CINXE.COM
IEEE 802.2 - Wikipedia
<!DOCTYPE html> <html class="client-nojs vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 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-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available" lang="en" dir="ltr"> <head> <meta charset="UTF-8"> <title>IEEE 802.2 - Wikipedia</title> <script>(function(){var className="client-js vector-feature-language-in-header-enabled vector-feature-language-in-main-page-header-disabled vector-feature-sticky-header-disabled vector-feature-page-tools-pinned-disabled vector-feature-toc-pinned-clientpref-1 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-1 vector-feature-night-mode-enabled skin-theme-clientpref-day vector-toc-available";var cookie=document.cookie.match(/(?:^|; )enwikimwclientpreferences=([^;]+)/);if(cookie){cookie[1].split('%2C').forEach(function(pref){className=className.replace(new RegExp('(^| )'+pref.replace(/-clientpref-\w+$|[^\w-]+/g,'')+'-clientpref-\\w+( |$)'),'$1'+pref+'$2');});}document.documentElement.className=className;}());RLCONF={"wgBreakFrames":false,"wgSeparatorTransformTable":["",""],"wgDigitTransformTable":["",""],"wgDefaultDateFormat":"dmy", "wgMonthNames":["","January","February","March","April","May","June","July","August","September","October","November","December"],"wgRequestId":"a5d13b97-1ace-4991-be63-af955d35ffe1","wgCanonicalNamespace":"","wgCanonicalSpecialPageName":false,"wgNamespaceNumber":0,"wgPageName":"IEEE_802.2","wgTitle":"IEEE 802.2","wgCurRevisionId":1258769291,"wgRevisionId":1258769291,"wgArticleId":15222,"wgIsArticle":true,"wgIsRedirect":false,"wgAction":"view","wgUserName":null,"wgUserGroups":["*"],"wgCategories":["CS1: long volume value","Articles with short description","Short description matches Wikidata","IEEE 802","Link protocols","Logical link control"],"wgPageViewLanguage":"en","wgPageContentLanguage":"en","wgPageContentModel":"wikitext","wgRelevantPageName":"IEEE_802.2","wgRelevantArticleId":15222,"wgIsProbablyEditable":true,"wgRelevantPageIsProbablyEditable":true,"wgRestrictionEdit":[],"wgRestrictionMove":[],"wgNoticeProject":"wikipedia","wgCiteReferencePreviewsActive":false, "wgFlaggedRevsParams":{"tags":{"status":{"levels":1}}},"wgMediaViewerOnClick":true,"wgMediaViewerEnabledByDefault":true,"wgPopupsFlags":0,"wgVisualEditor":{"pageLanguageCode":"en","pageLanguageDir":"ltr","pageVariantFallbacks":"en"},"wgMFDisplayWikibaseDescriptions":{"search":true,"watchlist":true,"tagline":false,"nearby":true},"wgWMESchemaEditAttemptStepOversample":false,"wgWMEPageLength":10000,"wgRelatedArticlesCompat":[],"wgCentralAuthMobileDomain":false,"wgEditSubmitButtonLabelPublish":true,"wgULSPosition":"interlanguage","wgULSisCompactLinksEnabled":false,"wgVector2022LanguageInHeader":true,"wgULSisLanguageSelectorEmpty":false,"wgWikibaseItemId":"Q965758","wgCheckUserClientHintsHeadersJsApi":["brands","architecture","bitness","fullVersionList","mobile","model","platform","platformVersion"],"GEHomepageSuggestedEditsEnableTopics":true,"wgGETopicsMatchModeEnabled":false,"wgGEStructuredTaskRejectionReasonTextInputEnabled":false,"wgGELevelingUpEnabledForUser":false};RLSTATE={ "ext.globalCssJs.user.styles":"ready","site.styles":"ready","user.styles":"ready","ext.globalCssJs.user":"ready","user":"ready","user.options":"loading","ext.cite.styles":"ready","skins.vector.search.codex.styles":"ready","skins.vector.styles":"ready","skins.vector.icons":"ready","jquery.makeCollapsible.styles":"ready","ext.wikimediamessages.styles":"ready","ext.visualEditor.desktopArticleTarget.noscript":"ready","ext.uls.interlanguage":"ready","wikibase.client.init":"ready","ext.wikimediaBadges":"ready"};RLPAGEMODULES=["ext.cite.ux-enhancements","site","mediawiki.page.ready","jquery.makeCollapsible","mediawiki.toc","skins.vector.js","ext.centralNotice.geoIP","ext.centralNotice.startUp","ext.gadget.ReferenceTooltips","ext.gadget.switcher","ext.urlShortener.toolbar","ext.centralauth.centralautologin","ext.popups","ext.visualEditor.desktopArticleTarget.init","ext.visualEditor.targetLoader","ext.echo.centralauth","ext.eventLogging","ext.wikimediaEvents","ext.navigationTiming", "ext.uls.interface","ext.cx.eventlogging.campaigns","ext.cx.uls.quick.actions","wikibase.client.vector-2022","ext.checkUser.clientHints","ext.growthExperiments.SuggestedEditSession","wikibase.sidebar.tracking"];</script> <script>(RLQ=window.RLQ||[]).push(function(){mw.loader.impl(function(){return["user.options@12s5i",function($,jQuery,require,module){mw.user.tokens.set({"patrolToken":"+\\","watchToken":"+\\","csrfToken":"+\\"}); }];});});</script> <link rel="stylesheet" href="/w/load.php?lang=en&modules=ext.cite.styles%7Cext.uls.interlanguage%7Cext.visualEditor.desktopArticleTarget.noscript%7Cext.wikimediaBadges%7Cext.wikimediamessages.styles%7Cjquery.makeCollapsible.styles%7Cskins.vector.icons%2Cstyles%7Cskins.vector.search.codex.styles%7Cwikibase.client.init&only=styles&skin=vector-2022"> <script async="" src="/w/load.php?lang=en&modules=startup&only=scripts&raw=1&skin=vector-2022"></script> <meta name="ResourceLoaderDynamicStyles" content=""> <link rel="stylesheet" href="/w/load.php?lang=en&modules=site.styles&only=styles&skin=vector-2022"> <meta name="generator" content="MediaWiki 1.44.0-wmf.4"> <meta name="referrer" content="origin"> <meta name="referrer" content="origin-when-cross-origin"> <meta name="robots" content="max-image-preview:standard"> <meta name="format-detection" content="telephone=no"> <meta name="viewport" content="width=1120"> <meta property="og:title" content="IEEE 802.2 - Wikipedia"> <meta property="og:type" content="website"> <link rel="alternate" media="only screen and (max-width: 640px)" href="//en.m.wikipedia.org/wiki/IEEE_802.2"> <link rel="alternate" type="application/x-wiki" title="Edit this page" href="/w/index.php?title=IEEE_802.2&action=edit"> <link rel="apple-touch-icon" href="/static/apple-touch/wikipedia.png"> <link rel="icon" href="/static/favicon/wikipedia.ico"> <link rel="search" type="application/opensearchdescription+xml" href="/w/rest.php/v1/search" title="Wikipedia (en)"> <link rel="EditURI" type="application/rsd+xml" href="//en.wikipedia.org/w/api.php?action=rsd"> <link rel="canonical" href="https://en.wikipedia.org/wiki/IEEE_802.2"> <link rel="license" href="https://creativecommons.org/licenses/by-sa/4.0/deed.en"> <link rel="alternate" type="application/atom+xml" title="Wikipedia Atom feed" href="/w/index.php?title=Special:RecentChanges&feed=atom"> <link rel="dns-prefetch" href="//meta.wikimedia.org" /> <link rel="dns-prefetch" href="//login.wikimedia.org"> </head> <body class="skin--responsive skin-vector skin-vector-search-vue mediawiki ltr sitedir-ltr mw-hide-empty-elt ns-0 ns-subject mw-editable page-IEEE_802_2 rootpage-IEEE_802_2 skin-vector-2022 action-view"><a class="mw-jump-link" href="#bodyContent">Jump to content</a> <div class="vector-header-container"> <header class="vector-header mw-header"> <div class="vector-header-start"> <nav class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-dropdown" class="vector-dropdown vector-main-menu-dropdown vector-button-flush-left vector-button-flush-right" > <input type="checkbox" id="vector-main-menu-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-main-menu-dropdown" class="vector-dropdown-checkbox " aria-label="Main menu" > <label id="vector-main-menu-dropdown-label" for="vector-main-menu-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-menu mw-ui-icon-wikimedia-menu"></span> <span class="vector-dropdown-label-text">Main menu</span> </label> <div class="vector-dropdown-content"> <div id="vector-main-menu-unpinned-container" class="vector-unpinned-container"> <div id="vector-main-menu" class="vector-main-menu vector-pinnable-element"> <div class="vector-pinnable-header vector-main-menu-pinnable-header vector-pinnable-header-unpinned" data-feature-name="main-menu-pinned" data-pinnable-element-id="vector-main-menu" data-pinned-container-id="vector-main-menu-pinned-container" data-unpinned-container-id="vector-main-menu-unpinned-container" > <div class="vector-pinnable-header-label">Main menu</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-main-menu.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-main-menu.unpin">hide</button> </div> <div id="p-navigation" class="vector-menu mw-portlet mw-portlet-navigation" > <div class="vector-menu-heading"> Navigation </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-mainpage-description" class="mw-list-item"><a href="/wiki/Main_Page" title="Visit the main page [z]" accesskey="z"><span>Main page</span></a></li><li id="n-contents" class="mw-list-item"><a href="/wiki/Wikipedia:Contents" title="Guides to browsing Wikipedia"><span>Contents</span></a></li><li id="n-currentevents" class="mw-list-item"><a href="/wiki/Portal:Current_events" title="Articles related to current events"><span>Current events</span></a></li><li id="n-randompage" class="mw-list-item"><a href="/wiki/Special:Random" title="Visit a randomly selected article [x]" accesskey="x"><span>Random article</span></a></li><li id="n-aboutsite" class="mw-list-item"><a href="/wiki/Wikipedia:About" title="Learn about Wikipedia and how it works"><span>About Wikipedia</span></a></li><li id="n-contactpage" class="mw-list-item"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us" title="How to contact Wikipedia"><span>Contact us</span></a></li> </ul> </div> </div> <div id="p-interaction" class="vector-menu mw-portlet mw-portlet-interaction" > <div class="vector-menu-heading"> Contribute </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="n-help" class="mw-list-item"><a href="/wiki/Help:Contents" title="Guidance on how to use and edit Wikipedia"><span>Help</span></a></li><li id="n-introduction" class="mw-list-item"><a href="/wiki/Help:Introduction" title="Learn how to edit Wikipedia"><span>Learn to edit</span></a></li><li id="n-portal" class="mw-list-item"><a href="/wiki/Wikipedia:Community_portal" title="The hub for editors"><span>Community portal</span></a></li><li id="n-recentchanges" class="mw-list-item"><a href="/wiki/Special:RecentChanges" title="A list of recent changes to Wikipedia [r]" accesskey="r"><span>Recent changes</span></a></li><li id="n-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_upload_wizard" title="Add images or other media for use on Wikipedia"><span>Upload file</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> <a href="/wiki/Main_Page" class="mw-logo"> <img class="mw-logo-icon" src="/static/images/icons/wikipedia.png" alt="" aria-hidden="true" height="50" width="50"> <span class="mw-logo-container skin-invert"> <img class="mw-logo-wordmark" alt="Wikipedia" src="/static/images/mobile/copyright/wikipedia-wordmark-en.svg" style="width: 7.5em; height: 1.125em;"> <img class="mw-logo-tagline" alt="The Free Encyclopedia" src="/static/images/mobile/copyright/wikipedia-tagline-en.svg" width="117" height="13" style="width: 7.3125em; height: 0.8125em;"> </span> </a> </div> <div class="vector-header-end"> <div id="p-search" role="search" class="vector-search-box-vue vector-search-box-collapses vector-search-box-show-thumbnail vector-search-box-auto-expand-width vector-search-box"> <a href="/wiki/Special:Search" class="cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only search-toggle" title="Search Wikipedia [f]" accesskey="f"><span class="vector-icon mw-ui-icon-search mw-ui-icon-wikimedia-search"></span> <span>Search</span> </a> <div class="vector-typeahead-search-container"> <div class="cdx-typeahead-search cdx-typeahead-search--show-thumbnail cdx-typeahead-search--auto-expand-width"> <form action="/w/index.php" id="searchform" class="cdx-search-input cdx-search-input--has-end-button"> <div id="simpleSearch" class="cdx-search-input__input-wrapper" data-search-loc="header-moved"> <div class="cdx-text-input cdx-text-input--has-start-icon"> <input class="cdx-text-input__input" type="search" name="search" placeholder="Search Wikipedia" aria-label="Search Wikipedia" autocapitalize="sentences" title="Search Wikipedia [f]" accesskey="f" id="searchInput" > <span class="cdx-text-input__icon cdx-text-input__start-icon"></span> </div> <input type="hidden" name="title" value="Special:Search"> </div> <button class="cdx-button cdx-search-input__end-button">Search</button> </form> </div> </div> </div> <nav