scope:

This document is intended for two different audiences:

1. For those preparing a candidate Performance Metric, it provides criteria that the proposal SHOULD meet (see Section 5). It also provides instructions for writing the text for each column of the candidate Performance Metric and the references required for the new Performance Metrics Registry Entry (up to and including the publication of one or more immutable documents such as an RFC) (see Section 7).

2. For the appointed Performance Metrics Experts and for IANA personnel administering the new IANA Performance Metrics Registry, it defines a set of acceptance criteria against which a candidate Registered Performance Metric should be evaluated, and requirements for the composition of a candidate Performance Metric Registry Entry.

Other organizations that standardize performance metrics are encouraged to use the process defined in this memo to propose a candidate Registered Performance Metric. In addition, this document may be useful for other organizations who are defining a Performance Metrics Registry of their own and may reuse the features of the Performance Metrics Registry defined in this document.

This Performance Metrics Registry is applicable to Performance Metrics derived from Active Measurement, Passive Measurement, and any other form of Performance Metric. This Registry is designed to encompass Performance Metrics developed throughout the IETF and especially for the technologies specified in the following working groups: IPPM, XRBLOCK, IPFIX, and BMWG. This document analyzes a prior attempt to set up a Performance Metrics Registry and the reasons why this design was inadequate [RFC6248].

[RFC8912] populates the new Registry with the initial set of entries.