Network Working Group E. Stephan

Network Working Group E. Stephan
Request for Comments: 4148 France Telecom R&D
BCP: 108 August 2005
Category: Best Current Practice

IP Performance Metrics (IPPM) Metrics Registry

Status of this Memo

This document specifies an Internet Best Current Practices for the
Internet Community, and requests discussion and suggestions for
improvements. Distribution of this memo is unlimited.

Copyright Notice

Copyright (C) The Internet Society (2005).

Abstract

This memo defines a registry for IP Performance Metrics (IPPM). It
assigns and registers an initial set of OBJECT IDENTITIES to
currently defined metrics in the IETF.

This memo also defines the rules for adding IP Performance Metrics
that are defined in the future and for encouraging all IP performance
metrics to be registered here.

IANA has been assigned to administer this new registry.

Table of Contents

1. The Internet-Standard Management Framework ......................2
2. Overview ........................................................2
3. IP Performance Metrics Registry Framework .......................2
4. Initial IPPM Metrics Registry Creation ..........................3
5. IANA Considerations .............................................4
5.1. Management Rules ...........................................4
5.2. Registration Template ......................................4
6. Initial IPPM Registry Definition ................................4
7. Security Considerations ........................................11
8. References .....................................................12
8.1. Normative References ......................................12
8.2. Informative References ....................................12

Stephan Best Current Practice [Page 1]

RFC 4148 IP Performance Metrics Registry August 2005

1. The Internet-Standard Management Framework

For a detailed overview of the documents that describe the current
Internet-Standard Management Framework, please refer to section 7 of
RFC 3410 [RFC3410].

Managed objects are accessed via a virtual information store, termed
the Management Information Base or MIB. MIB objects are generally
accessed through the Simple Network Management Protocol (SNMP).
Objects in the MIB are defined using the mechanisms defined in the
Structure of Management Information (SMI). This memo specifies a MIB
module that is compliant to the SMIv2, which is described in STD 58,
RFC 2578 [RFC2578], STD 58, RFC 2579 [RFC2579] and STD 58, RFC 2580
[RFC2580].

2. Overview

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

o to permit metrics to be clearly referenced by MIB modules or other
data models;

o to provide metrics identifiers for measurement interoperability;

o to take special care with the integration of future standardized
metrics because it is a continuous process;

o to provide room where other standards bodies can register their
metrics in order to encourage IP performance metrics to have
OBJECT IDENTITIES rooted at a common point because the intent of
the IPPM WG is to cooperate with other appropriate standards
bodies (or fora) to promote consistent metrics;

o and, similarly, to provide room for enterprises to register
metrics.

3. IP Performance Metrics Registry Framework

MIB modules need to be able to reference IPPM Metrics precisely. The
registry associates an OBJECT-IDENTITY with each metric. For
example, Type-P-One-way-Delay and Type-P-One-way-Delay-Poisson-Stream
have different OBJECT IDENTITIES.

The registry has one branch. Metrics are identified in the
'ianaIppmMetrics' subtree.

Stephan Best Current Practice [Page 2]

RFC 4148 IP Performance Metrics Registry August 2005

This document defines an initial registry of the existing metrics
defined in the IPPM WG and the rules to manage the registry.

Documents defining metrics in the future will include in the IANA
section the registration information to identify these metrics
unambiguously.

4. Initial IPPM Metrics Registry Creation

The initial registry identifies the metrics currently defined in the
RFCs produced in the IPPM WG. To date, the IPPM WG defined 33
metrics related to the following 7 topics:

1. IPPM Metrics for Measuring Connectivity, RFC 2678 [RFC2678]

2. One-way Delay Metrics, RFC 2679 [RFC2679]

3. One-way Packet Loss Metrics, RFC 2680 [RFC2680]

4. Round-trip Delay Metrics, RFC 2681 [RFC2681]

5. One-way Loss Pattern Sample Metrics, RFC 3357 [RFC3357]

6. IP Packet Delay Variation Metric, RFC 3393 [RFC3393]

7. IPPM Metrics for periodic streams, RFC 3432 [RFC3432]

These are sequentially registered in the node ianaIppmMetrics.

The naming conventions used for the existing metrics, and encouraged
for new IPPM metrics, are:

o Metrics names conform SMIv2 rules for descriptors defined in
section 3.1 of [RFC2578];

o The name starts with the prefix 'ietf';

o 'Type-P' prefix is removed;

o '-' are removed;

o The letter following a '-' is changed to uppercase.