class="vector-user-links vector-user-links-wide" aria-label="Personal tools"> <div class="vector-user-links-main"> <div id="p-vector-user-menu-preferences" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-userpage" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-dropdown" class="vector-dropdown " title="Change the appearance of the page's font size, width, and color" > <input type="checkbox" id="vector-appearance-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-appearance-dropdown" class="vector-dropdown-checkbox " aria-label="Appearance" > <label id="vector-appearance-dropdown-label" for="vector-appearance-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-appearance mw-ui-icon-wikimedia-appearance"></span> <span class="vector-dropdown-label-text">Appearance</span> </label> <div class="vector-dropdown-content"> <div id="vector-appearance-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <div id="p-vector-user-menu-notifications" class="vector-menu mw-portlet emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> <div id="p-vector-user-menu-overflow" class="vector-menu mw-portlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en" class=""><span>Donate</span></a> </li> <li id="pt-createaccount-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:CreateAccount&returnto=IEEE+802.2" title="You are encouraged to create an account and log in; however, it is not mandatory" class=""><span>Create account</span></a> </li> <li id="pt-login-2" class="user-links-collapsible-item mw-list-item user-links-collapsible-item"><a data-mw="interface" href="/w/index.php?title=Special:UserLogin&returnto=IEEE+802.2" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o" class=""><span>Log in</span></a> </li> </ul> </div> </div> </div> <div id="vector-user-links-dropdown" class="vector-dropdown vector-user-menu vector-button-flush-right vector-user-menu-logged-out" title="Log in and more options" > <input type="checkbox" id="vector-user-links-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-user-links-dropdown" class="vector-dropdown-checkbox " aria-label="Personal tools" > <label id="vector-user-links-dropdown-label" for="vector-user-links-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-ellipsis mw-ui-icon-wikimedia-ellipsis"></span> <span class="vector-dropdown-label-text">Personal tools</span> </label> <div class="vector-dropdown-content"> <div id="p-personal" class="vector-menu mw-portlet mw-portlet-personal user-links-collapsible-item" title="User menu" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-sitesupport" class="user-links-collapsible-item mw-list-item"><a href="https://donate.wikimedia.org/wiki/Special:FundraiserRedirector?utm_source=donate&utm_medium=sidebar&utm_campaign=C13_en.wikipedia.org&uselang=en"><span>Donate</span></a></li><li id="pt-createaccount" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:CreateAccount&returnto=IEEE+802.2" title="You are encouraged to create an account and log in; however, it is not mandatory"><span class="vector-icon mw-ui-icon-userAdd mw-ui-icon-wikimedia-userAdd"></span> <span>Create account</span></a></li><li id="pt-login" class="user-links-collapsible-item mw-list-item"><a href="/w/index.php?title=Special:UserLogin&returnto=IEEE+802.2" title="You're encouraged to log in; however, it's not mandatory. [o]" accesskey="o"><span class="vector-icon mw-ui-icon-logIn mw-ui-icon-wikimedia-logIn"></span> <span>Log in</span></a></li> </ul> </div> </div> <div id="p-user-menu-anon-editor" class="vector-menu mw-portlet mw-portlet-user-menu-anon-editor" > <div class="vector-menu-heading"> Pages for logged out editors <a href="/wiki/Help:Introduction" aria-label="Learn more about editing"><span>learn more</span></a> </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="pt-anoncontribs" class="mw-list-item"><a href="/wiki/Special:MyContributions" title="A list of edits made from this IP address [y]" accesskey="y"><span>Contributions</span></a></li><li id="pt-anontalk" class="mw-list-item"><a href="/wiki/Special:MyTalk" title="Discussion about edits from this IP address [n]" accesskey="n"><span>Talk</span></a></li> </ul> </div> </div> </div> </div> </nav> </div> </header> </div> <div class="mw-page-container"> <div class="mw-page-container-inner"> <div class="vector-sitenotice-container"> <div id="siteNotice"><!-- CentralNotice --></div> </div> <div class="vector-column-start"> <div class="vector-main-menu-container"> <div id="mw-navigation"> <nav id="mw-panel" class="vector-main-menu-landmark" aria-label="Site"> <div id="vector-main-menu-pinned-container" class="vector-pinned-container"> </div> </nav> </div> </div> <div class="vector-sticky-pinned-container"> <nav id="mw-panel-toc" aria-label="Contents" data-event-name="ui.sidebar-toc" class="mw-table-of-contents-container vector-toc-landmark"> <div id="vector-toc-pinned-container" class="vector-pinned-container"> <div id="vector-toc" class="vector-toc vector-pinnable-element"> <div class="vector-pinnable-header vector-toc-pinnable-header vector-pinnable-header-pinned" data-feature-name="toc-pinned" data-pinnable-element-id="vector-toc" > <h2 class="vector-pinnable-header-label">Contents</h2> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-toc.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-toc.unpin">hide</button> </div> <ul class="vector-toc-contents" id="mw-panel-toc-list"> <li id="toc-mw-content-text" class="vector-toc-list-item vector-toc-level-1"> <a href="#" class="vector-toc-link"> <div class="vector-toc-text">(Top)</div> </a> </li> <li id="toc-Operational_modes" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#Operational_modes"> <div class="vector-toc-text"> <span class="vector-toc-numb">1</span> <span>Operational modes</span> </div> </a> <ul id="toc-Operational_modes-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-LLC_header" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#LLC_header"> <div class="vector-toc-text"> <span class="vector-toc-numb">2</span> <span>LLC header</span> </div> </a> <button aria-controls="toc-LLC_header-sublist" class="cdx-button cdx-button--weight-quiet cdx-button--icon-only vector-toc-toggle"> <span class="vector-icon mw-ui-icon-wikimedia-expand"></span> <span>Toggle LLC header subsection</span> </button> <ul id="toc-LLC_header-sublist" class="vector-toc-list"> <li id="toc-LSAP_values" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#LSAP_values"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.1</span> <span>LSAP values</span> </div> </a> <ul id="toc-LSAP_values-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-IPv4,_IPX,_and_802.2_LLC" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#IPv4,_IPX,_and_802.2_LLC"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.2</span> <span>IPv4, IPX, and 802.2 LLC</span> </div> </a> <ul id="toc-IPv4,_IPX,_and_802.2_LLC-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-Control_Field" class="vector-toc-list-item vector-toc-level-2"> <a class="vector-toc-link" href="#Control_Field"> <div class="vector-toc-text"> <span class="vector-toc-numb">2.3</span> <span>Control Field</span> </div> </a> <ul id="toc-Control_Field-sublist" class="vector-toc-list"> </ul> </li> </ul> </li> <li id="toc-References" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#References"> <div class="vector-toc-text"> <span class="vector-toc-numb">3</span> <span>References</span> </div> </a> <ul id="toc-References-sublist" class="vector-toc-list"> </ul> </li> <li id="toc-External_links" class="vector-toc-list-item vector-toc-level-1 vector-toc-list-item-expanded"> <a class="vector-toc-link" href="#External_links"> <div class="vector-toc-text"> <span class="vector-toc-numb">4</span> <span>External links</span> </div> </a> <ul id="toc-External_links-sublist" class="vector-toc-list"> </ul> </li> </ul> </div> </div> </nav> </div> </div> <div class="mw-content-container"> <main id="content" class="mw-body"> <header class="mw-body-header vector-page-titlebar"> <nav aria-label="Contents" class="vector-toc-landmark"> <div id="vector-page-titlebar-toc" class="vector-dropdown vector-page-titlebar-toc vector-button-flush-left" > <input type="checkbox" id="vector-page-titlebar-toc-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-titlebar-toc" class="vector-dropdown-checkbox " aria-label="Toggle the table of contents" > <label id="vector-page-titlebar-toc-label" for="vector-page-titlebar-toc-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--icon-only " aria-hidden="true" ><span class="vector-icon mw-ui-icon-listBullet mw-ui-icon-wikimedia-listBullet"></span> <span class="vector-dropdown-label-text">Toggle the table of contents</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-titlebar-toc-unpinned-container" class="vector-unpinned-container"> </div> </div> </div> </nav> <h1 id="firstHeading" class="firstHeading mw-first-heading"><span class="mw-page-title-main">IEEE 802.2</span></h1> <div id="p-lang-btn" class="vector-dropdown mw-portlet mw-portlet-lang" > <input type="checkbox" id="p-lang-btn-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-p-lang-btn" class="vector-dropdown-checkbox mw-interlanguage-selector" aria-label="Go to an article in another language. Available in 11 languages" > <label id="p-lang-btn-label" for="p-lang-btn-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet cdx-button--action-progressive mw-portlet-lang-heading-11" aria-hidden="true" ><span class="vector-icon mw-ui-icon-language-progressive mw-ui-icon-wikimedia-language-progressive"></span> <span class="vector-dropdown-label-text">11 languages</span> </label> <div class="vector-dropdown-content"> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li class="interlanguage-link interwiki-ar mw-list-item"><a href="https://ar.wikipedia.org/wiki/%D8%A2%D9%8A_%D8%AA%D8%B1%D8%A8%D9%84_%D8%A5%D9%8A_802.2" title="آي تربل إي 802.2 – Arabic" lang="ar" hreflang="ar" data-title="آي تربل إي 802.2" data-language-autonym="العربية" data-language-local-name="Arabic" class="interlanguage-link-target"><span>العربية</span></a></li><li class="interlanguage-link interwiki-ca mw-list-item"><a href="https://ca.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Catalan" lang="ca" hreflang="ca" data-title="IEEE 802.2" data-language-autonym="Català" data-language-local-name="Catalan" class="interlanguage-link-target"><span>Català</span></a></li><li class="interlanguage-link interwiki-cs mw-list-item"><a href="https://cs.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Czech" lang="cs" hreflang="cs" data-title="IEEE 802.2" data-language-autonym="Čeština" data-language-local-name="Czech" class="interlanguage-link-target"><span>Čeština</span></a></li><li class="interlanguage-link interwiki-es mw-list-item"><a href="https://es.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Spanish" lang="es" hreflang="es" data-title="IEEE 802.2" data-language-autonym="Español" data-language-local-name="Spanish" class="interlanguage-link-target"><span>Español</span></a></li><li class="interlanguage-link interwiki-fr mw-list-item"><a href="https://fr.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – French" lang="fr" hreflang="fr" data-title="IEEE 802.2" data-language-autonym="Français" data-language-local-name="French" class="interlanguage-link-target"><span>Français</span></a></li><li class="interlanguage-link interwiki-ko mw-list-item"><a href="https://ko.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Korean" lang="ko" hreflang="ko" data-title="IEEE 802.2" data-language-autonym="한국어" data-language-local-name="Korean" class="interlanguage-link-target"><span>한국어</span></a></li><li class="interlanguage-link interwiki-it mw-list-item"><a href="https://it.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Italian" lang="it" hreflang="it" data-title="IEEE 802.2" data-language-autonym="Italiano" data-language-local-name="Italian" class="interlanguage-link-target"><span>Italiano</span></a></li><li class="interlanguage-link interwiki-ja mw-list-item"><a href="https://ja.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Japanese" lang="ja" hreflang="ja" data-title="IEEE 802.2" data-language-autonym="日本語" data-language-local-name="Japanese" class="interlanguage-link-target"><span>日本語</span></a></li><li class="interlanguage-link interwiki-pt mw-list-item"><a href="https://pt.