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
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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 [RFC 3410].
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 [RFC 2578], STD 58, RFC 2579 [RFC 2579] and STD 58, RFC 2580
[RFC 2580].
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.
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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 [RFC 2678]
2. One-way Delay Metrics, RFC 2679 [RFC 2679]
3. One-way Packet Loss Metrics, RFC 2680 [RFC 2680]
4. Round-trip Delay Metrics, RFC 2681 [RFC 2681]
5. One-way Loss Pattern Sample Metrics, RFC 3357 [RFC 3357]
6. IP Packet Delay Variation Metric, RFC 3393 [RFC 3393]
7. IPPM Metrics for periodic streams, RFC 3432 [RFC 3432]
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 [RFC 2578];
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.
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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
[RFC 2434].
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
[RFC 2578].
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
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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: iana@iana.org"
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
[RFC 2434].
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
[RFC 2578].
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 }
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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 "RFC 2678, section 2."
::= { ianaIppmMetrics 1}
ietfInstantBidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Instantaneous-Bidirectional-Connectivity"
REFERENCE "RFC 2678, section 3."
::= { ianaIppmMetrics 2}
ietfIntervalUnidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Interval-Unidirectional-Connectivity"
REFERENCE "RFC 2678, section 4."
::= { ianaIppmMetrics 3 }
ietfIntervalBidirConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Interval-Bidirectional-Connectivity"
REFERENCE "RFC 2678, section 5."
::= { ianaIppmMetrics 4 }
ietfIntervalTemporalConnectivity OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P1-P2-Interval-Temporal-Connectivity"
REFERENCE "RFC 2678, section 6."
::= { ianaIppmMetrics 5 }
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--
-- RFC 2679 "A One-way Delay Metric for IPPM"
--
ietfOneWayDelay OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay"
REFERENCE "RFC 2679, section 3."
::= { ianaIppmMetrics 6 }
ietfOneWayDelayPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Poisson-Stream"
REFERENCE "RFC 2679, section 4."
::= { ianaIppmMetrics 7 }
ietfOneWayDelayPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Percentile"
REFERENCE "RFC 2679, section 5.1."
::= { ianaIppmMetrics 8 }
ietfOneWayDelayMedian OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Median"
REFERENCE "RFC 2679, section 5.2."
::= { ianaIppmMetrics 9 }
ietfOneWayDelayMinimum OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Minimum"
REFERENCE "RFC 2679, section 5.3."
::= { ianaIppmMetrics 10 }
ietfOneWayDelayInversePercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Delay-Inverse-Percentile"
REFERENCE "RFC 2679, section 5.4."
::= { ianaIppmMetrics 11 }
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--
-- RFC 2680 "One-way Packet Loss Metric for IPPM"
--
ietfOneWayPktLoss OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Packet-Loss"
REFERENCE "RFC 2680, section 2."
::= { ianaIppmMetrics 12 }
ietfOneWayPktLossPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Packet-Loss-Poisson-Stream"
REFERENCE "RFC 2680, section 3."
::= { ianaIppmMetrics 13 }
ietfOneWayPktLossAverage OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-Packet-Loss-Average"
REFERENCE "RFC 2680, 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 RFC 2681."
::= { ianaIppmMetrics 15 }
ietfRoundTripDelayPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Poisson-Stream"
REFERENCE "RFC 2681, section 4."
::= { ianaIppmMetrics 16 }
ietfRoundTripDelayPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Percentile"
REFERENCE "RFC 2681, section 4.1."
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::= { ianaIppmMetrics 17 }
ietfRoundTripDelayMedian OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Median"
REFERENCE "RFC 2681, section 4.2."
::= { ianaIppmMetrics 18 }
ietfRoundTripDelayMinimum OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Delay-Minimum"
REFERENCE "RFC 2681, section 4.3."
::= { ianaIppmMetrics 19 }
ietfRoundTripDelayInvPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-Round-trip-Inverse-Percentile"
REFERENCE "RFC 2681, 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 " RFC 3357, section 5.4.1."
