{
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  "apiVersion": "1.1.0",
  "lastModified": "2026-10-20T17:29:02.491Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC5572",
  "document": {
    "abstract": "A tunnel broker with the Tunnel Setup Protocol (TSP) enables the establishment of tunnels of various inner protocols, such as IPv6 or IPv4, inside various outer protocols packets, such as IPv4, IPv6, or UDP over IPv4 for IPv4 NAT traversal. The control protocol (TSP) is used by the tunnel client to negotiate the tunnel with the broker. A mobile node implementing TSP can be connected to both IPv4 and IPv6 networks whether it is on IPv4 only, IPv4 behind a NAT, or on IPv6 only. A tunnel broker may terminate the tunnels on remote tunnel servers or on itself. This document describes the TSP within the model of the tunnel broker model. This document defines an Experimental Protocol for the Internet community.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "authors": [
      {
        "name": "Marc Blanchet"
      },
      {
        "name": "Florent Parent"
      }
    ],
    "authors$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/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docId": "RFC5572",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docLabel": "IETF RFC 5572",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docNumber": "5572",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docTitle": "IPv6 Tunnel Broker with the Tunnel Setup Protocol (TSP)",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docType": "Experimental",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "doi": "10.17487/RFC5572",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "href": "https://doi.org/10.17487/RFC5572",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "keywords": [
      "IPv6",
      "Tunnel",
      "TSP"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "pages": "32",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publicationDate": "2010-02-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "references": {
      "bibliographic": [
        "RFC3053",
        "RFC3704",
        "RFC3904",
        "RFC3964",
        "RFC4057",
        "RFC5226",
        "ISBN.0131411551",
        "orphan/RFC5572/h:013ce1c0",
        "orphan/RFC5572/h:2d61506a"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=16 proseBlocks=21 skippedAnchorBlocks=18",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "normative": [
        "RFC2119",
        "RFC2473",
        "RFC2831",
        "RFC4213",
        "RFC4422",
        "RFC4443",
        "W3C.xml.20040204"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc5572/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
      "updated": "2026-10-20T17:29:02.491Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "errataExist": true,
      "errataExist$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/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc5572",
        "https://www.rfc-editor.org/errata_search.php?rfc=5572",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc5572.html"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "statusNote": "Experimental",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5572/",
        "updated": "2026-10-20T17:29:02.491Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    }
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}