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Portuguese" lang="pt" hreflang="pt" data-title="IEEE 802.2" data-language-autonym="Português" data-language-local-name="Portuguese" class="interlanguage-link-target"><span>Português</span></a></li><li class="interlanguage-link interwiki-ru mw-list-item"><a href="https://ru.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Russian" lang="ru" hreflang="ru" data-title="IEEE 802.2" data-language-autonym="Русский" data-language-local-name="Russian" class="interlanguage-link-target"><span>Русский</span></a></li><li class="interlanguage-link interwiki-zh mw-list-item"><a href="https://zh.wikipedia.org/wiki/IEEE_802.2" title="IEEE 802.2 – Chinese" lang="zh" hreflang="zh" data-title="IEEE 802.2" data-language-autonym="中文" data-language-local-name="Chinese" class="interlanguage-link-target"><span>中文</span></a></li> </ul> <div class="after-portlet after-portlet-lang"><span class="wb-langlinks-edit wb-langlinks-link"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q965758#sitelinks-wikipedia" title="Edit interlanguage links" class="wbc-editpage">Edit links</a></span></div> </div> </div> </div> </header> <div class="vector-page-toolbar"> <div class="vector-page-toolbar-container"> <div id="left-navigation"> <nav aria-label="Namespaces"> <div id="p-associated-pages" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-associated-pages" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-nstab-main" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/IEEE_802.2" title="View the content page [c]" accesskey="c"><span>Article</span></a></li><li id="ca-talk" class="vector-tab-noicon mw-list-item"><a href="/wiki/Talk:IEEE_802.2" rel="discussion" title="Discuss improvements to the content page [t]" accesskey="t"><span>Talk</span></a></li> </ul> </div> </div> <div id="vector-variants-dropdown" class="vector-dropdown emptyPortlet" > <input type="checkbox" id="vector-variants-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-variants-dropdown" class="vector-dropdown-checkbox " aria-label="Change language variant" > <label id="vector-variants-dropdown-label" for="vector-variants-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">English</span> </label> <div class="vector-dropdown-content"> <div id="p-variants" class="vector-menu mw-portlet mw-portlet-variants emptyPortlet" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> </ul> </div> </div> </div> </div> </nav> </div> <div id="right-navigation" class="vector-collapsible"> <nav aria-label="Views"> <div id="p-views" class="vector-menu vector-menu-tabs mw-portlet mw-portlet-views" > <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-view" class="selected vector-tab-noicon mw-list-item"><a href="/wiki/IEEE_802.2"><span>Read</span></a></li><li id="ca-edit" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=IEEE_802.2&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-history" class="vector-tab-noicon mw-list-item"><a href="/w/index.php?title=IEEE_802.2&action=history" title="Past revisions of this page [h]" accesskey="h"><span>View history</span></a></li> </ul> </div> </div> </nav> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-dropdown" class="vector-dropdown vector-page-tools-dropdown" > <input type="checkbox" id="vector-page-tools-dropdown-checkbox" role="button" aria-haspopup="true" data-event-name="ui.dropdown-vector-page-tools-dropdown" class="vector-dropdown-checkbox " aria-label="Tools" > <label id="vector-page-tools-dropdown-label" for="vector-page-tools-dropdown-checkbox" class="vector-dropdown-label cdx-button cdx-button--fake-button cdx-button--fake-button--enabled cdx-button--weight-quiet" aria-hidden="true" ><span class="vector-dropdown-label-text">Tools</span> </label> <div class="vector-dropdown-content"> <div id="vector-page-tools-unpinned-container" class="vector-unpinned-container"> <div id="vector-page-tools" class="vector-page-tools vector-pinnable-element"> <div class="vector-pinnable-header vector-page-tools-pinnable-header vector-pinnable-header-unpinned" data-feature-name="page-tools-pinned" data-pinnable-element-id="vector-page-tools" data-pinned-container-id="vector-page-tools-pinned-container" data-unpinned-container-id="vector-page-tools-unpinned-container" > <div class="vector-pinnable-header-label">Tools</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-page-tools.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-page-tools.unpin">hide</button> </div> <div id="p-cactions" class="vector-menu mw-portlet mw-portlet-cactions emptyPortlet vector-has-collapsible-items" title="More options" > <div class="vector-menu-heading"> Actions </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="ca-more-view" class="selected vector-more-collapsible-item mw-list-item"><a href="/wiki/IEEE_802.2"><span>Read</span></a></li><li id="ca-more-edit" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=IEEE_802.2&action=edit" title="Edit this page [e]" accesskey="e"><span>Edit</span></a></li><li id="ca-more-history" class="vector-more-collapsible-item mw-list-item"><a href="/w/index.php?title=IEEE_802.2&action=history"><span>View history</span></a></li> </ul> </div> </div> <div id="p-tb" class="vector-menu mw-portlet mw-portlet-tb" > <div class="vector-menu-heading"> General </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-whatlinkshere" class="mw-list-item"><a href="/wiki/Special:WhatLinksHere/IEEE_802.2" title="List of all English Wikipedia pages containing links to this page [j]" accesskey="j"><span>What links here</span></a></li><li id="t-recentchangeslinked" class="mw-list-item"><a href="/wiki/Special:RecentChangesLinked/IEEE_802.2" rel="nofollow" title="Recent changes in pages linked from this page [k]" accesskey="k"><span>Related changes</span></a></li><li id="t-upload" class="mw-list-item"><a href="/wiki/Wikipedia:File_Upload_Wizard" title="Upload files [u]" accesskey="u"><span>Upload file</span></a></li><li id="t-specialpages" class="mw-list-item"><a href="/wiki/Special:SpecialPages" title="A list of all special pages [q]" accesskey="q"><span>Special pages</span></a></li><li id="t-permalink" class="mw-list-item"><a href="/w/index.php?title=IEEE_802.2&oldid=1258769291" title="Permanent link to this revision of this page"><span>Permanent link</span></a></li><li id="t-info" class="mw-list-item"><a href="/w/index.php?title=IEEE_802.2&action=info" title="More information about this page"><span>Page information</span></a></li><li id="t-cite" class="mw-list-item"><a href="/w/index.php?title=Special:CiteThisPage&page=IEEE_802.2&id=1258769291&wpFormIdentifier=titleform" title="Information on how to cite this page"><span>Cite this page</span></a></li><li id="t-urlshortener" class="mw-list-item"><a href="/w/index.php?title=Special:UrlShortener&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FIEEE_802.2"><span>Get shortened URL</span></a></li><li id="t-urlshortener-qrcode" class="mw-list-item"><a href="/w/index.php?title=Special:QrCode&url=https%3A%2F%2Fen.wikipedia.org%2Fwiki%2FIEEE_802.2"><span>Download QR code</span></a></li> </ul> </div> </div> <div id="p-coll-print_export" class="vector-menu mw-portlet mw-portlet-coll-print_export" > <div class="vector-menu-heading"> Print/export </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="coll-download-as-rl" class="mw-list-item"><a href="/w/index.php?title=Special:DownloadAsPdf&page=IEEE_802.2&action=show-download-screen" title="Download this page as a PDF file"><span>Download as PDF</span></a></li><li id="t-print" class="mw-list-item"><a href="/w/index.php?title=IEEE_802.2&printable=yes" title="Printable version of this page [p]" accesskey="p"><span>Printable version</span></a></li> </ul> </div> </div> <div id="p-wikibase-otherprojects" class="vector-menu mw-portlet mw-portlet-wikibase-otherprojects" > <div class="vector-menu-heading"> In other projects </div> <div class="vector-menu-content"> <ul class="vector-menu-content-list"> <li id="t-wikibase" class="wb-otherproject-link wb-otherproject-wikibase-dataitem mw-list-item"><a href="https://www.wikidata.org/wiki/Special:EntityPage/Q965758" title="Structured data on this page hosted by Wikidata [g]" accesskey="g"><span>Wikidata item</span></a></li> </ul> </div> </div> </div> </div> </div> </div> </nav> </div> </div> </div> <div class="vector-column-end"> <div class="vector-sticky-pinned-container"> <nav class="vector-page-tools-landmark" aria-label="Page tools"> <div id="vector-page-tools-pinned-container" class="vector-pinned-container"> </div> </nav> <nav class="vector-appearance-landmark" aria-label="Appearance"> <div id="vector-appearance-pinned-container" class="vector-pinned-container"> <div id="vector-appearance" class="vector-appearance vector-pinnable-element"> <div class="vector-pinnable-header vector-appearance-pinnable-header vector-pinnable-header-pinned" data-feature-name="appearance-pinned" data-pinnable-element-id="vector-appearance" data-pinned-container-id="vector-appearance-pinned-container" data-unpinned-container-id="vector-appearance-unpinned-container" > <div class="vector-pinnable-header-label">Appearance</div> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-pin-button" data-event-name="pinnable-header.vector-appearance.pin">move to sidebar</button> <button class="vector-pinnable-header-toggle-button vector-pinnable-header-unpin-button" data-event-name="pinnable-header.vector-appearance.unpin">hide</button> </div> </div> </div> </nav> </div> </div> <div id="bodyContent" class="vector-body" aria-labelledby="firstHeading" data-mw-ve-target-container> <div class="vector-body-before-content"> <div class="mw-indicators"> </div> <div id="siteSub" class="noprint">From Wikipedia, the free encyclopedia</div> </div> <div id="contentSub"><div id="mw-content-subtitle"></div></div> <div id="mw-content-text" class="mw-body-content"><div class="mw-content-ltr mw-parser-output" lang="en" dir="ltr"><div class="shortdescription nomobile noexcerpt noprint searchaux" style="display:none">IEEE standard</div> <p><b>IEEE 802.2</b> is the original name of the <b>ISO/IEC 8802-2</b> <a href="/wiki/Technical_standard" title="Technical standard">standard</a> which defines <a href="/wiki/Logical_link_control" title="Logical link control">logical link control</a> (LLC) as the upper portion of the <a href="/wiki/Data_link_layer" title="Data link layer">data link layer</a> of the <a href="/wiki/OSI_Model" class="mw-redirect" title="OSI Model">OSI Model</a>.<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> The original standard developed by the <a href="/wiki/Institute_of_Electrical_and_Electronics_Engineers" title="Institute of Electrical and Electronics Engineers">Institute of Electrical and Electronics Engineers</a> (IEEE) in collaboration with the <a href="/wiki/American_National_Standards_Institute" title="American National Standards Institute">American National Standards Institute</a> (ANSI) was adopted by the <a href="/wiki/International_Organization_for_Standardization" title="International Organization for Standardization">International Organization for Standardization</a> (ISO) in 1998, but it remains an integral part of the family of <a href="/wiki/IEEE_802" title="IEEE 802">IEEE 802</a> standards for <a href="/wiki/Local_area_network" title="Local area network">local</a> and <a href="/wiki/Metropolitan_area_network" title="Metropolitan area network">metropolitan</a> networks. </p><p>LLC is a software component that provides a uniform interface to the user of the data link service, usually the <a href="/wiki/Network_layer" title="Network layer">network layer</a>. LLC may offer three types of services: </p> <ul><li>unacknowledged <a href="/wiki/Connectionless_communication" title="Connectionless communication">connectionless mode</a> services (mandatory);</li> <li><a href="/wiki/Connection-oriented_communication" title="Connection-oriented communication">connection mode</a> services (optional);</li> <li>acknowledged <a href="/wiki/Connectionless_communication" title="Connectionless communication">connectionless mode</a> services (optional).