RFC 4148
IP Performance Metrics (IPPM) Metrics Registry
Part 1 of 3 π (more is coming, so stay tuned, bestie!)
RFC 4148: IP Performance Metrics (IPPM) Metrics Registry π
Okay so this one is a Best Current Practice, labelled BCP 108 π«Ά. It was written by E. Stephan from France Telecom R&D and published in August 2005. It's in the Network Working Group and carries the number RFC 4148. Its title block doesn't list anything it obsoletes or updates, so it isn't replacing or changing any earlier RFC πΈ.
Status of this Memo
Here's the vibe check: this document specifies an Internet Best Current Practice for the Internet Community, and it's asking everyone to talk about it and suggest improvements π¬. Distribution of this memo is unlimited, so share it with whoever you want π¦.
Copyright Notice
Copyright (C) The Internet Society (2005). β¨
Abstract
Okay, so this memo sets up a registry for IP Performance Metrics (IPPM) π. It gives an initial set of OBJECT IDENTITIES to the metrics the IETF has already defined, which is so organised π.
It also lays down the rules for adding IP Performance Metrics that get defined in the future, and it encourages everyone to register their performance metrics here too π.
IANA has been assigned to administer this new registry π.
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
1. The Internet-Standard Management Framework β¨
If you want the full tea on the documents that describe the current Internet-Standard Management Framework, go read section 7 of RFC 3410 [RFC3410] π.
Managed objects are accessed through a virtual information store called the Management Information Base, or MIB ποΈ. MIB objects are generally accessed through the Simple Network Management Protocol (SNMP) π§. Objects in the MIB are defined using the mechanisms in the Structure of Management Information (SMI) π§©. 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] π .
2. Overview β¨
Here's why this memo exists π. It defines a registry of the current metrics, plus a framework for bringing in future metrics, for the following reasons:
- to permit metrics to be clearly referenced by MIB modules or other data models;
- to provide metrics identifiers for measurement interoperability;
- to take special care with the integration of future standardized metrics because it is a continuous process;
- 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 π€;
- and, similarly, to provide room for enterprises to register metrics π’.
3. IP Performance Metrics Registry Framework π
MIB modules need to be able to reference IPPM Metrics precisely π―. 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, so they're totally different metrics even though they look like cousins π―.
The registry has one branch. Metrics are identified in the 'ianaIppmMetrics' subtree π³.
This document defines an initial registry of the existing metrics defined in the IPPM WG, plus the rules to manage the registry π.
Documents defining metrics in the future will include in the IANA section the registration information needed to identify those metrics unambiguously π.
To be continued... part 2 is coming next π
6. Initial IPPM Registry Definition π
okay so this is the actual MIB module, the bit where the registry gets its real shape π§ it's written in SMIv2, and it's giving very strict, very precise, very much a spec. the module is called IANA-IPPM-METRICS-REGISTRY-MIB, and it gets its IMPORTS from SNMPv2-SMI. the top-level node is ianaIppmMetricsRegistry, last updated on July 28, 2005, and it's under IANA's name. the DESCRIPTION spells out the registry rules: registrations happen sequentially on the basis of 'Specification Required' from [RFC2434], the reference has to point to a stable document with a title, a revision, and a date, and the names have to respect the SMIv2 descriptor rules from section 3.1 of [RFC2578]. an OBJECT IDENTITY for a metric is definitive and can't be reused, so a new version of a metric gets a new name and a new identifier π
the registry itself hangs off mib-2 at 128, and ianaIppmMetrics is registration point 1 under it. every metric from the IPPM WG RFCs gets its own OBJECT-IDENTITY under ianaIppmMetrics, numbered in order, with a DESCRIPTION and a REFERENCE pointing back to the RFC section where it's defined. it's basically a giant, very organised shelf of metrics πΈ
IANA-IPPM-METRICS-REGISTRY-MIB DEFINITIONS ::= BEGIN
IMPORTS
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
[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 }
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 }
--
-- 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 }
--
-- 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."
::= { 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 }
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
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 π
okay, the security section is short but SO important, so let's be real about it π«Ά this module doesn't define any management objects at all. what it does is assign a set of OBJECT-IDENTITIES that other MIB modules can use to identify specific IP Performance Metrics. that's it, that's the whole job.
meaningful security considerations can only be written in the MIB modules that actually define management objects. so this document has no impact on the security of the Internet π
8. References π
8.1. Normative References
Here's the full reference list, copied exactly so nothing gets lost in translation β¨
[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 β¨
okay so these are the extra reading refs, bestie π they're not required to implement the thing, but they explain the vibes behind it π
[RFC2579] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Textual Conventions for SMIv2", STD 58, RFC 2579, April 1999. π¦
[RFC2580] McCloghrie, K., Perkins, D., and J. Schoenwaelder, "Conformance Statements for SMIv2", STD 58, RFC 2580, April 1999. πΈ
[RFC3410] Case, J., Mundy, R., Partain, D., and B. Stewart, "Introduction and Applicability Statements for Internet-Standard Management Framework", RFC 3410, December 2002. π
Author's Address π
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
Full Copyright Statement π
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. π
Intellectual Property π
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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-ipr@ietf.org. π₯
Acknowledgement π«Ά
Funding for the RFC Editor function is currently provided by the Internet Society. β¨
π¦ where this page comes from
- ietf: rfc4148 2005-08
- π girlified by claude-haiku-5-5 on : a language model's rewrite of the original, under its terms