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IETF RFC 4148

IP Performance Metrics (IPPM) Metrics Registry

Last modified on Thursday, August 4th, 2005

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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 © 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 top


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 [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. Stephan Best Current Practice PAGE 2 top

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 [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. Stephan Best Current Practice PAGE 3 top

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 [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 Stephan Best Current Practice PAGE 4 top

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: 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 © 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 top

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 "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 } Stephan Best Current Practice PAGE 6 top

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 "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 } Stephan Best Current Practice PAGE 7 top

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 "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." Stephan Best Current Practice PAGE 8 top

RFC 4148 IP Performance Metrics Registry August 2005 ::= { 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 } Stephan Best Current Practice PAGE 9 top

RFC 4148 IP Performance Metrics Registry August 2005 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 Stephan Best Current Practice PAGE 10 top

RFC 4148 IP Performance Metrics Registry August 2005 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. Stephan Best Current Practice PAGE 11 top

RFC 4148 IP Performance Metrics Registry August 2005 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. Stephan Best Current Practice PAGE 12 top

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: emile.stephan@francetelecom.com Stephan Best Current Practice PAGE 13 top

RFC 4148 IP Performance Metrics Registry August 2005 Full Copyright Statement Copyright © 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- ipr@ietf.org. Acknowledgement Funding for the RFC Editor function is currently provided by the Internet Society. Stephan Best Current Practice PAGE 14 top

IP Performance Metrics (IPPM) Metrics Registry RFC TOTAL SIZE: 23074 bytes PUBLICATION DATE: Thursday, August 4th, 2005 LEGAL RIGHTS: The IETF Trust (see BCP 78)


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