<!DOCTYPE html>
<html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-0 vector-toc-not-available vector-feature-main-menu-pinned-disabled vector-feature-limited-width-clientpref-1 vector-feature-limited-width-content-enabled vector-feature-custom-font-size-clientpref-1 vector-feature-appearance-pinned-clientpref-0 skin-theme-clientpref-day vector-sticky-header-enabled" lang="de" dir="ltr"><head>
<meta charset="UTF-8">
<title>Compression Control Protocol</title>
<meta name="viewport" content="width=device-width, initial-scale=1.0">
<link rel="icon" type="image/png" href="./_res_/favicon.png">
<link rel="canonical" href="https://de.wikipedia.org/wiki/Compression_Control_Protocol"> <link href="./_mw_/ext.cite.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.wikimediamessages.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.icons.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.search.codex.styles.css" rel="stylesheet" type="text/css">
<link href="./_mw_/skins.vector.styles.css" rel="stylesheet" type="text/css">
<meta name="ResourceLoaderDynamicStyles" content="">
<link href="./_mw_/ext.gadget.citeRef.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.defaultPlainlinks.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonHide.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonLayout.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiCommonStyle.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiDarkmode.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.dewikiResponsive.css" rel="stylesheet" type="text/css">
<link href="./_mw_/ext.gadget.specialSearch.css" rel="stylesheet" type="text/css">
<link rel="stylesheet" type="text/css" href="./_mw_/site.styles.css">
<link rel="stylesheet" type="text/css" href="./_mw_/noscript.css">
<link rel="stylesheet" type="text/css" href="./_res_/footer.css">
<link rel="stylesheet" type="text/css" href="./_res_/vector-2022.css">
</head>
<body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject page-Compression_Control_Protocol rootpage-Compression_Control_Protocol skin-vector-2022 action-view">
<div class="mw-page-container">
<div class="mw-page-container-inner">
<div class="mw-content-container">
<main id="content" class="mw-body">
<header class="mw-body-header vector-page-titlebar">
<h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">Compression Control Protocol</span></h1>
</header>
<a id="top"></a>
<div id="bodyContent" class="vector-body ve-init-mw-desktopArticleTarget-targetContainer" aria-labelledby="firstHeading" data-mw-ve-target-container="">
<div id="contentSub">
<div id="mw-content-subtitle"></div>
</div>
<div id="mw-content-text" class="mw-body-content mw-content-ltr" lang="de" dir="ltr"><div class="mw-content-ltr mw-parser-output" lang="de" dir="ltr"><p>Das <b>Compression Control Protocol</b> (<b>CCP</b>) ist ein <a href="Netzwerkprotokoll" title="Netzwerkprotokoll">Netzwerkprotokoll</a> und wird verwendet, um innerhalb einer <a href="Point-to-Point_Protocol" title="Point-to-Point Protocol">Point-to-Point Verbindung</a> (PPP) die <a href="Datenkompression" title="Datenkompression">Datenkompression</a> zwischen den Verbindungspartnern auszuhandeln. Die Spezifikation des CCP wurde mit RFC 1962 im Juni 1996 veröffentlicht<sup id="cite_ref-1" class="reference"><a href="#cite_note-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> und ist ein <a href="Internet_Engineering_Task_Force" title="Internet Engineering Task Force">IETF</a> Standard. Teile wurden mit dem RFC 2153 im Mai 1997 überarbeitet.<sup id="cite_ref-2" class="reference"><a href="#cite_note-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup>
</p>
<div class="mw-heading mw-heading2"><h2 id="Datenkompressions-Algorithmus">Datenkompressions-Algorithmus</h2></div>
<p>Die Datenkompressions-Algorithmen werden im CCP Option Typenfeld gewählt, diese sind z. B. STAC <a href="Lempel-Ziv-Stac-Algorithmus" title="Lempel-Ziv-Stac-Algorithmus">LZS</a> (CCP Option 17, RFC 1974<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup>), <a href="Microsoft_Point-To-Point_Encryption_Protocol" title="Microsoft Point-To-Point Encryption Protocol">MPPC</a> (CCP Option 18, RFC 2118<sup id="cite_ref-4" class="reference"><a href="#cite_note-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup>), V.42bis (CCP Option 20), BSD <a href="Lempel-Ziv-Welch-Algorithmus" title="Lempel-Ziv-Welch-Algorithmus">LZW</a> (CCP Option 21).
</p>
<div class="mw-heading mw-heading2"><h2 id="Check_Mode">Check Mode</h2></div>
<p>Die Datenkompressionsverfahren verwenden Daten aus der Vergangenheit, welche mit in die Kompression einbezogen werden und in einem verschiebbaren Datenfenster gespeichert werden. Um die Synchronisation der Datenfenster zwischen den Verbindungspartnern zu erhalten, wird ein Prüfungsverfahren („History check mode“) ausgehandelt. Dieser kann z. B. „sequential“ oder „extendend“ lauten. <a href="Microsoft_Windows" title="Microsoft Windows">Microsoft Windows</a> verwendet den „extended“ check mode.