Stephan Best Current Practice [Page 3]

RFC 4148 IP Performance Metrics Registry August 2005

5. IANA Considerations

This section describes the rules for the management of the registry
by IANA.

5.1. Management Rules

Registrations are done sequentially by IANA in the ianaIppmMetrics
subtree on the basis of 'Specification Required', as defined in
[RFC2434].

The reference of the specification must point to a stable document
including a title, a revision, and a date.

The name always starts with the name of the organization and must
respect the SMIv2 rules for descriptors defined in section 3.1 of
[RFC2578].

A document that creates new metrics would have an "IANA
Considerations" section in which it would describe new metrics to be
registered.

An OBJECT IDENTITY assigned to a metric is definitive and cannot be
reused. If a new version of a metric is produced, then it is
assigned with a new name and a new identifier.

5.2. Registration Template

The following is a proposed template to insert in the IANA
considerations section. For each metric, that section would
instantiate the following statement:

IANA has registed the following metric in the IANA-IPPM-METRICS-
REGISTRY-MIB:

aNewMetricName OBJECT-IDENTITY
STATUS current
DESCRIPTION
"The identifier for a new metric."
REFERENCE
"Reference R, section n."
::= { ianaIppmMetrics nn } -- IANA assigns nn

6. Initial IPPM Registry Definition

IANA-IPPM-METRICS-REGISTRY-MIB DEFINITIONS ::= BEGIN

IMPORTS

Stephan Best Current Practice [Page 4]

RFC 4148 IP Performance Metrics Registry August 2005

OBJECT-IDENTITY, MODULE-IDENTITY, mib-2
FROM SNMPv2-SMI;

ianaIppmMetricsRegistry MODULE-IDENTITY
LAST-UPDATED "200507280000Z" -- July 28, 2005
ORGANIZATION "IANA"
CONTACT-INFO "Internet Assigned Numbers Authority

Postal: ICANN
4676 Admiralty Way, Suite 330
Marina del Rey, CA 90292

Tel: +1 310 823 9358
E-Mail: [email protected]"

DESCRIPTION
"This module defines a registry for IP Performance Metrics.

Registrations are done sequentially by IANA in the ianaIppmMetrics
subtree on the basis of 'Specification Required', as defined in
[RFC2434].

The reference of the specification must point to a stable document
including a title, a revision, and a date.

The name always starts with the name of the organization and must
respect the SMIv2 rules for descriptors defined in section 3.1 of
[RFC2578].

A document that creates new metrics would have an IANA
considerations section in which it would describe new metrics to
be registered.

An OBJECT IDENTITY assigned to a metric is definitive and cannot
be reused. If a new version of a metric is produced, then it is
assigned with a new name and a new identifier.

Copyright (C) The Internet Society (2005). The initial version of
this MIB module was published in RFC 4148; for full legal notices
see the RFC itself or
http://www.ietf.org/copyrights/ianamib.html."

REVISION "200507280000Z" -- July 28, 2005
DESCRIPTION
"Initial version of the IPPM metrics registry module.
This version published as RFC 4148."
::= { mib-2 128 }

Stephan Best Current Practice [Page 5]

RFC 4148 IP Performance Metrics Registry August 2005

ianaIppmMetrics OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Registration point for IP Performance Metrics."
::= { ianaIppmMetricsRegistry 1 }

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

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

ietfInstantUnidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Instantaneous-Unidirectional-Connectivity"
REFERENCE "RFC2678, section 2."
::= { ianaIppmMetrics 1}

ietfInstantBidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Instantaneous-Bidirectional-Connectivity"
REFERENCE "RFC2678, section 3."
::= { ianaIppmMetrics 2}

ietfIntervalUnidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Interval-Unidirectional-Connectivity"
REFERENCE "RFC2678, section 4."
::= { ianaIppmMetrics 3 }

ietfIntervalBidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Interval-Bidirectional-Connectivity"
REFERENCE "RFC2678, section 5."
::= { ianaIppmMetrics 4 }

ietfIntervalTemporalConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P1-P2-Interval-Temporal-Connectivity"
REFERENCE "RFC2678, section 6."
::= { ianaIppmMetrics 5 }

Stephan Best Current Practice [Page 6]

