{
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  "sourcePath": "src/main/data/docs",
  "docId": "RFC4271",
  "document": {
    "abstract": "This document discusses the Border Gateway Protocol (BGP), which is an inter-Autonomous System routing protocol. The primary function of a BGP speaking system is to exchange network reachability information with other BGP systems. This network reachability information includes information on the list of Autonomous Systems (ASes) that reachability information traverses. This information is sufficient for constructing a graph of AS connectivity for this reachability from which routing loops may be pruned, and, at the AS level, some policy decisions may be enforced. BGP-4 provides a set of mechanisms for supporting Classless Inter-Domain Routing (CIDR). These mechanisms include support for advertising a set of destinations as an IP prefix, and eliminating the concept of network \"class\" within BGP. BGP-4 also introduces mechanisms that allow aggregation of routes, including aggregation of AS paths. This document obsoletes RFC 1771. [STANDARDS-TRACK]",
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      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "authors": [
      {
        "name": "Yakov Rekhter"
      },
      {
        "name": "Tony Li"
      },
      {
        "name": "Susan Hares"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docId": "RFC4271",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docLabel": "IETF RFC 4271",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docNumber": "4271",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docTitle": "A Border Gateway Protocol 4 (BGP-4)",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "doi": "10.17487/RFC4271",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "href": "https://doi.org/10.17487/RFC4271",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "keywords": [
      "BGP-4",
      "Routing"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "pages": "104",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "publicationDate": "2006-01-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "references": {
      "bibliographic": [
        "RFC904",
        "RFC1092",
        "RFC1093",
        "RFC1105",
        "RFC1163",
        "RFC1267",
        "RFC1771",
        "RFC1772",
        "RFC1518",
        "RFC1519",
        "RFC1930",
        "RFC1997",
        "RFC2439",
        "RFC2474",
        "RFC2796",
        "RFC2858",
        "RFC3392",
        "RFC2918",
        "RFC3065",
        "RFC3562",
        "ISO.8473",
        "RFC4272",
        "RFC4020"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=30 proseBlocks=32 skippedAnchorBlocks=30",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "normative": [
        "RFC791",
        "RFC793",
        "RFC2119",
        "RFC2385",
        "RFC2434"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4271/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
      "updated": "2026-10-13T17:22:41.459Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "amendedBy": [
        "RFC4724",
        "RFC6286",
        "RFC6608",
        "RFC6793",
        "RFC7606",
        "RFC7607",
        "RFC7705",
        "RFC8212",
        "RFC8654",
        "RFC9072",
        "RFC9687",
        "RFC9774"
      ],
      "amendedBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "errataExist": true,
      "errataExist$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/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc4271",
        "https://www.rfc-editor.org/errata_search.php?rfc=4271",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc4271.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "statusNote": "Draft Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "supersedes": [
        "RFC1771"
      ],
      "supersedes$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4271/",
        "updated": "2026-10-13T17:22:41.459Z",
        "version": "extractDocs.js@commit:996495349225"
      }
    }
  }
}