::={ ianaIppmMetrics 21}
ietfOneWayLossPeriodStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Period-Stream"
REFERENCE " RFC 3357, section 5.4.2."
::={ ianaIppmMetrics 22}
ietfOneWayLossNoticeableRate OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Noticeable-Rate"
REFERENCE " RFC 3357, section 6.1."
::= { ianaIppmMetrics 23 }
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ietfOneWayLossPeriodTotal OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Period-Total"
REFERENCE " RFC 3357, section 6.2."
::= { ianaIppmMetrics 24 }
ietfOneWayLossPeriodLengths OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Loss-Period-Lengths"
REFERENCE " RFC 3357, section 6.3."
::= { ianaIppmMetrics 25 }
ietfOneWayInterLossPeriodLengths OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-Way-Inter-Loss-Period-Lengths"
REFERENCE " RFC 3357, 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 " RFC 3393, section 2."
::= { ianaIppmMetrics 27 }
ietfOneWayIpdvPoissonStream OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv-Poisson-stream"
REFERENCE " RFC 3393, section 3."
::= { ianaIppmMetrics 28 }
ietfOneWayIpdvPercentile OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv-percentile"
REFERENCE " RFC 3393, section 4.3."
::= { ianaIppmMetrics 29 }
ietfOneWayIpdvInversePercentile OBJECT-IDENTITY
STATUS current
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DESCRIPTION
"Type-P-One-way-ipdv-inverse-percentile"
REFERENCE " RFC 3393, section 4.4."
::= { ianaIppmMetrics 30 }
ietfOneWayIpdvJitter OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-ipdv-jitter"
REFERENCE " RFC 3393, section 4.5."
::= { ianaIppmMetrics 31 }
ietfOneWayPeakToPeakIpdv OBJECT-IDENTITY
STATUS current
DESCRIPTION
"Type-P-One-way-peak-to-peak-ipdv"
REFERENCE " RFC 3393, 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 " RFC 3432, 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.
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8. References
8.1. Normative References
[RFC 2434] Narten, T. and H. Alvestrand, "Guidelines for Writing an
IANA Considerations Section in RFCs", BCP 26, RFC 2434,
October 1998.
[RFC 2578] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Structure of Management Information Version 2 (SMIv2)",
STD 58, RFC 2578, April 1999.
[RFC 2678] Mahdavi, J. and V. Paxson, "IPPM Metrics for Measuring
Connectivity", RFC 2678, September 1999.
[RFC 2679] Almes, G., Kalidindi, S., and M. Zekauskas, "A One-way
Delay Metric for IPPM", RFC 2679, September 1999.
[RFC 2680] Almes, G., Kalidindi, S., and M. Zekauskas, "A One-way
Packet Loss Metric for IPPM", RFC 2680, September 1999.
[RFC 2681] Almes, G., Kalidindi, S., and M. Zekauskas, "A Round-trip
Delay Metric for IPPM", RFC 2681, September 1999.
[RFC 3357] Koodli, R. and R. Ravikanth, "One-way Loss Pattern Sample
Metrics", RFC 3357, August 2002.
[RFC 3393] Demichelis, C. and P. Chimento, "IP Packet Delay Variation
Metric for IP Performance Metrics (IPPM)", RFC 3393,
November 2002.
[RFC 3432] Raisanen, V., Grotefeld, G., and A. Morton, "Network
performance measurement with periodic streams", RFC 3432,
November 2002.
8.2. Informative References
[RFC 2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Textual Conventions for SMIv2", STD 58, RFC 2579,
April 1999.
[RFC 2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder,
"Conformance Statements for SMIv2", STD 58, RFC 2580,
April 1999.
[RFC 3410] Case, J., Mundy, R., Partain, D., and B. Stewart,
"Introduction and Applicability Statements for Internet-
Standard Management Framework", RFC 3410, December 2002.
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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: emile.stephan@francetelecom.com
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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.
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Acknowledgement
Funding for the RFC Editor function is currently provided by the
Internet Society.
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