</li></ul> <p>The LLC uses the services of the <a href="/wiki/Media_access_control" class="mw-redirect" title="Media access control">media access control</a> (MAC), which is dependent on the specific transmission medium (<a href="/wiki/Ethernet" title="Ethernet">Ethernet</a>, <a href="/wiki/Token_Ring" title="Token Ring">Token Ring</a>, <a href="/wiki/Fiber_Distributed_Data_Interface" title="Fiber Distributed Data Interface">FDDI</a>, <a href="/wiki/802.11" class="mw-redirect" title="802.11">802.11</a>, etc.). Using LLC is compulsory for all <a href="/wiki/IEEE_802" title="IEEE 802">IEEE 802</a> networks with the exception of <a href="/wiki/Ethernet" title="Ethernet">Ethernet</a>. It is also used in <a href="/wiki/Fiber_Distributed_Data_Interface" title="Fiber Distributed Data Interface">Fiber Distributed Data Interface</a> (FDDI) which is not part of the <a href="/wiki/IEEE_802" title="IEEE 802">IEEE 802</a> family. </p><p>The IEEE 802.2 sublayer adds some control information to the message created by the upper layer and passed to the LLC for transmission to another node on the same data link. The resulting packet is generally referred to as <i>LLC <a href="/wiki/Protocol_data_unit" title="Protocol data unit">protocol data unit</a> (PDU)</i> and the additional information added by the LLC sublayer is the <i>LLC HEADER</i>. The LLC Header consist of <i>DSAP</i> (<i>Destination <a href="/wiki/Service_Access_Point" title="Service Access Point">Service Access Point</a></i>), <i>SSAP</i> (<i>Source <a href="/wiki/Service_Access_Point" title="Service Access Point">Service Access Point</a></i>) and the <i>Control</i> field. </p><p>The two 8-bit fields DSAP and SSAP allow multiplexing of various upper layer protocols above LLC. However, many protocols use the <a href="/wiki/Subnetwork_Access_Protocol" title="Subnetwork Access Protocol">Subnetwork Access Protocol</a> (SNAP) extension which allows using <a href="/wiki/EtherType" title="EtherType">EtherType</a> values to specify the protocol being transported atop IEEE 802.2. It also allows vendors to define their own protocol value spaces. </p><p>The 8 or 16 bit <a href="/wiki/HDLC" class="mw-redirect" title="HDLC">HDLC</a>-style Control field serves to distinguish communication mode, to specify a specific operation and to facilitate connection control and <a href="/wiki/Flow_control_(data)" title="Flow control (data)">flow control</a> (in connection mode) or <a href="/wiki/Acknowledgement_(data_networks)" title="Acknowledgement (data networks)">acknowledgements</a> (in acknowledged connectionless mode). </p> <meta property="mw:PageProp/toc" /> <div class="mw-heading mw-heading2"><h2 id="Operational_modes">Operational modes</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=1" title="Edit section: Operational modes"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>IEEE 802.2 provides two <a href="/wiki/Connectionless_mode_transmission" class="mw-redirect" title="Connectionless mode transmission">connectionless</a> and one connection-oriented operational modes: </p> <ul><li><b>Type 1</b> is an unacknowledged connectionless mode for a <a href="/wiki/Datagram" title="Datagram">datagram</a> service. It allows for sending frames <ul><li>to a single destination (<a href="/wiki/Point-to-point_(network_topology)" class="mw-redirect" title="Point-to-point (network topology)">point-to-point</a> or <a href="/wiki/Unicast" title="Unicast">unicast</a> transfer);</li> <li>to multiple destinations on the same network (<a href="/wiki/Multicast" title="Multicast">multicast</a>);</li> <li>or to all stations of the network (<a href="/wiki/Broadcast" class="mw-redirect" title="Broadcast">broadcast</a>).</li></ul></li></ul> <p>The use of multicasts and broadcasts reduces network traffic when the same information needs to be propagated to all stations of the network. However the Type 1 service provides no guarantees regarding the order of the received frames compared to the order in which they have been sent; the sender does not even get an acknowledgment that the frames have been received. </p> <ul><li><b>Type 2</b> is a <a href="/wiki/Connection-oriented" class="mw-redirect" title="Connection-oriented">connection-oriented</a> operational mode. Sequence numbering ensures that the frames received are guaranteed to be in the order they have been sent, and no frames are lost.</li> <li><b>Type 3</b> is an acknowledged <a href="/wiki/Connectionless_mode_transmission" class="mw-redirect" title="Connectionless mode transmission">connectionless</a> service. It supports point-to-point communication only.</li></ul> <p>Each device conforming to the IEEE 802.2 standard must support service type 1. Each network node is assigned an <b>LLC Class</b> according to which service types it supports: </p> <table class="wikitable"> <tbody><tr> <th rowspan="2">LLC<br />Class </th> <th colspan="3">Supported Service Types </th></tr> <tr> <th style="text-align:center;">1 </th> <th style="text-align:center;">2 </th> <th style="text-align:center;">3 </th></tr> <tr> <td style="text-align:center;">I </td> <td style="text-align:center;">X </td> <td> </td> <td> </td></tr> <tr> <td style="text-align:center;">II </td> <td style="text-align:center;">X </td> <td style="text-align:center;">X </td> <td> </td></tr> <tr> <td style="text-align:center;">III </td> <td style="text-align:center;">X </td> <td> </td> <td style="text-align:center;">X </td></tr> <tr> <td style="text-align:center;">IV </td> <td style="text-align:center;">X </td> <td style="text-align:center;">X </td> <td style="text-align:center;">X </td></tr></tbody></table> <div class="mw-heading mw-heading2"><h2 id="LLC_header">LLC header</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=2" title="Edit section: LLC header"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Any 802.2 LLC PDU has the following format: </p> <table class="wikitable"> <tbody><tr> <th colspan="3">802.2 LLC Header </th> <th rowspan="2">Information </th></tr> <tr> <th>DSAP address </th> <th>SSAP address </th> <th>Control </th></tr> <tr> <td>8 bits </td> <td>8 bits </td> <td>8 or 16 bits </td> <td>multiple of 8 bits </td></tr></tbody></table> <p>When <a href="/wiki/Subnetwork_Access_Protocol" title="Subnetwork Access Protocol">Subnetwork Access Protocol</a> (SNAP) extension is used, it is located at the start of the Information field: </p> <table class="wikitable"> <tbody><tr> <th colspan="3">802.2 LLC Header </th> <th colspan="2">SNAP extension </th> <th rowspan="2">Upper layer data </th></tr> <tr> <th>DSAP </th> <th>SSAP </th> <th>Control </th> <th>OUI </th> <th>Protocol ID </th></tr> <tr> <td>8 bits </td> <td>8 bits </td> <td>8 or 16 bits </td> <td>24 bits </td> <td style="text-align:center;">16 bits </td> <td>multiple of 8 bits </td></tr></tbody></table> <p>The 802.2 header includes two eight-bit address fields, called <b><a href="/wiki/Service_access_point" class="mw-redirect" title="Service access point">service access points</a></b> (SAP) or collectively LSAP in the OSI terminology: </p> <ul><li>SSAP (Source SAP) is an 8-bit long field that represents the logical address of the network layer entity that has created the message.</li> <li>DSAP (Destination SAP) is an 8-bit long field that represents the logical addresses of the network layer entity intended to receive the message.</li></ul> <div class="mw-heading mw-heading3"><h3 id="LSAP_values">LSAP values</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=3" title="Edit section: LSAP values"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Although the LSAP fields are 8 bits long, the low-order bit is reserved for special purposes, leaving only 128 values available for most purposes. </p><p>The low-order bit of the DSAP indicates whether it contains an individual or a group address: </p> <ul><li>If the low-order bit is 0, the remaining 7 bits of the DSAP specify an individual address, which refers to a single local service access point (LSAP) to which the packet should be delivered.</li> <li>If the low-order bit is 1, the remaining 7 bits of the DSAP specify a group address, which refers to a group of LSAPs to which the packet should be delivered.</li></ul> <p>The low-order bit of the SSAP indicates whether the packet is a command or response packet: </p> <ul><li>If it's 0, the packet is a command packet.</li> <li>If it's 1, the packet is a response packet.</li></ul> <p>The remaining 7 bits of the SSAP specify the LSAP (always an individual address) from which the packet was transmitted. </p><p>LSAP numbers are globally assigned by the IEEE to uniquely identify well established international standards. </p> <table class="wikitable"> <caption>Individual LSAP addresses </caption> <tbody><tr> <th colspan="2">Value </th> <th rowspan="2">Meaning </th></tr> <tr> <th>Dec</th> <th>Hex </th></tr> <tr> <td>0</td> <td>00</td> <td>Null LSAP<sup id="cite_ref-rfc1700_2-0" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-0" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>2</td> <td>02</td> <td>Individual <a href="/wiki/Logical_link_control" title="Logical link control">LLC Sublayer</a> Mgt<sup id="cite_ref-rfc1700_2-1" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-1" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>4</td> <td>04</td> <td><a href="/wiki/Systems_Network_Architecture" title="Systems Network Architecture">SNA</a> Path Control (individual)<sup id="cite_ref-rfc1700_2-2" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-2" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>6</td> <td>06</td> <td>Reserved for DoD <a href="/wiki/Internet_Protocol" title="Internet Protocol">IP</a><sup id="cite_ref-rfc1700_2-3" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>14</td> <td>0E</td> <td>ProWay-LAN<sup id="cite_ref-rfc1700_2-4" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-3" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>24</td> <td>18</td> <td><a href="/wiki/Texas_Instruments" title="Texas Instruments">Texas Instruments</a><sup id="cite_ref-LAN_tech_3-4" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>66</td> <td>42</td> <td>IEEE 802.1 Bridge Spanning Tree Protocol<sup id="cite_ref-LAN_tech_3-5" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>78</td> <td>4E</td> <td>EIA-RS 511<sup id="cite_ref-rfc1700_2-5" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-6" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>94</td> <td>5E</td> <td>ISI IP<sup id="cite_ref-rfc1700_2-6" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>126</td> <td>7E</td> <td>ISO 8208 (<a href="/wiki/X.25" title="X.25">X.25</a> over IEEE 802.2 Type LLC)<sup id="cite_ref-LAN_tech_3-7" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>128</td> <td>80</td> <td>Xerox Network Systems (XNS)<sup id="cite_ref-LAN_tech_3-8" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>130</td> <td>82</td> <td>BACnet/Ethernet<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> </td></tr> <tr> <td>134</td> <td>86</td> <td>Nestar<sup id="cite_ref-LAN_tech_3-9" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>142</td> <td>8E</td> <td>ProWay-LAN (IEC 955)<sup id="cite_ref-rfc1700_2-7" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-10" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>152</td> <td>98</td> <td>ARPANET Address Resolution Protocol (ARP)<sup id="cite_ref-LAN_tech_3-11" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>166</td> <td>A6</td> <td>RDE (route determination entity) </td></tr> <tr> <td>170</td> <td>AA</td> <td><a href="/wiki/Subnetwork_Access_Protocol" title="Subnetwork Access Protocol">SNAP</a> Extension Used<sup id="cite_ref-rfc1700_2-8" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-12" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>188</td> <td>BC</td> <td><a href="/wiki/Banyan_VINES" title="Banyan VINES">Banyan VINES</a><sup id="cite_ref-LAN_tech_3-13" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>224</td> <td>E0</td> <td><a href="/wiki/Novell_NetWare" class="mw-redirect" title="Novell NetWare">Novell NetWare</a><sup id="cite_ref-LAN_tech_3-14" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>240</td> <td>F0</td> <td><a href="/wiki/IBM" title="IBM">IBM</a> <a href="/wiki/NetBIOS" title="NetBIOS">NetBIOS</a><sup id="cite_ref-LAN_tech_3-15" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>244</td> <td>F4</td> <td><a href="/wiki/IBM" title="IBM">IBM</a> LAN Management (individual)<sup