{
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    "abstract": "A range of Management Information Base (MIB) modules has been developed to help model and manage the various aspects of Multiprotocol Label Switching (MPLS) networks. These MIB modules are defined in separate documents that focus on the specific areas of responsibility of the modules that they describe. This document describes the management architecture for MPLS and indicates the interrelationships between the different MIB modules used for MPLS network management. This memo provides information for the Internet community.",
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    "authors": [
      {
        "name": "Thomas Nadeau"
      },
      {
        "name": "Cheenu Srinivasan"
      },
      {
        "name": "Adrian Farrel"
      }
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      "confidence": "high",
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      "updated": "2026-10-16T15:45:25.454Z",
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    "docId": "RFC4221",
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      "confidence": "high",
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.453Z",
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    "docLabel": "IETF RFC 4221",
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      "confidence": "high",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "docTitle": "Multiprotocol Label Switching (MPLS) Management Overview",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-16T15:45:25.454Z",
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
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      "updated": "2026-10-16T15:45:25.454Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "doi": "10.17487/RFC4221",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "href": "https://doi.org/10.17487/RFC4221",
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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/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "keywords": [
      "MIB",
      "Management Architecture",
      "Network Management"
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      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
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      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "publicationDate": "2005-11-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
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      "confidence": "high",
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      "source": "parsed",
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      "version": "extractDocs.js@commit:e0fe4a71cd26"
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        "RFC4110",
        "RFC3985",
        "RFC2026",
        "RFC2547",
        "RFC2578",
        "RFC2579",
        "RFC2580",
        "RFC3031",
        "RFC3036",
        "RFC3410",
        "RFC3413",
        "RFC3414",
        "RFC3415",
        "RFC3970",
        "orphan/RFC4221/h:f44121f1",
        "orphan/RFC4221/h:2fc5cbfb"
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      "bibliographic$meta": {
        "confidence": "medium",
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        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
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        "source": "parsed",
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        "version": "extractDocs.js@commit:e0fe4a71cd26"
      },
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        "RFC3814",
        "RFC3815",
        "RFC3813",
        "RFC2863",
        "RFC3289",
        "RFC3811",
        "RFC4220",
        "RFC3812"
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      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
        "updated": "2026-10-16T15:45:25.454Z",
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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/rfc4221/",
      "updated": "2026-10-16T15:45:25.454Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
        "updated": "2026-10-16T15:45:25.454Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "errataExist": false,
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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/rfc4221/",
        "updated": "2026-10-16T15:45:25.454Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
        "updated": "2026-10-16T15:45:25.454Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "statusNote": "Informational",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
        "updated": "2026-10-16T15:45:25.454Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4221/",
        "updated": "2026-10-16T15:45:25.454Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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}