNTAX          FrwkFeedbackTrafficThresholdEntry
           STATUS          current
           DESCRIPTION
                    "Defines the attributes to hold threshold values."
           PIB-INDEX {frwkFeedbackTrafficThresholdId}

           ::= {frwkFeedbackTrafficThresholdTable 1}

      FrwkFeedbackTrafficThresholdEntry ::= SEQUENCE {
            FrwkFeedbackTrafficThresholdId          InstanceID,
            frwkFeedbackTrafficThresholdPacketThreshold     Integer64,
            frwkFeedbackTrafficThresholdByteThreshold       Integer64
      }

   frwkFeedbackIfTrafficThresholdId   OBJECT-TYPE
           SYNTAX       InstanceId
           STATUS       current
           DESCRIPTION
                     "Arbitrary integer index that uniquely identifies
                      an instance of the class."
           ::= { frwkFeedbackIfTrafficThresholdEntry 1 }

   frwkFeedbackIfTrafficThresholdPacketThreshold   OBJECT-TYPE
           SYNTAX       Integer64
           STATUS       current
           DESCRIPTION
                     "The threshold, in terms of packets, that must be
                      exceeded to trigger a report in the next
                      reporting interval."
           ::= { frwkFeedbackIfTrafficThresholdEntry 2 }

   frwkFeedbackIfTrafficThresholdByteThreshold   OBJECT-TYPE
           SYNTAX       Integer64
           STATUS       current
           DESCRIPTION
                     "The threshold, in terms of bytes, that must be
                      exceeded to trigger a report in the next
                      reporting interval."
           ::= { frwkFeedbackIfTrafficThresholdEntry 3 }



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   --
   -- All Selection classes are in the separate
   -- FrwkFeedbackSelectionClasses group
   --

   FrwkFeedbackSelectionClasses
       OBJECT IDENTIFIER ::= { feedbackPolFrameworkPib  3 }

   --
   -- The Set WatchPoint Table
   --

   frwkFeedbackSetWatchPointTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF FrwkFeedbackSetWatchPointEntry
        PIB-ACCESS      Install
        STATUS          current
        DESCRIPTION
                 "This class defines a selection criteria that
                  identifies a specific processing point to watch
                  for the desired usage. This selection criteria
                  may be useful in PIBs that are designed using a
                  datapath approach where the policies are linked
                  and can be reused within the PIB."

        ::= { frwkFeedbackSelectionClasses  1}

   frwkFeedbackSetWatchPointEntry OBJECT-TYPE
        SYNTAX          FrwkFeedbackSetWatchPointEntry
        STATUS          current
        DESCRIPTION
                 "Defines the attributes the of the selection
                  criteria identifying a specific policy
                  where to monitor the associated usage."
        PIB-INDEX { frwkFeedbackSetWatchPointId }


        ::= {frwkFeedbackSetWatchPointTable 1}

   FrwkFeedbackSetWatchPointEntry ::= SEQUENCE {
         frwkFeedbackSetWatchPointId                  InstanceID,
         frwkFeedbackSetWatchPointPolicyPRID          Prid,

   }

   frwkFeedbackSetWatchPointId   OBJECT-TYPE
        SYNTAX       InstanceId
        STATUS       current
        DESCRIPTION
                  "Arbitrary integer index that uniquely identifies
                   an instance of the class."
        ::= { frwkFeedbackSetWatchPointEntry 1 }


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   frwkFeedbackSetWatchPointPolicyPRID  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of the enforcement policy instance where
                   the associated usage is to be monitored."

        ::= { frwkFeedbackSetWatchPointEntry 2 }


    --
    -- DPE Selection Class
    --

    frwkFeedbackDPESelectionTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF frwkFeedbackDPESelectionEntry
        PIB-ACCESS      Install
        STATUS          current
        DESCRIPTION
                "This class defines a selection criteria that
                identifies a specific data path element to collect
                usage information"

        ::= { frwkFeedbackSelectionClasses  2}

    frwkFeedbackDPESelectionEntry OBJECT-TYPE
        SYNTAX          frwkFeedbackDPESelecyionEntry
        STATUS          current
        DESCRIPTION
                 "Defines the attributes the of the selection
                  criteria identifying a specific policy
                  where to monitor the associated usage."
        PIB-INDEX { frwkFeedbackDPESelectionId }
        UNIQUENESS { frwkFeedbackDPESelectionDataPathElement,
                     frwkFeedbackDPESelectionInterface,
                     frwkFeedbackDPESelectionIfDirection }

        ::= {frwkFeedbackDPESelectionTable 1}

   frwkFeedbackDPESelectionEntry ::= SEQUENCE {
                     frwkFeedbackDPESelectionId             InstanceId,
                     frwkFeedbackDPESelectionDataPathElement      Prid,
                     frwkFeedbackDPESelectionInterface            Prid,
                     frwkFeedbackDPESelectionIfDirection   IfDirection
   }

   frwkFeedbackDPESelectionId   OBJECT-TYPE
        SYNTAX       InstanceId
        STATUS       current
        DESCRIPTION
                  "Arbitrary integer index that uniquely identifies
                   an instance of the class."
        ::= { frwkFeedbackDPESelectionEntry 1 }

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   frwkFeedbackDPESelectionDataPathElement  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of the element in the data path that we
                   want to collect usage information from. This element
                   must be part of the data path assigned to the
                   interface/direction combination referenced in this
                   object."
        ::= { frwkFeedbackDPESelectionEntry 2 }

   frwkFeedbackDPESelectionInterface  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of a frwkIfRoleCombo instance, uniquely
                   identifying a specific interface"
        ::= { frwkFeedbackDPESelectionEntry 3 }

   frwkFeedbackDPESelectionIfDirection  OBJECT-TYPE
        SYNTAX      IfDirection
        STATUS      current
        DESCRIPTION
                  "The direction (ingress/egress) that to which the DPE
                   is attached that we want to match."
        ::= { frwkFeedbackDPESelectionEntry 4 }


