{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-13T17:23:21.822Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC4540",
  "document": {
    "abstract": "This document describes a protocol for controlling middleboxes such as firewalls and network address translators. It is a fully compliant implementation of the Middlebox Communications (MIDCOM) semantics described in RFC 3989. Compared to earlier experimental versions of the SIMCO protocol, this version (3.0) uses binary message encodings in order to reduce resource requirements. This memo defines an Experimental Protocol for the Internet community.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "authors": [
      {
        "name": "Martin Stiemerling"
      },
      {
        "name": "Juergen Quittek"
      },
      {
        "name": "Cristian Cadar"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docId": "RFC4540",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docLabel": "IETF RFC 4540",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docNumber": "4540",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docTitle": "NEC's Simple Middlebox Configuration (SIMCO) Protocol Version 3.0",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "docType": "Experimental",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "doi": "10.17487/RFC4540",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "href": "https://doi.org/10.17487/RFC4540",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "keywords": [
      "MIDCOM"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "pages": "67",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "publicationDate": "2006-05-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "references": {
      "bibliographic": [
        "RFC791",
        "RFC1519",
        "RFC2460",
        "RFC2663",
        "RFC3234",
        "RFC3303",
        "RFC3424",
        "RFC3489",
        "RFC3932",
        "RFC4291",
        "RFC4306"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=15 proseBlocks=18 skippedAnchorBlocks=16",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "normative": [
        "RFC3989",
        "RFC4302",
        "RFC4303",
        "RFC4346"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc4540/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
      "updated": "2026-10-13T17:23:21.822Z",
      "version": "extractDocs.js@commit:996495349225"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "amendedBy": [
        "RFC8996"
      ],
      "amendedBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "errataExist": false,
      "errataExist$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/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      },
      "statusNote": "Experimental",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "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/rfc4540/",
        "updated": "2026-10-13T17:23:21.822Z",
        "version": "extractDocs.js@commit:996495349225"
      }
    }
  }
}