{
  "$schema": "/api/schemas/documents.schema.json",
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  "lastModified": "2026-10-20T21:12:53.311Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC3421",
  "document": {
    "abstract": "This document defines two extensions (Select and Sort) for the Service Location Protocol (SLP). These extensions allow a User Agent (UA) to request that the Uniform Resource Locator (URL) entries in a Service Reply (SrvRply) be limited to the specified number, or be sorted according to the specified sort key list. Using these two extensions together can facilitate discovering the best match, such as finding a service that has the maximum speed or the minimum load. This memo defines an Experimental Protocol for the Internet community.",
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      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
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      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "authors": [
      {
        "name": "Weibin Zhao"
      },
      {
        "name": "Henning Schulzrinne"
      },
      {
        "name": "Erik Guttman"
      },
      {
        "name": "Chatschik Bisdikian"
      },
      {
        "name": "William F. Jerome"
      }
    ],
    "authors$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/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docId": "RFC3421",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docLabel": "IETF RFC 3421",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docNumber": "3421",
    "docNumber$meta": {
      "confidence": "high",
      "note": "From the RFC index entry (rfc-index.xml <doc-id>)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docTitle": "Select and Sort Extensions for the Service Location Protocol (SLP)",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "docType": "Experimental",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "doi": "10.17487/RFC3421",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "href": "https://doi.org/10.17487/RFC3421",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "keywords": [
      "SLP",
      "User Agent",
      "URL"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "SLP",
        "User Agent",
        "URL",
        "Service Reply",
        "Svrrply"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T21:12:53.311Z",
      "version": "extractDocs.js@commit:2d729ed26f61"
    },
    "pages": "8",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publicationDate": "2002-11-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "references": {
      "normative": [
        "RFC2608",
        "RFC2119",
        "RFC2234",
        "RFC2891"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
        "updated": "2026-10-20T17:28:18.682Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc3421/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
      "updated": "2026-10-20T17:28:18.682Z",
      "version": "extractDocs.js@commit:8277ba975118"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
        "updated": "2026-10-20T17:28:18.682Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
        "updated": "2026-10-20T17:28:18.682Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
        "updated": "2026-10-20T17:28:18.682Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "statusNote": "Experimental",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
        "updated": "2026-10-20T17:28:18.682Z",
        "version": "extractDocs.js@commit:8277ba975118"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3421/",
        "updated": "2026-10-20T17:28:18.682Z",
        "version": "extractDocs.js@commit:8277ba975118"
      }
    }
  }
}