id="cite_ref-LAN_tech_3-16" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>248</td> <td>F8</td> <td><a href="/wiki/IBM" title="IBM">IBM</a> Remote Program Load (RPL)<sup id="cite_ref-LAN_tech_3-17" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>250</td> <td>FA</td> <td>Ungermann-Bass<sup id="cite_ref-LAN_tech_3-18" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>254</td> <td>FE</td> <td>OSI <a href="/wiki/Connectionless-mode_Network_Service" title="Connectionless-mode Network Service">Connectionless-mode Network Service</a>:<sup id="cite_ref-LAN_tech_3-19" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> CLNP,<sup id="cite_ref-5" class="reference"><a href="#cite_note-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> ISIS,<sup id="cite_ref-6" class="reference"><a href="#cite_note-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> ESIS<sup id="cite_ref-7" class="reference"><a href="#cite_note-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <table class="wikitable"> <caption>Group DSAP addresses (not valid for SSAP) </caption> <tbody><tr> <th colspan="2">Value </th> <th rowspan="2">Meaning </th></tr> <tr> <th>Dec</th> <th>Hex </th></tr> <tr> <td>3</td> <td>03</td> <td>Group <a href="/wiki/Logical_link_control" title="Logical link control">LLC Sublayer</a> Mgt<sup id="cite_ref-rfc1700_2-9" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-20" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>5</td> <td>05</td> <td><a href="/wiki/Systems_Network_Architecture" title="Systems Network Architecture">SNA</a> Path Control (group)<sup id="cite_ref-LAN_tech_3-21" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>245</td> <td>F5</td> <td><a href="/wiki/IBM" title="IBM">IBM</a> LAN Management (group)<sup id="cite_ref-LAN_tech_3-22" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr> <tr> <td>255</td> <td>FF</td> <td>Global DSAP (broadcast to all)<sup id="cite_ref-rfc1700_2-10" class="reference"><a href="#cite_note-rfc1700-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-LAN_tech_3-23" class="reference"><a href="#cite_note-LAN_tech-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> </td></tr></tbody></table> <p>The protocols or families of protocols which have assigned one or more SAPs may operate directly on top of 802.2 LLC. Other protocols may use the <a href="/wiki/Subnetwork_Access_Protocol" title="Subnetwork Access Protocol">Subnetwork Access Protocol</a> (SNAP) with IEEE 802.2 which is indicated by the hexadecimal value 0xAA (or 0xAB, if the source of a response) in SSAP and DSAP. The SNAP extension allows using <a href="/wiki/EtherType" title="EtherType">EtherType</a> values or private protocol ID spaces in all <a href="/wiki/IEEE_802" title="IEEE 802">IEEE 802</a> networks. It can be used both in datagram and in connection-oriented network services. </p><p><a href="/wiki/Ethernet" title="Ethernet">Ethernet</a> (<a href="/wiki/IEEE_802.3" title="IEEE 802.3">IEEE 802.3</a>) networks are an exception; the IEEE 802.3x-1997 standard explicitly allowed using of the <a href="/wiki/Ethernet_II_framing" class="mw-redirect" title="Ethernet II framing">Ethernet II framing</a>, where the 16-bit field after the MAC addresses does not carry the length of the frame followed by the IEEE 802.2 LLC header, but the <a href="/wiki/EtherType" title="EtherType">EtherType</a> value followed by the upper layer data. With this framing only datagram services are supported on the <a href="/wiki/Data_link_layer" title="Data link layer">data link layer</a>. </p> <div class="mw-heading mw-heading3"><h3 id="IPv4,_IPX,_and_802.2_LLC"><span id="IPv4.2C_IPX.2C_and_802.2_LLC"></span>IPv4, IPX, and 802.2 LLC</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=4" title="Edit section: IPv4, IPX, and 802.2 LLC"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Although <a href="/wiki/IPv4" title="IPv4">IPv4</a> has been assigned an LSAP value of 6 (0x06) and <a href="/wiki/Address_Resolution_Protocol" title="Address Resolution Protocol">ARP</a> has been assigned an LSAP value of 152 (0x98), IPv4 is almost never directly encapsulated in 802.2 LLC frames without SNAP headers. Instead, the <a href="/wiki/Internet_standard" class="mw-redirect" title="Internet standard">Internet standard</a> RFC 1042 is usually used for encapsulating IPv4 traffic in 802.2 LLC frames with SNAP headers on <a href="/wiki/Fiber_Distributed_Data_Interface" title="Fiber Distributed Data Interface">FDDI</a> and on <a href="/wiki/IEEE_802" title="IEEE 802">IEEE 802</a> networks other than <a href="/wiki/Ethernet" title="Ethernet">Ethernet</a>. Ethernet networks typically use <a href="/wiki/Ethernet_II" class="mw-redirect" title="Ethernet II">Ethernet II</a> framing with <a href="/wiki/EtherType" title="EtherType">EtherType</a> 0x800 for IP and 0x806 for ARP.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> </p><p>The <a href="/wiki/Internetwork_Packet_Exchange" title="Internetwork Packet Exchange">IPX</a> protocol used by Novell <a href="/wiki/NetWare" title="NetWare">NetWare</a> networks supports an additional <a href="/wiki/Ethernet" title="Ethernet">Ethernet</a> frame type, <a href="/wiki/Ethernet_frame#Novell_raw_IEEE_802.3" title="Ethernet frame">802.3 raw</a>, ultimately supporting four frame types on Ethernet (802.3 raw, <a href="/wiki/Ethernet_frame#IEEE_802.2_LLC" title="Ethernet frame">802.2 LLC</a>, <a href="/wiki/Ethernet_frame#IEEE_802.2_SNAP" title="Ethernet frame">802.2 SNAP</a>, and <a href="/wiki/Ethernet_frame#Ethernet_II" title="Ethernet frame">Ethernet II</a>) and two frame types on <a href="/wiki/Fiber_Distributed_Data_Interface" title="Fiber Distributed Data Interface">FDDI</a> and other (non-Ethernet) IEEE 802 networks (802.2 LLC and 802.2 SNAP). </p><p>It is possible to use diverse framings on a single network. It is possible to do it even for the same upper layer protocol, but in such a case the nodes using unlike framings cannot directly communicate with each other. </p> <div class="mw-heading mw-heading3"><h3 id="Control_Field">Control Field</h3><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=5" title="Edit section: Control Field"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <p>Following the destination and source SAP fields is a <a href="/wiki/HDLC#Control_Field" class="mw-redirect" title="HDLC">control field</a>. IEEE 802.2 was conceptually derived from <a href="/wiki/HDLC" class="mw-redirect" title="HDLC">HDLC</a>, and has the same three types of <a href="/wiki/Protocol_data_unit" title="Protocol data unit">PDUs</a>: </p> <ul><li>unnumbered format PDUs, or <b>U-format</b> PDUs, with an 8-bit control field, which are intended for connectionless applications;</li> <li>information transfer format PDUs, or <b>I-format</b> PDUs, with a 16-bit control and sequence numbering field, which are intended to be used in connection-oriented applications;</li> <li>supervisory format PDUs, or <b>S-format</b> PDUs, with a 16-bit control field, which are intended to be used for supervisory functions at the LLC (Logical Link Control) layer.</li></ul> <p>To carry data in the most-often used unacknowledged connectionless mode the U-format is used. It is identified by the value '11' in lower two bits of the single-byte control field. </p> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=6" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-1"><span class="mw-cite-backlink"><b><a href="#cite_ref-1">^</a></b></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite class="citation book cs1 cs1-prop-long-vol"><i>IEEE Standard for Information technology—Telecommunications and information exchange between systems—Local and metropolitan area networks—Specific requirements</i>. Vol. Part 2: Logical Link Control. New York: The Institute of Electrical and Electronics Engineers. May 7, 2008. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55937-959-6" title="Special:BookSources/1-55937-959-6"><bdi>1-55937-959-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=IEEE+Standard+for+Information+technology%E2%80%94Telecommunications+and+information+exchange+between+systems%E2%80%94Local+and+metropolitan+area+networks%E2%80%94Specific+requirements&rft.place=New+York&rft.pub=The+Institute+of+Electrical+and+Electronics+Engineers&rft.date=2008-05-07&rft.isbn=1-55937-959-6&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span></span> </li> <li id="cite_note-rfc1700-2"><span class="mw-cite-backlink">^ <a href="#cite_ref-rfc1700_2-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-rfc1700_2-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-rfc1700_2-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-rfc1700_2-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-rfc1700_2-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-rfc1700_2-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-rfc1700_2-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-rfc1700_2-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-rfc1700_2-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-rfc1700_2-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-rfc1700_2-10"><sup><i><b>k</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFPostelReynolds1994" class="citation cs1"><a href="/wiki/Jon_Postel" title="Jon Postel">Postel, J.</a>; <a href="/wiki/Joyce_K._Reynolds" title="Joyce K. Reynolds">Reynolds, J.</a> (October 1994). <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc1700#page-165">"IEEE 802 NUMBERS OF INTEREST"</a>. <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc1700"><i>Assigned Numbers</i></a>. p. 165. <a href="/wiki/Doi_(identifier)" class="mw-redirect" title="Doi (identifier)">doi</a>:<span class="id-lock-free" title="Freely accessible"><a rel="nofollow" class="external text" href="https://doi.org/10.17487%2FRFC1700">10.17487/RFC1700</a></span>. <a href="/wiki/Request_for_Comments" title="Request for Comments">RFC</a> <a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc1700">1700</a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=bookitem&rft.atitle=IEEE+802+NUMBERS+OF+INTEREST&rft.btitle=Assigned+Numbers&rft.pages=p.-165&rft.date=1994-10&rft_id=info%3Adoi%2F10.17487%2FRFC1700&rft.aulast=Postel&rft.aufirst=J.&rft.au=Reynolds%2C+J.&rft_id=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Frfc1700%26%23035%3Bpage-165&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span></span> </li> <li id="cite_note-LAN_tech-3"><span class="mw-cite-backlink">^ <a href="#cite_ref-LAN_tech_3-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-3"><sup><i><b>d</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-4"><sup><i><b>e</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-5"><sup><i><b>f</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-6"><sup><i><b>g</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-7"><sup><i><b>h</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-8"><sup><i><b>i</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-9"><sup><i><b>j</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-10"><sup><i><b>k</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-11"><sup><i><b>l</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-12"><sup><i><b>m</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-13"><sup><i><b>n</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-14"><sup><i><b>o</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-15"><sup><i><b>p</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-16"><sup><i><b>q</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-17"><sup><i><b>r</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-18"><sup><i><b>s</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-19"><sup><i><b>t</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-20"><sup><i><b>u</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-21"><sup><i><b>v</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-22"><sup><i><b>w</b></i></sup></a> <a href="#cite_ref-LAN_tech_3-23"><sup><i><b>x</b></i></sup></a></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite id="CITEREFMillerCummins2000" class="citation book cs1">Miller, Philip; Cummins, Michael (2000). <a rel="nofollow" class="external text" href="https://archive.org/details/lantechnologiese0000mill/page/506"><i>LAN Technologies Explained</i></a>. Digital Press. p. <a rel="nofollow" class="external text" href="https://archive.org/details/lantechnologiese0000mill/page/506">506</a>. <a href="/wiki/ISBN_(identifier)" class="mw-redirect" title="ISBN (identifier)">ISBN</a> <a href="/wiki/Special:BookSources/1-55558-234-6" title="Special:BookSources/1-55558-234-6"><bdi>1-55558-234-6</bdi></a>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=LAN+Technologies+Explained&rft.pages=506&rft.pub=Digital+Press&rft.date=2000&rft.isbn=1-55558-234-6&rft.aulast=Miller&rft.aufirst=Philip&rft.au=Cummins%2C+Michael&rft_id=https%3A%2F%2Farchive.org%2Fdetails%2Flantechnologiese0000mill%2Fpage%2F506&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span></span> </li> <li id="cite_note-4"><span class="mw-cite-backlink"><b><a href="#cite_ref-4">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://www.ashrae.org/resources--publications/bookstore/standard-135"><i>The BACnet Standard—Standard 135-2012</i></a>, Ashrae</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=The+BACnet+Standard%E2%80%94Standard+135-2012&rft.pub=Ashrae&rft_id=https%3A%2F%2Fwww.ashrae.org%2Fresources--publications%2Fbookstore%2Fstandard-135&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span>.