{
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    "abstract": "This document calls attention to the problem of delivering ICMPv6 type 2 \"Packet Too Big\" (PTB) messages to the intended destination (typically the server) in ECMP load-balanced or anycast network architectures. It discusses operational mitigations that can be employed to address this class of failures.",
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    "authors": [
      {
        "name": "Matt Byerly"
      },
      {
        "name": "Matt Hite"
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      {
        "name": "Joel Jaeggli"
      }
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
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      "confidence": "high",
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      "confidence": "high",
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      "originalValue": null,
      "source": "resolved",
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      "updated": "2026-10-22T01:45:32.605Z",
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    "docNumber": "7690",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
      "version": "extractDocs.js@commit:acc1bcda23fc"
    },
    "docTitle": "Close Encounters of the ICMP Type 2 Kind (Near Misses with ICMPv6 Packet Too Big (PTB))",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
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    "doi": "10.17487/RFC7690",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
      "version": "extractDocs.js@commit:acc1bcda23fc"
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
      "version": "extractDocs.js@commit:acc1bcda23fc"
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    "keywords": [
      "IPv6",
      "ICMPv6"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "IPv6",
        "ICMP6",
        "ICMPv6 Type 2 PTB"
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      "overridden": true,
      "source": "parsed",
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      "updated": "2026-10-22T15:11:26.694Z",
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    "pages": "9",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
      "version": "extractDocs.js@commit:acc1bcda23fc"
    },
    "publicationDate": "2016-01-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
      "version": "extractDocs.js@commit:acc1bcda23fc"
    },
    "publisher": "IETF",
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      "confidence": "high",
      "note": "Static: provider",
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      "source": "parsed",
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      "updated": "2026-10-22T01:45:32.605Z",
      "version": "extractDocs.js@commit:acc1bcda23fc"
    },
    "references": {
      "bibliographic": [
        "RFC1981",
        "RFC2991",
        "RFC4821",
        "RFC6555",
        "orphan/RFC7690/h:b7399328"
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      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=5 proseBlocks=7 skippedAnchorBlocks=6",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
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    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc7690/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
      "updated": "2026-10-22T01:45:32.605Z",
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
        "updated": "2026-10-22T01:45:32.605Z",
        "version": "extractDocs.js@commit:acc1bcda23fc"
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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/rfc7690/",
        "updated": "2026-10-22T01:45:32.605Z",
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      "latestVersion": true,
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
        "updated": "2026-10-22T01:45:32.605Z",
        "version": "extractDocs.js@commit:acc1bcda23fc"
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      "statusNote": "Informational",
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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/rfc7690/",
        "updated": "2026-10-22T01:45:32.605Z",
        "version": "extractDocs.js@commit:acc1bcda23fc"
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      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
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        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc7690/",
        "updated": "2026-10-22T01:45:32.605Z",
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}