{
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    "abstract": "OSPF is a link-state intra-domain routing protocol used in IP networks. Routers find new and detect unreachable neighbors via the Hello subprotocol. Hello OSPF packets are also used to ensure two-way connectivity within time. When a router restarts its OSPF software, it may not know its neighbors. If such a router sends a Hello packet on an interface, its neighbors are going to reset the adjacency, which may not be desirable in certain conditions. This memo describes a vendor-specific mechanism that allows OSPF routers to inform their neighbors about the restart process. Note that this mechanism requires support from neighboring routers. The mechanism described in this document was proposed before Graceful OSPF Restart, as described in RFC 3623, came into existence. It is implemented/supported by at least one major vendor and is currently deployed in the field. The purpose of this document is to capture the details of this mechanism for public use. This mechanism is not an IETF standard. This memo provides information for the Internet community.",
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      "version": "extractDocs.js@commit:a6ae1efef02e"
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    "authors": [
      {
        "name": "Liem Nguyen"
      },
      {
        "name": "Abhay Roy"
      },
      {
        "name": "Alex D. Zinin"
      }
    ],
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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      "updated": "2026-10-16T18:53:33.905Z",
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      "confidence": "high",
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      "originalValue": null,
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "docTitle": "OSPF Restart Signaling",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "doi": "10.17487/RFC4812",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
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    "href": "https://doi.org/10.17487/RFC4812",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
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    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "publicationDate": "2007-03-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
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      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
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        "RFC4811"
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      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=4 proseBlocks=7 skippedAnchorBlocks=5",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "normative": [
        "RFC2328",
        "RFC3623"
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        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4812/",
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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/rfc4812/",
      "updated": "2026-10-16T18:53:33.905Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
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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/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4812",
        "https://www.rfc-editor.org/errata_search.php?rfc=4812",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc4812.html"
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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/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
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      "superseded": false,
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4812/",
        "updated": "2026-10-16T18:53:33.905Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
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