</span> </li> <li id="cite_note-5"><span class="mw-cite-backlink"><b><a href="#cite_ref-5">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://datatracker.ietf.org/doc/html/rfc994"><i>Final Text of DIS 8473, Protocol for Providing the Connectionless-mode Network Service</i></a>, RFC, IETF</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=Final+Text+of+DIS+8473%2C+Protocol+for+Providing+the+Connectionless-mode+Network+Service&rft.series=RFC&rft.pub=IETF&rft_id=https%3A%2F%2Fdatatracker.ietf.org%2Fdoc%2Fhtml%2Frfc994&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span>.</span> </li> <li id="cite_note-6"><span class="mw-cite-backlink"><b><a href="#cite_ref-6">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/03/09/30932.html">"ISO/IEC 10589:2002"</a>. <i>ISO</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2020-12-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=ISO&rft.atitle=ISO%2FIEC+10589%3A2002&rft_id=https%3A%2F%2Fwww.iso.org%2Fcms%2Frender%2Flive%2Fen%2Fsites%2Fisoorg%2Fcontents%2Fdata%2Fstandard%2F03%2F09%2F30932.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span></span> </li> <li id="cite_note-7"><span class="mw-cite-backlink"><b><a href="#cite_ref-7">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation web cs1"><a rel="nofollow" class="external text" href="https://www.iso.org/cms/render/live/en/sites/isoorg/contents/data/standard/01/72/17285.html">"ISO 9542:1988"</a>. <i>ISO</i><span class="reference-accessdate">. Retrieved <span class="nowrap">2020-12-18</span></span>.</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Ajournal&rft.genre=unknown&rft.jtitle=ISO&rft.atitle=ISO+9542%3A1988&rft_id=https%3A%2F%2Fwww.iso.org%2Fcms%2Frender%2Flive%2Fen%2Fsites%2Fisoorg%2Fcontents%2Fdata%2Fstandard%2F01%2F72%2F17285.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span></span> </li> <li id="cite_note-8"><span class="mw-cite-backlink"><b><a href="#cite_ref-8">^</a></b></span> <span class="reference-text"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://lkml.org/lkml/2011/7/27/169"><i>LKML</i></a>, 2011-07-27</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=LKML&rft.date=2011-07-27&rft_id=https%3A%2F%2Flkml.org%2Flkml%2F2011%2F7%2F27%2F169&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span>.</span> </li> </ol></div></div> <div class="mw-heading mw-heading2"><h2 id="External_links">External links</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=IEEE_802.2&action=edit&section=7" title="Edit section: External links"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1238218222"><cite class="citation cs2"><a rel="nofollow" class="external text" href="https://web.archive.org/web/20010708175552/http://standards.ieee.org/getieee802/802.2.html"><i>802.2</i></a> (online ed.), IEEE, archived from <a rel="nofollow" class="external text" href="http://standards.ieee.org/getieee802/802.2.html">the original</a> on July 8, 2001</cite><span title="ctx_ver=Z39.88-2004&rft_val_fmt=info%3Aofi%2Ffmt%3Akev%3Amtx%3Abook&rft.genre=book&rft.btitle=802.2&rft.edition=online&rft.pub=IEEE&rft_id=http%3A%2F%2Fstandards.ieee.org%2Fgetieee802%2F802.2.html&rfr_id=info%3Asid%2Fen.wikipedia.org%3AIEEE+802.2" class="Z3988"></span>.</li></ul> <div class="navbox-styles"><style data-mw-deduplicate="TemplateStyles:r1129693374">.mw-parser-output .hlist dl,.mw-parser-output .hlist ol,.mw-parser-output .hlist ul{margin:0;padding:0}.mw-parser-output .hlist dd,.mw-parser-output .hlist dt,.mw-parser-output .hlist li{margin:0;display:inline}.mw-parser-output .hlist.inline,.mw-parser-output .hlist.inline dl,.mw-parser-output .hlist.inline ol,.mw-parser-output .hlist.inline ul,.mw-parser-output .hlist dl dl,.mw-parser-output .hlist dl ol,.mw-parser-output .hlist dl ul,.mw-parser-output .hlist ol dl,.mw-parser-output .hlist ol ol,.mw-parser-output .hlist ol ul,.mw-parser-output .hlist ul dl,.mw-parser-output .hlist ul ol,.mw-parser-output .hlist ul ul{display:inline}.mw-parser-output .hlist .mw-empty-li{display:none}.mw-parser-output .hlist dt::after{content:": "}.mw-parser-output .hlist dd::after,.mw-parser-output .hlist li::after{content:" · ";font-weight:bold}.mw-parser-output .hlist dd:last-child::after,.mw-parser-output .hlist dt:last-child::after,.mw-parser-output .hlist li:last-child::after{content:none}.mw-parser-output .hlist dd dd:first-child::before,.mw-parser-output .hlist dd dt:first-child::before,.mw-parser-output .hlist dd li:first-child::before,.mw-parser-output .hlist dt dd:first-child::before,.mw-parser-output .hlist dt dt:first-child::before,.mw-parser-output .hlist dt li:first-child::before,.mw-parser-output .hlist li dd:first-child::before,.mw-parser-output .hlist li dt:first-child::before,.mw-parser-output .hlist li li:first-child::before{content:" (";font-weight:normal}.mw-parser-output .hlist dd dd:last-child::after,.mw-parser-output .hlist dd dt:last-child::after,.mw-parser-output .hlist dd li:last-child::after,.mw-parser-output .hlist dt dd:last-child::after,.mw-parser-output .hlist dt dt:last-child::after,.mw-parser-output .hlist dt li:last-child::after,.mw-parser-output .hlist li dd:last-child::after,.mw-parser-output .hlist li dt:last-child::after,.mw-parser-output .hlist li li:last-child::after{content:")";font-weight:normal}.mw-parser-output .hlist ol{counter-reset:listitem}.mw-parser-output .hlist ol>li{counter-increment:listitem}.mw-parser-output .hlist ol>li::before{content:" "counter(listitem)"\a0 "}.mw-parser-output .hlist dd ol>li:first-child::before,.mw-parser-output .hlist dt ol>li:first-child::before,.mw-parser-output .hlist li ol>li:first-child::before{content:" ("counter(listitem)"\a0 "}</style><style data-mw-deduplicate="TemplateStyles:r1236075235">.mw-parser-output .navbox{box-sizing:border-box;border:1px solid #a2a9b1;width:100%;clear:both;font-size:88%;text-align:center;padding:1px;margin:1em auto 0}.mw-parser-output .navbox .navbox{margin-top:0}.mw-parser-output .navbox+.navbox,.mw-parser-output .navbox+.navbox-styles+.navbox{margin-top:-1px}.mw-parser-output .navbox-inner,.mw-parser-output .navbox-subgroup{width:100%}.mw-parser-output .navbox-group,.mw-parser-output .navbox-title,.mw-parser-output .navbox-abovebelow{padding:0.25em 1em;line-height:1.5em;text-align:center}.mw-parser-output .navbox-group{white-space:nowrap;text-align:right}.mw-parser-output .navbox,.mw-parser-output .navbox-subgroup{background-color:#fdfdfd}.mw-parser-output .navbox-list{line-height:1.5em;border-color:#fdfdfd}.mw-parser-output .navbox-list-with-group{text-align:left;border-left-width:2px;border-left-style:solid}.mw-parser-output tr+tr>.navbox-abovebelow,.mw-parser-output tr+tr>.navbox-group,.mw-parser-output tr+tr>.navbox-image,.mw-parser-output tr+tr>.navbox-list{border-top:2px solid #fdfdfd}.mw-parser-output .navbox-title{background-color:#ccf}.mw-parser-output .navbox-abovebelow,.mw-parser-output .navbox-group,.mw-parser-output .navbox-subgroup .navbox-title{background-color:#ddf}.mw-parser-output .navbox-subgroup .navbox-group,.mw-parser-output .navbox-subgroup .navbox-abovebelow{background-color:#e6e6ff}.mw-parser-output .navbox-even{background-color:#f7f7f7}.mw-parser-output .navbox-odd{background-color:transparent}.mw-parser-output .navbox .hlist td dl,.mw-parser-output .navbox .hlist td ol,.mw-parser-output .navbox .hlist td ul,.mw-parser-output .navbox td.hlist dl,.mw-parser-output .navbox td.hlist ol,.mw-parser-output .navbox td.hlist ul{padding:0.125em 0}.mw-parser-output .navbox .navbar{display:block;font-size:100%}.mw-parser-output .navbox-title .navbar{float:left;text-align:left;margin-right:0.5em}body.skin--responsive .mw-parser-output .navbox-image img{max-width:none!important}@media print{body.ns-0 .mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="IEEE_standards" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:IEEE_standards" title="Template:IEEE standards"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:IEEE_standards" title="Template talk:IEEE standards"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:IEEE_standards" title="Special:EditPage/Template:IEEE standards"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="IEEE_standards" style="font-size:114%;margin:0 4em"><a href="/wiki/IEEE_Standards_Association" title="IEEE Standards Association">IEEE standards</a></div></th></tr><tr><th scope="row" class="navbox-group" style="width:1%">Current</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE-488" class="mw-redirect" title="IEEE-488">488</a></li> <li><a href="/wiki/IEEE_693" title="IEEE 693">693</a></li> <li><a href="/wiki/Software_quality_assurance" title="Software quality assurance">730</a></li> <li><a href="/wiki/IEEE_754" title="IEEE 754">754</a> <ul><li><a href="/wiki/IEEE_754-2008_revision" title="IEEE 754-2008 revision">Revision</a></li></ul></li> <li><a href="/wiki/IEEE_854-1987" title="IEEE 854-1987">854</a></li> <li><a href="/wiki/Software_configuration_management" title="Software configuration management">828</a></li> <li><a href="/wiki/Software_test_documentation" title="Software test documentation">829</a></li> <li><a href="/wiki/Futurebus" title="Futurebus">896</a></li> <li><a href="/wiki/Single_UNIX_Specification" title="Single UNIX Specification">1003</a></li> <li><a href="/wiki/VMEbus" title="VMEbus">1014</a></li> <li><a href="/wiki/Software_design_description" title="Software design description">1016</a></li> <li><a href="/wiki/VHDL" title="VHDL">1076</a></li> <li><a href="/wiki/JTAG" title="JTAG">1149.1</a></li> <li><a href="/wiki/PILOT" title="PILOT">1154</a></li> <li><a href="/wiki/IEEE_1164" title="IEEE 1164">1164</a></li> <li><a href="/wiki/Open_Firmware" title="Open Firmware">1275</a></li> <li><a href="/wiki/Distributed_Interactive_Simulation" title="Distributed Interactive Simulation">1278</a></li> <li><a href="/wiki/IEEE_1284" title="IEEE 1284">1284</a></li> <li><a href="/wiki/IEEE_1355" title="IEEE 1355">1355</a></li> <li><a href="/wiki/IEEE_1394" title="IEEE 1394">1394</a></li> <li><a href="/wiki/IEEE_1451" title="IEEE 1451">1451</a></li> <li><a href="/wiki/Standard_Delay_Format" title="Standard Delay Format">1497</a></li> <li><a href="/wiki/High-level_architecture" class="mw-redirect" title="High-level architecture">1516</a></li> <li><a href="/wiki/IEEE_1541-2002" class="mw-redirect" title="IEEE 1541-2002">1541</a></li> <li><a href="/wiki/IEEE_1547" title="IEEE 1547">1547</a></li> <li><a href="/wiki/IEEE_1584" title="IEEE 1584">1584</a></li> <li><a href="/wiki/Precision_Time_Protocol" title="Precision Time Protocol">1588</a></li> <li><a href="/wiki/Scalable_Coherent_Interface" title="Scalable Coherent Interface">1596</a></li> <li><a href="/wiki/Advanced_Library_Format" title="Advanced Library Format">1603</a></li> <li><a href="/wiki/IEEE_1613" title="IEEE 1613">1613</a></li> <li><a href="/wiki/IEEE_1619" class="mw-redirect" title="IEEE 1619">1619</a></li> <li><a href="/wiki/SystemC" title="SystemC">1666</a></li> <li><a href="/wiki/IEEE_1667" title="IEEE 1667">1667</a></li> <li><a href="/wiki/IEEE_1675-2008" title="IEEE 1675-2008">1675</a></li> <li><a href="/wiki/IP-XACT" title="IP-XACT">1685</a></li> <li><a