RFC 4148 IP Performance Metrics Registry August 2005

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

ietfOneWayDelay OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay"
REFERENCE "RFC2679, section 3."
::= { ianaIppmMetrics 6 }

ietfOneWayDelayPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Poisson-Stream"
REFERENCE "RFC2679, section 4."
::= { ianaIppmMetrics 7 }

ietfOneWayDelayPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Percentile"
REFERENCE "RFC2679, section 5.1."
::= { ianaIppmMetrics 8 }

ietfOneWayDelayMedian OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Median"
REFERENCE "RFC2679, section 5.2."
::= { ianaIppmMetrics 9 }

ietfOneWayDelayMinimum OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Minimum"
REFERENCE "RFC2679, section 5.3."
::= { ianaIppmMetrics 10 }

ietfOneWayDelayInversePercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Inverse-Percentile"
REFERENCE "RFC2679, section 5.4."
::= { ianaIppmMetrics 11 }

Stephan Best Current Practice [Page 7]

RFC 4148 IP Performance Metrics Registry August 2005

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

ietfOneWayPktLoss OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Packet-Loss"
REFERENCE "RFC2680, section 2."
::= { ianaIppmMetrics 12 }

ietfOneWayPktLossPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Packet-Loss-Poisson-Stream"
REFERENCE "RFC2680, section 3."
::= { ianaIppmMetrics 13 }

ietfOneWayPktLossAverage OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Packet-Loss-Average"
REFERENCE "RFC2680, section 4."
::= { ianaIppmMetrics 14 }

--
-- RFC 2681 "A Round-trip Delay Metric for IPPM"
--

ietfRoundTripDelay OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay"
REFERENCE " section 2 of the rfc2681."
::= { ianaIppmMetrics 15 }

ietfRoundTripDelayPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Poisson-Stream"
REFERENCE "RFC2681, section 4."
::= { ianaIppmMetrics 16 }

ietfRoundTripDelayPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Percentile"
REFERENCE "RFC2681, section 4.1."

Stephan Best Current Practice [Page 8]

RFC 4148 IP Performance Metrics Registry August 2005

::= { ianaIppmMetrics 17 }

ietfRoundTripDelayMedian OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Median"
REFERENCE "RFC2681, section 4.2."
::= { ianaIppmMetrics 18 }

ietfRoundTripDelayMinimum OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Minimum"
REFERENCE "RFC2681, section 4.3."
::= { ianaIppmMetrics 19 }

ietfRoundTripDelayInvPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Inverse-Percentile"
REFERENCE "RFC2681, section 4.4."
::= { ianaIppmMetrics 20 }

--
-- RFC 3357: "One-way Loss Pattern Sample Metrics"
--

ietfOneWayLossDistanceStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Distance-Stream"
REFERENCE " RFC3357, section 5.4.1."
::={ ianaIppmMetrics 21}

ietfOneWayLossPeriodStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Period-Stream"
REFERENCE " RFC3357, section 5.4.2."
::={ ianaIppmMetrics 22}

ietfOneWayLossNoticeableRate OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Noticeable-Rate"
REFERENCE " RFC3357, section 6.1."
::= { ianaIppmMetrics 23 }

Stephan Best Current Practice [Page 9]

RFC 4148 IP Performance Metrics Registry August 2005

ietfOneWayLossPeriodTotal OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Period-Total"
REFERENCE " RFC3357, section 6.2."
::= { ianaIppmMetrics 24 }

ietfOneWayLossPeriodLengths OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Period-Lengths"
REFERENCE " RFC3357, section 6.3."
::= { ianaIppmMetrics 25 }

ietfOneWayInterLossPeriodLengths OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Inter-Loss-Period-Lengths"
REFERENCE " RFC3357, section 6.4."
::= { ianaIppmMetrics 26 }

--
-- RFC 3393: "IP Packet Delay Variation Metric
-- for IP Performance Metrics (IPPM)"

ietfOneWayIpdv OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv"
REFERENCE " RFC3393, section 2."
::= { ianaIppmMetrics 27 }

ietfOneWayIpdvPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv-Poisson-stream"
REFERENCE " RFC3393, section 3."
::= { ianaIppmMetrics 28 }

ietfOneWayIpdvPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv-percentile"
REFERENCE " RFC3393, section 4.3."
::= { ianaIppmMetrics 29 }

ietfOneWayIpdvInversePercentile OBJECT-IDENTITY
STATUS current

Stephan Best Current Practice [Page 10]

RFC 4148 IP Performance Metrics Registry August 2005

DESCRIPTION
"Type-P-One-way-ipdv-inverse-percentile"
REFERENCE " RFC3393, section 4.4."
::= { ianaIppmMetrics 30 }

ietfOneWayIpdvJitter OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv-jitter"
REFERENCE " RFC3393, section 4.5."
::= { ianaIppmMetrics 31 }

ietfOneWayPeakToPeakIpdv OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-peak-to-peak-ipdv"
REFERENCE " RFC3393, section 4.6."
::= { ianaIppmMetrics 32 }

