{
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    "abstract": "This document proposes an experiment to increase the permitted TCP initial window (IW) from between 2 and 4 segments, as specified in RFC 3390, to 10 segments with a fallback to the existing recommendation when performance issues are detected. It discusses the motivation behind the increase, the advantages and disadvantages of the higher initial window, and presents results from several large-scale experiments showing that the higher initial window improves the overall performance of many web services without resulting in a congestion collapse. The document closes with a discussion of usage and deployment for further experimental purposes recommended by the IETF TCP Maintenance and Minor Extensions (TCPM) working group.",
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    "authors": [
      {
        "name": "Jerry Chu"
      },
      {
        "name": "Nandita Dukkipati"
      },
      {
        "name": "Yuchung Cheng"
      },
      {
        "name": "Matt Mathis"
      }
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      "confidence": "high",
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      "updated": "2026-10-16T20:45:09.481Z",
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      "originalValue": null,
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      "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
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    "docLabel": "IETF RFC 6928",
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      "confidence": "high",
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      "originalValue": null,
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      "updated": "2026-10-16T20:45:09.480Z",
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    "docNumber": "6928",
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      "confidence": "high",
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      "updated": "2026-10-16T20:45:09.480Z",
      "version": "extractDocs.js@commit:2c3b1db1b97b"
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    "docTitle": "Increasing TCP's Initial Window",
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      "confidence": "high",
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      "updated": "2026-10-16T20:45:09.480Z",
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    },
    "doi": "10.17487/RFC6928",
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      "confidence": "high",
      "note": "Parsed from RFC index XML doi",
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      "source": "resolved",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
      "updated": "2026-10-16T20:45:09.481Z",
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    "href": "https://doi.org/10.17487/RFC6928",
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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/rfc6928/",
      "updated": "2026-10-16T20:45:09.480Z",
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    "pages": "24",
    "pages$meta": {
      "confidence": "high",
      "note": "Parsed from RFC index XML page-count",
      "originalValue": null,
      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
      "updated": "2026-10-16T20:45:09.481Z",
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    "publicationDate": "2013-04-01",
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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/rfc6928/",
      "updated": "2026-10-16T20:45:09.480Z",
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    },
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      "source": "parsed",
      "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
      "updated": "2026-10-16T20:45:09.480Z",
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      "bibliographic": [
        "RFC2309",
        "RFC2414",
        "RFC3042",
        "RFC3150",
        "RFC4782",
        "RFC6077",
        "10.1016-j.comnet.2011.02.002",
        "orphan/RFC6928/h:c71d79c9",
        "orphan/RFC6928/h:850f3523",
        "orphan/RFC6928/h:255b6963",
        "orphan/RFC6928/h:3f0953ba",
        "orphan/RFC6928/h:68b80099",
        "orphan/RFC6928/h:6c61f1fa",
        "orphan/RFC6928/h:7ac59262",
        "orphan/RFC6928/h:86f71daa",
        "orphan/RFC6928/h:974dc5a2",
        "orphan/RFC6928/h:53daa1fa",
        "orphan/RFC6928/h:65b691f7",
        "orphan/RFC6928/h:3dd8ef42",
        "orphan/RFC6928/h:ac46a2a2",
        "orphan/RFC6928/h:55904518",
        "orphan/RFC6928/h:07ae0858",
        "orphan/RFC6928/h:27ec2cfe",
        "orphan/RFC6928/h:d2d05b44",
        "orphan/RFC6928/h:e5544053",
        "orphan/RFC6928/h:7011328e",
        "orphan/RFC6928/h:3e9c902b",
        "orphan/RFC6928/h:eb23ac0d",
        "orphan/RFC6928/h:5e86953e",
        "orphan/RFC6928/h:a9fe3893",
        "orphan/RFC6928/h:6da49555",
        "orphan/RFC6928/h:05073b82",
        "orphan/RFC6928/h:a1581385",
        "orphan/RFC6928/h:64e889ee",
        "orphan/RFC6928/h:a8fa7bc3",
        "orphan/RFC6928/h:5ee116e7",
        "orphan/RFC6928/h:c606eb53",
        "orphan/RFC6928/h:659ca336"
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      },
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        "RFC2119",
        "RFC2616",
        "RFC3390",
        "RFC5681",
        "RFC5827",
        "RFC6298"
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        "confidence": "high",
        "note": "Parsed from RFC HTML normative references sections",
        "originalValue": [],
        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
        "updated": "2026-10-16T20:45:09.481Z",
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      "confidence": "high",
      "note": "Final URL resolved via URL redirect verification",
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      "source": "resolved",
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      "updated": "2026-10-16T20:45:09.481Z",
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        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
        "updated": "2026-10-16T20:45:09.481Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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      "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/rfc6928/",
        "updated": "2026-10-16T20:45:09.481Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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      "latestVersion": true,
      "latestVersion$meta": {
        "confidence": "high",
        "note": "Derived from supersession relationship fields",
        "originalValue": null,
        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
        "updated": "2026-10-16T20:45:09.481Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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        "confidence": "high",
        "note": "Mapped from Datatracker doc.json std_level",
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        "source": "parsed",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
        "updated": "2026-10-16T20:45:09.481Z",
        "version": "extractDocs.js@commit:2c3b1db1b97b"
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      "superseded$meta": {
        "confidence": "high",
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        "source": "resolved",
        "sourceUrl": "https://www.rfc-editor.org/info/rfc6928/",
        "updated": "2026-10-16T20:45:09.481Z",
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