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Network Working Group                                         E. Stephan

Internet Draft                                        France Telecom R&D

Document: draft-ietf-ippm-metrics-registry-01.txt          June 24, 2002





                         IPPM metrics registry

Status of this Memo

   This document is an Internet-Draft and is in full conformance with
   all provisions of Section 10 of RFC2026 [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 memo defines a registry of the IPPM working group metrics. It
   provides an OBJECT IDENTIFIER to each metric currently standardized
   by the IPPM WG. It defines the rules for the identification of the
   metrics standardized in the future.

Table of Contents

   1.      Introduction................................................2
   2.      The IPPM Framework..........................................2
   3.      Overview....................................................2
   4.      IPPM metrics Registry framework.............................2
   4.1.    Metrics registry format.....................................3
   4.2.    Metrics specified in a RFC..................................3
   4.3.    Metrics specified in a WG draft.............................4
   4.4.    Metrics specified in other documents........................5
   5.      Initial IPPM registry.......................................5
   6.      References.................................................12
   7.      Author's Addresses.........................................12




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1. Introduction

   This memo defines a registry of the IPPM working group metrics. It
   provides an OBJECT IDENTIFIER to each metric currently standardized
   by the IPPM WG. It defines the rules for the identification of the
   metrics standardized in the future.

2. The IPPM Framework

   The IPPM Framework consists in four major components:

        + A general framework for defining performance metrics,
        described  in the Framework for IP Performance Metrics, RFC
        2330;

        + A set of standardized metrics, which conform to this
        framework. The IPPM Metrics for Measuring Connectivity, RFC 2678
        [2]. The One-way Delay Metric for IPPM, RFC 2679 [3]. The One-
        way Packet Loss Metric for IPPM, RFC 2680 [4]. The Round-trip
        Delay Metric for IPPM, RFC 2681 [5];

        + Emerging metrics which are being specified in respect of this
        framework;

        + The IPPM-REPORTING-MIB for reporting the results of the
        measures and for interfacing heterogeneous measurement systems
        with management entities.


3. Overview

   This memo defines a registry of the current metrics and a framework
   for the integration of the future metrics for the following reasons:

        + to permit metrics to be clearly referenced by MIBs or other
        data models;

        + Metrics identifiers are needed to allow measurement
        interoperability;

        + Specification of new metrics is a continuous process, special
        care must be taken for the integration of the future
        standardized metrics.

4. IPPM metrics Registry framework

MIBs need OBJECT INDENTIFIER to refer precisely to the standardized
metrics. The registry associates an OBJECT IDENTIFIER to each metric. As
an example oneWayDelay and oneWayDelayPoissonStream have different
identifiers.


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The registry has three root branches. The category of the document
determines the node the branch the metric is identified in:

      + Metrics defined in a RFC are identified in the 'rfc' tree;
      + Metrics defined in a draft of a working group are identified in
the 'draft' tree;
      + Metrics defined elsewhere may be identified in the 'other' tree.
The name of the metric has to respect ASN.1 constraints. The name has to
start with a lower case. The letter - is forbidden (more or less) in the
name. In a way to preserve the readability of the metric name the
letters following a - are forced to upper case.

Sometime the name of the metric starts with 'Type-P'. It depends on the
document not the semantic of the metric. In the registry it is removed
from the name of the metric to reduce the length of the name and to
uniforms the metrics names.

Each sub-tree has specific rules to assign a node to a metric.

Each metrics specification will include a section describing its metrics
identifiers.

IPPM metrics are numbered using the specifications submissions order and
the metrics definitions order in each memo.

4.1. Metrics registry format

Each memo includes a registry where are identified the metrics. The name
of the section where is defined the registry terminate by 'metrics
registry'. The registry is defined using a MODULE-IDENTITY macro. Each
metric is identify in the registry using a OBJECT-IDENTITY macro. The
identification defines the metric name, status, reference and OBJECT
IDENTIFIER.

4.2. Metrics specified in a RFC

4.2.1. Rules

The metrics specified in a RFC are registered in the node rfc(1).