--
-- RFC 3432: "Network performance measurement with periodic streams"
--

ietfOneWayDelayPeriodicStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Periodic-Stream"
REFERENCE " RFC3432, section 4."
::= { ianaIppmMetrics 33 }

END

7. Security Considerations

This module does not define any management objects. Instead, it
assigns a set of OBJECT-IDENTITIES which may be used by other MIB
modules to identify specific IP Performance Metrics.

Meaningful security considerations can only be written in the MIB
modules that define management objects. This document has therefore
no impact on the security of the Internet.

Stephan Best Current Practice [Page 11]

RFC 4148 IP Performance Metrics Registry August 2005

8. References

8.1. Normative References

[RFC2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434,
October 1998.

[RFC2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Structure of Management Information Version 2 (SMIv2)",
STD 58, RFC 2578, April 1999.

[RFC2678] Mahdavi, J. and V. Paxson, "IPPM Metrics for Measuring
Connectivity", RFC 2678, September 1999.

[RFC2679] Almes, G., Kalidindi, S., and M. Zekauskas, "A One-way
Delay Metric for IPPM", RFC 2679, September 1999.

[RFC2680] Almes, G., Kalidindi, S., and M. Zekauskas, "A One-way
Packet Loss Metric for IPPM", RFC 2680, September 1999.

[RFC2681] Almes, G., Kalidindi, S., and M. Zekauskas, "A Round-trip
Delay Metric for IPPM", RFC 2681, September 1999.

[RFC3357] Koodli, R. and R. Ravikanth, "One-way Loss Pattern Sample
Metrics", RFC 3357, August 2002.

[RFC3393] Demichelis, C. and P. Chimento, "IP Packet Delay Variation
Metric for IP Performance Metrics (IPPM)", RFC 3393,
November 2002.

[RFC3432] Raisanen, V., Grotefeld, G., and A. Morton, "Network
performance measurement with periodic streams", RFC 3432,
November 2002.

8.2. Informative References

[RFC2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Textual Conventions for SMIv2", STD 58, RFC 2579,
April 1999.

[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.

[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.

Stephan Best Current Practice [Page 12]

RFC 4148 IP Performance Metrics Registry August 2005

Author's Address

Stephan Emile
France Telecom R & D
2 avenue Pierre Marzin
Lannion F-22307
France

Fax: +33 2 96 05 18 52
EMail: [email protected]

Stephan Best Current Practice [Page 13]

RFC 4148 IP Performance Metrics Registry August 2005

Full Copyright Statement

Copyright (C) The Internet Society (2005).

This document is subject to the rights, licenses and restrictions
contained in BCP 78, and except as set forth therein, the authors
retain all their rights.

This document and the information contained herein are provided on an
"AS IS" basis and THE CONTRIBUTOR, THE ORGANIZATION HE/SHE REPRESENTS
OR IS SPONSORED BY (IF ANY), THE INTERNET SOCIETY AND THE INTERNET
ENGINEERING TASK FORCE DISCLAIM ALL WARRANTIES, EXPRESS OR IMPLIED,
INCLUDING BUT NOT LIMITED TO ANY WARRANTY THAT THE USE OF THE
INFORMATION HEREIN WILL NOT INFRINGE ANY RIGHTS OR ANY IMPLIED
WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.

Intellectual Property

The IETF takes no position regarding the validity or scope of any
Intellectual Property Rights or other rights that might be claimed to
pertain to the implementation or use of the technology described in
this document or the extent to which any license under such rights
might or might not be available; nor does it represent that it has
made any independent effort to identify any such rights. Information
on the procedures with respect to rights in RFC documents can be
found in BCP 78 and BCP 79.

Copies of IPR disclosures made to the IETF Secretariat and any
assurances of licenses to be made available, or the result of an
attempt made to obtain a general license or permission for the use of
such proprietary rights by implementers or users of this
specification can be obtained from the IETF on-line IPR repository at
http://www.ietf.org/ipr.

The IETF invites any interested party to bring to its attention any
copyrights, patents or patent applications, or other proprietary
rights that may cover technology that may be required to implement
this standard. Please address the information to the IETF at ietf-
[email protected].

Acknowledgement

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

Stephan Best Current Practice [Page 14]