{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-16T19:30:56.308Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC5923",
  "document": {
    "abstract": "This document enables a pair of communicating proxies to reuse a congestion-controlled connection between themselves for sending requests in the forwards and backwards direction. Because the connection is essentially aliased for requests going in the backwards direction, reuse is predicated upon both the communicating endpoints authenticating themselves using X.509 certificates through Transport Layer Security (TLS). For this reason, we only consider connection reuse for TLS over TCP and TLS over Stream Control Transmission Protocol (SCTP). This document also provides guidelines on connection reuse and virtual SIP servers and the interaction of connection reuse and DNS SRV lookups in SIP. [STANDARDS-TRACK]",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "authors": [
      {
        "name": "Vijay K. Gurbani"
      },
      {
        "name": "Rohan Mahy"
      },
      {
        "name": "Brett Tate"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "docId": "RFC5923",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "docLabel": "IETF RFC 5923",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "docNumber": "5923",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "docTitle": "Connection Reuse in the Session Initiation Protocol (SIP)",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "doi": "10.17487/RFC5923",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "href": "https://doi.org/10.17487/RFC5923",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "keywords": [
      "TCP",
      "SCTP Connection",
      "TLS Connection",
      "Transport Connection",
      "TLS",
      "Virtual Server",
      "Authentication"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "TCP Connection",
        "SCTP Connection",
        "TLS Connection",
        "Transport Connection",
        "TLS",
        "Virtual Server",
        "Authentication"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T19:30:56.308Z",
      "version": "extractDocs.js@commit:75b379398159"
    },
    "pages": "19",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "publicationDate": "2010-06-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "references": {
      "bibliographic": [
        "RFC3968",
        "RFC5626",
        "ISBN.9780201615982",
        "RFC3725",
        "RFC4960"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=11 proseBlocks=15 skippedAnchorBlocks=12",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "normative": [
        "RFC3261",
        "RFC2119",
        "RFC5246",
        "RFC3263",
        "RFC5234",
        "RFC5922"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc5923/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
      "updated": "2026-10-16T18:56:22.196Z",
      "version": "extractDocs.js@commit:a6ae1efef02e"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc5923",
        "https://www.rfc-editor.org/errata_search.php?rfc=5923"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5923/",
        "updated": "2026-10-16T18:56:22.196Z",
        "version": "extractDocs.js@commit:a6ae1efef02e"
      }
    }
  }
}