href="/wiki/IEEE_1722" class="mw-redirect" title="IEEE 1722">1722</a></li> <li><a href="/wiki/IEEE_1733" class="mw-redirect" title="IEEE 1733">1733</a></li> <li><a href="/wiki/SystemVerilog" title="SystemVerilog">1800</a></li> <li><a href="/wiki/Unified_Power_Format" title="Unified Power Format">1801</a></li> <li><a href="/wiki/DNP3" title="DNP3">1815</a></li> <li><a href="/wiki/IEEE_1849" title="IEEE 1849">1849</a></li> <li><a href="/wiki/Property_Specification_Language" title="Property Specification Language">1850</a></li> <li><a href="/wiki/IEEE_1855" title="IEEE 1855">1855</a></li> <li><a href="/wiki/DySPAN" title="DySPAN">1900</a></li> <li><a href="/wiki/IEEE_1901" title="IEEE 1901">1901</a></li> <li><a href="/wiki/RuBee" title="RuBee">1902</a></li> <li><a href="/wiki/Service_Interoperability_in_Ethernet_Passive_Optical_Networks" title="Service Interoperability in Ethernet Passive Optical Networks">1904</a></li> <li><a href="/wiki/IEEE_1905" title="IEEE 1905">1905</a></li> <li><a href="/wiki/IEEE_2030" title="IEEE 2030">2030</a></li> <li><a href="/wiki/Micro_T-Kernel" title="Micro T-Kernel">2050</a></li> <li><a href="/wiki/ISO/IEEE_11073" title="ISO/IEEE 11073">11073</a></li> <li><a href="/wiki/ISO/IEC_12207" title="ISO/IEC 12207">12207</a></li> <li><a href="/wiki/Software_maintenance" title="Software maintenance">14764</a></li> <li><a href="/wiki/Risk_management" title="Risk management">16085</a></li> <li><a href="/wiki/Project_management" title="Project management">16326</a></li> <li><a href="/wiki/Requirements_engineering" title="Requirements engineering">29148</a></li> <li><a href="/wiki/ISO/IEC_42010" title="ISO/IEC 42010">42010</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IEEE_802" title="IEEE 802">802 series</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IEEE_802" title="IEEE 802">802</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a class="mw-selflink selflink">.2</a></li> <li><a href="/wiki/Token_bus_network" title="Token bus network">.4</a></li> <li><a href="/wiki/Token_Ring" title="Token Ring">.5</a></li> <li><a href="/wiki/IEEE_802.6" title="IEEE 802.6">.6</a></li> <li><a href="/wiki/IEEE_802.7" title="IEEE 802.7">.7</a></li> <li><a href="/wiki/IEEE_802.8" title="IEEE 802.8">.8</a></li> <li><a href="/wiki/IEEE_802.9" title="IEEE 802.9">.9</a></li> <li><a href="/wiki/IEEE_802.10" title="IEEE 802.10">.10</a></li> <li><a href="/wiki/100BaseVG" title="100BaseVG">.12</a></li> <li><a href="/wiki/Cable_modem#IEEE_802.14" title="Cable modem">.14</a></li> <li><a href="/wiki/IEEE_802.16" title="IEEE 802.16">.16</a> <ul><li><a href="/wiki/WiMAX" title="WiMAX">WiMAX · d · e</a></li></ul></li> <li><a href="/wiki/Resilient_Packet_Ring" title="Resilient Packet Ring">.17</a></li> <li><a href="/wiki/IEEE_802.18" title="IEEE 802.18">.18</a></li> <li><a href="/wiki/IEEE_802.20" title="IEEE 802.20">.20</a></li> <li><a href="/wiki/IEEE_802.21" title="IEEE 802.21">.21</a></li> <li><a href="/wiki/IEEE_802.22" title="IEEE 802.22">.22</a></li> <li><a href="/w/index.php?title=IEEE_802.24&action=edit&redlink=1" class="new" title="IEEE 802.24 (page does not exist)">.24</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IEEE_802.1" title="IEEE 802.1">802.1</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE_802.1D" title="IEEE 802.1D">D</a></li> <li><a href="/wiki/IEEE_P802.1p" title="IEEE P802.1p">p</a></li> <li><a href="/wiki/IEEE_802.1Q" title="IEEE 802.1Q">Q</a></li> <li><a href="/wiki/IEEE_802.1Qav" class="mw-redirect" title="IEEE 802.1Qav">Qav</a></li> <li><a href="/wiki/Stream_Reservation_Protocol" title="Stream Reservation Protocol">Qat</a></li> <li><a href="/wiki/Provider_Backbone_Bridge_Traffic_Engineering" title="Provider Backbone Bridge Traffic Engineering">Qay</a></li> <li><a href="/wiki/Data_center_bridging#IEEE_Task_Group" title="Data center bridging">Qaz</a></li> <li><a href="/wiki/IEEE_802.1Qbb" class="mw-redirect" title="IEEE 802.1Qbb">Qbb</a></li> <li><a href="/wiki/Spanning_Tree_Protocol" title="Spanning Tree Protocol">w</a></li> <li><a href="/wiki/IEEE_802.1X" title="IEEE 802.1X">X</a></li> <li><a href="/wiki/Link_Layer_Discovery_Protocol" title="Link Layer Discovery Protocol">AB</a></li> <li><a href="/wiki/IEEE_802.1ad" title="IEEE 802.1ad">ad</a></li> <li><a href="/wiki/IEEE_802.1AE" title="IEEE 802.1AE">AE</a></li> <li><a href="/wiki/IEEE_802.1ag" title="IEEE 802.1ag">ag</a></li> <li><a href="/wiki/IEEE_802.1ah-2008" class="mw-redirect" title="IEEE 802.1ah-2008">ah</a></li> <li><a href="/wiki/Multiple_Registration_Protocol" title="Multiple Registration Protocol">ak</a></li> <li><a href="/wiki/IEEE_802.1aq" title="IEEE 802.1aq">aq</a></li> <li><a href="/wiki/IEEE_802.1AS" class="mw-redirect" title="IEEE 802.1AS">AS</a></li> <li><a href="/wiki/Link_aggregation" title="Link aggregation">AX</a> (<a href="/wiki/Link_Aggregation_Control_Protocol" class="mw-redirect" title="Link Aggregation Control Protocol">LACP</a>)</li> <li><a href="/wiki/Audio_Video_Bridging" title="Audio Video Bridging">BA</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IEEE_802.3" title="IEEE 802.3">802.3</a> <br />(<a href="/wiki/Ethernet" title="Ethernet">Ethernet</a>)</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/10BASE5" title="10BASE5">-1983</a></li> <li><a href="/wiki/802.3a" class="mw-redirect" title="802.3a">a</a></li> <li><a href="/wiki/802.3b" class="mw-redirect" title="802.3b">b</a></li> <li><a href="/wiki/802.3d" class="mw-redirect" title="802.3d">d</a></li> <li><a href="/wiki/802.3e" class="mw-redirect" title="802.3e">e</a></li> <li><a href="/wiki/802.3i" class="mw-redirect" title="802.3i">i</a></li> <li><a href="/wiki/802.3j" class="mw-redirect" title="802.3j">j</a></li> <li><a href="/wiki/802.3u" class="mw-redirect" title="802.3u">u</a></li> <li><a href="/wiki/IEEE_802.3x" class="mw-redirect" title="IEEE 802.3x">x</a></li> <li><a href="/wiki/802.3y" class="mw-redirect" title="802.3y">y</a></li> <li><a href="/wiki/802.3z" class="mw-redirect" title="802.3z">z</a></li> <li><a href="/wiki/802.3ab" class="mw-redirect" title="802.3ab">ab</a></li> <li><a href="/wiki/802.3ac" class="mw-redirect" title="802.3ac">ac</a></li> <li><a href="/wiki/802.3ad" class="mw-redirect" title="802.3ad">ad</a></li> <li><a href="/wiki/802.3ae" class="mw-redirect" title="802.3ae">ae</a></li> <li><b><a href="/wiki/802.3af" class="mw-redirect" title="802.3af">af</a></b></li> <li><a href="/wiki/802.3ah" class="mw-redirect" title="802.3ah">ah</a></li> <li><a href="/wiki/802.3ak" class="mw-redirect" title="802.3ak">ak</a></li> <li><a href="/wiki/802.3an" class="mw-redirect" title="802.3an">an</a></li> <li><a href="/wiki/802.3aq" class="mw-redirect" title="802.3aq">aq</a></li> <li><b><a href="/wiki/802.3at" class="mw-redirect" title="802.3at">at</a></b></li> <li><a href="/wiki/802.3au" class="mw-redirect" title="802.3au">au</a></li> <li><a href="/wiki/802.3av" class="mw-redirect" title="802.3av">av</a></li> <li><a href="/wiki/802.3az" class="mw-redirect" title="802.3az">az</a></li> <li><a href="/wiki/802.3ba" class="mw-redirect" title="802.3ba">ba</a></li> <li><b><a href="/wiki/802.3bt" class="mw-redirect" title="802.3bt">bt</a></b></li> <li><a href="/wiki/802.3bu" class="mw-redirect" title="802.3bu">bu</a></li> <li><a href="/wiki/802.3by" class="mw-redirect" title="802.3by">by</a></li> <li><a href="/wiki/802.3bz" class="mw-redirect" title="802.3bz">bz</a></li> <li><a href="/w/index.php?title=802.3ca&action=edit&redlink=1" class="new" title="802.3ca (page does not exist)">ca</a></li> <li><a href="/w/index.php?title=802.3cb&action=edit&redlink=1" class="new" title="802.3cb (page does not exist)">cb</a></li> <li><a href="/w/index.php?title=802.3cc&action=edit&redlink=1" class="new" title="802.3cc (page does not exist)">cc</a></li> <li><a href="/w/index.php?title=802.3cd&action=edit&redlink=1" class="new" title="802.3cd (page does not exist)">cd</a></li> <li><a href="/w/index.php?title=802.3ce&action=edit&redlink=1" class="new" title="802.3ce (page does not exist)">ce</a></li> <li><a href="/wiki/802.3cg" class="mw-redirect" title="802.3cg">cg</a></li> <li><a href="/wiki/802.3ch" class="mw-redirect" title="802.3ch">ch</a></li> <li><a href="/w/index.php?title=802.3ck&action=edit&redlink=1" class="new" title="802.3ck (page does not exist)">ck</a></li> <li><a href="/w/index.php?title=802.3cm&action=edit&redlink=1" class="new" title="802.3cm (page does not exist)">cm</a></li> <li><a href="/w/index.php?title=802.3cn&action=edit&redlink=1" class="new" title="802.3cn (page does not exist)">cn</a></li> <li><a href="/w/index.php?title=802.3cp&action=edit&redlink=1" class="new" title="802.3cp (page does not exist)">cp</a></li> <li><a href="/wiki/802.3cq" class="mw-redirect" title="802.3cq">cq</a></li> <li><a href="/w/index.php?title=802.3cr&action=edit&redlink=1" class="new" title="802.3cr (page does not exist)">cr</a></li> <li><a href="/w/index.php?title=802.3cs&action=edit&redlink=1" class="new" title="802.3cs (page does not exist)">cs</a></li> <li><a href="/w/index.php?title=802.3ct&action=edit&redlink=1" class="new" title="802.3ct (page does not exist)">ct</a></li> <li><a href="/w/index.php?title=802.3cu&action=edit&redlink=1" class="new" title="802.3cu (page does not exist)">cu</a></li> <li><a href="/wiki/802.3cv" class="mw-redirect" title="802.3cv">cv</a></li> <li><a href="/w/index.php?title=802.3cw&action=edit&redlink=1" class="new" title="802.3cw (page does not exist)">cw</a></li> <li><a href="/w/index.php?title=802.3cx&action=edit&redlink=1" class="new" title="802.3cx (page does not exist)">cx</a></li> <li><a href="/w/index.php?title=802.3cy&action=edit&redlink=1" class="new" title="802.3cy (page does not exist)">cy</a></li> <li><a href="/w/index.php?title=802.3cz&action=edit&redlink=1" class="new" title="802.3cz (page does not exist)">cz</a></li> <li><a href="/w/index.php?title=802.3da&action=edit&redlink=1" class="new" title="802.3da (page does not exist)">da</a></li> <li><a href="/w/index.php?title=802.3db&action=edit&redlink=1" class="new" title="802.3db (page does not exist)">db</a></li> <li><a href="/wiki/802.3dd" class="mw-redirect" title="802.3dd">dd</a></li> <li><a href="/w/index.php?title=802.3de&action=edit&redlink=1" class="new" title="802.3de (page does not exist)">de</a></li> <li><a href="/w/index.php?title=802.3df&action=edit&redlink=1" class="new" title="802.3df (page does not exist)">df</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IEEE_802.11" title="IEEE 802.11">802.11</a> <br />(<a href="/wiki/Wi-Fi" title="Wi-Fi">Wi-Fi</a>)</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE_802.11-1997" class="mw-redirect" title="IEEE 802.11-1997">-1997</a></li> <li><a href="/wiki/IEEE_802.11_(legacy_mode)" title="IEEE 802.11 (legacy mode)">legacy mode</a></li> <li><a href="/wiki/IEEE_802.11a-1999" title="IEEE 802.11a-1999">a</a></li> <li><a href="/wiki/IEEE_802.11b-1999" title="IEEE 802.11b-1999">b</a></li> <li><a href="/wiki/IEEE_802.11c" title="IEEE 802.11c">c</a></li> <li><a href="/wiki/IEEE_802.11d-2001" title="IEEE 802.11d-2001">d</a></li> <li><a href="/wiki/IEEE_802.11e-2005" title="IEEE 802.11e-2005">e</a></li> <li><a href="/wiki/Inter-Access_Point_Protocol" title="Inter-Access Point Protocol">f</a></li> <li><a href="/wiki/IEEE_802.11g-2003" title="IEEE 802.11g-2003">g</a></li> <li><a href="/wiki/IEEE_802.11h-2003" title="IEEE 802.11h-2003">h</a></li> <li><a href="/wiki/IEEE_802.11i-2004" title="IEEE 802.11i-2004">i</a></li> <li><a href="/wiki/IEEE_802.11j-2004" title="IEEE 802.11j-2004">j</a></li> <li><a href="/wiki/IEEE_802.11k-2008" title="IEEE 802.11k-2008">k</a></li> <li><b><a href="/wiki/IEEE_802.11n-2009" title="IEEE 802.11n-2009">n</a></b> (<a href="/wiki/Wi-Fi_4" class="mw-redirect" title="Wi-Fi 4">Wi-Fi 4</a>)</li> <li><a href="/wiki/IEEE_802.11p" title="IEEE 802.11p">p</a></li> <li><a href="/wiki/IEEE_802.11r-2008" title="IEEE 802.11r-2008">r</a></li> <li><a href="/wiki/IEEE_802.11s" title="IEEE 802.11s">s</a></li> <li><a href="/wiki/IEEE_802.11u" title="IEEE 802.11u">u</a></li> <li><a href="/wiki/IEEE_802.11v" class="mw-redirect" title="IEEE 802.11v">v</a></li> <li><a href="/wiki/IEEE_802.11w-2009" title="IEEE 802.11w-2009">w</a></li> <li><a href="/wiki/IEEE_802.11y-2008" title="IEEE 802.11y-2008">y</a></li> <li><a href="/wiki/IEEE_802.11z" class="mw-redirect" title="IEEE 