They are numbered using the RFC order and the metrics definitions order
in each memo.

The value assigned to a metric is definitive and can not be reused.

4.2.2. Current WG RFC integration in the registry

These rules are applied to initiate the registry. The metrics already
standardized are identified in the section 5 'IPPM metrics registry' of
this memo. The registry definition should be respectful of the format
defined in "4.1 Metrics registry format".

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4.2.3. Identification of the metrics standardized in future RFC

The specification of metrics is a continuous process. The same rules are
applied to number the metrics of the new RFC. The identifiers are
included in the section 'Standard metrics registry' of the RFC.

The status of the identifiers assigned previously to the draft
corresponding to the new RFC are set up to 'obsolete' and may not be
reassigned.

4.3. Metrics specified in a WG draft

Usually, metrics are implemented during the specification process. At
this step, a metric is not identified as an IPPM metric. There is a need
to provide temporary metric identifiers to facilitate software
integration and to permit interoperability measurement among different
implementations. Otherwise the interoperability will be extremely
limited du to the fact that implementers will choose arbitrary values to
identify the new metrics.

4.3.1. Rules

The metrics specified in an IPPM draft are registered in the node
draft(2).

A draft is more or less released two times a year. It looks ambiguous to
use the chronological order of the successive drafts submissions to
numbered the metrics because usually the metric name does not change
among the different releases. On the other hand new metrics may be added
in successive releases of a draft.

4.3.2. Current WG drafts integration in the registry

The current drafts are numbered using the submission orders of their
current release and using the order of the metrics definition in each
memo.

The previous rules are applied to initiate the registry. The metrics
specified in current WG drafts are identified in the section 5 'draft
metrics registry' of this memo. The registry definition should be
respectful of the format defined in "4.1 Metrics registry format".

4.3.3. Identification of a metric added to an existing WG draft

Despite new metrics are rarely created in successive releases of a
draft, an arbitrary metric identifier may be provided by the IPPM WG to
identify the new metric.




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The identifier is added in the section named 'Draft metrics registry' of
the draft. The registry definition should be respectful of the format
defined in "4.1 Metrics registry format".

4.3.4. Identification of the metrics defined in future WG drafts

They are numbered using the chronological orders of the first submission
of the draft and using the order of the metrics definition in each memo.

These identifiers are included in the draft in a section named 'Draft
metrics registry'. The registry definition should be respectful of the
format defined in "4.1 Metrics registry format".

The name of the metric starts with 'draft' to clearly distinguish the
draft OBJECT INDENTIFIER from the its future standard OBJECT
INDENTIFIER.

Example:

Consider a IPPM WG draft that defines the multicast metric Type-P-
Multicast-Instantaneous-Hop-One-way-Delay.

The name of this metric in the section 'Draft metrics registry' is
'draftMulticastInstantaneousHopOneWayDelay'. When this draft will go to
RFC, the metric name will become 'multicastInstantaneousHopOneWayDelay'.

4.4. Metrics specified in other documents

Other metrics may be associated with identifiers in the sub tree
other(4). The identifiers are provided by the IPPM WG.

These identifiers are included in the corresponding document in a
section named 'IPPM registry identifiers'. The registry definition
should be respectful of the format defined in "4.1 Metrics registry
format".


5. Initial IPPM registry

   IPPM-METRICS-REGISTRY DEFINITIONS ::= BEGIN

   IMPORTS
        MODULE-IDENTITY
                FROM SNMPv2-SMI;

   ippmMetricsRegistry MODULE-IDENTITY
       LAST-UPDATED "200206241100Z"    -- June 24, 2002
        ORGANIZATION    "IPPM working Group"
        CONTACT-INFO    "ippm@advanced.org"
        DESCRIPTION


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   " This memo defines a portion of the Management Information Base
   (MIB) for use with network management protocols in TCP/IP-based
   internets. In particular, it defines a registry of the IPPM working
   group metrics."
   REVISION      "200206241100z"
   DESCRIPTION
   "Each metric identifier is defined in a OBJECT IDENTITY macro."
   ::= { ippm 1 }

