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Metrics Framework draft-morton-perf-metrics-framework-02.txt

Metrics Framework draft-morton-perf-metrics-framework-02.txt. Authors: Alan Clark. Changes from 01 draft. Tidied up language in Sections 1-3 Added detail for metric specification/ template Added sections on results organization, parameters, audience. Introduction (1).

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Metrics Framework draft-morton-perf-metrics-framework-02.txt

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  1. Metrics Frameworkdraft-morton-perf-metrics-framework-02.txt Authors: Alan Clark IETF 71 - Philadelphia

  2. Changes from 01 draft • Tidied up language in Sections 1-3 • Added detail for metric specification/ template • Added sections on results organization, parameters, audience IETF 71 - Philadelphia

  3. Introduction (1) • Original paragraph focused too much on “uncertainties” • Replacement wording simply says that performance monitoring is important for distributed apps • 1.1, 1.2 – no changes IETF 71 - Philadelphia

  4. Purpose and Scope (2) • Updated to The purpose of this memo is to define a framework and a process for developing performance metrics for IP-based applications that operate over reliable or datagram transport protocols, and that can be used to characterize traffic on live networks and services. The scope of this memo includes the support of metric definition for any protocol developed by the IETF, however this memo is not intended to supercede existing working methods within WGs that have existing chartered work in this area. This process is not intended to govern performance metric development in existing IETF WG that are focused on metrics development, such as IPPM and BMWG. However, the framework and guidelines may be useful in these activities, and MAY be applied where appropriate. IETF 71 - Philadelphia

  5. Metrics Development (3) • Converted 3.1 – Audience – from a comment to text • Updated example of good vs weak metric at end of section 3.2 • 3.3 – temporarily removed details on composition of metrics – this is a fairly large and well established field and hence may need to refer to earlier work than ippm IETF 71 - Philadelphia

  6. Metric Specification (3.4) • Added section on metric specification • Normative parts • Name • Measurement method • Need for clear definition and consideration of exception conditions • Units of measurement • Timing of measurements • Measurement intervals/ sampling intervals • Informative parts • Description • Metric use and applications • Implementation • Reporting model • Metric definition template IETF 71 - Philadelphia

  7. Material added by Al Morton • Organization of results (3.9) • Singleton, Sample, Statistic • [ADC] – overlaps with Section 3.4.2 (iv)? • Parameters (3.10) • All options and input variables need to be identified and specified • [ADC] – overlaps with Section 3.4.2 (ii) • Packet measurement details (3.11) • Consider “wire time” when specifying timings • Identifying and categorizing the audience (3.12) • Consider who will use metrics and how • [ADC] - overlaps with Section 3.1 • Proposal Approval (4.2) IETF 71 - Philadelphia

  8. Next steps? • Existing text needs some consolidation (e.g. Sections 3.9 and 3.1) • Continue to add more details • Other suggestions? IETF 71 - Philadelphia

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