IP Performance Metrics (IPPM): Spatial and Multicast
RFC 5644

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Network Working Group                                         E. Stephan
Request for Comments: 5644                                France Telecom
Category: Standards Track                                       L. Liang
                                                    University of Surrey
                                                               A. Morton
                                                               AT&T Labs
                                                            October 2009

          IP Performance Metrics (IPPM): Spatial and Multicast

Abstract

   The IETF has standardized IP Performance Metrics (IPPM) for measuring
   end-to-end performance between two points.  This memo defines two new
   categories of metrics that extend the coverage to multiple
   measurement points.  It defines spatial metrics for measuring the
   performance of segments of a source to destination path, and metrics
   for measuring the performance between a source and many destinations
   in multiparty communications (e.g., a multicast tree).

Status of This Memo

   This document specifies an Internet standards track protocol for the
   Internet community, and requests discussion and suggestions for
   improvements.  Please refer to the current edition of the "Internet
   Official Protocol Standards" (STD 1) for the standardization state
   and status of this protocol.  Distribution of this memo is unlimited.

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Stephan, et al.             Standards Track                     [Page 1]
RFC 5644             Spatial and Multicast Metrics          October 2009

   modifications of such material outside the IETF Standards Process.
   Without obtaining an adequate license from the person(s) controlling
   the copyright in such materials, this document may not be modified
   outside the IETF Standards Process, and derivative works of it may
   not be created outside the IETF Standards Process, except to format
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   than English.

Table of Contents

   1. Introduction and Scope ..........................................3
   2. Terminology .....................................................4
   3. Brief Metric Descriptions .......................................7
   4. Motivations ....................................................10
   5. Spatial Vector Metrics Definitions .............................12
   6. Spatial Segment Metrics Definitions ............................19
   7. One-to-Group Metrics Definitions ...............................27
   8. One-to-Group Sample Statistics .................................30
   9. Measurement Methods: Scalability and Reporting .................40
   10. Manageability Considerations ..................................44
   11. Security Considerations .......................................49
   12. Acknowledgments ...............................................50
   13. IANA Considerations ...........................................50
   14. References ....................................................56
      14.1. Normative References .....................................56
      14.2. Informative References ...................................57

Stephan, et al.             Standards Track                     [Page 2]
RFC 5644             Spatial and Multicast Metrics          October 2009

1.  Introduction and Scope

   IETF has standardized IP Performance Metrics (IPPM) for measuring
   end-to-end performance between two points.  This memo defines two new
   categories of metrics that extend the coverage to multiple
   measurement points.  It defines spatial metrics for measuring the
   performance of segments of a source to destination path, and metrics
   for measuring the performance between a source and many destinations
   in multiparty communications (e.g., a multicast tree).

   The purpose of this memo is to define metrics to fulfill the new
   requirements of measurement involving multiple measurement points.