   --
   -- ippm      OBJECT IDENTIFIER       ::= XXXX -- To be assigned
   --

   rfc          OBJECT IDENTIFIER       ::= { registry 1 }
   draft        OBJECT IDENTIFIER       ::= { registry 2 }
   other        OBJECT IDENTIFIER       ::= { registry 4 }

   --
   -- Registry of the metrics of the IPPM WG RFCs
   --

   --
   -- RFC 2678 " IPPM Metrics for Measuring Connectivity"
   --

   instantaneousUnidirectionalConnectivity OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Instantaneous-Unidirectional-
   Connectivity metric."
        REFERENCE "RFC2678, section 2."
        ::={rfc 1}

   instantaneousBidirectionalConnectivity OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Instantaneous-Bidirectional-
   Connectivity metric."
        REFERENCE "RFC2678, section 3."
         ::={rfc 2}

   intervalUnidirectionalConnectivity OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Interval-Unidirectional-
   Connectivity metric."
        REFERENCE "RFC2678, section 4."
         ::= { rfc 3 }

   intervalBidirectionalConnectivity OBJECT-IDENTITY
        STATUS current

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        DESCRIPTION
        "The identifier for the Type-P-Interval-Bidirectional-
   Connectivity metric."
        REFERENCE "RFC2678, section 5."
         ::= { rfc  4 }

   intervalTemporalConnectivity OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P1-P2-Interval-Temporal-
   Connectivity metric. "
        REFERENCE "RFC2678, section 6."
Type-P-One-way-Delay
         ::= { rfc  5 }


   --
   -- RFC 2679 "A One-way Delay Metric for IPPM"
   --

   oneWayDelay OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Delay metric. "
        REFERENCE "RFC2679, section 3."
         ::= { rfc  6 }

   oneWayDelayPoissonStream OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Delay-Poisson-Stream
   metric. "
        REFERENCE "RFC2679, section 4"
         ::= { rfc  7 }

   oneWayDelayPercentile OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Delay-Percentile metric."
        REFERENCE "RFC2679, section 5.1."
         ::= { rfc  8 }

   oneWayDelayMedian OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Delay-Median metric."
        REFERENCE "RFC2679, section 5.2."
         ::= { rfc  9 }

   oneWayDelayMinimum OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION


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        "The identifier for the Type-P-One-way-Delay-Minimum metric. "
        REFERENCE "RFC2679, section 5.3."
         ::= { rfc 10 }

   oneWayDelayInversePercentile OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Delay-Inverse-Percentile
   metric. "
        REFERENCE "RFC2679, section 5.4."
         ::= { rfc 11 }

   --
   -- RFC 2680  "One Way Packet Loss Metric for IPPM"
   --

   oneWayPacketLoss OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Packet-Loss metric."
        REFERENCE "RFC2680, section 2."
         ::= { rfc 12 }

   oneWayPacketLossPoissonStream OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Packet-Loss-Poisson-
   Stream metric."
        REFERENCE "RFC2680, section 3."
         ::= { rfc 13 }

   oneWayPacketLossAverage OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-One-way-Packet-Loss-Average
   metric."
        REFERENCE "RFC2680, section 4."
         ::= { rfc 14 }

   --
   -- RFC2681 "A Round-trip Delay Metric for IPPM"
   --

   roundtripDelay OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Round-trip-Delay metric."
        REFERENCE " section 2 of the rfc2681."
         ::= { rfc 15 }

   roundtripDelayPoissonStream OBJECT-IDENTITY

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        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Round-trip-Delay-Poisson-Stream
   metric."
        REFERENCE "RFC2681, section 4."
         ::= { rfc 16 }

   roundtripDelayPercentile OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Round-trip-Delay-Percentile
   metric."
        REFERENCE "RFC2681, section 4.1."
         ::= { rfc 17 }

   roundtripDelayMedian OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Round-trip-Delay-Median metric."
        REFERENCE "RFC2681, section 4.2."
         ::= { rfc 18 }

   roundtripDelayMinimum OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Round-trip-Delay-Minimum metric."
        REFERENCE "RFC2681, section 4.3."
         ::= { rfc 19 }

   roundtripDelayInversePercentile OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The identifier for the Type-P-Round-trip-Inverse-Percentile
   metric."
        REFERENCE "RFC2681, section 4.4."
         ::= { rfc 20 }

