{
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  "lastModified": "2026-10-12T20:48:13.023Z",
  "sourcePath": "src/main/data/docs",
  "docId": "RFC3540",
  "document": {
    "abstract": "This note describes the Explicit Congestion Notification (ECN)-nonce, an optional addition to ECN that protects against accidental or malicious concealment of marked packets from the TCP sender. It improves the robustness of congestion control by preventing receivers from exploiting ECN to gain an unfair share of network bandwidth. The ECN-nonce uses the two ECN-Capable Transport (ECT)codepoints in the ECN field of the IP header, and requires a flag in the TCP header. It is computationally efficient for both routers and hosts. This memo defines an Experimental Protocol for the Internet community.",
    "abstract$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML abstract",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "authors": [
      {
        "name": "Neil Spring"
      },
      {
        "name": "David Wetherall"
      },
      {
        "name": "David Ely"
      }
    ],
    "authors$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/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docId": "RFC3540",
    "docId$meta": {
      "confidence": "high",
      "note": "Derived from RFC number or Datatracker identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docLabel": "IETF RFC 3540",
    "docLabel$meta": {
      "confidence": "high",
      "note": "Constructed from provider and document identifier",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docNumber": "3540",
    "docNumber$meta": {
      "confidence": "high",
      "note": "Parsed from RFC info page report metadata",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docTitle": "Robust Explicit Congestion Notification (ECN) Signaling with Nonces",
    "docTitle$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML title",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "docType": "Specification",
    "docType$meta": {
      "confidence": "high",
      "note": "Mapped from Datatracker std_level or RFC status text",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "doi": "10.17487/RFC3540",
    "doi$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "href": "https://doi.org/10.17487/RFC3540",
    "href$meta": {
      "confidence": "high",
      "note": "Derived from DOI (https://doi.org/<doi>)",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "keywords": [
      "ECN",
      "TCP"
    ],
    "keywords$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML keywords",
      "originalValue": [
        "ECN",
        "Explicit Congestion Notification",
        "TCP"
      ],
      "overridden": true,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:48:13.023Z",
      "version": "extractDocs.js@commit:158b95d12c23"
    },
    "pages": "13",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "publicationDate": "2003-06-01",
    "publicationDate$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML date",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "publisher": "IETF",
    "publisher$meta": {
      "confidence": "high",
      "note": "Static: provider",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "references": {
      "bibliographic": [
        "RFC3168",
        "RFC2119",
        "ISBN.9780471117094",
        "orphan/RFC3540/h:22a3fa41",
        "orphan/RFC3540/h:c9416a42",
        "orphan/RFC3540/h:96d37e67"
      ],
      "bibliographic$meta": {
        "confidence": "medium",
        "flag": "MIXED_REF_LAYOUT_RISK anchored=6 proseBlocks=7 skippedAnchorBlocks=6",
        "note": "Parsed from RFC HTML references/informative sections",
        "originalValue": [],
        "reviewRequired": true,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
        "updated": "2026-10-12T20:13:34.014Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      }
    },
    "resolvedHref": "https://www.rfc-editor.org/info/rfc3540/",
    "resolvedHref$meta": {
      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
      "originalValue": null,
      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
      "updated": "2026-10-12T20:13:34.014Z",
      "version": "extractDocs.js@commit:00855ca34fe0"
    },
    "status": {
      "active": true,
      "active$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
        "updated": "2026-10-12T20:13:34.014Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "errataExist": false,
      "errataExist$meta": {
        "confidence": "high",
        "note": "Derived from presence of errata links on RFC/Datatracker pages",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
        "updated": "2026-10-12T20:13:34.014Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
        "updated": "2026-10-12T20:13:34.014Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "statusNote": "Historic",
      "statusNote$meta": {
        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
        "originalValue": null,
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
        "updated": "2026-10-12T20:13:34.014Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      },
      "superseded": false,
      "superseded$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc3540/",
        "updated": "2026-10-12T20:13:34.014Z",
        "version": "extractDocs.js@commit:00855ca34fe0"
      }
    }
  }
}