{
  "$schema": "/api/schemas/documents.schema.json",
  "apiVersion": "1.1.0",
  "lastModified": "2026-10-13T18:22:42.854Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC5696",
  "document": {
    "abstract": "The objective of the Pre-Congestion Notification (PCN) architecture is to protect the quality of service (QoS) of inelastic flows within a Diffserv domain. It achieves this by marking packets belonging to PCN-flows when the rate of traffic exceeds certain configured thresholds on links in the domain. These marks can then be evaluated to determine how close the domain is to being congested. This document specifies how such marks are encoded into the IP header by redefining the Explicit Congestion Notification (ECN) codepoints within such domains. The baseline encoding described here provides only two PCN encoding states: Not-marked and PCN-marked. Future extensions to this encoding may be needed in order to provide more than one level of marking severity. [STANDARDS-TRACK]",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "authors": [
      {
        "name": "T Moncaster"
      },
      {
        "name": "Bob Briscoe"
      },
      {
        "name": "Michael Menth"
      }
    ],
    "authors$meta": {
      "confidence": "high",
      "note": "Parsed from Datatracker doc page article:author (profile full names)",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docId": "RFC5696",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docLabel": "IETF RFC 5696",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docNumber": "5696",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docTitle": "Baseline Encoding and Transport of Pre-Congestion Information",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "docType": "Standard",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "doi": "10.17487/RFC5696",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "href": "https://doi.org/10.17487/RFC5696",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "keywords": [
      "Quality Of Service",
      "QoS",
      "DiffServ",
      "Admission Control",
      "Code Point",
      "Protocol"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "pages": "15",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publicationDate": "2009-11-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "references": {
      "bibliographic": [
        "RFC2474",
        "RFC2597",
        "RFC3246",
        "RFC3540",
        "RFC4301",
        "RFC4594",
        "RFC5127",
        "RFC5559",
        "orphan/RFC5696/h:c134ad02",
        "orphan/RFC5696/h:c8cfed7d"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=15 proseBlocks=18 skippedAnchorBlocks=16",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "normative": [
        "RFC2119",
        "RFC3168",
        "RFC4774",
        "RFC5670"
      ],
      "normative$meta": {
        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc5696/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
      "updated": "2026-10-13T18:22:42.854Z",
      "version": "extractDocs.js@commit:6d30695438dd"
    },
    "status": {
      "active": false,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataExist": true,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "errataUrl": [
        "https://www.rfc-editor.org/errata/rfc5696",
        "https://www.rfc-editor.org/errata_search.php?rfc=5696"
      ],
      "errataUrl$meta": {
        "confidence": "high",
        "note": "Parsed from errata links on RFC/Datatracker pages",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "latestVersion": false,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "statusNote": "Proposed Standard",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "superseded": true,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      },
      "supersededBy": [
        "RFC6660"
      ],
      "supersededBy$meta": {
        "confidence": "high",
        "note": "Parsed from RFC index XML",
        "originalValue": [],
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc5696/",
        "updated": "2026-10-13T18:22:42.854Z",
        "version": "extractDocs.js@commit:6d30695438dd"
      }
    }
  }
}