   --
   -- Registry of the metrics of the IPPM WG drafts
   --

   --
   -- One-way Loss Pattern Sample Metrics draft
   --

   draftOneWayLossDistanceStream OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-Way-Loss-Distance-
   Stream metric."
        REFERENCE "Work in progress"

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        ::={draft 1}

   draftOneWayLossPeriodStream OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-Way-Loss-Period-Stream
   metric."
        REFERENCE "Work in progress"
         ::={draft 2}

   draftOneWayLossNoticeableRate OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-Way-Loss-Noticeable-
   Rate metric."
        REFERENCE "Work in progress"
         ::= { draft  3 }

   draftOneWayLossPeriodTotal OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-Way-Loss-Period-Total
   metric."
        REFERENCE "Work in progress"
         ::= { draft  4 }

   draftOneWayLossPeriodLengths OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-Way-Loss-Period-Lengths
   metric."
        REFERENCE "Work in progress"
         ::= { draft  5 }

   draftOneWayInterLossPeriodLengths OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-Way-Inter-Loss-Period-
   Lengths metric."
        REFERENCE "Work in progress"
         ::= { draft 6 }



   --
   -- Network performance measurement with periodic streams draft
   --

   draftOneWayDelayPeriodicStream OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION

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        "The draft identifier for the Type-P-One-way-Delay-Periodic-
   Stream metric."
        REFERENCE "Work in progress"
         ::= { draft 7 }


   --
   -- IP Packet Delay Variation Metrics draft
   --

   draftOneWayIpdv OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-way-ipdv metric."
        REFERENCE "Work in progress"
         ::= { draft 8 }

   draftOneWayIpdvPoissonStream OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-way-ipdv-Poisson-stream
   metric."
        REFERENCE "Work in progress"
         ::= { draft 9 }

   draftOneWayIpdvPercentile OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-way-ipdv-percentile
   metric."
        REFERENCE "Work in progress"
         ::= { draft 10 }

   draftOneWayIpdvJitter OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-way-ipdv-jitter
   metric."
        REFERENCE "Work in progress"
         ::= { draft 11 }

   draftOneWayPeakToPeakIpdv OBJECT-IDENTITY
        STATUS  current
        DESCRIPTION
        "The draft identifier for the Type-P-One-way-peak-to-peak-ipdv
   metric."
        REFERENCE "Work in progress"
         ::= { draft 12 }

   --
   -- Metrics registry from other documents

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   --

   END


6. References


   [1] Bradner, S., "The Internet Standards Process -- Revision 3", BCP
      9, RFC 2026, October 1996.

   [2] Mahdavi J. and V. Paxson, "IPPM Metrics for Measuring
      Connectivity", RFC 2678, September 1999.

   [3] Almes, G.,  Kalidindi, S.  and M. Zekauskas, "A One-way Delay
      Metric for IPPM", RFC 2679, September 1999.

   [4] Almes, G., Kalidindi, S. and M. Zekauskas, "A One-way Packet
      Loss Metric for IPPM", RFC 2680, September 1999.

   [5]Almes, G., Kalidindi, S. and M. Zekauskas, "A Round-trip Delay
      Metric for IPPM.", RFC 2681, September 1999.



7. Author's Addresses

   Emile STEPHAN
   France Telecom R & D
   2 avenue Pierre Marzin
   F-22307 Lannion cedex
   Phone: (+ 33) 2 96 05 11 11
   Email: emile.stephan@francetelecom.com


Full Copyright Statement


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