{
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  "docId": "RFC9293",
  "document": {
    "abstract": "This document specifies the Transmission Control Protocol (TCP). TCP is an important transport-layer protocol in the Internet protocol stack, and it has continuously evolved over decades of use and growth of the Internet. Over this time, a number of changes have been made to TCP as it was specified in RFC 793, though these have only been documented in a piecemeal fashion. This document collects and brings those changes together with the protocol specification from RFC 793. This document obsoletes RFC 793, as well as RFCs 879, 2873, 6093, 6429, 6528, and 6691 that updated parts of RFC 793. It updates RFCs 1011 and 1122, and it should be considered as a replacement for the portions of those documents dealing with TCP requirements. It also updates RFC 5961 by adding a small clarification in reset handling while in the SYN-RECEIVED state. The TCP header control bits from RFC 793 have also been updated based on RFC 3168.",
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      "confidence": "high",
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    "authors": [
      {
        "name": "Wesley Eddy"
      }
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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    "docId": "RFC9293",
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      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
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    "docNumber": "9293",
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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/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docTitle": "Transmission Control Protocol (TCP)",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
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    "docType": "Standard",
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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/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "doi": "10.17487/RFC9293",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "href": "https://doi.org/10.17487/RFC9293",
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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/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "pages": "98",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publicationDate": "2022-08-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
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      "bibliographic": [
        "RFC793",
        "RFC896",
        "RFC1011",
        "RFC1122",
        "RFC1349",
        "RFC1644",
        "RFC2018",
        "RFC2525",
        "RFC2675",
        "RFC2873",
        "RFC2883",
        "RFC2923",
        "RFC3449",
        "RFC3465",
        "RFC4727",
        "RFC4821",
        "RFC4987",
        "RFC4953",
        "RFC5044",
        "RFC5461",
        "RFC5570",
        "RFC5795",
        "RFC5925",
        "RFC6093",
        "RFC6191",
        "RFC6429",
        "RFC6528",
        "RFC6691",
        "RFC6864",
        "RFC6994",
        "RFC7094",
        "RFC7323",
        "RFC7413",
        "RFC7414",
        "RFC7657",
        "RFC8087",
        "RFC8095",
        "RFC8303",
        "RFC8311",
        "RFC8504",
        "RFC8546",
        "RFC8548",
        "RFC8558",
        "RFC8684",
        "RFC9000",
        "RFC9065",
        "IETF.draft-gont-tcpm-tcp-seccomp-prec-00",
        "IETF.draft-gont-tcpm-tcp-seq-validation-04",
        "IETF.draft-ietf-tcpm-tcp-edo-12",
        "IETF.draft-mcquistin-augmented-ascii-diagrams-10",
        "RFC9170",
        "IETF.draft-minshall-nagle-01",
        "10.1016-0376-5075_78_90053-3",
        "10.1109-INFCOM.1999.752180",
        "ISI.IEN177",
        "RFC5927",
        "orphan/RFC9293/h:b003cb54",
        "orphan/RFC9293/h:bde55135"
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      "bibliographic$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
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        "RFC791",
        "RFC1191",
        "RFC2119",
        "RFC2474",
        "RFC2914",
        "RFC3168",
        "RFC5033",
        "RFC5681",
        "RFC5961",
        "RFC6298",
        "RFC6633",
        "RFC8174",
        "RFC8200",
        "RFC8201",
        "RFC8961"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc9293/",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
      "updated": "2026-10-13T18:25:26.974Z",
      "version": "extractDocs.js@commit:6d30695438dd"
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      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
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        "RFC1122",
        "RFC5961"
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      "amends$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataExist": true,
      "errataExist$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/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataUrl": [
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        "https://www.rfc-editor.org/errata_search.php?rfc=9293",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc9293.html",
        "https://www.rfc-editor.org/errata/eid573",
        "https://www.rfc-editor.org/errata/eid574",
        "https://www.rfc-editor.org/errata/eid700",
        "https://www.rfc-editor.org/errata/eid701",
        "https://www.rfc-editor.org/errata/eid1283",
        "https://www.rfc-editor.org/errata/eid1561",
        "https://www.rfc-editor.org/errata/eid1562",
        "https://www.rfc-editor.org/errata/eid1564",
        "https://www.rfc-editor.org/errata/eid1571",
        "https://www.rfc-editor.org/errata/eid1572",
        "https://www.rfc-editor.org/errata/eid2297",
        "https://www.rfc-editor.org/errata/eid2298",
        "https://www.rfc-editor.org/errata/eid2748",
        "https://www.rfc-editor.org/errata/eid2749",
        "https://www.rfc-editor.org/errata/eid2934",
        "https://www.rfc-editor.org/errata/eid3213",
        "https://www.rfc-editor.org/errata/eid3300",
        "https://www.rfc-editor.org/errata/eid3301",
        "https://www.rfc-editor.org/errata/eid6222",
        "https://www.rfc-editor.org/errata/eid572",
        "https://www.rfc-editor.org/errata/eid575",
        "https://www.rfc-editor.org/errata/eid1565",
        "https://www.rfc-editor.org/errata/eid1569",
        "https://www.rfc-editor.org/errata/eid2296",
        "https://www.rfc-editor.org/errata/eid3305",
        "https://www.rfc-editor.org/errata/eid3602",
        "https://www.rfc-editor.org/errata/eid4772"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "statusNote": "Internet Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "supersedes": [
        "RFC793",
        "RFC879",
        "RFC2873",
        "RFC6093",
        "RFC6429",
        "RFC6528",
        "RFC6691"
      ],
      "supersedes$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc9293/",
        "updated": "2026-10-13T18:25:26.974Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
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}