{
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    "abstract": "This memo describes the recommendations for Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) snooping switches. These are based on best current practices for IGMPv2, with further considerations for IGMPv3- and MLDv2-snooping. Additional areas of relevance, such as link layer topology changes and Ethernet-specific encapsulation issues, are also considered. This memo provides information for the Internet community.",
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    "authors": [
      {
        "name": "Morten Jagd Christensen"
      },
      {
        "name": "Karen Kimball"
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      {
        "name": "Frank T. Solensky"
      }
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      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
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      "confidence": "high",
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      "confidence": "high",
      "note": "Constructed from provider and document identifier",
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
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    "docNumber": "4541",
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      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
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      "updated": "2026-10-16T15:46:17.766Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "docTitle": "Considerations for Internet Group Management Protocol (IGMP) and Multicast Listener Discovery (MLD) Snooping Switches",
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      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
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      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-16T15:46:17.766Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "doi": "10.17487/RFC4541",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "href": "https://doi.org/10.17487/RFC4541",
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      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
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    "keywords": [
      "IGMP",
      "MLD"
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    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
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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/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
      "version": "extractDocs.js@commit:e0fe4a71cd26"
    },
    "publicationDate": "2006-05-01",
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      "confidence": "high",
      "note": "Parsed from RFC index XML date",
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
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      "confidence": "high",
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      "source": "parsed",
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      "updated": "2026-10-16T15:46:17.766Z",
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        "orphan/RFC4541/h:d64408a6"
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      "bibliographic$meta": {
        "confidence": "medium",
        "note": "Citations without a standard ID, kept as MRI orphan refs (or resolved once the reference label was stripped)",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
        "updated": "2026-10-16T15:48:09.406Z",
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        "RFC3376",
        "RFC3146",
        "RFC2464",
        "RFC2467",
        "RFC2470",
        "RFC2710",
        "RFC3810",
        "RFC4286",
        "RFC1112",
        "RFC2236",
        "RFC3307"
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        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
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    "resolvedHref": "https://www.rfc-editor.org/info/rfc4541/",
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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/rfc4541/",
      "updated": "2026-10-16T15:46:17.766Z",
      "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/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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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/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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      "errataUrl": [
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        "https://www.rfc-editor.org/errata_search.php?rfc=4541",
        "https://www.rfc-editor.org/rfc/inline-errata/rfc4541.html"
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        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
        "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/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
        "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/rfc4541/",
        "updated": "2026-10-16T15:46:17.766Z",
        "version": "extractDocs.js@commit:e0fe4a71cd26"
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