    --
    -- DPE Selection Query Class
    --

    frwkFeedbackDPESelectionQueryTable OBJECT-TYPE
        SYNTAX          SEQUENCE OF frwkFeedbackDPESelectionQueryEntry
        PIB-ACCESS      Install
        STATUS          current
        DESCRIPTION
                "This class defines a selection criteria that
                identifies a set of assignments of a data path element
                based on an entry in the Data Path Table
                Each matched assignment will collect and report usage
                independently, so this selection criteria should be
                combined with a Usage PRC that includes an interface
                reference."

        ::= { frwkFeedbackSelectionClasses  3}

    frwkFeedbackDPESelectionQueryEntry OBJECT-TYPE
        SYNTAX          frwkFeedbackDPESelectionQueryEntry
        STATUS          current
        DESCRIPTION

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                 "Defines the attributes the of the selection
                  criteria identifying a specific policy
                  where to monitor the associated usage."
        PIB-INDEX { frwkFeedbackDPESelectionQueryId }
        UNIQUENESS { frwkFeedbackDPESelectionQueryDataPath,
                     FrwkFeedbackDPESelectionQueryDataPathElement }

        ::= {frwkFeedbackDPESelectionQueryTable 1}

   frwkFeedbackDPESelectionQueryEntry ::= SEQUENCE {
                     frwkFeedbackDPESelectionQueryId        InstanceId,
                     frwkFeedbackDPESelectionQueryDataPath        Prid,
                     frwkFeedbackDPESelectionQueryDataPathElement Prid
   }

   frwkFeedbackDPESelectionQueryId   OBJECT-TYPE
        SYNTAX       InstanceId
        STATUS       current
        DESCRIPTION
                  "Arbitrary integer index that uniquely identifies
                   an instance of the class."
        ::= { frwkFeedbackDPESelectionQueryEntry 1 }

   frwkFeedbackDPESelectionQueryDataPath  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of a Data Path instance, identifying a
                   group of data path assignments."
        ::= { frwkFeedbackDPESelectionQueryEntry 2 }

   frwkFeedbackDPESelectionQueryDataPathElement  OBJECT-TYPE
        SYNTAX      Prid
        STATUS      current
        DESCRIPTION
                  "The PRID of the element in the data path that we
                   want to collect usage information from. This element
                   must be part of the data path referenced from the
                   frwkFeedbackDPESelectionQueryDataPath field."
        ::= { frwkFeedbackDPESelectionQueryEntry 3 }

   END

5 Security Considerations

     The feedback information is sensitive and requires that authorized
     messaging occur between the PEP and the PDP. This protection can
     be accomplished with IPSEC between the PEP and the PDP or using
     the security mechanisms described in the base COPS protocol.

6 Acknowledgements



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     The authors would like to thank Dave Durham and Russell Fenger of
     Intel and John K. Gallant of WorldCom for their contribution to
     this document.

7 Authors' Addresses

      Diana Rawlins
      WorldCom
      901 International Parkway
      Richardson, Texas 75081
      Phone: 972-729-1044
      Email: Diana.Rawlins@wcom.com

      Amol Kulkarni
      JF3-206
      2111 NE 25th Ave
      Hillsboro, Oregon 97124
      Phone: 503-712-1168
      Email: amol.kulkarni@intel.com

      Kwok Ho Chan
      Nortel Networks, Inc.
      600 Technology Park Drive
      Billerica, MA 01821 USA
      Phone: 978-288-8175
      Email: khchan@nortelnetworks.com

      Martin Bokaemper
      Unisphere Networks
      700 Silver Seven Road
      Kanata, ON, K2V 1C3, Canada
      Phone: 613-591-2735
      Email: mbokaemper@unispherenetworks.com

      Dinesh G Dutt
      Cisco Systems, Inc.
      170 Tasman Dr.
      San Jose, CA 95134-1706
      Phone: 408-527-0955
      Email: ddutt@cisco.com


8 References


     [FEEDBACKfWK] Rawlins, D., Kulkarni, A., "Framework of COPS-PR
     Policy Usage Feedback", draft-ietf-rap-feedback-frwk-01.txt,
     November 2001.

     [COPS] Boyle, J., Cohen, R., Durham, D., Herzog, S., Rajan, R.,
     and A. Sastry, "The COPS (Common Open Policy Service) Protocol"
     RFC 2748, January 2000.


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     [3084] K. Chan, D. Durham, S. Gai, S. Herzog, K. McCloghrie, F.
     Reichmeyer, J. Seligson, A. Smith, R. Yavatkar, "COPS Usage for
     Policy Provisioning," RFC 3084, May 2001.

     [SPPI] K. McCloghrie, et.al., "Structure of Policy Provisioning
     Information," RFC 3159, August 2001.

     [DIFFSERV-PIB] Fine, M., McCloghrie, K., Seligson, J., Chan, K.,
     Hahn, S., Bell, C., Smith, A. and Reichmeyer, A. "Differentiated
     Services Quality of Service Policy Information Base", draft-ietf-
     diffserv-pib-05.txt, November 2001

     [FR-PIB] M. Fine, K. McCloghrie, J. Seligson, K. Chan, S. Hahn, A.
     Smith, F. Reichmeyer "Framework Policy Information Base", draft-
     ietf-rap-frameworkpib-06.txt, November 2001







































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