</p><p>Gängige CCP-Verfahren sind:
</p>
<ul><li><b>None:</b> Keine Kompression.</li>
<li><b>STAC:</b> CCP Option 17, Check mode: sequential.</li>
<li><b>MS-STAC:</b> CCP Option 17, Check mode: Extended.</li>
<li><b>MPPC:</b> CCP Option 18, Check mode: Extended.</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Weblinks">Weblinks</h2></div>
<ul><li><i><a href="Request_for_Comments" title="Request for Comments">RFC</a>: <style data-mw-deduplicate="TemplateStyles:r250917974">
/* start https://de.wikipedia.org/ */
.mw-parser-output .dewiki-iconexternal>a{background-position:center right!important;background-repeat:no-repeat!important}body.skin-minerva .mw-parser-output .dewiki-iconexternal>a{background-image:url("./_mw_/OOjs_UI_icon_external-link-ltr-progressive.svg")!important;background-size:10px!important;padding-right:13px!important}body.skin-timeless .mw-parser-output .dewiki-iconexternal>a,body.skin-monobook .mw-parser-output .dewiki-iconexternal>a{background-image:url("./_mw_/MediaWiki_external_link_icon.svg")!important;padding-right:13px!important}body.skin-vector .mw-parser-output .dewiki-iconexternal>a{background-image:url("./_mw_/Link.ernal-small-ltr-progressive.svg")!important;background-size:0.857em!important;padding-right:1em!important}
/* end https://de.wikipedia.org/ */
</style><span class="dewiki-iconexternal"><a href="https://datatracker.ietf.org/doc/html/rfc1962" class="extiw external" title="rfc:1962">1962</a></span></i> – <i><span lang="en">The PPP Compression Control Protocol (CCP)</span></i>. Juni 1996 (englisch).</li></ul>
<div class="mw-heading mw-heading2"><h2 id="Einzelnachweise">Einzelnachweise</h2></div>
<ol class="references">
<li id="cite_note-1"><span class="mw-cite-backlink"><a href="#cite_ref-1">↑</a></span> <span class="reference-text"><i><a href="Request_for_Comments" title="Request for Comments">RFC</a>: <span class="dewiki-iconexternal"><a href="https://datatracker.ietf.org/doc/html/rfc1962" class="extiw external" title="rfc:1962">1962</a></span></i> – <i><span lang="en">The PPP Compression Control Protocol (CCP)</span></i>. Juni 1996 (englisch).</span>
</li>
<li id="cite_note-2"><span class="mw-cite-backlink"><a href="#cite_ref-2">↑</a></span> <span class="reference-text"><i><a href="Request_for_Comments" title="Request for Comments">RFC</a>: <span class="dewiki-iconexternal"><a href="https://datatracker.ietf.org/doc/html/rfc2153" class="extiw external" title="rfc:2153">2153</a></span></i> – <i><span lang="en">PPP Vendor Extensions</span></i>. Mai 1997 (englisch).</span>
</li>
<li id="cite_note-3"><span class="mw-cite-backlink"><a href="#cite_ref-3">↑</a></span> <span class="reference-text"><i><a href="Request_for_Comments" title="Request for Comments">RFC</a>: <span class="dewiki-iconexternal"><a href="https://datatracker.ietf.org/doc/html/rfc1974" class="extiw external" title="rfc:1974">1974</a></span></i> – <i><span lang="en">PPP Stac LZS Compression Protocol</span></i>. August 1996 (englisch).</span>
</li>
<li id="cite_note-4"><span class="mw-cite-backlink"><a href="#cite_ref-4">↑</a></span> <span class="reference-text"><i><a href="Request_for_Comments" title="Request for Comments">RFC</a>: <span class="dewiki-iconexternal"><a href="https://datatracker.ietf.org/doc/html/rfc2118" class="extiw external" title="rfc:2118">2118</a></span></i> – <i><span lang="en">Microsoft Point-To-Point Compression (MPPC) Protocol</span></i>. März 1997 (englisch).</span>
</li>
</ol></div><!--htdig_noindex--><div><div class="zim-footer">
Dieser Artikel wurde von <a class="external text" title="Zuletzt bearbeitet am 2024-08-22" href="https://de.wikipedia.org/wiki/?title=Compression_Control_Protocol&oldid=247951352">Wikipedia</a> herausgegeben. Der Text ist unter <a class="external text" href="https://creativecommons.org/licenses/by-sa/4.0/deed.de">Creative Commons Attribution-Share Alike 4.0</a> verfügbar, sofern nicht anders angegeben. Für die Mediendateien können zusätzliche Bedingungen gelten.
</div>
</div><!--/htdig_noindex--></div>
</div>
</main>
</div>
</div>
</div>
<script src="./_webp_/webpHandler.js"></script>
</body></html>