802.11z">z</a></li> <li>aa</li> <li><b><a href="/wiki/IEEE_802.11ac" class="mw-redirect" title="IEEE 802.11ac">ac</a></b> (<a href="/wiki/Wi-Fi_5" class="mw-redirect" title="Wi-Fi 5">Wi-Fi 5</a>)</li> <li><a href="/wiki/IEEE_802.11ad" title="IEEE 802.11ad">ad</a> (<a href="/wiki/WiGig" title="WiGig">WiGig</a>)</li> <li>ae</li> <li><a href="/wiki/IEEE_802.11af" title="IEEE 802.11af">af</a></li> <li><a href="/wiki/IEEE_802.11ah" title="IEEE 802.11ah">ah</a></li> <li><a href="/wiki/IEEE_802.11ai" title="IEEE 802.11ai">ai</a></li> <li><a href="/wiki/IEEE_802.11aj" class="mw-redirect" title="IEEE 802.11aj">aj</a></li> <li>ak</li> <li>aq</li> <li><b><a href="/wiki/IEEE_802.11ax" class="mw-redirect" title="IEEE 802.11ax">ax</a></b> (<a href="/wiki/Wi-Fi_6" title="Wi-Fi 6">Wi-Fi 6</a>)</li> <li><a href="/wiki/IEEE_802.11ay" title="IEEE 802.11ay">ay</a></li> <li>az</li> <li>ba</li> <li><a href="/wiki/IEEE_802.11bb" title="IEEE 802.11bb">bb</a></li> <li>bc</li> <li>bd</li> <li><b><a href="/wiki/IEEE_802.11be" class="mw-redirect" title="IEEE 802.11be">be</a></b> (<a href="/wiki/Wi-Fi_7" title="Wi-Fi 7">Wi-Fi 7</a>)</li> <li>bf</li> <li>bh</li> <li>bi</li> <li>bk</li> <li><b><a href="/wiki/IEEE_802.11bn" title="IEEE 802.11bn">bn</a></b> (<a href="/w/index.php?title=Wi-Fi_8&action=edit&redlink=1" class="new" title="Wi-Fi 8 (page does not exist)">Wi-Fi 8</a>)</li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/IEEE_802.15" title="IEEE 802.15">802.15</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE_802.15.1" class="mw-redirect" title="IEEE 802.15.1">.1</a> (<a href="/wiki/Bluetooth" title="Bluetooth">Bluetooth</a>)</li> <li><a href="/wiki/IEEE_802.15.2" class="mw-redirect" title="IEEE 802.15.2">.2</a></li> <li><a href="/wiki/IEEE_802.15.3" class="mw-redirect" title="IEEE 802.15.3">.3</a></li> <li><a href="/wiki/IEEE_802.15.4" title="IEEE 802.15.4">.4</a> (<a href="/wiki/Zigbee" title="Zigbee">Zigbee</a>)</li> <li><a href="/wiki/IEEE_802.15.4a" title="IEEE 802.15.4a">.4a</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4b&action=edit&redlink=1" class="new" title="IEEE 802.15.4b (page does not exist)">.4b</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4c&action=edit&redlink=1" class="new" title="IEEE 802.15.4c (page does not exist)">.4c</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4d&action=edit&redlink=1" class="new" title="IEEE 802.15.4d (page does not exist)">.4d</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4e&action=edit&redlink=1" class="new" title="IEEE 802.15.4e (page does not exist)">.4e</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4f&action=edit&redlink=1" class="new" title="IEEE 802.15.4f (page does not exist)">.4f</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4g&action=edit&redlink=1" class="new" title="IEEE 802.15.4g (page does not exist)">.4g</a></li> <li><a href="/w/index.php?title=IEEE_802.15.4z&action=edit&redlink=1" class="new" title="IEEE 802.15.4z (page does not exist)">.4z</a></li> <li><a href="/wiki/IEEE_802.15.5" class="mw-redirect" title="IEEE 802.15.5">.5</a></li> <li><a href="/wiki/IEEE_802.15.6" title="IEEE 802.15.6">.6</a></li> <li><a href="/wiki/IEEE_802.15.7" class="mw-redirect" title="IEEE 802.15.7">.7</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Proposed</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE_P1363" title="IEEE P1363">P1363</a></li> <li><a href="/wiki/IEEE_P1619" title="IEEE P1619">P1619</a></li> <li><a href="/wiki/Rosetta-lang" title="Rosetta-lang">P1699</a></li> <li><a href="/wiki/Universal_Power_Adapter_for_Mobile_Devices" title="Universal Power Adapter for Mobile Devices">P1823</a></li> <li><a href="/wiki/IEEE_P1906.1" title="IEEE P1906.1">P1906.1</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Superseded</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/IEEE_754-1985" title="IEEE 754-1985">754-1985</a></li> <li><a href="/wiki/Software_requirements_specification" title="Software requirements specification">830</a></li> <li><a href="/wiki/IEEE_1219" class="mw-redirect" title="IEEE 1219">1219</a></li> <li><a href="/wiki/Software_requirements_specification" title="Software requirements specification">1233</a></li> <li><a href="/wiki/Concept_of_operations" title="Concept of operations">1362</a></li> <li><a href="/wiki/Verilog" title="Verilog">1364</a></li> <li><a href="/wiki/IEEE_1471" title="IEEE 1471">1471</a></li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="2"><div> <dl><dt><i>See also</i></dt> <dd><a href="/wiki/IEEE_Standards_Association" title="IEEE Standards Association">IEEE Standards Association</a></dd> <dd><a href="/wiki/Category:IEEE_standards" title="Category:IEEE standards">Category:IEEE standards</a></dd></dl> </div></td></tr></tbody></table></div> <!-- NewPP limit report Parsed by mw‐web.codfw.main‐f69cdc8f6‐5blz9 Cached time: 20241122160151 Cache expiry: 2592000 Reduced expiry: false Complications: [vary‐revision‐sha1, show‐toc] CPU time usage: 0.360 seconds Real time usage: 0.455 seconds Preprocessor visited node count: 1383/1000000 Post‐expand include size: 50249/2097152 bytes Template argument size: 603/2097152 bytes Highest expansion depth: 19/100 Expensive parser function count: 1/500 Unstrip recursion depth: 1/20 Unstrip post‐expand size: 45825/5000000 bytes Lua time usage: 0.191/10.000 seconds Lua memory usage: 4723609/52428800 bytes Number of Wikibase entities loaded: 0/400 --> <!-- Transclusion expansion time report (%,ms,calls,template) 100.00% 360.370 1 -total 44.90% 161.813 1 Template:Reflist 25.28% 91.113 1 Template:IEEE_standards 24.79% 89.351 2 Template:Navbox 24.74% 89.142 2 Template:Cite_book 21.36% 76.991 1 Template:Short_description 13.15% 47.402 2 Template:Pagetype 8.12% 29.269 1 Template:Cite_IETF 4.67% 16.846 3 Template:Main_other 4.08% 14.685 1 Template:SDcat --> <!-- Saved in parser cache with key enwiki:pcache:idhash:15222-0!canonical and timestamp 20241122160151 and revision id 1258769291. Rendering was triggered because: page-view --> </div><!--esi <esi:include src="/esitest-fa8a495983347898/content" /> --><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; position: absolute;"></noscript> <div class="printfooter" data-nosnippet="">Retrieved from "<a dir="ltr" href="https://en.wikipedia.org/w/index.php?title=IEEE_802.2&oldid=1258769291">https://en.wikipedia.org/w/index.php?title=IEEE_802.2&oldid=1258769291</a>"</div></div> <div id="catlinks" class="catlinks" data-mw="interface"><div id="mw-normal-catlinks" class="mw-normal-catlinks"><a href="/wiki/Help:Category" title="Help:Category">Categories</a>: <ul><li><a href="/wiki/Category:IEEE_802" title="Category:IEEE 802">IEEE 802</a></li><li><a href="/wiki/Category:Link_protocols" title="Category:Link protocols">Link protocols</a></li><li><a href="/wiki/Category:Logical_link_control" title="Category:Logical link control">Logical link control</a></li></ul></div><div id="mw-hidden-catlinks" class="mw-hidden-catlinks mw-hidden-cats-hidden">Hidden categories: <ul><li><a href="/wiki/Category:CS1:_long_volume_value" title="Category:CS1: long volume value">CS1: long volume value</a></li><li><a href="/wiki/Category:Articles_with_short_description" title="Category:Articles with short description">Articles with short description</a></li><li><a href="/wiki/Category:Short_description_matches_Wikidata" title="Category:Short description matches Wikidata">Short description matches Wikidata</a></li></ul></div></div> </div> </main> </div> <div class="mw-footer-container"> <footer id="footer" class="mw-footer" > <ul id="footer-info"> <li id="footer-info-lastmod"> This page was last edited on 21 November 2024, at 14:54<span class="anonymous-show"> (UTC)</span>.</li> <li id="footer-info-copyright">Text is available under the <a href="/wiki/Wikipedia:Text_of_the_Creative_Commons_Attribution-ShareAlike_4.0_International_License" title="Wikipedia:Text of the Creative Commons Attribution-ShareAlike 4.0 International License">Creative Commons Attribution-ShareAlike 4.0 License</a>; additional terms may apply. By using this site, you agree to the <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Terms_of_Use" class="extiw" title="foundation:Special:MyLanguage/Policy:Terms of Use">Terms of Use</a> and <a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy" class="extiw" title="foundation:Special:MyLanguage/Policy:Privacy policy">Privacy Policy</a>. Wikipedia® is a registered trademark of the <a rel="nofollow" class="external text" href="https://wikimediafoundation.org/">Wikimedia Foundation, Inc.</a>, a non-profit organization.</li> </ul> <ul id="footer-places"> <li id="footer-places-privacy"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Privacy_policy">Privacy policy</a></li> <li id="footer-places-about"><a href="/wiki/Wikipedia:About">About Wikipedia</a></li> <li id="footer-places-disclaimers"><a href="/wiki/Wikipedia:General_disclaimer">Disclaimers</a></li> <li id="footer-places-contact"><a href="//en.wikipedia.org/wiki/Wikipedia:Contact_us">Contact Wikipedia</a></li> <li id="footer-places-wm-codeofconduct"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Universal_Code_of_Conduct">Code of Conduct</a></li> <li id="footer-places-developers"><a href="https://developer.wikimedia.org">Developers</a></li> <li id="footer-places-statslink"><a href="https://stats.wikimedia.org/#/en.wikipedia.org">Statistics</a></li> <li id="footer-places-cookiestatement"><a href="https://foundation.wikimedia.org/wiki/Special:MyLanguage/Policy:Cookie_statement">Cookie statement</a></li> <li id="footer-places-mobileview"><a href="//en.m.wikipedia.org/w/index.php?title=IEEE_802.2&mobileaction=toggle_view_mobile" class="noprint stopMobileRedirectToggle">Mobile view</a></li> </ul> <ul id="footer-icons" class="noprint"> <li id="footer-copyrightico"><a href="https://wikimediafoundation.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/static/images/footer/wikimedia-button.svg" width="84" height="29" alt="Wikimedia Foundation" loading="lazy"></a></li> <li id="footer-poweredbyico"><a href="https://www.mediawiki.org/" class="cdx-button cdx-button--fake-button cdx-button--size-large cdx-button--fake-button--enabled"><img src="/w/resources/assets/poweredby_mediawiki.svg" alt="Powered by MediaWiki" width="88" height="31" loading="lazy"></a></li> </ul> </footer> </div> </div> </div> <div class="vector-settings" id="p-dock-bottom"> <ul></ul> </div><script>(RLQ=window.RLQ||[]).push(function(){mw.config.set({"wgHostname":"mw-web.codfw.main-f69cdc8f6-7pnpd","wgBackendResponseTime":154,"wgPageParseReport":{"limitreport":{"cputime":"0.360","walltime":"0.455","ppvisitednodes":{"value":1383,"limit":1000000},"postexpandincludesize":{"value":50249,"limit":2097152},"templateargumentsize":{"value":603,"limit":2097152},"expansiondepth":{"value":19,"limit":100},"expensivefunctioncount":{"value":1,"limit":500},"unstrip-depth":{"value":1,"limit":20},"unstrip-size":{"value":45825,"limit":5000000},"entityaccesscount":{"value":0,"limit":400},"timingprofile":["100.00% 360.370 1 -total"," 44.90% 161.813 1 Template:Reflist"," 25.28% 91.113 1 Template:IEEE_standards"," 24.79% 89.351 2 Template:Navbox"," 24.74% 89.142 2 Template:Cite_book"," 21.36% 76.991 1 Template:Short_description"," 13.15% 47.402 2 Template:Pagetype"," 8.12% 29.269 1 Template:Cite_IETF"," 4.67% 16.846 3 Template:Main_other"," 4.08% 14.685 1 Template:SDcat"]},"scribunto":{"limitreport-timeusage":{"value":"0.191","limit":"10.000"},"limitreport-memusage":{"value":4723609,"limit":52428800}},"cachereport":{"origin":"mw-web.codfw.main-f69cdc8f6-5blz9","timestamp":"20241122160151","ttl":2592000,"transientcontent":false}}});});</script> <script type="application/ld+json">{"@context":"https:\/\/schema.org","@type":"Article","name":"IEEE 802.2","url":"https:\/\/en.wikipedia.org\/wiki\/IEEE_802.2","sameAs":"http:\/\/www.wikidata.org\/entity\/Q965758","mainEntity":"http:\/\/www.wikidata.org\/entity\/Q965758","author":{"@type":"Organization","name":"Contributors to Wikimedia projects"},"publisher":{"@type":"Organization","name":"Wikimedia Foundation, Inc.","logo":{"@type":"ImageObject","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-hor-googpub.png"}},"datePublished":"2001-11-05T16:45:22Z","dateModified":"2024-11-21T14:54:13Z","headline":"IEEE standard"}</script> </body> </html>