{
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    "abstract": "This document describes the method detecting a dead Internet Key Exchange (IKE) peer that is presently in use by a number of vendors. The method, called Dead Peer Detection (DPD) uses IPSec traffic patterns to minimize the number of IKE messages that are needed to confirm liveness. DPD, like other keepalive mechanisms, is needed to determine when to perform IKE peer failover, and to reclaim lost resources. This memo provides information for the Internet community.",
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      "confidence": "high",
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    "authors": [
      {
        "name": "Geoffrey Huang"
      },
      {
        "name": "Stephane Beaulieu"
      },
      {
        "name": "Dany Rochefort"
      }
    ],
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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      "updated": "2026-10-16T15:44:20.711Z",
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    "docId": "RFC3706",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
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    "docLabel": "IETF RFC 3706",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "docNumber": "3706",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "docTitle": "A Traffic-Based Method of Detecting Dead Internet Key Exchange (IKE) Peers",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "docType": "Informational",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "doi": "10.17487/RFC3706",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "href": "https://doi.org/10.17487/RFC3706",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "keywords": [
      "DPD",
      "Keepalive"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "Security Authentication",
        "Dead Peer Detection",
        "Dpd",
        "Keepalive"
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      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T16:56:12.474Z",
      "version": "extractDocs.js@commit:30d92d8ed083"
    },
    "pages": "13",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "publicationDate": "2004-02-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "references": {
      "bibliographic": [
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        "RFC2401"
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        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=3 proseBlocks=3 skippedAnchorBlocks=2",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc3706/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
      "updated": "2026-10-16T15:44:20.711Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "errataUrl": [
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        "https://www.rfc-editor.org/errata_search.php?rfc=3706"
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      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3706/",
        "updated": "2026-10-16T15:44:20.711Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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}