{
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    "abstract": "This document specifies tests to determine if multiple independent instantiations of a performance-metric RFC have implemented the specifications in the same way. This is the performance-metric equivalent of interoperability, required to advance RFCs along the Standards Track. Results from different implementations of metric RFCs will be collected under the same underlying network conditions and compared using statistical methods. The goal is an evaluation of the metric RFC itself to determine whether its definitions are clear and unambiguous to implementors and therefore a candidate for advancement on the IETF Standards Track. This document is an Internet Best Current Practice.",
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    "authors": [
      {
        "name": "Ruediger Geib"
      },
      {
        "name": "Al Morton"
      },
      {
        "name": "Reza Fardid"
      },
      {
        "name": "Alexander Steinmitz"
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      "confidence": "high",
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      "updated": "2026-10-16T20:44:17.362Z",
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      "confidence": "high",
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      "originalValue": null,
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      "confidence": "high",
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      "source": "parsed",
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    "docTitle": "IP Performance Metrics (IPPM) Standard Advancement Testing",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
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      "updated": "2026-10-16T20:44:17.362Z",
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      "confidence": "high",
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    "doi": "10.17487/RFC6576",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
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      "source": "resolved",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
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      "updated": "2026-10-16T20:44:17.362Z",
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    "keywords": [
      "Interoperability",
      "Equivalence",
      "Measurement",
      "Compliance",
      "Metrics"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Inter-operability",
        "Equivalence",
        "Measurement",
        "Compliance",
        "Metrics"
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      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
      "updated": "2026-10-17T00:35:17.822Z",
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      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
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    },
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      "confidence": "high",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
      "updated": "2026-10-16T20:44:17.362Z",
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    },
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      "confidence": "high",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
      "updated": "2026-10-16T20:44:17.362Z",
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        "RFC4459",
        "RFC5357",
        "ISBN.3900051070",
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        "orphan/RFC6576/h:091f5840",
        "orphan/RFC6576/h:ce50ef19",
        "orphan/RFC6576/h:dc4f12bb"
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        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=24 proseBlocks=28 skippedAnchorBlocks=25",
        "note": "Parsed from RFC HTML references/informative sections",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
      },
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        "RFC2119",
        "RFC2330",
        "RFC2661",
        "RFC2679",
        "RFC2784",
        "RFC3931",
        "RFC4448",
        "RFC4656",
        "RFC4719",
        "RFC4928",
        "RFC5657",
        "RFC6410"
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        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
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        "source": "parsed",
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        "updated": "2026-10-16T20:44:17.362Z",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
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      "source": "resolved",
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      "updated": "2026-10-16T20:44:17.362Z",
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
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        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
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      "errataUrl": [
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        "https://www.rfc-editor.org/errata_search.php?rfc=6576",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc6576.html"
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        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
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      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
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        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6576/",
        "updated": "2026-10-16T20:44:17.362Z",
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